Greater Melbourne in July 2022: below average rainfall

July rainfall was below average at most sites in Greater Melbourne. Mean maximum temperatures were mostly close to or above average. Mean minimum temperatures were below average at most reporting sites.

Below average rainfall

  • July rainfall was below average at most sites in Greater Melbourne.
  • Rainfall totals ranged from 65% of average at Ferny Creek to 108% of average at Melbourne Airport.
  • The wettest days during the month were on the 8th, 9th, 18th, 24th and between the 26th and 29th, associated with cold fronts and low pressure troughs that brought widespread rainfall.
  • The highest daily rainfall in the Melbourne metropolitan area this month was 30.0 mm at Mornington on the 26th.
  • Kinglake West (in the north-east of Greater Melbourne) was the wettest location, recording 103.0 mm for the month.

Some cold days and nights

  • For the month as a whole, mean maximum temperatures were close to or above average at most sites in Greater Melbourne, with sites generally having temperatures within 0.5 degrees from the July average.
  • Daily maximum temperatures were warm in all suburbs on the 6th, and between the 21st and 25th, due to warm northerly flow preceding approaching cold fronts.
  • In Greater Melbourne, the warmest maximum temperature for the month, 19.3 °C, was recorded at Melbourne (Olympic Park) on the 24th.
  • Mean minimum temperatures were below average at most reporting sites.
  • Averaged across all reporting sites in Greater Melbourne, the July mean minimum temperature was the lowest since 1998.
  • The coldest nights were at Scoresby Research Institute, where the mean minimum temperature was 2.1 °C below average for July.
  • Viewbank had its lowest July mean daily minimum temperature on record, while some sites had their lowest July mean daily minimum temperature since at least 1998.
  • Clear skies and light winds under a high pressure system resulted in cold mornings, particularly between the 19th and 22nd when many sites across Greater Melbourne had their coldest morning since 29 August 2018, with minimum temperatures dropping below zero in most suburbs.
  • The lowest daily minimum temperature recorded during this month was −3.8 °C at Coldstream on the 20th.
  • Melbourne city (Olympic Park) recorded minimum temperatures of 0.8 °C and 1.2 °C on the 20th and 21st respectively; this was the first time since 2017 the city saw two consecutive days with minimum temperature below 1.5 °C.

Melbourne (Olympic Park)

  • Total rainfall for Melbourne (Olympic Park) was 36.2 mm, which is 91% of the long-term average of 39.9 mm.
  • The mean daily maximum temperature for Melbourne (Olympic Park) was 14.0 °C.
  • The warmest day was 19.3 °C on the 24th, and the coolest day was on the 12th when the temperature reached 11.0 °C.
  • The mean daily minimum temperature for Melbourne (Olympic Park) was 6.2 °C.
  • The coldest morning was 0.8 °C on the 20th, and the warmest morning was on the 24th when the minimum temperature was 10.4 °C.

Hail and frost

  • Showers of small hail were reported across parts of Greater Melbourne following the passage of a cold front on the 17th.
  • Large areas of frost were observed on the 20th and 21st, when night-time temperatures plummeted due to clear skies and light winds under the high-pressure system.

Further information

Media
(03) 9669 4057

Extremes in July 2022
Hottest day 19.3 °C at Melbourne (Olympic Park) on the 24th
Warmest days on average 14.1 °C at Viewbank
Coolest days on average 9.5 °C at Wallan (Kilmore Gap)
Coldest day 6.4 °C at Wallan (Kilmore Gap) on the 11th
Coldest night -3.8 °C at Coldstream on the 20th
Coolest nights on average 2.0 °C at Coldstream
Warmest nights on average 6.2 °C at Melbourne (Olympic Park)
Warmest night 10.4 °C at Melbourne (Olympic Park) on the 24th
Warmest on average overall 10.1 °C at Melbourne (Olympic Park)
Coolest on average overall 6.7 °C at Wallan (Kilmore Gap)
Wettest overall 103.0 mm at Kinglake West
Wettest day 30.0 mm at Mornington on the 26th
Strongest wind gust 89 km/h at Fawkner Beacon on the 16th
89 km/h at South Channel Island on the 16th

Record lowest July mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
July
Viewbank 4.0 5.1 in 2010 22 6.0

Lowest July mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
lower
Average for
July
Scoresby Research Institute 3.8 3.7 in 1982* 5.9
Coldstream 2.0 1.9 in 1997 4.0
Melbourne Airport 4.4 4.1 in 1997 5.5
Moorabbin Airport 4.9 4.5 in 1998 6.2
Essendon Airport 5.0 4.9 in 1968* 5.5

* note: there are gaps in the historical record at this site, so it is possible a lower value has gone unreported




Lowest July mean temperature for at least 20 years
Observed
(°C)
Most recent
lower
Average for
July
Moorabbin Airport 9.4 8.5 in 1998 10.0
Scoresby Research Institute 8.7 8.5 in 1998 9.5



Summary statistics for July 2022
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
July
2022
Diff
from
average
Highest for
July
2022
Mean for
July
2022
Diff
from
average
Lowest for
July
2022
Total for
July
2022
Average
for
July
Rank of
July
2022
Fraction of
July
average
Cerberus 13.5 -0.2 17.5 24th 5.1 -1.3 -1.5 21st 65.2 70.3 average 93%
Coldstream 13.8 +0.4 18.5 24th 2.0 -2.0 -3.8 20th 48.8 61.0 low 80%
Essendon Airport 13.5 +0.3 18.2 24th 5.0 -0.5 -1.5 21st 34.0 42.7 average 80%
Ferny Creek 9.9 +0.2 15.1 22nd 5.1 -0.1 2.2 19th 73.8 113.7 v low 65%
Frankston (Ballam Park) 13.6   18.0 24th 5.9   1.1 20th 59.0
Laverton RAAF 13.6 -0.1 18.2 24th 5.0 -0.1 -1.1 21st 38.6 38.0 average 102%
Melbourne (Olympic Park) 14.0   19.3 24th 6.2   0.8 20th 36.2 39.9 average 91%
Melbourne Airport 13.4 +0.2 17.6 22nd 4.4 -1.1 -1.5 20th 37.8 35.0 average 108%
Moorabbin Airport 13.8 +0.1 18.7 24th 4.9 -1.3 -1.4 21st 47.6 60.5 average 79%
Scoresby Research Institute 13.8 +0.7 18.1 22nd 3.8 -2.1 -1.8 20th 50.4 72.1 low 70%
Viewbank 14.1 +0.1 18.8 22nd 4.0 -2.0 -2.5 20th 46.6 47.1 average 99%
Wallan (Kilmore Gap) 9.5 +0.4 13.3 24th 4.0 0.0 0.8 30th 48.8 59.8 average 82%

Daily maximum temperatures for July 2022
12345678910111213141516171819202122232425262728293031
Cerberus10.911.912.513.314.915.514.214.013.714.713.911.213.212.613.412.914.111.612.013.215.415.613.917.514.911.214.712.512.713.114.5
Coldstream13.713.312.613.314.716.712.711.911.715.813.810.312.710.913.813.415.011.312.214.216.618.314.718.516.111.614.113.412.313.114.2
Essendon Airport12.312.212.413.013.817.513.811.012.615.313.210.512.612.015.012.715.811.111.612.115.117.913.418.215.112.415.012.912.512.414.1
Ferny Creek9.58.78.48.810.112.98.77.58.411.810.16.88.98.29.88.89.96.98.211.513.215.111.314.313.27.89.89.09.69.110.8
Frankston (Ballam Park)11.612.413.213.014.716.312.513.612.815.013.910.612.912.013.112.614.311.911.612.315.217.614.218.016.810.914.212.812.913.014.4
Laverton RAAF12.211.712.812.914.016.814.012.213.212.815.011.212.812.615.012.816.511.411.711.113.218.212.918.214.712.515.813.612.813.413.7
Melbourne (Olympic Park)12.512.513.213.315.017.613.911.912.915.914.011.012.412.615.513.815.811.412.811.213.819.014.519.316.813.215.313.212.713.014.7
Melbourne Airport11.711.912.112.713.616.914.111.712.715.613.410.112.411.714.312.516.710.611.112.415.517.613.417.413.912.315.613.212.312.513.9
Moorabbin Airport12.212.413.015.215.213.312.212.415.314.610.312.712.814.013.715.811.511.911.315.318.614.718.716.511.714.612.713.415.6
Scoresby Research Institute13.213.012.013.414.316.413.211.912.216.013.99.713.311.814.013.014.811.912.613.117.118.118.015.911.214.913.312.813.115.1
Viewbank13.113.412.514.114.617.213.311.413.114.914.010.012.511.715.213.516.311.612.813.517.718.813.818.415.512.215.813.613.513.116.1
Wallan (Kilmore Gap)9.08.18.38.910.412.19.58.18.511.66.47.28.07.69.67.811.07.47.39.913.113.111.313.311.09.211.710.18.68.09.3
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 July 2022
12345678910111213141516171819202122232425262728293031
Cerberus5.24.93.03.66.80.53.89.19.21.84.06.86.16.83.49.19.36.90.80.1-1.55.47.66.36.28.49.17.14.7-1.34.7
Coldstream0.21.70.3-3.0-1.1-3.4-1.35.15.92.00.53.82.23.33.36.99.32.30.1-3.8-3.7-1.82.37.93.07.55.15.53.9-3.12.3
Essendon Airport4.95.23.34.96.60.15.18.46.23.94.86.25.25.15.77.88.05.82.5-0.8-1.51.56.29.36.67.07.07.85.2-1.26.8
Ferny Creek4.85.14.03.56.34.54.65.65.15.26.55.34.13.94.35.55.42.42.22.64.07.99.38.98.84.84.36.13.92.25.8
Frankston (Ballam Park)5.87.75.06.46.73.05.18.85.86.55.87.04.15.44.67.78.87.03.31.11.25.39.28.78.08.78.86.75.31.14.9
Laverton RAAF4.57.02.97.96.70.94.58.66.12.15.57.74.94.76.28.28.34.93.8-0.9-1.11.66.49.37.77.35.95.43.2-1.04.8
Melbourne (Olympic Park)5.97.03.74.67.53.14.98.27.63.85.88.07.17.57.28.19.17.23.80.81.23.48.110.48.18.89.39.36.52.14.3
Melbourne Airport4.25.13.83.26.7-0.53.27.55.92.34.55.14.64.75.97.37.34.32.5-1.5-0.21.55.89.76.96.06.66.64.2-1.15.8
Moorabbin Airport3.93.80.72.04.80.24.78.78.32.14.67.56.42.74.98.99.07.31.7-0.7-1.41.86.17.55.98.89.18.86.70.36.1
Scoresby Research Institute1.72.21.21.64.5-0.72.46.66.32.45.47.13.53.15.38.59.15.40.7-1.8-1.50.87.66.85.95.50.56.1
Viewbank2.74.03.13.76.6-0.32.35.45.84.22.75.35.03.74.86.59.26.00.1-2.5-1.90.74.58.77.07.47.37.75.2-1.21.5
Wallan (Kilmore Gap)4.54.63.23.13.93.64.95.54.23.93.04.23.43.24.52.72.92.70.91.93.15.97.67.86.94.44.45.22.90.83.0
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 July 2022
12345678910111213141516171819202122232425262728293031
Bonbeach (Carrum (Patterson River Countr - - - - - - - 8.0 4.5 - - 2.0 2.0 - - - - 5.0 3.0 - - - - 7.4 5.5 - - 4.0 4.0
Bullengarook East - 4.0 0.6 0.4 0.2 - 3.0 0.2 - 1.6 6.4 2.0 - - 3.2 4.2 2.8 0.2 0.2 - - 2.2 10.0 0.2 2.4 3.2 1.0 0.2 -
Burnside 0.9 - - - 2.0 - - - 10.0 - - 2.0 3.0 2.0 - - - - 1.7 - - - 1.2 9.0 - 5.0 2.0 - 0.2 - -
Cape Schanck - - 2.8 - - - 2.4 4.0 0.8 - - - 8.4 - - - 2.6 10.0 - - - - - 5.6 - 13.2 6.8 6.0 7.6 - -
Cerberus 1.0 1.8 0.6 - 0.2 - 0.8 6.6 2.6 1.6 0.2 0.4 6.2 0.4 0.2 - 2.0 12.0 0.2 - - 0.2 - 5.4 - 10.2 2.0 5.8 4.8 - -
Cheltenham Kingston Centre - - - - - - - 2.8 4.0 - - 0.4 2.0 - - - 6.0 - 1.0 - - - - 5.6 - 4.0 1.2 - 4.1 - 0.4
Coldstream - - - - - - 0.4 6.2 8.4 2.0 - - 2.8 2.0 - - - 7.2 2.4 - 0.2 - - 3.2 - 3.2 3.0 2.6 5.2 - -
Eltham - - - - 0.4 - 5.0 8.6 0.8 0.2 0.2 4.4 1.6 - - - 4.6 0.6 - - - - 4.4 - 2.6 5.0 1.2 2.8

Essendon Airport - - - - - 0.2 - 1.4 10.4 0.4 - 1.8 3.4 1.0 - - - - 0.8 0.2 - - 0.6 6.4 - 3.4 2.8 0.6 0.6 - -
Ferny Creek - 0.2 - - 0.4 - 0.4 16.6 11.6 1.4 - - 8.0 5.8 - - 1.2 15.2 3.8 - - - - - - - - - 8.8 0.4 -
Frankston (Ballam Park) 0.6 0.2 0.2 0.2 0.2 - 1.2 11.0 3.2 0.6 - 0.4 2.8 1.4 - 0.2 1.6 5.2 3.2 - - - - 6.6 - 8.2 3.2 3.0 5.6 0.2 -
Greenvale Reservoir - - 0.2 - 0.2 0.2 - 0.2 12.0 0.2 - 0.6 4.8 2.4 - - - 0.2 2.2 0.2 - - - 4.0 0.2 6.4 2.4 0.6 1.4 0.4 0.2
Kinglake West - - - - - - 0.6 9.2 15.8 3.2 - 0.4 9.4 2.4 - - 6.2 10.0 - - - - 2.0 - 9.2 12.4 14.0 8.2 - -
Kinglake West (Wallaby Creek) - - - - - - 1.2 4.8 20.4 3.0 0.2 0.2 7.6 8.0 - - 6.6 8.4 0.6 0.2 0.2 0.2 - 2.0 0.2 8.0 10.6 11.4 5.6 0.2 0.2
Laverton RAAF 1.4 0.4 0.2 - - 0.2 - 1.6 7.6 0.6 - 1.6 2.4 0.8 - - - 0.6 2.2 0.2 - - 2.2 6.2 - 4.8 3.0 0.6 2.0 - -
Macedon Forestry 1.0 - - - - - - - 6.6 1.0 3.2

















Melbourne (Olympic Park) - - - - - - 0.4 2.4 5.8 0.6 - 1.2 1.6 1.6 - - - 4.0 - 0.2 - - 1.2 7.8 - 4.4 3.0 1.0 1.0 - -
Melbourne Airport - - - - 0.4 - - 0.6 12.0 0.2 - 2.0 4.2 1.0 - - - 0.2 2.2 0.2 - - - 6.2 - 4.8 1.6 0.8 1.2 0.2 -
Melbourne Botanical Gardens - - 0.1 - - - 0.2 3.6 8.0 0.2 1.4 2.2 2.6 1.8 - - - 4.4 0.2 - - - 2.2 8.6 - 5.7 3.0 1.2 - - -
Mitcham - - - - - 0.2 0.2 4.4 9.6 1.0 - 0.2 3.8 1.4 - - - 2.0 1.4 - - - - 4.2 0.2 3.8 2.4 3.4 2.6 - -
Monbulk (Spring Road) - - - - 1.2 - - 15.0 16.6 1.6 - - 7.2 5.0 - - 2.2 15.0 6.8 - - - - 4.6 - 7.6 7.2 6.6 5.6 - -
Moorabbin Airport - - 0.2 - 0.2 - 0.2 5.6 10.2 0.2 - 1.2 4.6 0.6 - - 1.4 2.0 1.2 - - - 0.2 6.6 - 5.2 0.6 2.2 5.2 - -
Mornington - - - 2.0 - - - - - - - - 4.0 - - - - - - - - - - - - 30.0 - 4.0 4.0

Mount Waverley (Riversdale Golf Club) - - - - 0.5 - 0.4 2.6 11.1 1.4 - - 5.2 1.4 - - 0.5 3.2 1.6 - - - - 6.8 - 6.4 1.4



Oakleigh (Metropolitan Golf Club) - - - - - - - - - 10.1 - - - - - - - 5.1 - - - - - 8.2 - 6.4 2.2 2.0 2.8

Preston Reservoir - - - - - - - 1.6 8.4 0.6 - 0.6 1.0 4.0 - - - 1.2 - - 0.2 - - 6.6 - 5.6 4.0 1.2 2.8 0.2 -
Rockbank (Melton) 1.8 0.6 - - - - - - 3.6 0.4 - 3.8 1.8 0.2 - 3.6 0.4 1.2












Romsey - - - - 0.6 0.2 0.2 - 3.0 0.2 - 1.4 5.6 1.6 0.2 - 7.2 3.2 2.4 0.2 - - - 4.2 0.4 11.6 1.4 1.2 0.6 0.6 -
Rosebud (Country Club) - - 1.2 - 0.6 - 1.0 12.8 - - - 0.8 5.4 - 1.4 10.0 0.8 - - - 6.8 - 12.2 4.4 4.6 8.8

Scoresby Research Institute - - 0.2 - - 0.2 - 5.8 8.8 2.0 0.2 0.2 5.0 3.4 - - 0.8 6.8 2.4 0.2 0.2 - - 4.2 - 5.2 2.0 2.8

-
Springvale (Sandown) - - - - 0.4 - 2.8 11.4 2.8 - 0.2 4.2 3.0 - - 1.0 1.2 2.4 - - - - 6.2 0.4 5.0 0.6 2.0 6.8 1.0

Springvale Necropolis - - - - - - - - 18.0 - 4.5 3.5 - 2.0 - - - - - - - 13.0 - 5.4 7.0

Toolangi (Mount St Leonard DPI) - 1.6 - - - - 25.5 - - 17.8 - 8.6 - - - - 3.0 - - - - 39.0
Toorourrong Reservoir (Toorourrong) - - - - - - 0.4 1.6 10.6 1.4 - - 6.6 4.0 - - 4.6 5.0 1.0 0.2 0.2 - - 0.2 - 6.4 5.0 4.6 4.4 0.2 -
Upper Plenty - - - - - - 1.0 2.8 10.8 1.0 - 0.2 6.2 3.2 - - 3.2 9.8 0.8 - - - - 1.6 - 7.0 5.4 2.8 3.0 0.2 -
Viewbank - - 0.2 - 0.2 - 0.2 4.8 10.4 1.8 0.2 - 5.0 2.8 - - - 1.8 0.4 - - 0.2 0.4 5.0 - 5.4 3.8 1.4 2.6 - -
Wallan - - - - - - - 16.0 - - - - 8.8 3.8 - - 4.0 8.2 - - - - - 1.2 - 5.6 4.6 - 2.2 - -
Wallan (Kilmore Gap) 0.2 - - - - 0.2 0.2 0.6 10.8 0.6 - 0.2 7.2 4.8 - - 4.6 2.2 1.0 0.2 - - - 1.6 0.2 7.4 4.0 2.0 0.4 0.4 -
Willowmavin (Avalon Station) - - - - - 0.2 - - 2.2 - - 0.4 3.4 0.4 - - 9.0 2.2 1.0 0.4 - - - 6.2 - 11.4 0.8 1.6 - 0.6 -
Woodend 0.2 0.2 - - 0.2 - 0.2 0.8 2.6 0.2 0.2 0.6 3.0 4.4 - - 10.4 2.2 2.6 0.4 0.2 0.2 0.2 5.6 0.4 12.2 2.4 2.0 0.4 0.4 0.2
Yan Yean - - - - - - 0.2 1.4 10.2 1.4 - - 6.4 4.0 0.2 - 0.4 6.0 0.2 0.2 - - - 2.0 - 3.6 5.4 2.8 4.4 - -
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 third 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.

This summary includes 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 5 pm on Monday 1 August 2022. 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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