Night and day temperatures were cooler than normal at Ferny Grove. Most official sites in the Brisbane area measured near normal mean overnight temperatures, while daytime temperatures were below average at most sites. Rainfall was near average at Ferny Grove and this was the case for many of the official sites. Air pressure was above average, mean relative humidity was above average, mean minimum relative humidity was close to average, mean maximum relative humidity was well above average, wind speed was below average and there were 6 thunderstorms.

 

Temperature – slightly below overall temperatures and nights and cool days

Monthly Mean Minimum Temperature: 11.3 ºC, 0.6 ºC below average and 0.4 ºC lower than same month in 2017. This is the fourth lowest on record and the lowest since 11.2 ºC in 2015. Most official stations measured close to average mean minimum temperatures. However three sites measured above average mean minimum temperatures, namely Beaudesert at 0.6 ºC above average with 10.5 ºC, Archerfield was 11.3 ºC which was 0.7 ºC above average and Cape Moreton was the highest above average and the highest mean minimum temperature of 0.9 ºC above average at 16.9 ºC. The other sites measuring close to average mean temperatures ranged between 0.7 ºC below average for Beerburrum and 0.3 ºC above average at Logan City Treatment Plant with a temperature of 12.8 ºC. The lowest mean minimum was at Gatton of 9 ºC (0.5 ºC below average). Brisbane measured a mean maximum temperature that was 0.1 ºC above average at 13.9 ºC.

 

Monthly Mean Maximum Temperature: 25.4 ºC, 0.8 ºC below average and 3 ºC lower than same month in 2017. This is fourth highest on record and the lowest since 25 C in 2016. Most official sites measured below average mean maximum temperatures of between 1.1 C below average at Logan City Treatment Plant (24.1 C) and 0.8 C below average at Beerburrum (25.2 C), Brisbane (24.9 C) and Brisbane Airport (23.4 C). Some of the official sites measured close to average mean maximum temperatures being 0.2 C above average at Archerfield with a temperature of 25.5 C, Beaudesert at 0.2 C below average (25.9 C) and Point Lookout 0.1 C below average. Some of the inland sites measured above average mean maximum temperatures with Amberley recording 27 C which was 1.4 C above average and Gatton was 1.2 C above average with the mean being 26.8 C.

 

Mean Monthly Temperature: 18.4 ºC, 0.7 ºC below average and 1.7 ºC lower than same month in 2017. This is the fourth lowest on record and the lowest since the record low of 17.7 C in 2015.

 

Lowest Temperature: 7.2 ºC at 6:40 AM on 2 September 2018. Same month in 2017 was 4.6 ºC. This is the fourth highest monthly minimum temperature for September, the highest since 8.9 ºC on 4 September 2016, the twelfth lowest daily September minimum temperature and the lowest since 4.6 C on 15 September 2017 at 6:08 AM. Official stations in the Brisbane area recorded the lowest temperature on the 2nd, 4th and 10th at many sites and some sites on the 11th, 18th and 22nd. The lowest was 4.1 C at Gatton on the 10th and the highest was 13.4 C at Point Lookout on the 4th. The lowest minimum temperature at Brisbane was 12.1 C on the 11th. In the Brisbane area nights were generally cooler than normal for the first three weeks of the month and warm at the end of the month.

 

Highest Temperature: 31.2 ºC at 1:47 PM on 29 September 2018. Same month in 2017 was 36.6 ºC. This is the fourth highest monthly maximum temperature for September, the lowest since 28.5 C in 2016 on the 28 September at 1:30 PM and equal fourteenth highest daily maximum temperature for September on record being the highest since 34.3 C on 30 September 2017 at 2:06 PM. Official stations in the Brisbane area measured the highest temperature for the month on the 20th and 29th and at some sites on the 1st, 14th and 15th at some sites. The lowest was 24.8 C at Cape Moreton on the 20th and the highest was 32.4 C at Amberley on the 15th. The highest temperature in Brisbane was 28.9 C on the 29th. For the official sites days were warmer than normal in the third week of the month and part of the months’ end. Wet weather and southeasterly winds brought cooler than normal days in the first and last week of the month.

 

Lowest Maximum Temperature: 19.7 ºC at 8:59 AM on 30 September 2018. This is the equal second lowest monthly September lowest maximum temperature, equal second lowest September daily maximum temperature on record and the equal to 19.7ºC on 17 September 2015 at 2:56 PM. This month last year was 24.2 ºC. Official stations in the Brisbane area measured the coolest day at most sites on the 3rd and at some sites on the 4th, 5th, 25th and 29th. These ranged between 18.7 ºC at Point Lookout on the 3rd and 21.6 ºC at Amberley on the 3rd. Brisbane’s lowest maximum temperature was 20.6 ºC on the 3rd. Cool days of less than 20 C was observed at many of the official sites on the 3rd to 6th, 25th, 27th and 30th.

 

Highest Minimum Temperature: 17.1 ºC at 2:28 AM on 30 September 2018. This is the fifth highest monthly minimum temperature, the highest monthly and daily minimum temperature for September since 16 C on 17 September 2015 at 9:52 PM and equal tenth highest daily minimum temperature. This month last year was 17.5 ºC.

 

Monthly Mean Minimum Grass Temperature: 10 ºC (0.4 ºC higher than same month in 2017)

 

Lowest Minimum Grass Temperature: 6 ºC on 2 September 2018 (3ºC higher than same month in 2017). This was with an air temperature of 7.2 ºC.

 

Highest Minimum Grass Temperature: 15.8 ºC on 30 September 2018 (0.4 ºC higher than same month in 2017). This coincided with the highest minimum of 17.1 C for the month.

 

Minimum temperatures were mostly below average over the first 20 days of the month and generally above average for the rest of the month. The 1st was 1 C above average, cooling to 5 C below average on the 2nd, before easing to 3 C below average on the 3rd and to 2 C below average on the 4th and 5th. The 6th was 1 C below average, while the 7th was 2 C below average before warming to 4 C above average on the 8th. The 9th was 2 C below average, the 10th and 11th was 3 C below average and the 12th and 13th was 2 C below average. On the 14th and 15th it was 1 C below average, before warming to 1 C above average on the 16th. The 17th was 1 C below average, the 18th was 2 C below average and the 19th was 1 C below average. It was 1 C above average on the 20th, cooling to 2 C below average on the 21st and warming to 2 C above average on the 22nd. The 23rd and 24th was 1 C below average before warm nights for the rest of the month. The 25th was 2 C above average on the 25th, 1 C above average on the 26th, on average on the 27th. On the 28th it was 2 C above average, 1 C above average on the 29th and 5 C above average on the 30th and the warmest minimum for the month.

 

Maximum temperatures were cooler than normal over many days, particularly the first half of the month. There were a few warm days, mostly over the second half of the month. The 1st and 2nd was 1 C above average, cooling to 6 C below average on the 3rd and 5 C below average on the 4th and 5th. The 6th was 3 C below average, the 7th was 1 C below average and the 8th was 1 C below average. The 9th was 1 C above average, on average on the 10th and 1 C below average on the 11th and 12th. The 13th and 14th was 1 C above average, warming to 3 C above average on the 15th and 16th. The 17th and 18th was 2 C below average, returning to close to average on the 19th and rising to 5 C above average on the 20th. The 21st and 22nd was 1 C below average, 1 C above average on the 23rd and on average on the 24th. The 25th was 5 C below average, then 1 C below average on the 26th and 27th and 2 C above average on the 28th. The 29th was 5 C above average and the hottest day of the month while the 30th was the coolest day of the month being 6 C below average.

 

Heatwave conditions: Nil (Out of heatwave season).

 

Air pressure – above average air pressure

Monthly Mean Minimum Pressure: 1016.7 hPa (2.6 hPa higher than same month last year). This is the second highest on record and highest since the current record of 1017.2 hPa in 2015.

 

Monthly Mean Maximum Pressure: 1022.4 hPa (2.2 hPa higher than same month last year). This is the second highest on record and the highest since 1022.9 hPa in 2015.

 

Monthly Mean Pressure: 1019.5 hPa (2 hPa above average, 0.3 hPa lower than same month last year). This is the second highest on record and highest since 1020.1 hPa in 2015.

 

Lowest Pressure: 1008.9 hPa on 1 September 2018 at 3:44 PM. The same month last year saw 1007.3 hPa. This is the highest monthly minimum September pressure on record, exceeding the old record of 1008 hPa on 3 September 2015 at 2:28 PM and the equal thirteenth lowest daily September air pressure on record.

 

Highest Pressure: 1028.5 hPa on 22 September 2018 at 7:46 AM. The same month last year saw 1027.7 hPa. This is the fifth highest and lowest monthly September maximum pressure and the highest since 1029.4 hPa on 6 September 2016 at 9:05 AM. This is the equal eleventh highest daily air pressure for September and the highest since 1029 hPa on 7 September 2016 at 9:05 AM.

Note: Air pressure measurements previously have been previously incorrect and are being closely monitored to maintain its accuracy as much as possible. Over the month of September, a difference of 0.23 hPa lower than the official BoM Brisbane site – No. 040913 was observed which is deemed acceptable but on the higher end of the acceptable range.

 

Relative Humidity – above average mean humidity, mean maximum humidity and mean minimum humidity

Monthly Mean Minimum Humidity: 47.9 % (11.6 % higher than same month last year and 4.2% above average). This is the third highest on record and the highest since 49.2% in 2015.

 

Monthly Mean Maximum Humidity: 92.6 % (11.3 % higher than same month last year and 1.8 % above average). This is third highest on record and is the highest since 94.9 % in 2011.

 

Monthly Mean Humidity: 70.3 % (11.5 % higher than same month last year and 2.9 % above average). This is the second highest on record with the current record being 74.7 % in 2010.

 

Lowest Humidity: 25% on 20 September 2018 at 12:37 PM (5% higher than this month last year). This is the equal fourth highest monthly September minimum humidity on record, the highest since 27% on 30 September 2016 at 4:31 PM, equal eighth lowest daily September minimum humidity and the equal lowest since 25% on 30 September 2017 at 3:27 PM.

 

Highest Humidity: 98% on 5th, 8th, 9th, 27th and 29th and 30th September 2018 at 4:28 AM on the 30th, (2% higher than this month last year). This is the second highest monthly September high humidity and the highest since 99% on 22 September 2016 at 1:14 AM. This previously occurred 13 times.

 

Dew point – above average mean, close to average mean minimum and well above average mean maximum dew point

Monthly mean minimum dew point: 9.8 ºC (0.4 ºC below average)

 

Monthly mean maximum dew point: 15.1ºC (1.7 ºC above average)

 

Monthly mean dew point: 12.4 ºC (0.6 ºC above average)

 

Lowest dew point: 5.5 ºC on 2 September 2018 at 6:12 AM

 

Highest dew point: 19.1 ºC on 29 August 2018 at 3:51 PM

 

Wind Speed – below average wind speed

Maximum Wind Gust: 68.7 km/hr on 19 September 2018 at 4:48 PM. This is the second highest September maximum wind gust and the current record being 70 km/hr on 19 September 2016 at 7:43 AM. The maximum wind gust this month last year was 66 km/hr.

 

Maximum Wind Speed: 45.7 km/hr on 8 September 2018 at 7:38 AM (Strong force Wind).

 

Wind Run: 1319.9 km (673.9 km less than same month last year) and is the second lowest for September on record and the lowest since 1053.6 km in 2012.

 

Monthly Mean Wind Speed: 1.8 km/hr (0.8 km lower than this month last year). This is the second lowest on record and the lowest since 1.5 km/hr in 2012.

 

Daily Mean Maximum Wind Speed: 19.1 km/hr

 

Dominant Direction: SSE (WNW this month last year). Use with caution. This is due to equipment failure since December 24 2017 with three hourly readings used from December 25 2017 (instead of at least 5 minute intervals) from backup sensor. No data available from 26th due to equipment failure, with no subsequent backup data available.

 

Rainfall – Below average rainfall

Monthly Rainfall Total: 37.9 mm (0.5 mm above average) and 101.3% of the long term average. This total is in decile 7/ 65th percentile which ranks as average and 16.3 mm above the long term median (175.3 % of long term median). This is higher than the previous year which was 1.7 mm, the highest since 66.8 mm in 2016 and is the twelfth highest on record.

 

Many of the official sites in the Brisbane area measured close to average rainfall, while some sites measuring below or above average rainfall. For the sites that measured rainfall that ranked as average, these ranged between 53% of the long term average at Brisbane with a total of 15.6 mm and Redcliffe with a total of 41.6 mm and 105% of the long term average. The sites that ranked as high recorded rain totals of 189% of the long term average at Beaudesert (68mm), Point Lookout with a total of 111 mm (192 % of the long term average) and Brisbane Airport at 126% of the long term average (42.4mm). Amberley recorded the lowest total of 9.6 mm of the official sites (29% of the long term average) while Gatton measured 38 % of the long term average with a total of 13.2mm. Both these sites ranked as low.

 

In the greater Brisbane area there were showers from the 4th that was produced by an upper level trough that combined with moist onshore winds. Some sites reported daily totals of over 10mm and up to 44 mm on the 5th. Fine weather was present between the 10th and 24th with little to no rainfall recorded over this period. From the 25th to the end of the month there were severe thunderstorms with moderate to heavy falls with a shift to southeasterly winds. Coomera Foxwell Road (Gold Coast) recording its highest September rainfall total since 1998.

 

Number of Rain Days: 9 days, 1 higher than this month last year and 3.4 days above average. This is the fourth highest on record and the highest since 13 days in 2016.

 

Highest Daily Total: 14.6 mm on 30 September 2018. This is the highest since 9.9 mm on the 25 August 2016 and the ninth lowest August daily rainfall on record. The wettest location in the Brisbane area of the official sites was 60 mm at Caloundra Airport on the 25 September 2018.

 

Monthly Rainfall Total – (automatic gauge) 24 hours to 9am: 33.1 mm (4.8 mm less than official standard gauge and within 12.7%). Highest daily total (automatic gauge, 24 hours to 9am): 11.3 mm on the 30 September 2018, (24 hours from midnight): 10.9 mm on 29 September 2018.

 

Note: This automatic gauge is developing rust on its magnet which is possibly affecting its accuracy. Based on the performance of a similar gauge with a failed switch it is expected the accuracy of this gauge will be affected and become erratic as this fault develops further and to be decommissioned from use. This gauge is being inspected ever few weeks as well as the comparison to the official standard gauge. For the month of September it meet the expected accuracy (of +/- 20% of the standard gauge) in the high end of this range (-12.7%). Therefore its recorded total is considered to be valid.

 

On the 3rd there was drizzle and light showers from the late morning clearing in the late afternoon with 2mm measured on the 4th. From the late morning on the 4th there were light showers, easing to occasional in the afternoon with light to moderate showers in the late evening. On the 5th there were light showers in the early hours with 5.2 mm measured. In the late morning there were light showers with 0.5 mm measured on the 6th. On the 8th in the early hours there was light rain at times, occasional in the early morning and clearing mid-morning. 1.3 mm was measured on the 8th. This was followed by a mid afternoon mild thunderstorm with moderate to heavy rain, followed by a light shower. On the 9th 10.8 mm was measured. On the 25th there was a mid morning light shower, brief light showers in the early to mid afternoon and in the evening, with 0.8 mm measured on 25th and 0.6 mm measured on the 26th. Brief light showers in the early to mid afternoon of the 26th, followed by an evening mild thunderstorm with light to moderate rain On the 27th with 2.1 mm was measured. Light midday shower on the 28th with no measurable rainfall. In the mid afternoon of the 29th there was a moderate thunderstorm, followed by three mild thunderstorms clearing in the early evening. On the 30th there was light rain periods from early morning with 14.6 mm measured. From the mid morning there were light to moderate rain, easing to light rain at times and clearing early afternoon.

 

There was 0 day with falls of at least 25 mm (equal to same month last year) with 3 days of less than 1mm (3 greater than same month last year). Highest rainfall rate was 80.4 mm/hr on the 8 September 2018 at 4:49 PM with the highest hourly total of 8.8 mm on the 8 September 2018 at 5:22 PM.

 

Number of severe thunderstorms: 0

 

Number of thunderstorms: 6 (Mild: 5, Moderate: 1)

 

Number of thunder days: 3 day

 

Number of nearby only storms: 0

 

Severe thunderstorms in the Brisbane area: The bureau reported that:

• “From late on the 26th, severe thunderstorms developed west of Nerang and moved slowly northeast over the Gold Coast, Moreton Bay and the Sunshine Coast. Hail between 2 cm and 4 cm in diameter was reported in and around Marburg, Beaudesert, Springfield and the Gold Coast. Wind gusts up to 70 km/h were recorded at Beaudesert and localised heavy rainfall was reported in excess of 40 mm in some areas”
• “Severe thunderstorms produced heavy rainfall and wind gusts to 91 km/h at Cape Moreton Lighthouse on the 30th”

 

Remarks for month:

• Sunny on 1st and 2nd; heavy dust haze on 1st
• Cold morning and dry air on 2nd
• Cloudy on 3rd to 6th, cool day on 3rd and 5th, cold on 4th with some showers
• Cloudy at times on 8th with light rain at times and winds briefly moderate to fresh in the morning
• Sunny with a cool morning on 9th and 10th
• Hazy on 12th; sunny on 13th and mostly sunny on 14th
• Dry southwesterly wind change on the 16th followed by haze and dry air into the 17th
• Sunny and hazy on the 19th
• Sunny on the 20th with a hot day with a dry change and dry air in the late morning and another in the late evening
• Cloudy on 25th and a cold day with showers
• Hot on the 29th with showers and thunderstorms
• Cold and cloudy day on the 30th with light rain at times
• 11 days of light dew: 1st to 5th, 11th to 14th, 18th and 23rd; 1 days of moderate dew: 7th and 2 days of heavy dew: 9th and 10th

Weather influences

• A trough cleared off the coast early on the 1st, while a dry and gusty west-south-westerly wind change extended a dry change with dust haze

• On the 2nd, a high pressure system extended onshore flow along the coast
• The onshore flow increased on the 3rd, and in combination with a coastal trough brought showers
• An upper trough shifted north towards Queensland on the 3rd and this trough combined with moist onshore flow to bring some showers as the high pressure system slowly shifts eastwards.
• On the 5th the high pressure system maintained the onshore flow as with the upper trough weakened and the coastal trough contracting northwards.
• On the 6th and 7th the high pressure system shifted further east across the Tasman Sea with the ridge decaying further
• The ridge cleared as the high pressure system moved further east with a trough shifting east and clearing with some shower and thunderstorm activity
• On the 9th a high pressure system moving east over NSW extended a dry air mass and into the 10th as the system remains slow moving.
• On the 11th and 12th, the high pressure system shifted eastwards extending settled weather and a weak pressure gradient
• On the 13th and 14th a weak ridge persisted as the high pressure system slowly shifts east across the Tasman Sea, while a weak trough shifted eastwards
• The weak ridge persisted on the 15th as a trough shifted east and extended warm northerly winds to its east
• On the 16th the trough cleared allowing a dry change to move thorough
• On the 17th a high pressure system shifted eastwards and into the Tasman Sea extending a ridge along the coast
• The ridge contracted northwards on the 18th and 19th with lighter winds
• On the 20th a trough shifted eastwards brining hot and dry air, allowing a ridge to develop and extend a dry air mass
• On the 21st a high pressure system shifted eastwards and extended a moist onshore flow
• The high pressure system shifted further east on the 22nd and 23rd and maintained a weakening ridge
• A new high pressure system shifted east on the 24th and extended onshore flow which was aided by a upper trough as the high pressure system clears away in the Tasman Sea
• The onshore flow remained on the 25th along with the upper trough with some showers, cloudy and cool conditions
• On the 26th the onshore flow persisted while weakening and combined with a upper trough to bring some showers
• The ridge decayed further on the 27th, while a weak upper trough shifted across the region
• On the 28th the ridge decayed further with a weak pressure gradient, with a trough over the interior brining some shower activity
• On the 29th a upper and surface trough shifted east and this produced showers and thunderstorms and with warm air ahead of the trough
• The 30th saw a coastal trough shift northwards along the coast. An upper trough shifted east and off the coast late in the day. This extended a cloud band with patchy rain, showers and isolated storms with a cloudy and cool day.

Daily weather notes

• 1/9/18: Fine and sunny. A dry W to SW change in the early morning with light to moderate winds during the morning easing to light from the afternoon. Heavy dust haze from the early morning, slowly improving during the day.
• 2/9/18: A cold morning and a fine and sunny day. Light to moderate S to SSW winds easing to light and tending SE to ENE in the afternoon and evening. Below average dew point and relative humidity before returning to normal in the afternoon.
• 3/9/18: Fine until drizzle and light showers from the late morning clearing in the late afternoon. A cloudy day with ns and sc clouds easing slightly late in the afternoon and a cool day. The maximum temperature was reached in the late morning before the temperature generally fell for the rest of the day. High relative humidity from the late afternoon. Light to moderate SSW to SSE winds
• 4/9/18: Increasing cloud of cu and sc from the morning after a cold morning. Light showers from the late morning easing to occasional in afternoon. Light to moderate showers in the late evening. A cold day. Highly variable temperature during the day due to variable cloud cover and showers. High relative humidity later in the afternoon and in the evening. Light S to SSE winds increasing to moderate in the afternoon.
• 5/9/18: Light showers in the early hours clearing. Late morning to midday light showers. Cool and cloudy day. Partly cloudy early in the day increasing in the morning with sc and cu clouds. High relative humidity during the day. Light SSW to SE winds.
• 6/9/18: Fine. Cloudy early with sc, cu and sc clouds becoming partly cloudy with cu and sc from the late morning. High relative humidity in the afternoon and evening. Light S to SW winds and NNW to NNE in the afternoon and evening.
• 7/9/18: Fine and partly cloudy with cu clouds. Moderately high dew point and relative humidity from the mid morning. Light S to SW winds early becoming light to moderate NNW to NNE from the late morning and easing to light in the evening.
• 8/9/18: Light rain at times in the early hours, becoming occasional in the early morning before clearing mid-morning. Midday light to moderate brief shower followed by a late afternoon mild thunderstorm with moderate to heavy rainfall and a light shower. Cloudy at times with cu clouds and otherwise partly cloudy. High dew point especially from the late morning and high relative humidity. Light NNW to ENE winds and briefly moderate to fresh in the morning.
• 9/9/18: Sunny without clouds and fine. A cool morning. Low relative humidity in the late morning and afternoon. Light to moderate S to SW winds, becoming light N to NNE in the evening. Heavy morning dew.
• 10/9/18: Sunny and cloud free day. Fine weather. A cool morning. Light SW early becoming SW to NE in the afternoon and then W in the evening.
• 11/9/18: Fine and sunny before some cu clouds in the afternoon. A cool morning. Light W to SSW winds early tending S to SSE from the middle of the day.
• 12/9/18: Fine and partly cloudy with cu clouds. A hazy day. The temperature was variable during the day due to partly cloudy conditions. Light SSW winds early becoming NNE to SE winds from later in the morning.
• 13/9/18: Fine. Sunny and became partly cloudy with some cu clouds in the afternoon. Light SSW winds becoming NE to SE from the late morning, light to moderate in the afternoon and NNW in the evening.
• 14/9/18: Mostly sunny with some cu clouds from the morning. Light NNW winds early, SSE to ESE from the morning and NNW to NE in the evening.
• 15/9/18: Fine and sunny. Light NNW winds early becoming NNW to NNE from the morning. High dew point from the afternoon.
• 16/9/18: Fine and sunny. Became partly cloudy from the mid morning with ac, cc, sc and some cu clouds before easing from the middle of the day. A dry south-westerly change in the late morning followed by haze. Light NNW to SSW winds before SW to SE winds from the late morning and S to ESE winds from the afternoon. Low dew point and relative humidity recovering quickly in the afternoon.
• 17/9/18: Fine and partly cloudy with sc and ac in the morning and followed by cu from the morning. Light SW to SSW winds S to SSE from the middle of the day. Low dew point in the morning before recovering in the middle of the day.
• 18/9/18: Fine and partly cloudy with cu clouds developing from the morning. Variable temperature during the day due to the cloud cover. Moderately low dew point early in the day returning to normal later in the morning. Light SW winds becoming E to SE later in the morning and in the afternoon before light NNE to NNW from the late afternoon.
• 19/9/18: Fine, sunny and cloud free day. Hazy. Light W to NNW winds and N to NNW from the afternoon. Moderately above average dew point in the afternoon and evening.
• 20/9/18: Fine and sunny with extensive ac clouds developing during the morning and easing in the afternoon. A hot day. A dry change in the late morning with low humidity and dew point in the morning. The humidity increased in the middle of the day with the SE winds, with the temperature falling with the change as a result. Light winds mostly SW to W winds becoming S to SE in the afternoon and evening. Another dry change with a small drop in humidity in the late evening.
• 21/9/18: Fine and partly cloudy with cu developing from the morning. Light to moderate S to WSW winds becoming ESE to SSE from the mid morning and winds easing to light from the late morning.
• 22/9/18: Fine. Clear early becoming partly cloudy with cu clouds from the mid morning. Moderately low dew point early in the day before returning to normal during the morning. Light SSW to SW winds early becoming light to moderate ESE to SSE from the mid morning becoming light NNW to NE from the afternoon.
• 23/9/18: Fine. Clear early becoming partly cloudy with cu developing from the morning before easing in the afternoon. Light WNW to N winds becoming light to moderate E to NNE in afternoon and evening.
• 24/9/18: Fine. Became partly cloudy with cu during the morning and cloudy periods in the afternoon. Variable temperature from the late morning due to the changing cloud cover. Light to moderate SSE to NNE winds becoming light S to ESE in the evening.
• 25/9/18: Mid morning light shower, followed by brief light showers in the early to mid afternoon and again in the evening. Cloudy with cu and sc all day. A cold day. Light ESE to SSW winds early becoming ESE to SE from the mid morning. Moderately high day-time relative humidity.
• 26/9/18: Brief light showers in the early to mid afternoon. Evening mild thunderstorm with light to moderate rainfall. Partly cloudy with cu clouds. Winds of light strength. Moderately high dew point from mid morning to mid afternoon.
• 27/9/18: Fine and partly cloudy. Early sc and ac early becoming cu from the morning and cloud cover heavy at times. Winds of light strength. Moderately high dew point from the late morning easing in the evening.
• 28/9/18: Fine except for a light midday shower. Partly cloudy with cu clouds. High dew point from the late morning easing from the late afternoon. Moderately high day-time relative humidity. Winds of light strength.
• 29/9/18: Moderate thunderstorm in the mid afternoon with some heavy rainfall, followed by three brief mild thunderstorms for the remainder of the afternoon. Partly cloudy day with cu clouds before ci and cb developing in the afternoon. A hot day. Moderately high dew point from mid morning. Winds of light strength.
• 30/9/18: Light rain periods from early morning, light to moderate falls from mid morning and easing to light rain at times during the middle of the day. The rain cleared in the early afternoon. A cold and cloudy day with ns before clearing later in the afternoon with some cu late in the day. Very stable temperature falling during much of the day-light hours of the day. Winds of light strength. High relative humidity over the entire day.

Station records for September 2018

NOTE: Most of these records are from the official station record of this site. Some may be derived from the automatic record. See end notes for more information.

 

Other records for September 2018

NOTE: These records are from automatic data record for this site. See end notes for more information.