Greater Melbourne in August 2017: Mild temperatures, average rainfall

Temperatures across Melbourne were generally near average throughout August with a cold day on the 3rd and a spell of mild days and nights occurring during the second week of the month. Rainfall was near average for most locations across the city.

This summary includes data from observing sites in or near the Greater Melbourne “Greater Capital City Statistical Area” (GCCSA) – see the notes.

Near average rainfall during August

  • Most locations across Melbourne recorded near average rainfall for August
  • Cold frontal systems and southerly airstreams delivered most rainfall, with heaviest falls on the 19th and 24th

A mix of warm and cool days, generally mild nights

  • Temperatures were near average for most of August, although there was a cool start and a warmer period leading up to the middle of the month. The month finished with cooler days and nights
  • The passage of a cold front at the beginning of the month saw Bundoora (Latrobe University) report its coldest August day since observations began there in 1979
  • For the month as a whole, days were cooler than average at most locations, and nights were generally near average, mild or somewhat cooler than average
  • The August mean minimum temp at Melbourne (Olympic Park) was 7.4 °C; this is the coolest August nights since the site opened in 2013, and the coolest since 7.3 °C was recorded at the La Trobe Street site in 2008

Melbourne (Olympic Park)

  • Total rainfall for Melbourne (Olympic Park) was 53.8 mm
  • The mean daily maximum temperature for Melbourne (Olympic Park) was 14.8 °C. The warmest day was 20.1 °C on the 14th, and the coolest day was on the 3rd when the temperature only reached 9.0 °C
  • The mean daily minimum temperature for Melbourne (Olympic Park) was 7.4 °C. The coldest morning was 3.1 °C on the 3rd, and the warmest morning was on the 14th when the minimum temperature was 12.3 °C

Snow to low levels

  • A cold front moved through Victoria overnight on the 26th and morning of the 27th, bringing rainfall to most districts. Snow flurries were reported to low levels (around 250 to 350 m) in the Dandenong Ranges, at Kilmore Gap, and at Arthurs Seat on the Mornington Peninsula

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Extremes in August 2017
Hottest day 21.3 °C at Laverton RAAF on the 14th
Warmest days on average 14.8 °C at Melbourne (Olympic Park)
Coolest days on average 10.2 °C at Ferny Creek
Coldest day 5.9 °C at Wallan (Kilmore Gap) on the 27th
Coldest night -2.5 °C at Coldstream on the 31st
Coolest nights on average 3.9 °C at Wallan (Kilmore Gap)
Warmest nights on average 7.8 °C at Frankston AWS
Warmest night 12.3 °C at Bundoora (Latrobe University) on the 14th
12.3 °C at Melbourne (Olympic Park) on the 14th
Warmest on average overall 11.1 °C at Melbourne (Olympic Park)
Coolest on average overall 7.1 °C at Wallan (Kilmore Gap)
Wettest overall 199.0 mm at Warburton (O'Shannassy Reservoir (Quarte
Wettest day 53.4 mm at Warburton (O'Shannassy Reservoir (Quarte on the 16th
Strongest wind gust 98 km/h at Melbourne Airport on the 10th

Record lowest August daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
August
Bundoora (Latrobe University) 8.5 on the 3rd 8.8 on the 3rd in 1995 35 14.9



Summary statistics for August 2017
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
August
2017
Diff
from
average
Highest for
August
2017
Mean for
August
2017
Diff
from
average
Lowest for
August
2017
Total for
August
2017
Average
for
August
Rank of
August
2017
Fraction of
August
average
Bundoora (Latrobe University) 14.4 -0.5 19.9 10th 5.6 -0.6 0.4 3rd 55.2 56.5 average 98%
Cerberus 14.2 -0.5 19.4 14th 6.5 -0.1 -0.6 2nd 77.6 75.2 average 103%
Coldstream 14.0 -0.8 19.5 10th 4.0 -0.4 -2.5 31st 69.4 69.1 average 100%
Cranbourne Botanic Gardens 14.3 -0.3 20.2 14th 6.1 -0.4 1.3 28th 77.4 80.8 average 96%
Essendon Airport 14.5 +0.1 19.0 14th 6.1 +0.4 0.8 3rd 43.2 48.1 average 90%
Ferny Creek 10.2   15.8 14th 4.7   1.3 28th 119.8
Frankston AWS 12.9 -0.8 18.2 10th 7.8 -0.6 4.2 20th
Laverton RAAF 14.6 -0.3 21.3 14th 5.4 -0.2 -0.1 3rd 49.2 44.1 average 112%
Melbourne (Olympic Park) 14.8   20.1 14th 7.4   3.1 3rd 53.8
Melbourne Airport 14.2 -0.2 19.8 14th 5.4 -0.5 0.8 31st 38.6 44.2 average 87%
Moorabbin Airport 14.5 -0.4 20.3 14th 6.6 -0.3 0.6 3rd 61.0 65.1 average 94%
Scoresby Research Institute 14.2 0.0 20.0 14th 5.5 -0.9 -0.5 31st 90.4 80.0 average 113%
Viewbank 14.5 -0.6 20.0 14th 5.6 -0.8 -0.4 3rd 60.2 54.9 average 110%
Wallan (Kilmore Gap) 10.3 -0.3 13.7 22nd 3.9 -0.4 0.9 27th 78.2 62.1 high 126%

Daily maximum temperatures for August 2017
12345678910111213141516171819202122232425262728293031
Bundoora (Latrobe University)15.512.08.511.514.012.712.015.215.919.916.017.518.319.316.217.811.911.612.812.817.017.813.414.914.510.411.912.813.5
Cerberus13.513.210.611.213.812.112.012.716.819.315.815.918.119.416.415.414.711.211.912.510.816.317.213.314.314.611.312.013.714.314.6
Coldstream15.011.58.110.613.311.810.713.715.519.516.416.017.618.916.316.914.711.810.513.611.616.416.713.914.914.011.211.412.813.516.4
Cranbourne Botanic Gardens14.510.011.813.912.710.612.516.418.515.616.617.920.216.215.814.511.212.313.516.417.213.014.715.810.811.113.213.314.3
Essendon Airport14.912.68.411.713.912.512.614.816.317.616.617.218.419.016.817.715.312.411.813.112.517.417.913.714.215.110.111.813.013.615.2
Ferny Creek11.410.79.96.38.47.76.010.111.913.711.211.213.915.812.812.410.36.87.87.98.513.311.79.410.99.87.17.68.99.711.7
Frankston AWS12.711.610.511.312.911.510.611.915.018.213.313.615.517.215.913.812.910.412.110.711.213.413.512.212.612.810.710.811.613.814.8
Laverton RAAF14.111.58.212.514.012.612.814.717.418.916.117.819.621.317.817.415.712.212.012.912.716.118.313.613.914.210.811.513.013.814.0
Melbourne (Olympic Park)15.512.99.012.114.213.012.315.016.818.816.417.918.720.117.518.115.612.211.813.312.716.818.113.315.015.310.711.812.913.816.7
Melbourne Airport14.712.58.311.813.712.012.114.815.918.116.217.918.019.816.617.615.711.711.012.912.417.017.513.513.714.89.511.713.012.414.3
Moorabbin Airport14.213.19.311.613.812.311.614.017.419.316.916.818.220.318.216.315.512.011.712.512.016.017.813.714.714.610.812.013.714.515.2
Scoresby Research Institute15.114.19.510.913.312.111.313.615.918.015.816.218.220.016.616.814.712.011.413.411.316.516.013.315.314.311.011.112.813.715.2
Viewbank15.712.78.111.313.712.312.114.815.918.616.517.317.920.016.517.515.812.411.613.111.216.617.514.115.915.410.512.012.114.116.3
Wallan (Kilmore Gap)11.312.17.46.28.77.48.812.19.712.912.212.813.113.712.012.812.07.87.79.37.613.713.310.011.010.85.97.19.09.1
Values are the maximum temperature, usually in the 24 hours from 9 am on the day indicated,
and typically occurred in the afternoon of that day.
Temperatures coloured according to their difference
from the long-term average for the period
-10.0 -9.0 -8.0 -7.0 -6.0 -5.0 -4.0 -3.0 -2.0 -1.0 0.0 +1.0 +2.0 +3.0 +4.0 +5.0 +6.0 +7.0 +8.0 +9.0 +10.0 °C Grey outline marks highest
and lowest for the period

Daily minimum temperatures for August 2017
12345678910111213141516171819202122232425262728293031
Bundoora (Latrobe University)0.52.20.42.77.78.66.74.57.712.07.48.87.612.36.910.06.24.82.94.34.56.72.64.08.34.93.54.03.50.5
Cerberus1.2-0.6-0.15.48.79.17.26.98.711.310.110.77.211.56.110.810.67.46.02.82.05.57.74.64.510.46.85.14.27.41.5
Coldstream0.3-1.3-1.11.27.78.56.62.55.311.17.69.03.411.43.011.18.67.53.6-0.62.1-0.52.43.11.77.13.4-1.70.52.7-2.5
Cranbourne Botanic Gardens2.71.72.24.87.48.36.45.87.810.69.39.47.210.96.79.210.07.03.32.54.87.25.94.97.55.71.34.26.81.7
Essendon Airport1.23.10.83.07.37.96.75.97.510.88.29.47.411.010.210.48.06.64.03.16.55.28.24.84.69.14.93.92.75.62.2
Ferny Creek4.53.04.94.64.45.43.63.95.28.96.46.56.48.49.37.55.33.62.21.53.23.37.02.53.36.02.61.32.74.23.4
Frankston AWS5.55.04.76.58.59.76.47.89.210.010.710.410.610.610.910.210.08.45.94.26.86.48.98.37.47.96.25.16.17.75.2
Laverton RAAF0.70.7-0.12.07.88.96.74.76.010.97.59.97.611.28.310.67.96.24.21.46.53.46.03.31.98.53.53.92.43.60.8
Melbourne (Olympic Park)3.53.43.14.38.89.07.77.98.911.410.310.39.412.310.412.19.38.05.95.16.85.78.35.24.99.95.85.85.47.74.0
Melbourne Airport2.60.91.03.47.27.26.04.86.110.17.19.17.910.28.69.37.55.24.01.55.94.37.34.22.78.54.32.92.74.00.8
Moorabbin Airport1.81.10.63.78.99.47.27.97.911.49.89.98.710.87.411.29.18.14.83.85.56.47.75.24.59.05.93.65.07.31.8
Scoresby Research Institute1.81.00.83.17.89.26.63.57.711.18.09.17.710.311.411.69.06.33.51.93.64.26.72.82.68.44.80.53.14.0-0.5
Viewbank1.01.5-0.41.77.89.17.24.46.010.79.49.28.211.67.310.98.67.34.31.73.62.46.64.15.17.25.32.24.23.80.8
Wallan (Kilmore Gap)4.63.43.83.64.14.53.43.83.65.75.25.75.96.46.96.35.53.31.71.82.22.54.33.02.55.00.91.02.83.82.2
Values are the minimum temperature, usually in the 24 hours to 9 am on the day indicated,
and typically occurred that morning.
Temperatures coloured according to their difference
from the long-term average for the period
-10.0 -9.0 -8.0 -7.0 -6.0 -5.0 -4.0 -3.0 -2.0 -1.0 0.0 +1.0 +2.0 +3.0 +4.0 +5.0 +6.0 +7.0 +8.0 +9.0 +10.0 °C Grey outline marks highest
and lowest for the period

Daily rainfall for August 2017
12345678910111213141516171819202122232425262728293031
Bonbeach (Carrum) - - - 7.5 - - 4.0 7.2 - - - - 6.0 - - 6.0 - 2.6 5.4 - - - - 9.0 - - - 9.0
Bullengarook East - - - 8.2 6.4 8.8 7.6 0.8 0.2 - 0.4 0.8 1.0 - 0.4 7.8 17.8 7.6 8.4 1.2 1.0 1.2 - 5.2 2.2 - 3.0 4.2 1.4 - 1.0
Bundoora (Latrobe University) - - - 7.4 0.2 0.2 1.6 0.8 - - - 3.2 0.6 - 0.2 0.4 6.6 11.4 1.0 0.4 1.0 - 8.0 0.6 - 9.2 1.0 0.4 0.2 0.8
Burnside - - - 6.0 0.2 - 2.2 2.0 - - - 1.0 1.2 - 0.2 - 1.8 2.2 7.8 - - 6.6 2.0 - 5.0 5.0 0.2 - 1.7
Cerberus - 0.2 - 6.4 1.6 0.4 6.0 4.2 4.2 - - 0.8 0.4 - 2.6 13.4 1.2 2.0 8.0 1.0 - 0.8 - 12.0 2.8 - 5.0 2.4 0.2 2.0 -
Coldstream 0.2 0.2 - 7.6 1.0 - 3.8 4.8 0.4 - - 2.6 2.0 - 0.8 2.2 4.2 6.6 11.8 1.0 0.2 1.2 0.4 7.0 - 0.2 10.0 1.0 - - 0.2
Cranbourne Botanic Gardens - - - 8.0 1.2 - 7.4 6.2 4.2 - - 3.0 1.4 0.2 2.0 4.4 0.8 1.4 7.2 0.8 0.2 - - 11.6 4.8 - 8.8 1.4 1.6 0.8 -
Essendon Airport - 0.2 - 6.6 0.2 - 0.8 2.2 - - - 1.2 0.2 - 0.2 0.2 1.4 2.2 7.8 1.4 0.6 0.6 - 6.8 1.0 - 5.8 2.4 0.2 - 1.2
Ferny Creek 0.2 - - 9.0 1.8 0.4 12.6 6.6 2.2 - - 8.4 10.0 - 1.4 4.8 3.6 7.4 7.4 1.6 0.6 1.6 - 19.2 - - 16.4 2.0 0.2 1.6 0.8
Kinglake West - - - 14.8 5.2 8.4
























Kinglake West (Wallaby Creek) 0.2 0.2 0.2 14.2 5.8 5.8 13.6




0.4 - 0.2 6.2
6.0 16.8
0.4 2.4 - 11.2 1.2
10.4 6.2


Laverton RAAF - - 0.2 6.4 0.4 - 2.4 1.0 - - - 1.0 1.4 0.2 - 1.0 1.8 3.4 8.0 2.0 1.2 0.4 0.2 6.6 0.4 - 6.6 3.6 0.2 0.4 0.4
Main Ridge - - - 6.6 - 16.6 - 21.4 - - - 5.0 - - 11.0 3.6 14.6 - - - 16.8 7.4 - - 9.2 - 6.6
Melbourne (Olympic Park) - - - 6.6 - - 4.2 2.2 - - - 2.8 2.0 - 0.2 0.8 1.8 2.8 7.2 2.0 0.6 1.6 - 9.2 0.6 - 7.8 0.6 - 0.6 0.2
Melbourne Airport - - - 6.6 - 0.4 0.8 3.2 - - - 0.4 - - - 0.2 3.6 2.6 3.0 1.6 0.4 0.8 - 5.8 0.2 - 5.8 2.0 0.4 - 0.8
Mitcham

0.2 8.2 0.8 - 8.2
0.2


6.2 - 0.6 3.6 1.4 3.6 12.6

2.0 - 12.4

13.0 4.2


Moorabbin Airport - - - 9.6 0.6 - 5.8 2.8 - - - 2.2 1.8 - 0.8 0.8 1.0 2.0 12.4 1.0 - 0.6 - 9.8 0.2 - 7.4 1.6 0.2 - 0.4
Mornington 0.4 - - 6.8 5.0 4.8 4.2 - - 1.2 1.4 6.6 - - 12.1 2.1 - 12.1 1.2 7.0 2.2

Newham (Cobaw) - - - 11.2 8.2 9.2 16.2 - - - - 3.0 1.0 - 0.6 17.0 5.2 8.0 4.0 0.4 3.2 1.4 - 4.0 0.8 - 1.8 3.8 0.6 0.4
Oakleigh (Metropolitan Golf Club) - - - 10.6 0.6 - 10.4 1.4 0.6 - - 3.2 - - 1.2 1.4 2.6 3.8 8.8 - 1.6 0.8 - 11.4 - - 10.8 1.8 - 0.8 0.4
Preston Reservoir


8.2 - - 1.2




0.2 - - 0.4 0.8 4.0 10.8
0.2 1.0 - 7.6 0.2 0.2 8.4 1.2


Rosebud (Country Club) - - - 5.0 1.0 - 9.0 8.2 6.6 - - 1.2 - - 1.2 5.2 1.2 9.0 1.2 - 0.6 - 14.2 2.0 - 7.0 7.8
Scoresby Research Institute - - - 8.0 0.8 - 7.4 4.4 0.2 - - 5.6 5.0 - 1.4 4.2 2.8 5.8 11.4 3.0 0.6 0.6 - 12.4 - 0.2 12.6 2.6 0.2 0.6 0.6
Springvale (Sandown) - - - 11.6 1.2 - 9.0 5.2 - - - 4.4 2.2 - - 3.0 1.0 4.2 10.8 - - 1.2 - 11.8 - - 8.4 2.8 0.3 1.5
Springvale Necropolis - - - 10.0 12.0 6.0 - - - 5.0 1.8 - - 5.2 13.2 - - 13.0 - 13.0


Toorourrong Reservoir (Toorourrong)

0.2 12.8 3.2 1.8 9.4





- 0.2 1.0 2.6 5.4 10.0
0.2 0.8 - 9.6 2.4
6.0 3.2


Viewbank - - - 7.8 - - 2.0 3.6 - - - 3.0 1.2 - 0.4 0.4 2.8 2.0 12.2 0.8 0.4 1.6 - 8.6 - - 11.2 1.4 - 0.6 0.2
Wallan - 0.4 - 13.8 3.6 3.4 8.8 7.8 - - - 0.6 1.0 - - 4.4 2.6 3.2 3.0 1.6 1.6 - - 6.8 1.6 - 7.8 2.0 - - 0.8
Wallan (Kilmore Gap) 0.2 0.2 - 14.4 4.6 5.8 10.8 6.0 0.2 - - 0.6 0.6 - 0.2 4.8 0.4 4.6 2.6 1.8 1.4 0.2 - 7.0 1.2 0.2 6.6 2.0 0.2 - 1.6
Warburton (O'Shannassy Reservoir (Quarte


4.6 16.6 13.2 19.0




1.0 - 2.6 53.4 12.0 17.0 16.0

2.0 0.4 12.4 6.0
22.4 0.4


Willowmavin (Avalon Station) 0.2 0.2 0.2 15.0 7.8 14.2 14.0 1.0 - - - 1.2 0.6 - 0.6 11.4 1.6 7.2 3.2 0.6 4.2 0.6 - 6.8 - 0.2 1.8 4.0 - - 0.2
Woodend - 0.2 - 8.0 8.2 11.6 11.0 0.2 - - - 3.4 4.2 - 1.6 18.8 14.0 6.6 5.8 0.8 2.4 2.6 - 5.2 2.0 0.2 3.2 7.2 1.2 0.2 1.0
Yan Yean


11.0 2.2 1.0 5.4





- 0.4 0.6 7.6 1.4 8.8

0.6 0.6 7.6 2.4
7.4 4.8


Yarra River @ Warrandyte - - - 7.6 1.0 - 3.8 2.0 0.4 - - 5.2 1.4 - 0.4 1.2 4.4 2.4 11.2 3.2 1.0 1.6 - 7.6 - 0.2 10.6 3.0 - 0.4 0.4
Most values are the precipitation in the 24 hours to 9 am on the day indicated. Days marked with → are part of a longer accumulation, which is shown on the final day.
Values over 100 mm have been rounded to the nearest whole millimetre.
Days marked with - have a rainfall report of zero; days left blank have no rainfall report (which often indicates no rain fell).
Rainfalls coloured
according to the amount
0 1.0 5.0 10.0 15.0 25.0 50.0 100 150 200 300 400 600 millimetres

Notes

The Monthly climate summary, generally published on the first working day of each month, lists the main features of the weather in Greater Melbourne using the most timely and accurate information available on the date of publication; it will generally not be updated. More extensive discussion of significant weather events, along with later information and data that has had greater opportunity for quality control, will be presented in the Monthly Weather Review.

In September 2017 this summary was broadened to include data from observing sites in or near the Greater Melbourne “Greater Capital City Statistical Area” (GCCSA). The Australian Bureau of Statistics designed the GCCSAs to “include the population within the urban area of the city, as well as people who regularly socialise, shop or work within the city, and live in small towns and rural areas surrounding the city. It is important to note that GCCSAs do not define the built up edge of the city. They provide a stable definition for these cities and are designed for the output of a range of social and economic survey data.

This statement has been prepared based on information available at 10 am on Friday 1 September 2017. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

In some situations, some or all of the rainfall is in the form of hail or snow. In these cases the totals given are for the water equivalent: the depth of liquid water that results from melting any frozen precipitation. There can be significant 'undercatch' of snow in strong winds, meaning the true precipitation can be higher than that reported.

Averages for individual sites are long-term means based on observations from all available years of record, which vary widely from site to site. They are not shown for sites with less than 10 years of record, as they cannot then be calculated reliably.
The median is sometimes more representative than the mean of long-term average rain.

The Rank indicates how rainfall this time compares with the climate record for the site, based on the decile ranking (very low rainfall is in decile 1, low in decile 2 or 3, average in decile 4 to 7, high in decile 8 or 9 and very high is in decile 10).
The Fraction of average shows how much rain has fallen this time as a percentage of the long-term mean.

Where temperature area averages are mentioned, they are derived from the ACORN-SAT dataset.

Further information

Media
(03) 9669 4057
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