At Ferny Grove, the overnight temperatures were close to average. Daytime temperatures were close to average but was the coolest for March in 8 years. In the Brisbane area many of the official sites observed above average overnight temperatures but was near average at many sites. Daytime temperatures were near or below average at most of the official sites. Rainfall at Ferny Grove was well above average and in the highest 10% of records with frequent rainfall activity and cloud cover throughout the month. In the Brisbane area all of the official sites observed well above average rainfall totals that was record high at some locations. At Ferny Grove air pressure was below average, mean, mean minimum, and mean maximum relative humidity was above average, mean minimum, mean maximum and mean dew point was near average, wind speed was above average and there were 2 thunderstorms (3 thunder days).
Monthly Mean Daily Minimum Temperature: 19.4 ºC, 0.2 ºC above average and 0.7 ºC higher than same month in 2020. This is the sixth lowest on record for March and the lowest since 19.7 ºC in 2018. In the Brisbane area many of the official sites observed above average minimum temperatures, whilst many of the coastal sites measured close to average mean minimum temperatures. The sites observing close to average mean minimum temperatures were between 0.1 ºC below average at Redcliffe, with a mean minimum temperature of 20.7 ºC and 0.5 ºC above average at Brisbane Aero (20.3 ºC). The remaining sites that observed above average mean minimum temperatures were between 0.6 ºC above average at Beerburrum (19.3 ºC) and 1.5 ºC above average at Gatton (18.8 ºC). Archerfield observed a mean minimum temperature of 19.5 ºC (1 ºC above average). The highest mean minimum temperature was 21.3 ºC at Cape Moreton Lighthouse (0.1 ºC above average) and the lowest mean minimum temperature was 17.4 ºC at Canungra. Brisbane observed a mean minimum temperature of 20.6 ºC and was 0.4 ºC above average.
Monthly Mean Daily Maximum Temperature: 28.7 ºC, equal to the long term average and 0.4 ºC lower than same month in 2020. This is the fourth lowest on record for March and the lowest since 28.6 ºC in 2013. Mean maximum temperatures observed by the official sites in the Brisbane area were near average or below average at most sites. The exception to this was Cape Moreton Lighthouse that was 0.7 ºC above average with a mean maximum temperature of 26.8 ºC and measured the lowest mean maximum temperature of all the official sites. The sites that measured close to average mean maximum temperatures ranged between 0.5 ºC below average at Beaudesert and Logan City Treatment Plant with a mean maximum temperature of 28.7 ºC and 28 ºC respectively and 0.2 ºC below average at Amberley (29.2 ºC) and Redcliffe (27.7 ºC). The remaining sites that were below average were 0.6 ºC below average at Brisbane and Brisbane Aero (28.5 ºC and 27.4 ºC respectively) and 0.7 ºC below average at Beerburrum (28 ºC). The highest mean maximum temperature of all the official sites was 29.3 ºC at Gatton (0.3 ºC above average).
Mean Monthly Temperature: 24 ºC, 0.1 ºC above average, 0.1 ºC higher than the same month in 2020. This is the fifth lowest on record for March and the highest since 25.9 ºC in 2019.
Lowest Temperature: 14.8 ºC on 31 March 2021 at 6:18 AM. Same month in 2020 was 15.1 ºC. This is the third lowest on record daily and monthly minimum temperature for March and the lowest since 14.1 ºC in 2019 on 31 March at 4:36 AM. Official stations in the Brisbane area observed the lowest temperature of the month at most sites on the 31st and at some sites on the 5th, 25th and 26th. The lowest was 13.9 ºC at Amberley on the 5th and the highest was 19 ºC at Point Lookout on the 31st. In the Brisbane area there were some cool nights throughout the month that mostly occurred on the 5th and from the 25th. Brisbane observed its lowest temperature of 16.7 ºC on the 25th.
Highest Temperature: 34.6 ºC on 2 March 2021 at 12:35 PM. The same month in 2020 was 35.2 ºC. This is the equal fifth lowest monthly maximum temperature for March on record, the lowest since 32.7 ºC in 2016 on 19 March at 12:35 PM, the equal twelfth highest daily maximum temperature and the highest since 35.2 ºC on 2 March 2020 at 2:33 PM. The official sites measured the highest temperature for the month at most sites on the 2nd and at some sites on the 1st, 24th and 25th. The lowest was 29.9 ºC at Cape Moreton Lighthouse on the 2nd and the highest was 37.4 ºC at Gatton on the 2nd. The highest temperature observed at Brisbane was 33.2 ºC on the 2nd. During the month there were warm days during many days in the first half of the month that peaked on the 2nd and some warmth returned on the 24th to 29th.
Lowest Daily Maximum Temperature: 21.3 ºC on 17 March 2021 at 8:58 AM. This is the third lowest daily maximum temperature on daily and monthly basis for March on record, the highest since 23.6 ºC in 2018 on 6 March at 10:25 AM and the lowest since the current record high of 20.9 ºC on 9 March 2020 at 9:00 AM. Same month in 2020 was 20.9 ºC. The official sites measured the coolest day of the month on the 17th at many sites and on the 15th, 22nd and 31st at some coastal sites. These ranged between 21.2 ºC at Gatton on the 17th and 25ºC at Point Lookout on the 15th and 22nd. Brisbane observed 22.3 ºC on the 17th. Brisbane Aero observed a new record low for the daily maximum temperature of 22.2 ºC exceeding the previous record of 22.5 ºC on the 12 March 2003. Throughout the month there were many cool days and especially between the 15th and 17th, 21st to 23rd and 30th and 31st with persistent cloud cover.
Highest Daily Minimum Temperature: 22.6 ºC on 1 March 2021 at 5:33 AM. This is the fifth lowest daily highest minimum temperature on record for March, the lowest since 22.1 ºC in 2016 on 13 March at 4:10 AM, the equal tenth highest daily minimum temperature and the highest since 22.7 ºC on 7 March 2020 at 5:49 AM. Same month in 2020 was 24.4 ºC. In the Brisbane area the warmest nights occurred on the 1st at many sites and on the 2nd, 3rd and 24th at some sites. These ranged between 21.5 ºC at Beaudesert on the 3rd and 24.1 ºC at Brisbane and Cape Moreton Lighthouse on the 1st. There were many warm nights throughout the month that occurred during most nights until the 24th.
Monthly Mean Minimum Grass Temperature: 17.9 ºC (0.4 ºC higher than same month in 2020).
Lowest Daily Minimum Grass Temperature: 13 ºC on 31 March 2021 (0.8 ºC lower than same month in 2020). This coincided with the lowest minimum air temperature of 14.8 ºC for the month.
Highest Daily Minimum Daily Grass Temperature: 21.3 ºC on 1 March 2021 (1.5 ºC lower than same month in 2020). This coincided with the highest minimum air temperature of 22.6 ºC for the month.
Highest Minimum Grass Temperature Depression: 2.8 ºC on 25 March 2021 with a minimum grass temperature of 13.2 ºC and an air temperature of 16 ºC.
Lowest Minimum Grass Temperature Depression: 0 ºC on 22 March 2021 with a minimum grass temperature of 20.6 ºC and an air temperature of 20.6 ºC.
Minimum temperatures in March were near average or above average before below average temperatures in the last week of the month. The 1st was 3 ºC above average, 1 ºC above average on the 2nd, 3 ºC above average on the 3rd and 1 ºC above average on the 4th. The temperature cooled to 3 ºC below average on the 5th, was near average on the 6th and was 1 ºC above average on the 7th and 8th. The 9th to 11th was 2 ºC above average, cooling back to 1 ºC above average on the 12th and 13th and to near average on the 14th. The 15th warmed to 3 ºC above average, then 1 ºC below average on the 16th to 19th and warmed to 2 ºC above average on the 20th and 21st. The 22nd was 1 ºC above average, 2 ºC above average on the 23rd and 24th before cooler nights from the 25th. The 25th and 26th was 3 ºC below average, near average on the 27th, 4 ºC below average on the 28th, 2 ºC below average on the 29th, 1 ºC below average on the 30th and cooled to 4 ºC below average on the 31st.
Maximum temperatures during March saw a mixture of below and above average temperatures throughout the month, with a number of near average or below average maximum temperatures in the middle of the month. The 1st was 1 ºC above average, warming to 5 ºC above average on the 2nd before cooling to 2 ºC below average on the 3rd and 3 ºC below average on the 4th. The 5th was 3 ºC above average before cooling to 1 ºC below average on the 6th and to near average on the 7th. The 8th to 10th were 3 ºC above average. The 11th was 1 ºC below average, 1 ºC above average on the 12th, warmed to 2 ºC above average on the 13th and was 4 ºC above average on the 14th. It was 7 ºC below average on the 15th, 5 ºC below average on the 16th, 7 ºC below average on the 17th and eased to 1 ºC below average on the 18th. The 19th was near average, cooled to 1 ºC below average on the 20th and 21st and cooled to 6 ºC below average on the 22nd. On the 23rd it was 2 ºC below average, 2 ºC above average on the 24th, warmed to 3 ºC above average on the 25th and was 2 ºC above average on the 26th. The 27th and 28th was 3 ºC above average, 2 ºC above average on the 29th before cooling to 2 ºC below average on the 30th and 31st.
The mean year to date temperature of 24.8 ºC was 0.2 ºC below average and the lowest for January to March since 24.4 ºC in 2013.
Heatwave Conditions (Maximum temperatures): Nil
Monthly Mean Daily Minimum MSL Pressure: 1011.6 hPa (2.6 hPa lower than same month in 2020). This is the third lowest for March and the lowest since 1010 hPa in 2017.
Monthly Mean Daily Maximum MSL Pressure: 1016 hPa (2.6 hPa lower than same month in 2020). This is the third lowest on record for March and the lowest since 1014.6 hPa in 2017.
Monthly Mean MSL Pressure: 1013.8 hPa (1.1 hPa below average, 2.5 hPa lower than same month in 2020). This is the fourth lowest on record for March and the lowest since 1012.3 hPa in 2017.
Lowest MSL Pressure: 1007.3 hPa on 6 March 2021 at 4:33 PM. The same month in 2020 saw 1002.9 hPa. This is the fourth lowest monthly and daily minimum air pressure for March and the lowest since 995.3 hPa in 2017 on 30 March at 7:40 PM.
Highest MSL Pressure: 1024.5 hPa on 18 March 2020 at 8:48 AM. The same month in 2020 saw 1020.6 hPa. This is the second lowest March monthly maximum air pressure on record, the highest since the current record high of 1017.9 hPa in 2017 on 19 March at 9:45 AM, the equal sixth-fifth highest daily March maximum air pressure and the highest since 1017.6 hPa on 30 March 2020 at 12:00 AM.
Note: Air pressure measurements are being closely monitored to maintain its accuracy. Over the month of March, a difference of 0.18 hPa lower compared to the official BoM Brisbane site – No. 040913 was observed which is deemed as being optimum.
Monthly Mean Daily Minimum Humidity: 60.4 % (8.9 % higher than same month in 2020 and 3 % above average). This is the fourth highest on record for March and the highest since 62.3 % in 2018.
Monthly Mean Daily Maximum Humidity: 96.1 % (4.7 % higher than same month in 2020 and 2.9 % above average). This is the second highest on record for March and the highest since the current record high of 97.6% in 2010.
Monthly Mean Humidity: 78.2 % (6.8 % higher than same month in 2020 and 3 % above average). This is the third highest on record for March and the highest since 79 % in 2018.
Lowest Humidity: 32 % on 28 March 2021 at 12:32 PM (2 % lower than this month in 2020). This is the third lowest monthly minimum humidity for March on record, the lowest since the current record low of 15 % in 2019 on 12 March at 2:45 PM, the sixth lowest daily minimum humidity for March and the lowest since 17% on 31 March 2020 at 2:13 PM.
Highest Humidity: 99 % on 24 March 2021 at 4:24 PM (equal to this month in 2020). This is the second highest monthly March maximum humidity on record and the highest since 100% on 18 March 2020 at 7:59 PM.
Monthly mean daily minimum dew point: 17.5 ºC (0.1 ºC below average). This is the fifth highest monthly mean minimum dew point for March on record and the highest since 18.1 ºC in 2018.
Monthly mean daily maximum dew point: 21.8 ºC (0.5 ºC above average). This is the fourth highest mean maximum dew point for March and the highest since the 22.1 ºC in 2019.
Monthly mean dew point: 19.7 ºC (0.2 ºC above average). This is the fifth highest monthly mean dew point for March and the highest since 20.2 ºC in 2018.
Lowest dew point: 12.1 ºC on 25 March 2021 at 5:09 PM. This is the fourth lowest monthly minimum dew point for March on record, the highest since 15.2 ºC in 2018 on 9 March at 11:15 PM, the equal sixth lowest daily dew point for March and the lowest since 15.2 ºC in 2018 on 9 March at 11:15 PM.
Highest dew point: 25.7 ºC on 2 March 2021 at 2:51 PM. This is the equal highest monthly and daily maximum dew point on record for March equalling the current record of 25.7 ºC in 2020 on 7 March at 3:58 PM.
Maximum Wind Gust: 52 km/hr on 2 March 2021 at 5:45 PM. This is the fourth highest maximum wind gust on record for March, the seventh highest daily wind gust for March and the highest since 58.2 km/hr in 2018 on 12 March at 1:13 PM.
Maximum Wind Speed: 28 km/hr on 2 March 2021 at 5:45 PM (Light Force Wind). This is the sixth highest and lowest monthly maximum wind speed for March on record, the equal twelfth highest daily wind speed for March and the equal highest since 28 km/hr on 2019 on 15 March at 4:19 PM.
Wind Run: 2157.1 km (1031.8 km lower than same month in 2020), 353.1 km below average and 1.3 % below average. This is the third highest on record for March total wind run and the lowest since 1763.1 km in 2018.
Monthly Mean Wind Speed: 1.5 km/hr (2.7 km/hr lower than this month in 2021), 1.5 km/hr below the long term average). This is the second lowest on record for March and the lowest since the current record low of 0.8 km/hr in 2012.
Daily Mean Maximum Wind Gust: 23.2 km/hr (2.2 km/hr lower than this month in 2020), 1.7 km/hr above average and 7.9 % above average. This is the third lowest daily mean maximum wind gust on record for March and the lowest since the current record low of 22.3 km/hr in 2011.
Daily Mean Maximum Wind Speed: 12 km/hr, 0.6 km/hr lower than this month in 2020), 3.5 km/hr above average and 41.3 % above average. This is the second lowest on record for March and lowest since the current record low of 5.7 km/hr in 2012.
Dominant Direction: NE (S this month last year).
Monthly Rainfall Total: 297.3 mm (173.1 mm above average) and 239.4% of the long-term average. This total is in decile 10/ 94th percentile which ranks as very high and 174.3 mm above the long-term median (248.5 % of long term median). This total is higher than this month in 2020 which was 142.4 mm, the third highest on record for March and the highest since 375.4 mm in 2017.
Long period rainfall totals improved for all periods as compared with February 2021. Many of the long period totals became slightly above average, though the longer time periods have remained with negative anomalies. 6 monthly rainfall improved by 179.9 mm to 85.2 mm above average (decile 8) and 9 monthly rainfall improved by 174.6 mm to 66 mm above average (decile 7). 12 monthly rainfall improved by 149.8 mm but remained 106.6 mm below average (decile 4). 18 month rainfall saw an improvement of 191.2 mm and was 23.4 mm above average (decile 7). 24 month, 36 month and 48 month all remained below average but have improved by 188.1 mm to 123.9 mm below average for 24 month rainfall (decile 4), improved by 106.9 mm to 237.7 mm below average for 36 month rainfall (decile 4) and by 250 mm to 110.3 mm for 48 month rainfall (decile 5). Compared with the same period in 2020 the long period rainfall totals were mixed between improving and worsening for 6, 9, 12 and 18 monthly but have worsened for 24, 36 and 48 monthly totals. The greatest improvement was 18-month rainfall from 88.8 mm below average to 23.4 mm above average and greatest deterioration was 36 month rainfall from 83 mm below average to 237.7 mm below average. However, many periods have now seen lower rainfall deficiencies as compared with the start of summer in December 2020.
Rainfall in the Brisbane was well above average at all the official sites in the Brisbane area and was record high at several locations. Rainfall totals at all sites were at least 200 mm and was generally at least twice the long term average at all sites. Many sites observed totals that ranked historically as high that ranged between 167 % of the long term average at Cape Moreton Lighthouse (293.8 mm) and 218 % of the long term average at Beaudesert (293.8 mm). Some sites observed total that ranked as very high and these were Brisbane Aero at 230 % of the long term average (272 mm), Logan City Treatment Plant at 267 % of the long term average and Redcliffe at 185 % of the long term average (270.2 mm). Brisbane observed a total of 300.6 mm and was the highest on record exceeding the previous record high of 247.4 mm in 2001. Point Lookout also was record high with a total of 647.8 mm exceeding the previous record high of 267.8 mm in 2010. Some other sites observed record high March rainfall totals or the highest in as much as 27 to 58 years that included Cape Moreton Lighthouse but missing historical data may mean a higher total was not reported. The highest total of all the official sites was 710.7 mm at Mt Tamborine Fern St and the highest total of the main official sites was 432 mm at Canungra.
In the Brisbane area throughout the month there were persistent showers, periods of rain and thunderstorms. A very wet period occurred over several days from the 21st as a result of inland trough that combined with a coastal trough along the southern Queensland coast and northern New South Wales. On the 22nd Mount Tamborine observed a total of 212 mm on the 22nd and 225 mm on the 23rd, which resulted in a 2-day total of 437 mm that was highest 2 day rainfall total in March for that location. The bureau reported that “Major flooding was recorded on the Logan River from the 23rd, and major flooding also occurred on the Bremer River, Warrill and Laidley creeks on the 23rd, with all peaks across these creeks and rivers easing by the 25th.”
Number of Rain Days (0.1 mm or greater): 17 days, 2 less than same month in 2020 and 4.4 days above average. This is sixth highest on record for March and is the highest since 18 days in 2019.
Highest Daily Total: 129.7 mm on 22 March 2021. This is the third highest daily total on record for March on monthly and daily basis and the highest since the current record high of 153.5 mm in 2004 on 6 March. For all months this was the total daily total since 143.4 mm on 24 February 2018. The highest daily total in the Brisbane area of all official sites was 229.2 mm at Point Lookout on the 23rd. Several official sites observed new record highs for March daily rainfall totals. This included Brisbane Aero with a total of 109.4 mm (old record was 102.2 mm on 6 March 2004) and Point Lookout with a total of 229.2 mm (old record was 102.6 mm on 2 March 2010).
The year to date total rainfall was 519.3 mm (88.3 mm above average and 17 % above average) and compared with previous annual totals is the lowest since 287.9 mm in 2019 and the thirteenth highest on record. This is lower than the January to March rainfall total in 2020, which saw both well above average rainfall in January and February in contrast to near average rainfall in 2021 until the above average rainfall in March 2021.
The year to date number of rain days of 51 was 16 days above the long term average. This is the highest on record as compared with previous January to March totals since 52 days in 2015 and the third highest on record.
Monthly Rainfall Total – (automatic gauge) 24 hours to 9am: 228 mm (69.3 mm less than the site official standard gauge and within 23.3 %). Highest daily total of automatic gauge, (24 hours to 9am): 95.4 mm on 22 March 2021, (24 hours from midnight): 70 mm on 21 March 2021.
Note: This automatic gauge for the month of March, did not reached the expected accuracy (of +/- 10% of the standard gauge) at -23.3%.
A light shower in the mid-morning of the 1st. On the 2nd was a moderate gusty thunderstorm with a very brief period of heavy rainfall in the early evening before a light shower later in the evening. 10 mm was measured on the 3rd. On the 4th were light showers in the mid-morning and in the early afternoon, with 1.1 mm measured on the 5th. A light few drops in the mid-afternoon and light showers in the evening of the 6th with 1 mm measured on the 7th. The 8th saw light showers in the late afternoon and in the evening that was followed by light to moderate showers with heavy falls later in the early hours clearing in the early morning on the 9th. 18.6 mm was observed on the 9th. Light rain in the evening of the 10th brought no measurable rainfall. In the afternoon and in the mid-evening of the 11th were light showers with 2.5 mm measured on the 12th. In the late morning and early evening of the 12th were light showers and 0.4 mm was measured on the 13th. Light rain in the late evening of the 14th and light rain in the first hour of the day on the 15th brought 6.7 mm on the 15th.
Light showers in the morning of the 15th became light rain at times/ drizzle from the morning, followed by light rain at times in the early hours clearing in the early morning on the 16th. 11.8 mm was measured on the 16th. Drizzle and light rain in the afternoon and drizzle and light rain at times in the evening on the 16th. On the 17th was drizzle and light rain that temporarily cleared in the early morning before drizzle, light rain, and light showers until the late evening. On the 18th was a light shower in the early morning with some drizzle in the early to mid-morning. 10.6 mm was measured on the 17th and 9.5 mm was measured on the 18th. In the late afternoon of the 18th were light showers with 2.1 mm measured on the 19th. In the late evening on the 19th was a brief moderate to heavy shower, followed by light showers from the early hours to the mid-morning of the 20th. 11 mm was measured on the 20th. On the 21st were light showers in the early hours and in the early morning with 8.3 mm measured.
In the late morning of the 21st was a light shower and light to moderate showers from the mid afternoon that tended to rain from the late afternoon with showers. A moderate thunderstorm later in the afternoon with a short period of heavy rainfall (9 mm in 10 minutes), that was followed by light to moderate falls with some moderate falls in the evening with the rainfall ceasing at times. On the 22nd were light to moderate rain periods with some heavy falls early in the day then light rain and drizzle during the rest of the day along with some showers in the early hours. On the 23rd was drizzle and light rain at times from early before becoming continuous from late in the early hours, with some showers with moderate to heavy falls later in the early hours and in the early morning. During the morning was drizzle and light rain with light to moderate showers before easing during the afternoon and cleared in the mid-afternoon. Light rain in the mid to late evening, before clearing. 129.7 mm was measured on the 22nd, 50.6 mm on the 23rd and 23 mm on the 24th. On the 29th was a light few drops in the late afternoon from a nearby thunderstorm but with no measurable rainfall. A light shower in the early afternoon of the 30th with 0.3 mm measured on the 31st. A light few drops in rain in the mid-afternoon of the 31st.
Most of the total rainfall occurred between the 14 March and 24 March when 263.3 mm of rainfall fell and 203.3 mm was measured between the 22 and 24 March. This is the wettest period based on consecutive rainfall totals since 364.9 mm between the 3 February and 14 February 2020 and the second wettest period for March where the wettest is 278.2 mm between the 28 March and 31 March 2017. In the past 30 years the wet spell was in the top 7% of all wet spells for all months.
There was 2 days with falls of at least 25 mm (equal to same month in 2020) with 3 days of less than 1 mm (3 less than same month in 2020).
Highest rainfall rate was 99.4 mm/hr on the 2 March 2021 at 5:40 PM. This is the fourth lowest monthly rainfall rate for March on record, the lowest since 80.8 mm/hr in 2016 on 30 March at 4:10 PM, the tenth highest daily rainfall rate and the highest since 192 mm/hr on 6 March 2020 at 5:27 PM.
The highest hourly rainfall total was 22 mm on the 21 March 2021 at 4:46 PM. This is the fifth lowest hourly rain for March, the lowest since 80.8 mm in 2016 on 30 March at 4:10 PM, the ninth highest daily hourly rain for March and the highest since 40.6 mm in 2020 on 6 March at 5:47 PM.
Number of severe thunderstorms: 0
Number of thunderstorms: 2 (Mild: 0, Moderate: 2)
Number of thunder days: 3 days
Number of nearby storms: 1
Severe thunderstorms of note in the Brisbane area: Nil
NOTE: This is a summary of the aforementioned monthly records exceeded over a monthly basis. Additionally, it lists records that are the lowest or highest in at least 5 years. See end notes for more information about record periods.
Record low March mean maximum temperature in at least 5 years |
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Observed [C] |
Most recent lower |
Years of record |
Monthly average |
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28.7 |
28.6 in 2013 |
11 |
28.7 |
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Record low March maximum temperature in at least 5 years |
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Observed [C] |
Most recent lower |
Years of record |
Monthly average |
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34.6 on 2nd at 12:35 PM |
32.7 in 2016 on 19th at 12:35 PM |
11 |
28.7 |
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Record low March lowest daily minimum temperature in at least 5 years |
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Observed [C] |
Most recent lower |
Years of record |
Monthly average |
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22.6 on 1st at 5:33 AM |
22.1 in 2016 on 13th at 4:10 AM |
11 |
19.2 |
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Record high March daily mean maximum relative humidity in at least 5 years |
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Observed [%] |
Most recent higher |
Years of record |
Monthly average |
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96.1 |
97.6 in 2010 |
11 |
93.2 |
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Record high March daily maximum dew point |
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Observed [C] |
Old record |
Years of record |
Monthly average |
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25.7 on 2nd at 2:51 PM |
=25.7 in 2020 on 7th at 3:58 PM |
11 |
21.3 |
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Record low March mean daily wind gust in at least 5 years |
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Observed [km/hr] |
Most recent lower |
Years of record |
Monthly average |
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23.2 |
22.3 in 2011 |
11 |
21.5 |
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Record low March mean daily wind speed in at least 5 years |
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Observed [km/hr] |
Most recent lower |
Years of record |
Monthly average |
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1.5 |
0.8 in 2012 |
11 |
3 |
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Record high March highest daily rainfall total in at least 5 years |
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Observed [mm] |
Most recent higher |
Years of record |
Monthly average |
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129.7 on 22nd |
153.5 in 2004 on 6th |
33 |
48.8 |
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NOTE: These records are drawn from automatic data record for this site. See end notes for more information.
All time records |
No records |
Monthly records |
Lowest Maximum Temperature 20.6 °C on 17 Mar 2021 at 10:45 am |
Summary of Averages and Extremes for March 2021 for Ferny Grove, Brisbane, Queensland, Australia |
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Min Temp |
Max Temp |
Mean Temp |
Temp Range |
Min Grass Temp |
Min Grass Temp Depression |
Min Relative Humidity |
Max Relative Humidity |
Mean Relative Humidity |
Min MSL pressure |
Max MSL Pressure |
Mean MSL Pressure |
Dew Point |
Max Wind Gust |
Max Wind Speed |
Daily rain |
Average |
19.4 |
28.7 |
24.0 |
9.2 |
17.9 |
1.5 |
60.4 |
96.1 |
78.2 |
1011.6 |
1016.0 |
1013.8 |
19.7 |
23.2 |
12.0 |
9.6 |
Min |
14.8 |
21.3 |
19.7 |
1.9 |
13.0 |
0.0 |
32 |
92 |
64 |
1001.9 |
1006.4 |
1004.2 |
12.1 |
15.0 |
7.0 |
|
Max |
22.6 |
34.6 |
27.6 |
16.1 |
21.3 |
2.8 |
97 |
99 |
98 |
1017.3 |
1020.9 |
1019.1 |
25.7 |
52.0 |
28.0 |
129.7 |
Total |
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297.3 |
Summary for March 2021 from long term average for Ferny Grove, Brisbane, Queensland, Australia |
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|
Temperature |
Relative Humidity |
MSL Pressure |
Dew Point |
Wind Gust |
Wind Speed |
Rainfall |
Rainfall as Fraction of monthly average (%) |
Average |
+0.1 |
+3.0 |
-1.1 |
+0.2 |
+1.7 |
+3.5 |
+173.1 |
239.4 |
Min |
+0.2 |
+3.0 |
|
-0.1 |
|
|
|
|
Max |
-0.0 |
+2.9 |
|
+0.5 |
|
|
+248.5 |
|
Monthly averages and extremes for Year of 2021 to Date for Ferny Grove, Brisbane, Queensland, Australia |
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|
Temperature |
Temperature Anomaly from Long Term Avg. |
Rain total |
Rain Anomaly |
Rain days |
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|
Avg Min |
Avg Max |
Low Min |
High Max |
Average |
Min |
Max |
Average |
|
|
|
Jan-21 |
20.0 |
29.9 |
16.6 |
36.6 |
24.9 |
-0.6 |
-0.8 |
-0.7 |
95.8 |
-49.2 |
19 |
Feb-21 |
20.3 |
30.4 |
17.3 |
36.1 |
25.3 |
-0.0 |
+0.4 |
+0.2 |
126.2 |
-35.6 |
14 |
Mar-21 |
19.4 |
28.7 |
14.8 |
34.6 |
24.0 |
+0.2 |
-0.0 |
+0.1 |
297.3 |
+173.1 |
17 |
YTD |
19.9 |
29.7 |
14.8 |
36.6 |
24.8 |
-0.2 |
-0.1 |
-0.2 |
519.3 |
+88.3 |
46 |
Min Temperature and time of occurrence for March 2021 |
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1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
22.6 |
20.6 |
22.3 |
20.2 |
15.8 |
18.9 |
20.1 |
20.3 |
20.9 |
21.2 |
21.4 |
19.8 |
19.8 |
19.2 |
22.0 |
18.2 |
5:33 A |
5:40 A |
5:03 A |
6:26 A |
5:55 A |
5:59 A |
5:33 A |
6:07 A |
5:56 A |
4:06 A |
2:13 A |
6:01 A |
5:53 A |
5:52 A |
9:00 A |
5:30 A |
17 |
18 |
19 |
20 |
21 |
22 |
23 |
24 |
25 |
26 |
27 |
28 |
29 |
30 |
31 |
|
18.1 |
18.4 |
18.7 |
20.7 |
21.6 |
20.6 |
21.2 |
21.6 |
16.0 |
16.1 |
18.8 |
15.7 |
17.7 |
18.4 |
14.8 |
|
5:54 A |
10:19 P |
2:13 A |
12:55 A |
6:02 A |
9:00 A |
3:00 P |
4:11 A |
5:44 A |
6:22 A |
6:18 A |
6:05 A |
6:13 A |
2:48 A |
6:18 A |
|
Max Temperature and time of occurrence for March 2021 |
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1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
29.5 |
34.6 |
26.8 |
26.1 |
31.9 |
28.1 |
28.7 |
31.2 |
31.8 |
31.2 |
27.8 |
28.9 |
30.3 |
32.4 |
21.6 |
24.1 |
2:19 P |
12:35 P |
2:24 P |
2:03 P |
1:43 P |
12:39 P |
11:53 A |
12:14 P |
2:34 P |
1:24 P |
9:59 A |
11:00 A |
12:25 P |
12:59 P |
1:30 P |
11:29 A |
17 |
18 |
19 |
20 |
21 |
22 |
23 |
24 |
25 |
26 |
27 |
28 |
29 |
30 |
31 |
|
21.3 |
27.8 |
28.9 |
27.3 |
28.1 |
22.5 |
26.3 |
30.9 |
31.8 |
30.6 |
31.2 |
31.7 |
30.7 |
27.1 |
27.2 |
|
8:58 A |
12:09 P |
11:43 A |
12:31 P |
11:47 A |
8:53 A |
9:00 A |
2:42 P |
2:11 P |
1:22 P |
1:01 P |
1:39 P |
1:39 P |
1:59 P |
2:14 P |
|
Daily Rainfall for March 2021 |
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1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
0.0 |
0.0 |
10.0 |
0.0 |
1.1 |
0.0 |
1.0 |
0.0 |
18.6 |
0.0 |
0.1 Dew |
2.5 |
0.4 |
0.0 |
6.7 |
11.8 |
17 |
18 |
19 |
20 |
21 |
22 |
23 |
24 |
25 |
26 |
27 |
28 |
29 |
30 |
31 |
|
10.6 |
9.5 |
2.1 |
11.0 |
8.3 |
129.7 |
50.6 |
23.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.3 |
|
Temperature values coloured according to its difference from the long-term average for this month. Outlined value mark highest and lowest values.
Maximum temperatures are measured over the 24 hours from 9 am on the day of measurement. Minimum temperatures are measured over the 24 hours to 9 am of the day of measurement. This was previously different to the official time standards and measured in degrees ºC (before 2018).

Rainfall is measured over 24 hours to 9am and recorded on that day. This is the same as the official time standard and measured in millimetres. Some measurements are not made at 9am and is adjusted based on the automatic record. For other variables see Notes below.
Notes
Based on Bureau of Meteorology Climate summaries (Copyright) of which some data was obtained from. From September 2017 the Bureau of Meteorology Climate summaries were expanded to provide data from official stations in and near the Greater Brisbane “Greater capital city Statistical Area” (GCCSA).
Data Copyright Ferny Grove Weather 2021, Produced 4/7/21. Data Checking has been carried out, but errors may still be present and therefore there is no assurance of correctness. Corrections may be made at a later data if errors or deficiencies are found and/or improvements in data handling techniques are made, though data with major improvements may not be updated in this summary. Data measured with professional moderate accuracy equipment. This replaced non professional equipment of low accuracy with differences in the measured data. The new equipment measures the daily average wind speed and wind run about 40 % higher. Daily rainfall and grass minimum temperature is measured using non-professional equipment of moderate accuracy.
Site Commencement data is April 15 2009 except for daily rainfall which commenced on January 1 1987. Not all variables have been measured over the entire station record. Most variables are measured over a 24 hour period ending in the evening and over a 24 hour period from midnight effective October 5 2018. Maximum temperatures are measured over the 24 hours from 9 am on the day of measurement. Minimum temperatures are measured over the 24 hours to 9 am of the day of measurement. Rainfall is measured over 24 hours to 9am and recorded on that day. This is the same as the official time standard. Some rainfall measurements are not made at 9am and is adjusted based on the automatic record. Minimum Grass Temperature is measured over an approx. 12 hour period ending in the early morning. MSL refers to Mean Sea Level, which is the standard meteorological method of measuring air pressure reduced to sea level based on both elevation and temperature. Grass Minimum Depression is the difference of the grass minimum temperature from the air temperatures and is a positive value when the grass temperature is below the air temperature.
Up until March 9 2019 automatic records as Dew Point, Average Wind Speed, Dominant Wind Direction, Wind Run, Rain Rate and Hourly Rain are measured over a 24 hour period starting at midnight and recorded for that day. This started on the 6 October 2011. The automatic record is used for some data and also may be used if data is not available/ not suitable. From March 9 2019 the automatic record became the official record instead, simplifying this process. Until replaced on 5 October 2018 the temperature and humidity sensor is under exposed so minimum temperature and maximum humidity are incorrect and low accuracy rain gauge is used which are not used as the site’s official record. This data limitation does not apply to other measurements of temperatures, air pressure and humidity, wind gust, daily and monthly rainfall and rain days elsewhere in this summary which are recorded separately and form the official record for this site. The replacement equipment is sited in more exposed locations and therefore the limitations don’t apply, though the automatic daily rainfall doesn’t form the official data for the site.
Long term averages are based on all available long period past measurements from October 2019 whilst for non automatic rainfall is based on 1987 to 2017 average from the station record. Prior to this the long term average for Temperature, Relative Humidity and Air pressure is based on 2009 to 2015 average from the station record and wind speed is based on the 2010 to 2018 average from station record. Wind Run is 2011 to 2018 and Rain Rate and High Hourly Rain is 2011 to 2017.
The Fraction of monthly average expresses how much has fallen in respect to the long term average listed as a percentage. The decile ranking compares the rainfall total to the historical record for the site where the record is divided into 10 equal groups. Decile 1 is the lowest 10% of the record (10th percentile) and Decile 10 (90th percentile) is the highest 10% of the record. Decile 1 is considered “very low”, decile 2 and 3 “low”, decile 4 to 7 “average”, decile 8 and 9 “high” and decile 10 “very high”.