Nights were warmer than normal and days cooler than normal with the mean maximum temperature for the month the lowest since 2011. Rainfall was well above average, the second highest and highest in 8 years. Mean relative humidity was below average, dew point was above average and mean air pressure was near average. There were 9 thunderstorms (8 thunder days).
Mean minimum temperature: 15.4 ºC, 1.1 ºC above average and 2 ºC lower than same month in 2017.
Mean maximum temperature: 26.6 ºC, 0.9 ºC below average and 0.4 ºC lower than same month in 2017. This is second lowest on record and the lowest since the current record low 25.4 ºC in 2010 and 2011.
Mean temperature: 21 ºC, 0.1 ºC above average and 1.2 ºC lower than same month in 2017.
Lowest temperature: 9.1 ºC at 6:06 AM on 1 October 2018. Same month in 2017 was 10.9 ºC.
Highest temperature: 34.6 ºC at 3:53 PM on 26 October 2018. Same month in 2017 was 33.3 ºC.
Lowest maximum temperature: 18.6 ºC at 8:55 AM on 13 October 2018. This is the equal second lowest monthly and daily October lowest maximum temperature, equalling 18.6 ºC in 2010 on 11 October at 3:42 PM. This month last year was 18.9 ºC.
Highest minimum temperature: 18.7 ºC at 8:55 AM on 13 October 2018. This is the lowest monthly October highest minimum temperature since 18.6 ºC in 2011 on 26th and 31th (at 5:28 AM). This month last year was 21.9 ºC.
October minimum temperatures were above average for the most of the month except for some cool nights at the start of the month. The 1st was 5 ºC below average, the 2nd and 3rd was 4 ºC below average, before close to average temperature until the 10th. The 11th saw 3 ºC above average and 2 ºC above average on the 14th. The 15th was 3 ºC above average, warming to 5 ºC above average on the 16th, easing to 4 ºC above average on the 17th and 18th. The 19th was 3 ºC above average, the 20th 2 ºC above average and the 21st 4 ºC above average. It then temporarily eased to on average on the 22nd before warming to 3 ºC above average on the 23rd and 24th, 4 ºC above average on the 25th and 2 ºC above average on the 26th. The 27th was 4 ºC above average, 3 ºC above average on the 28th, 4 ºC above average on the 29th and then close to average on the 30th.
October maximum temperatures were predominately close to or below average especially in the first half of the month. There were warm days over much of the second half of the month. The 1st and 2nd was 2 ºC below average, the 3rd was 3 ºC below average, while the 6th was 6 ºC below average and 4 ºC below average on the 7th. The 10th was 3 ºC above average, then cooler on the 11th being 4 ºC below average, 8 ºC below average on the 12th and 9 ºC below average on the 13th and 14th. The 15th was 7 ºC below average, easing to 2 ºC below average on the 16th and 1 ºC below average on the 17th. It was 4 ºC below average on the 18th, then near average until the 21st. It warmed to 2 ºC above average on the 22nd and 23rd, 6 ºC above average on the 24th. The 26th was 7 ºC above average, 3 ºC above average on the 28th before cooling to 6 ºC below average on the 29th.
Mean minimum grass temperature: 14.5 ºC (1.4 ºC lower than same month in 2017).
Lowest Minimum Grass Temperature: 8.9 ºC on 1 October 2018 (3ºC higher than same month in 2017). This was with the lowest air temperature for the month of 9.3 ºC.
Highest Minimum Grass Temperature: 17.9 ºC on 16 October 2018 (2.9 ºC lower than same month in 2017). This was with a minimum air temperature of 18.5 ºC for the month.
Mean minimum MSL pressure: 1014.8 hPa (1.3 hPa higher than same month last year).
Mean maximum MSL pressure: 1019.7 hPa (1.2 hPa higher than same month last year).
Mean MSL pressure: 1017.3 hPa (0.6 hPa above average, 1.1 hPa higher than same month last year).
Lowest MSL pressure: 1007.9 hPa on 26 October 2018 at 3:43 PM. The same month last year saw 1003.7 hPa. This is the highest monthly minimum October pressure on record, exceeding the old record of 1007 hPa on 13 October 2009.
Highest MSL pressure: 1027.9 hPa on 1 and 2 October 2018 at 8:25 AM on the 2nd. The same month last year saw 1026.5 hPa.
Mean minimum relative humidity: 54.3 % (5.4 % lower than same month last year and 7.8% above average). This is the second highest and the highest since the record high of 58% in 2010.
Mean maximum relative humidity: 72.5 % (21.8 % lower than same month last year and 16.7 % below average). This is lowest on record exceeding the old record of 77.2% in 2009.
Mean relative humidity: 63 % (13.6 % lower than same month last year and 4.9 % below average).
Lowest relative humidity: % on 26 October 2018 at 4:16 PM (4% lower than this month last year). This is the equal second highest monthly October minimum humidity on record, the lowest since 25% on 6 October 2016 at 2:55 PM.
Highest relative humidity: 98% on 1 October 2018 at 6:44 AM, (2% lower than this month last year). This is the equal second highest monthly October high humidity and the lowest since 94% on 3 October 2016 at 5:39 PM.
Monthly mean minimum dew point: 13.6 ºC (1.8 ºC above average)
Monthly mean maximum dew point: 18.3 ºC (1.9 ºC above average)
Monthly mean dew point: 16 ºC (1.9 ºC above average)
Lowest dew point: 7.4 ºC on 26 October 2018 at 4:45 PM
Highest dew point: 21.3 ºC on 10 October 2018 at 3:40 PM
Highest wind gust: 49 km/hr on 4 October 2018 at 4:16 PM. The maximum wind gust this month last year was 60 km/hr.
Highest wind speed: 25 km/hr on 21 October 2018 at 2:34 PM (Moderate force Wind).
Total wind run: 1699.3 km (302.8 km more than same month last year)
Mean wind speed: 2.3 km/hr (0.8 km lower than this month last year). This is the third lowest on record for October and the highest since 2.4 km/hr in 2016.
Daily Mean Maximum Wind Speed: 16.7 km/hr
Dominant Direction: SE (SSE this month last year). Use with caution. No data available for the first four days of the month due to equipment failure, with no subsequent backup data available. Replacement equipment provided data from the 5th October 2018.
Rainfall total: 263.7 mm, 189.6 mm above average (479.1 % of long term average), 223.4 mm above the long term median and 610.4% of the site median. This is higher than this month last year which was 218.1 mm. Automatic rain gauge was 247.1 mm (-6.2 % of manual gauge).
Highest daily rainfall total: 56.5 mm on 6 October 2018. This is the highest since 61.8 mm on the 12 October 2010 and the fourth highest October daily rainfall on record.
Number of rain days: 20 days, 8 higher than this month last year and 12.4 days above average. This is the second highest on record whilst the record high is 22 days in 2017.
Highest rain fall rate: 261.8 mm/hr on the 21 October 2018 at 2:31 PM
Highest hourly rainfall total: 30.4 mm on the 6 October 2018 at 12:55 AM.
There were 9 thunderstorms, with 8 days with thunder, along with 2 nearby thunderstorms.
At Ferny Grove in October there were regular showers, thunderstorms and period of rain with heavy falls. Thunderstorms were very regular in the second week of the month. Heavy falls were less frequent later in the month with showers and drizzle mostly, but with thunderstorm activity persisting.
Numerous cloudy days associated with the high rainfall with several cold days.
For October there were 2 existing records exceeded, along with 6 records that was highest/lowest in at least 5 years.
For more detailed analysis refer to the “Monthly Meteorological Report for October 2018”.
Summary of Averages and Extremes for October 2018 for Ferny Grove, Brisbane, Queensland, Australia |
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Min Temperature |
Max Temperature |
Min Relative Humidity |
Max Relative Humidity |
Min pressure |
Max pressure |
Max Wind Gust |
Max Wind Speed |
Daily rain |
Daily Avg. Temp |
Daily Temp Range |
Min Grass Temp |
Min Grass Temp Depression |
Average |
15.4 |
26.6 |
54.3 |
72.5 |
1014.8 |
1019.7 |
25.3 |
16.7 |
8.5 |
21.0 |
11.2 |
14.5 |
-0.9 |
Min |
9.1 |
18.6 |
27.0 |
58.0 |
1007.9 |
1014.7 |
13.2 |
6.0 |
|
16.6 |
3.7 |
8.9 |
-2.0 |
Max |
18.7 |
34.6 |
73.0 |
98.0 |
1023.3 |
1027.9 |
49.0 |
25.2 |
56.5 |
25.5 |
18.3 |
17.9 |
-0.2 |
Total |
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|
|
|
|
|
|
|
263.7 |
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|
Summary for October 2018 from long term average for Ferny Grove, Brisbane, Queensland, Australia |
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|
Temperature |
Relative Humidity |
Air Pressure |
Daily Rainfall |
Rain total |
Rain total long term average |
Fraction of monthly average (%) |
Average |
+0.1 |
-4.9 |
+0.6 |
+189.6 |
263.7 |
74.1 |
355.9 |
Min |
+1.1 |
+7.8 |
- |
|
- |
- |
- |
Max |
-0.9 |
-16.7 |
- |
+234.4 |
- |
- |
- |
Monthly averages and extremes for Year of 2018 to Date for Ferny Grove, Brisbane, Queensland, Australia |
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Temperature |
Temperature from Long Term Avg. |
Rain total |
Rain Anomaly |
Rain days |
||||||
|
Avg Min |
Avg Max |
Low Min |
High Max |
Average |
Min |
Max |
Average |
|
|
|
Jan-18 |
19.1 |
32.9 |
13.8 |
38.0 |
26.0 |
-1.7 |
+2.1 |
+0.2 |
62.4 |
-81.9 |
9 |
Feb-18 |
19.7 |
30.5 |
14.2 |
37.4 |
25.1 |
-0.5 |
+0.4 |
-0.1 |
305.3 |
+138.4 |
17 |
Mar-18 |
19.4 |
28.9 |
14.9 |
35.5 |
24.2 |
+0.7 |
+0.5 |
+0.6 |
190.3 |
+85.8 |
25 |
Apr-18 |
16.0 |
28.3 |
11.7 |
33.1 |
22.1 |
-0.1 |
+1.4 |
+0.6 |
40.1 |
-76.7 |
17 |
May-18 |
11.5 |
25.1 |
6.0 |
28.5 |
18.3 |
-0.9 |
+1.7 |
+0.4 |
47.3 |
-54.2 |
9 |
Jun-18 |
8.6 |
22.5 |
4.3 |
25.1 |
15.6 |
-1.6 |
+1.4 |
-0.1 |
25.9 |
-32.0 |
7 |
Jul-18 |
8.1 |
23.4 |
1.8 |
27.9 |
15.8 |
-0.7 |
+2.3 |
+0.8 |
20.9 |
-23.7 |
6 |
Aug-18 |
6.1 |
24.5 |
2.0 |
29.4 |
15.3 |
-2.9 |
+1.4 |
-0.7 |
17.1 |
-16.0 |
3 |
Sep-18 |
11.3 |
25.4 |
7.2 |
31.2 |
18.4 |
-0.6 |
-0.8 |
-0.7 |
37.9 |
+0.5 |
9 |
Oct-18 |
15.4 |
26.6 |
9.1 |
34.6 |
21.0 |
+1.1 |
-0.9 |
+0.1 |
263.7 |
+189.6 |
20 |
YTD |
13.5 |
26.8 |
1.8 |
38.0 |
20.2 |
-0.7 |
+0.9 |
+0.1 |
1010.9 |
+129.8 |
122 |
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 2018, Produced 14/11/19 utilising data as of 15/12/18. 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 from midnight. Daily rainfall (manual) and air temperature are measured as the 24 hours from 9am for maximum temperatures and the 24 hours to 9am for minimum temperautures. Minimum Grass Temperature is measured over an approx. 12 hour period ending in the early morning.
Automatic records in “Other Records” and listed elsewhere under 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. Until replaced from 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 were 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 daily rainfall doesn’t form the official data for the site. However the automatic record for some data and also may be used if data is not available/ not suitable.
Long term averages are based on all available long period past measurements. Long term average for Temperature, Relative Humidity and Air pressure is based on 2009 to 2014/15 average from the station record. Long term average for rainfall is based on 1987 to 2013 average from the station record.
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”.