Victoria in winter 2020: mostly dry with mild days in the east and south

Winter rainfall in Victoria was below average in most of the state, but above average in East Gippsland where several coastal lows brought heavy rainfall. Daytime temperatures were warmer than average in most of the eastern and southern Victoria. Night-time temperatures were cooler than average across much of the state's west and warmer than average in parts of Victoria's north-east and east.

Below average rainfall

  • Winter was drier than average in most of the state, mostly due to the very dry July.
  • Averaged across Victoria, rainfall was around 24% below the winter mean of 205 mm.
  • It was wetter than average in East Gippsland where several coastal lows brought heavy rainfall.
  • The state's highest daily rainfall total of 122 mm was recorded at Weeragua (Cann River) in East Gippsland, on 28 July.
  • With 642.0 mm recorded during this winter, the wettest place in Victoria was Mount Baw Baw).
  • Averaged across the state, the year-to-date rainfall total was around 455 mm, 5% above the long-term average.

Mild days in the east and south, cold nights in the west

  • Daytime temperatures during winter were warmer than average in most of the eastern and southern Victoria, and close to average elsewhere.
  • Averaged across the state, maximum temperature was 0.25 °C warmer than average.
  • There were several periods with very low daytime temperatures, in a wake of vigorous cold fronts, notably 20-24 June, 2-5 July, 3-6 August and 22-24 August.
  • The lowest daytime temperature during the winter, −5.0 °C, was recorded at Mount Hotham on 4 August.
  • Due to fog and low clouds, which prevented the ground and air above it from being warmed by the sun, low daytime temperatures were recorded on 8 July in the north-west Victoria; Mildura Airport and Ouyen had their coldest winter day on record on 8 July.
  • Night time temperatures were cooler than average in most of western Victoria; elsewhere they were close to average, while in East Gippsland night time temperatures were much warmer than average.
  • Some sites in western Victoria had their lowest winter mean daily minimum temperature on record, while Walpeup Research had its lowest winter temperature on record on 5 August.
  • In contrast, Mallacoota in East Gippsland had its highest winter mean daily minimum temperature in two decades.
  • Year-to-date mean maximum temperature was around 0.20 °C below average, the coldest such period since 1996.

Snow and frost

  • Winter started with snow, and several very cold outbreaks brought more snow to the Victorian Alps; on 4 August, and again on 22 August, snow fell to low levels, covering the Dandenong and Yarra Ranges, and Mount Macedon.
  • Many parts of Victoria experienced large areas of frost on 9 June and again on 16-17 July, when night-time temperatures plummeted due to clear skies and light winds under the strong high-pressure system.
  • A tornado was observed near Woodend, north-west of Melbourne on 13 August; it uprooted trees and lifted hay bales into the air.
  • Strong winds were recorded on number of days during the season; on 27 August, a cold front and associated trough rapidly crossed the state, resulting in squally westerly winds across southern and mountain districts; Wilsons Promontory Lighthouse reported 157 km/h, the strongest wind gust in Victoria this winter; the State Emergency Services received more than 1000 calls for help, mostly for downed trees and powerlines.

Further information

Media
(03) 9669 4057

Extremes in winter 2020
Hottest day 25.5 °C at Mallacoota on 30 Aug
Warmest days on average 16.6 °C at Mildura Airport
Coolest days on average 2.5 °C at Falls Creek
Coldest day -5.0 °C at Mount Hotham on 4 Aug
Coldest night -7.9 °C at Mount Hotham on 5 Aug
Coolest nights on average -2.1 °C at Falls Creek
Warmest nights on average 9.5 °C at Wilsons Promontory Lighthouse
Warmest night 13.9 °C at Gabo Island Lighthouse on 14 Jun
13.9 °C at Cape Otway Lighthouse on 30 Aug
Warmest on average overall 12.1 °C at Gabo Island Lighthouse
Coolest on average overall 0.2 °C at Falls Creek
Wettest overall 642.0 mm at Mount Baw Baw
Wettest day 122.0 mm at Weeragua (Cann River (East Branch)) on 28 Jul
Strongest wind gust 157 km/h at Wilsons Promontory Lighthouse on 27 Aug

Maps
ObservedAnomalyDecile rank
Total
rainfall
Map of Rainfall totals Map of Percentage of normal rainfall Map of Rainfall deciles
Mean
daily
maximum
temperatures
Map of Mean maximum temperature Map of Anomaly in mean maximum temperature Map of Decile rank of mean maximum temperature
Mean
daily
minimum
temperatures
Map of Mean minimum temperature Map of Anomaly in mean minimum temperature Map of Decile rank of mean minimum temperature

Click on a map to show it full size in a pop-up window


Record highest winter daily rainfall
New record
(mm)
Old
record
Years of
record
Manangatang (Cocamba) 24.0 on 9 Aug 23.6 on 13 Jun 2001 21



Record lowest winter daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
winter
Mildura Airport 7.6 on 8 Jul 7.9 on 11 Jul 1956 75 16.3
Ouyen (Post Office) 7.2 on 8 Jul 7.3 on 25 Jun 2003 64 16.0
Yarrawonga 6.7 on 7 Jul 6.9 on 8 Jul 1995 28 14.4



Record lowest winter temperature
New record
(°C)
Old
record
Years of
record
Average for
winter
Walpeup Research -2.2 on 5 Aug -2.0 on 21 Jul 1982 54 5.3



Highest winter mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
winter
Mallacoota 7.5 7.6 in 1999 6.6



Record lowest winter mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
winter
Mortlake Racecourse 3.3 3.4 in 2017 28 4.8
Port Fairy AWS 6.2 6.3 in 2010 28 7.3
Swan Hill Aerodrome 2.7 = 2.7 in 1997 23 4.0
Warrnambool Airport NDB 4.6 4.7 in 2006 21 5.8

Lowest winter mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
lower
Average for
winter
Walpeup Research 4.3 4.2 in 1982* 5.3
Ouyen (Post Office) 3.9 =3.9 in 1997 4.8

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




Record lowest winter mean temperature
New record
(°C)
Old
record
Years of
record
Average for
winter
Warrnambool Airport NDB 9.1 9.3 in 2006 21 9.9

Lowest winter mean temperature for at least 20 years
Observed
(°C)
Most recent
lower
Average for
winter
Kerang 9.2 9.0 in 1989* 9.7
Horsham Aerodrome 8.2 8.1 in 1998 8.9
Mortlake Racecourse 8.5 8.2 in 1998 9.1

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




Summary statistics for winter 2020
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
winter
2020
Diff
from
average
Highest for
winter
2020
Mean for
winter
2020
Diff
from
average
Lowest for
winter
2020
Total for
winter
2020
Average
for
winter
Rank of
winter
2020
Fraction of
winter
average
North Mallee (district 76)
Mildura Airport 16.6 +0.3 23.6 29 Aug 4.1 -0.8 -2.2 23 Jul 56.2 72.0 average 78%
Ouyen (Post Office) 15.9 -0.1 23.9 29 Aug 3.9 -0.9 -1.6 5 Aug 86.7 91.6 average 95%
Walpeup Research 15.7 +0.3 22.4 29 Aug 4.3 -1.0 -2.2 5 Aug 65.4 94.3 low 69%
South Mallee (district 77)
Hopetoun Airport 15.4 -0.3 22.8 29 Aug 2.0 -1.6 -5.3 6 Aug 75.4 75.4 average 100%
Swan Hill Aerodrome 15.5 -0.1 24.0 30 Aug 2.7 -1.3 -3.7 6 Aug 56.6 80.1 low 71%
North Wimmera (district 78)
Kellalac (Warracknabeal Airport) 14.7   21.5 29 Aug 2.8   -3.9 5 Aug 76.8
Nhill Aerodrome 14.4 -0.3 22.8 29 Aug 3.5 -1.1 -3.0 6 Aug 100.6 117.2 average 86%
South Wimmera (district 79)
Edenhope Airport 13.7 -0.3 22.1 29 Aug 4.3 -0.8 -1.0 5 Aug 148.2 182.1 low 81%
Grampians (Mount William) 6.2 +0.5 11.9 29 Aug 1.2 -0.1 -3.8 4 Aug 394.2 452.1 low 87%
Horsham Aerodrome 14.3 -0.1 20.7 29 Aug 2.1 -1.2 -4.1 5 Aug 87.6 117.6 low 74%
Kanagulk 13.3 -0.3 20.5 29 Aug 3.1 -1.3 -3.5 9 Jun 137.4 181.7 low 76%
Longerenong 14.3 +0.3 20.6 29 Aug 2.6 -1.2 -3.3 11 Jun 95.4 130.8 low 73%
Pyrenees (Ben Nevis) 8.5 +0.6 15.5 29 Aug 3.0 0.0 -2.2 4 Aug
Stawell Aerodrome 13.1 -0.1 19.6 29 Aug 3.6 -0.9 -1.6 17 Jul 100.0 160.3 low 62%
Lower North (district 80)
Charlton 14.6 -0.1 21.2 27 Aug 2.7 -1.2 -3.2 6 Aug 58.4 101.7 low 57%
Echuca Aerodrome 14.6 +0.3 23.0 30 Aug 3.2 -1.2 -3.4 24 Jul 96.2 125.3 average 77%
Kerang 14.9 -0.1 24.1 30 Aug 3.6 -0.9 -0.7 9 Jun 75.4 107.1 low 70%
Upper North (district 81)
Bendigo Airport 13.8 +0.4 19.4 30 Aug 2.9 -0.1 -2.7 24 Jul 118.8 155.2 low 77%
Shepparton Airport 14.1 0.0 21.4 30 Aug 3.6 +0.1 -2.4 6 Aug 136.2 124.6 average 109%
Tatura Inst Sustainable Ag 13.9 0.0 21.1 30 Aug 3.5 0.0 -2.6 6 Aug 128.4 136.5 average 94%
Yarrawonga 14.0 -0.4 21.6 30 Aug 3.2 -0.5 -2.9 6 Aug 125.8 126.3 average 100%
Lower Northeast (district 82)
Benalla Airport 13.9 -0.1 20.2 30 Aug 2.2 -1.0 -3.2 6 Aug 135.4 174.9 v low 77%
Hunters Hill 8.6 +0.4 15.4 30 Aug 2.9 +0.4 -2.1 5 Aug 372.8 421.3 average 88%
Rutherglen Research 13.8 +0.5 20.4 30 Aug 1.7 -0.7 -4.8 6 Aug 129.8 177.6 low 73%
Strathbogie 11.5 +0.5 16.9 30 Aug 2.0 0.0 -5.0 9 Jun 227.4 349.7 low 65%
Wangaratta Aero 13.8 0.0 20.1 30 Aug 2.6 -0.2 -3.6 6 Aug 120.2 185.6 low 65%
Upper Northeast (district 83)
Falls Creek 2.5 +0.5 7.1 4 Jun -2.1 +0.3 -7.6 6 Aug 401.2 320.5 high 125%
Mount Buller 2.9 +0.8 8.8 17 Jul -1.7 +0.5 -7.3 5 Aug 383.2 503.9 low 76%
Omeo 11.4 +0.1 16.7 29 Aug 1.5 +0.5 -4.7 25 Jul 148.4 167.4 average 89%
East Gippsland (district 84)
Combienbar AWS 11.4 -0.6 20.9 30 Aug 5.5 +0.2 0.2 5 Aug 328.0 250.1 high 131%
Gabo Island Lighthouse 15.0 +0.5 20.0 16 Jun 9.3 +0.6 3.2 5 Aug 260.6 258.7 average 101%
Gelantipy 10.3 0.0 18.9 29 Aug 3.2 +0.5 -1.7 24 Jul 231.8 183.2 average 127%
Lakes Entrance (Eastern Beach Road) 15.0 -0.5 21.9 29 Aug 6.3 +0.2 0.0 28 Jun 208.2 194.6 average 107%
Mallacoota 15.1 -0.3 25.5 30 Aug 7.5 +0.9 1.6 5 Aug 364.8 246.1 high 148%
Mount Nowa Nowa 13.2 -0.4 22.5 29 Aug 6.7 +0.3 1.2 5 Aug 277.6 204.9 high 135%
Orbost 15.2 -0.3 23.6 30 Aug 6.4 +0.4 -0.2 25 Jul 260.8 220.7 average 118%
West Gippsland (district 85)
Bairnsdale Airport 14.9 -0.2 22.3 29 Aug 4.9 +0.6 -1.3 24 Jul 154.8 150.7 average 103%
Corner Inlet (Yanakie) 13.9   20.9 30 Aug 6.0   0.0 29 Jun 187.0
East Sale 14.6 +0.2 21.7 30 Aug 4.4 +0.5 -1.7 9 Jun 117.6 133.4 average 88%
East Sale Airport 14.7   21.8 30 Aug 4.2   -1.5 9 Jun 125.0
Morwell (Latrobe Valley Airport) 14.2 0.0 22.0 30 Aug 4.2 +0.1 -2.5 9 Jun 148.0 189.8 low 78%
Mount Baw Baw 3.4 +0.5 9.8 17 Jul -1.2 0.0 -6.8 5 Aug 642.0 504.2 high 127%
Nilma North (Warragul) 13.5   21.2 30 Aug 4.6   -2.8 29 Jun 220.6
Pound Creek 14.4 +0.1 21.9 30 Aug 5.7 -0.5 -1.0 29 Jun 213.2 270.9 v low 79%
Wilsons Promontory Lighthouse 12.8 +0.1 21.4 30 Aug 9.5 +0.8 3.1 5 Aug 330.4 364.9 average 91%
Yarram Airport 14.6 -0.2 22.1 30 Aug 4.3 -0.4 -2.7 29 Jun 106.0 154.1 v low 69%
East Central (district 86)
Cerberus 14.1 -0.1 19.5 19 Jun 5.8 -0.8 -0.9 29 Jun 179.8 220.3 low 82%
Coldstream 14.2 +0.2 20.8 30 Aug 4.2 +0.1 -3.6 9 Jun 228.8 198.7 high 115%
Essendon Airport 14.2 +0.4 19.8 27 Aug 6.5 +0.8 -0.4 29 Jun 122.6 131.2 average 93%
Ferny Creek 10.4   16.5 30 Aug 5.4   0.1 5 Aug
Melbourne (Olympic Park) 14.7   20.7 27 Aug 7.3   1.7 28 Jun 120.6
Melbourne Airport 14.0 +0.2 19.8 27 Aug 5.7 -0.2 0.2 29 Jun 118.8 119.8 average 99%
Moorabbin Airport 14.5 +0.2 19.7 30 Aug 6.6 0.0 0.0 29 Jun 158.2 182.4 average 87%
Rhyll 14.0 +0.1 18.2 27 Aug 8.2 -0.3 2.9 5 Aug 185.4 213.2 low 87%
Scoresby Research Institute 14.3 +0.7 20.4 30 Aug 6.0 -0.1 -0.2 28 Jun 183.8 222.5 low 83%
Viewbank 14.4 -0.1 19.8 30 Aug 5.7 -0.5 -0.6 29 Jun 152.6 158.3 average 96%
West Central (district 87)
Avalon Airport 14.8 0.0 21.3 29 Aug 4.9 -0.6 -1.3 28 Jun
Breakwater (Geelong Racecourse) 14.6   21.2 29 Aug 5.6   -0.4 29 Jun 100.0 143.6 low 70%
Laverton RAAF 14.5 +0.2 21.0 27 Aug 5.8 +0.3 -0.5 29 Jun 108.6 121.2 average 90%
Sheoaks 12.9 +0.1 18.0 29 Aug 4.7 -0.6 -1.4 30 Jun
North Central (district 88)
Castlemaine Prison 12.8 +0.2 18.0 27 Aug     -2.0 17 Jul 152.2 182.5 average 83%
Lake Eildon 13.0 +0.2 20.1 30 Aug 4.0 0.0 -1.5 8 Jun 203.0 283.8 low 72%
Mangalore Airport 13.7 +0.3 20.5 30 Aug 3.4 -0.2 -2.6 9 Jun 154.8 169.7 average 91%
Maryborough 13.4 +0.4 19.1 27 Aug 3.6 -0.2 -1.9 24 Jul 131.2 165.3 low 79%
Puckapunyal Lyon Hill (Defence) 13.3   20.2 30 Aug 5.1   0.2 6 Aug 146.8
Puckapunyal West (Defence) 12.9   19.7 30 Aug 4.7   -0.6 24 Jul 148.6
Redesdale 13.6 +0.8 19.9 30 Aug 2.8 -0.5 -2.8 6 Aug 134.0 184.8 low 73%
Wallan (Kilmore Gap) 10.1 +0.2 16.5 30 Aug 4.6 +0.2 -0.1 5 Aug 171.4 190.4 average 90%
Western Plains (district 89)
Ararat Prison 12.7 +0.3 18.2 29 Aug 3.4 -0.3 -4.0 5 Jun 156.5 187.6 low 83%
Ballarat Aerodrome 11.2 +0.4 16.0 27 Aug 3.3 -0.3 -3.5 9 Jun 104.0 202.0 v low 51%
Westmere 12.6 -0.2 17.9 29 Aug 3.2 -1.2 -3.1 17 Jul 147.8 154.9 average 95%
West Coast (district 90)
Aireys Inlet 14.2 +0.3 20.0 29 Aug 7.3 -0.3 2.2 4 Aug 162.2 194.3 low 83%
Cape Otway Lighthouse 13.5 0.0 21.1 29 Aug 8.3 +0.3 4.3 24 Jul 212.2 307.1 low 69%
Casterton 13.5 -0.2 20.9 29 Aug 3.8 -1.3 -3.1 9 Jun 191.8 229.6 low 84%
Colac (Mount Gellibrand) 12.4 +0.2 17.8 29 Aug 5.6 -0.1 0.1 4 Aug 125.4 172.5 low 73%
Dartmoor 13.9 -0.1 22.1 29 Aug 4.0 -1.6 -2.2 10 Jun 196.4 295.3 v low 67%
Hamilton Airport 12.7 -0.1 20.0 29 Aug 3.8 -0.9 -2.5 6 Aug 170.2 215.4 low 79%
Mortlake Racecourse 13.6 +0.1 20.2 29 Aug 3.3 -1.5 -3.4 9 Jun 151.4 181.0 average 84%
Port Fairy AWS 14.6 0.0 21.9 29 Aug 6.2 -1.1 0.5 26 Jul 188.0 251.5 low 75%
Portland (Cashmore Airport) 13.8 +0.2 22.1 29 Aug 5.6 -1.0 0.0 26 Jul 228.8 327.6 low 70%
Warrnambool Airport NDB 13.7 -0.3 20.0 29 Aug 4.6 -1.2 -1.9 26 Jul 175.6 255.4 low 69%

Notes

The Seasonal climate summary, generally published on the first working day of each month, lists the main features of the weather in Victoria 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 statement has been prepared based on information available at 9 am on Tuesday 1 September 2020. 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

Climate