In March at Ferny Grove overnight temperatures were well above average. Daytime temperature were also above average to a greater extend than minimum temperatures and was the highest on record. Rainfall at Ferny Grove was well above average. Mean relative humidity was well below average, mean air pressure was well above average and mean dew point was below average. There were 3 thunderstorms.
Monthly mean minimum temperature: 20.4 ºC, 1.7 ºC above average and 1 ºC higher than same month in 2018. This is the second highest on record for March and the highest since the record high of 20.5 ºC in 2017.
Monthly mean maximum temperature: 31.4 ºC, 3.0 ºC above average and 2.5 ºC higher than same month in 2018. This is the highest on record for March and exceeds the previous record of 31.2 ºC in 2015.
Monthly mean temperature: 25.9 ºC, 2.3 ºC above average and 1.7 ºC higher than same month in 2018. This is the highest on record for March exceeding the old record of 25.7 ºC in 2017.
Lowest temperature: 14.1 ºC at 4:46 AM on 31 March 2019. Same month in 2018 was 14.9 ºC. This is the lowest monthly and daily minimum temperature for March on record, exceeding the previous record low of 14.3 ºC on 10 March 2012 at 5:55 AM.
Highest temperature: 41.1 ºC at 2:43 PM on 12 March 2019. Same month in 2018 was 35.5 ºC. This is the highest monthly and daily maximum temperature for March on record, exceeding the previous monthly and daily record monthly maximum temperature for March of 37.3 ºC on 5 March 2015 at 3:00 PM.
Lowest maximum temperature: 21.0 ºC at 12:40 PM on 27 March 2019. This is the lowest monthly and daily March lowest maximum temperature on record, exceeding the previous record of 21.8 ºC on 30 March 2011 at 12:04 PM. This month in 2018 was 23.6 C.
Highest minimum temperature: 22.9 ºC on 21 March 2019 at 4:39 AM. This month in 2018 was 24.0 C.
At Ferny Grove minimum temperatures were mostly above average, with a few days close to average and very few below average. The first 6 days were on average, warming slightly to 1 ºC above average on 4th and 5th. A warm spell followed between the 6th and 12th and was 2 to 3 ºC above average each day. The 13th, however was 1 ºC above average and the 14th was 4 ºC above average. The 15th to 18th was 1 ºC above average, while the 19th was 1 ºC below average and the 20th on average. Another warm spell followed from the 21st to 22nd of 2 to 4 ºC above average, reducing to 1 to 2 ºC above average during 23rd to 25th. On average minimum temperatures then followed on the 28th and 29th, 3 ºC above average on the 30th and then 5 ºC below average on the 31st.
Maximum temperatures were predominately above average, with some below average temperatures over the second half of the month. The first few days were on average, before a period of heat from the 5th to 15th. The 5th was 3 ºC above average, the 6th and 7th was 4 ºC above average and easing to 2 ºC above average on the 8th. From the 9th the heat increased with 9th being 4 ºC above average, the 10th was 6 ºC above average, the 11th was 10 ºC above average (38 ºC)and 12th was 13 ºC above average (41.1 ºC). It eased to 9 ºC above average on the 13th (37.1 ºC), 3 ºC above average on the 14th and 7 ºC above average on the 15th. It cooled to 3 ºC below average on the 16th and 2 ºC below average on the 17th. Another period of heat returned between the 19th and 26th and was 4 to 7 ºC above average. The 22nd however was 1 ºC above average and the 26th was 3 ºC above average. From the 27th it was much cooler being 7 ºC below average on the 27th, 4 ºC below average on 28th, on average on 29th and 31st and 1 ºC below average on the 30th.
Monthly mean minimum grass temperature: 19.4 ºC (1.1 ºC higher than same month in 2018)
Lowest minimum grass temperature: 11.9 ºC on 31 March 2019 (2.1 ºC lower than same month in 2018).
Highest minimum grass temperature: 21.8 ºC on 30 March 2019 (0.5 ºC lower than same month in 2018).
Highest Minimum Grass Temperature Depression: 2.3 ºC on 13 March 2019 with a minimum grass temperature of 18 ºC and an air temperature of 20.3 ºC.
Lowest Minimum Grass Temperature Depression: -0.3 ºC on 17 March 2019 with a minimum grass temperature of 20 ºC and an air temperature of 19.7 ºC.
Monthly mean minimum MSL pressure: 1012.2 hPa (0.7 hPa lower than same month in 2018).
Monthly mean maximum MSL pressure: 1017.1 hPa (0.5 hPa higher than same month in 2018).
Monthly mean MSL pressure: 1014.7 hPa (3.2 hPa above average, 0.1 hPa lower than same month in 2018).
Lowest MSL pressure: 1004 hPa on 12 March 2019 at 4:20 PM. The same month in 2018 saw 1007.3 hPa.
Highest MSL pressure: 1022.9 hPa on 1 March 2019 at 10:05 PM. The same month in 2018 saw 1021 hPa.
Monthly mean minimum relative humidity: 45.6 % (16.7 % lower than same month in 2018 and 14 % below average). This is the lowest on record exceeding the old record of 53.5 % in 2015.
Monthly mean maximum relative humidity: 89.8 % (5.8 % lower than same month in 2018 and 2.5 % below average). This is second lowest on record and the lowest since the record low of 83.9% in 2014.
Monthly mean relative humidity: 67.7 % (11.2 % lower than same month in 2017 and 8.3 % below average). This is the lowest on record exceeding the old record of 69.7 % in 2014.
Lowest relative humidity: 12 % on 12 March 2019 at 2:45 PM (32 % lower than this month in 2018). This is the lowest monthly and daily minimum humidity for March on record exceeding the old record of 31 % on 9 March 2012 at 3:30 PM.
Highest relative humidity: 97% on 18 March 2019 at 7:59 AM (1% lower than this month in 2018). This is the second lowest monthly March high humidity and the lowest since the current record low of 93% in 2014 on 28 March at 12:00 AM.
Dew point
Monthly mean minimum dew point: 15.7 ºC (2.3 ºC below average). This is the lowest monthly mean minimum dew point for March, exceeding the old record of 16.7 ºC in 2012.
Monthly mean maximum dew point: 21.5 ºC (0.5 ºC above average).
Monthly mean dew point: 18.6 ºC (0.9 ºC below average). This is the lowest monthly mean dew point for March, exceeding the old record of 18.7 ºC in 2012.
Lowest dew point: -2.2 ºC on 31 March 2019 at 2:14 PM. This is the lowest monthly and daily dew point for March on record, exceeding the old record of 12 ºC on 9 March 2012 at 3:45 PM.
Highest dew point: 24.3 ºC on 24 March 2019 at 10:12 AM. This is the second lowest monthly maximum dew point on record for March and the lowest since the record low of 23.9 ºC in 2013 on 24 March at 1:57 PM.
Wind
Highest wind gust: 46 km/hr on 15 March 2019 at 4:06 PM. The maximum wind gust this month last year was 58.3 km/hr.
Highest wind speed: 28 km/hr on 15 March 2019 at 4:19 PM (Moderate Force Wind).
Total wind run: 3118.3 km (1355.2 km higher than same month in 2018), 1795 km above average and 73.7 % above average. This is the highest on record for March total wind run exceeding the old record of 1763.1 km in 2018.
Monthly mean wind speed: 4.2 km/hr (1.8 km higher than this month in 2018), 2.5 km/hr above average and 83.3 % above average. This is the highest on record for March exceeding the old record of 2.4 km/hr in 2018.
Daily mean maximum wind gust: 26.8 km/hr (7.3 km/hr lower than this month in 2018), 1.1 km/hr below average and 4.1 % below average. This is the lowest daily mean maximum wind speed since 23.9 km/hr in 2012.
Daily mean maximum wind speed: 13.2 km/hr, 6.3 km/hr lower than this month last year, 2.2 km/hr below average and 14.2 % below average. This is the lowest daily mean maximum wind speed since the current record low of 9.9 km/hr in 2012.
Dominant direction: E (SSE this month last year).
Rainfall
Rainfall total: 236.9 mm, 112.7 mm above average (190.7 % of long term average), 120.7 mm above the long term median and 203.8 % of the long term median. This is higher than this month last year which was 190.3 mm. Automatic rain gauge was 202.4 mm (-14.6 % of manual gauge).
Highest daily rainfall total: 83.7 mm on 17 March 2019.
Number of rain days (0.1 mm or greater): 18 days, 6 less than this month last year and 5.6 days above average.
Highest rain fall rate: 217.4 mm/hr on the 15 March 2019 at 4:20 PM. This is the highest monthly and daily rainfall rate for March exceeding the previous record high of 148.8 mm/hr on 30 March 2017 at 6:52 PM.
Highest hourly rainfall total: 31.2 mm on the 15 March 2019 at 4:34 PM. This is the second highest monthly and daily maximum hourly rainfall and the highest since the current record high of 36.3 mm on 27 March 2018 at 12:10 PM.
There were 3 thunderstorms, with 7 days with thunder, along with 4 nearby thunderstorm.
Rainfall at Ferny Grove consisted of light showers early in the month, while the bulk of the rainfall occurred during the middle of the month with thunderstorms and rain with heavy falls. Showers and drizzle with some light rain at times featured at the end of the rest of the month also.
There was 6 days of morning dew.
High temperatures were a major aspect during the month with several hot days during the middle of the month. On the 12th the temperature reached 41.1 ºC and then hovered near 40 ºC for several hours.
Persistent low pressure troughs over much of the month brought instability and rainfall and also a higher number of warm to hot day than normal.
For March there were 14 existing records exceeded, along with 5 records that were highest/lowest in at least 5 years.
For more detailed analysis refer to the Monthly Meteorological Report for March 2019.
Summary of Averages and Extremes for March 2019 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 |
20.4 |
31.4 |
25.9 |
11.0 |
19.4 |
-1.0 |
45.6 |
89.8 |
67.7 |
1012.2 |
1017.1 |
1014.7 |
18.6 |
26.8 |
13.2 |
7.6 |
Min |
14.1 |
21.0 |
21.0 |
0.1 |
11.9 |
-2.3 |
12 |
80 |
50 |
1004.0 |
1010.1 |
1007.0 |
5.7 |
14.0 |
6.0 |
|
Max |
22.9 |
41.1 |
31.3 |
19.7 |
21.8 |
-0.3 |
84 |
97 |
90 |
1019.9 |
1022.9 |
1021.4 |
24.3 |
46.0 |
28.0 |
83.7 |
Total |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
236.9 |
Summary for March 2019 from long term average for Ferny Grove, Brisbane, Queensland, Australia |
||||||||
|
Temperature |
Relative Humidity |
MSL Pressure |
Dew Point |
Wind Gust |
Wind Speed |
Rainfall |
Rainfall as Fraction of monthly average (%) |
Average |
+2.3 |
-8.3 |
-0.6 |
-0.9 |
-0.3 |
-6.3 |
+112.7 |
190.7 |
Min |
+1.7 |
-14.0 |
|
-2.3 |
|
|
|
|
Max |
+3.0 |
-2.5 |
|
+0.5 |
|
|
+193.5 |
|
Monthly averages and extremes for Year of 2019 to Date for Ferny Grove, Brisbane, Queensland, Australia |
|
|
|||||||||
|
Temperature |
Temperature Anomaly from Long Term Avg. |
Rain total |
Rain Anomaly |
Rain days |
||||||
|
Avg Min |
Avg Max |
Low Min |
High Max |
Average |
Min |
Max |
Average |
|
|
|
Jan-19 |
20.8 |
32.0 |
18.5 |
34.3 |
26.4 |
-0.0 |
+1.2 |
+0.6 |
10.4 |
-134.6 |
9 |
Feb-19 |
20.9 |
31.2 |
16.8 |
36.7 |
26.0 |
+0.7 |
+1.1 |
+0.9 |
39.8 |
-122.0 |
13 |
Mar-19 |
20.4 |
31.4 |
14.1 |
41.1 |
25.9 |
+1.7 |
+3.0 |
+2.3 |
236.9 |
+112.7 |
18 |
YTD |
20.7 |
31.5 |
14.1 |
41.1 |
26.1 |
+0.8 |
+1.8 |
+1.3 |
287.1 |
-143.9 |
40 |
Data copyright Ferny Grove Weather 2019, Produced 12/7/2019. 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. Data measured with low accuracy equipment, mostly replaced with professional moderate accuracy equipment from October 5 2018 except for daily rainfall which is measured using non-professional equipment with 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 usually 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 the automatic record became the official record instead, simplifying this process. Until replaced on 5 October 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.
The Fraction of monthly average expresses how much has fallen in respect to the long term average listed as a percentage.