Friday, 1 September 2023 - Monthly Climate Summary for Victoria - Product code IDCKGC16R0

Victoria in August 2023

Rainfall

  • Averaged across the state rainfall for August was 36.8 mm, which was 51.1% below the 1961–1990 average and the lowest August rainfall total since 2014.
  • August rainfall totals were below average for most of the state and very much below average (the lowest 10% since records began) for large areas of the state's south and parts of the state's east.
  • Mount Baw Baw recorded the highest rainfall total for the month at 123.6 mm.

Temperature

  • Averaged across the state, the mean maximum temperature for August was 1.39 °C above the 1961–1990 average and the warmest since 2011.
  • Mean maximum temperatures were above to very much average across Victoria, with anomalies more than 1 °C above the 1960–1991 average across most of the state.
  • Some sites in the North East and Gippsland districts had their highest August mean daily maximum temperature on record.
  • Mildura Airport recorded the warmest day on the 29th at 26.3 °C and Falls Creek recorded the coldest day on the 18th at -1.1 °C.
  • Averaged across the state, the mean minimum temperature for August was 0.55 °C below the 1961–1990 average.
  • Mean minimum temperatures were above to very much above average for most of the state's south and east.
  • Mount Hotham and Mount Baw Baw had their highest August mean daily minimum temperature on record.
  • Scoresby Research Institute had its warmest night on the 4th at 14.7 °C, while Mount Hotham had its coldest night on the 19th at -5.3 °C.

Extremes Maps Records Summaries Important notes the top

Extremes in August 2023
Hottest day 26.3 °C at Mildura Airport on the 29th
Warmest days on average 18.3 °C at Mildura Airport
Coolest days on average 3.5 °C at Mount Hotham
Coldest day -1.1 °C at Falls Creek on the 18th
Coldest night -5.3 °C at Mount Hotham on the 19th
Coolest nights on average -1.4 °C at Mount Hotham
Warmest nights on average 10.0 °C at Wilsons Promontory Lighthouse
Warmest night 14.7 °C at Scoresby Research Institute on the 4th
Warmest on average overall 12.2 °C at Cape Nelson Lighthouse
12.2 °C at Mallacoota
12.2 °C at Melbourne (Olympic Park)
12.2 °C at Rhyll
Coolest on average overall 1.0 °C at Mount Hotham
Wettest overall 123.6 mm at Mount Baw Baw
Wettest day 39.4 mm at Myrtleford (Ovens Research Station) on the 4th
Strongest wind gust 113 km/h at Wilsons Promontory Lighthouse on the 18th

Extremes Maps Records Summaries Important notes the top

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 August mean daily maximum temperature
New record
(°C)		 Old
record		 Years of
record		 Average for
August
Mount Buller 4.7 4.5 in 1997 36 2.0
Mount Hotham 3.5 3.0 in 2011 32 0.5
Gelantipy 13.0 12.8 in 1995 30 11.1


Record highest August mean daily minimum temperature
New record
(°C)		 Old
record		 Years of
record		 Average for
August
Mount Hotham -1.4 -1.5 in 2011 32 -3.5
Mount Baw Baw 0.0 -0.1 in 2011 25 -1.5


Record highest August mean temperature
New record
(°C)		 Old
record		 Years of
record		 Average for
August
Mount Buller 2.0 1.9 in 1998 36 -0.2
Mount Hotham 1.0 0.8 in 2011 32 -1.5
Mount Baw Baw 2.6 = 2.6 in 2011 25 0.7

Highest August mean temperature for at least 20 years
Observed
(°C)		 Most recent
higher		 Average for
August
Maryborough 10.0 10.6 in 1982 8.9
Mallacoota 12.2 12.4 in 1999 11.1


Extremes Maps Records Summaries Important notes the top

Summary statistics for August 2023
Maximum temperatures
(°C)		 Minimum temperatures
(°C)		 Rainfall
(millimetres)
Mean for
August
2023		 Diff
from
average		 Highest for
August
2023		 Mean for
August
2023		 Diff
from
average		 Lowest for
August
2023		 Total for
August
2023		 Average
for
August		 Rank of
August
2023		 Fraction of
August
average
North Mallee (district 76)
Mildura Airport 18.3 +0.9 26.3 29th 4.8 -0.4 -0.3 16th 13.8 25.3 low 55%
Walpeup Research 17.3 +0.9 25.2 29th 5.8 +0.5 1.7 7th 46.2 34.6 high 134%
South Mallee (district 77)
Hopetoun Airport 17.1 +0.4 22.7 29th 3.9 +0.4 -3.3 15th 19.4 27.0 average 72%
Swan Hill Aerodrome 17.0 +0.3 23.4 29th 4.1 +0.1 -1.4 16th 27.2 27.4 average 99%
North Wimmera (district 78)
Kellalac (Warracknabeal Airport) 16.1   21.2 25th 4.3   -2.1 16th 19.6
Nhill Aerodrome 15.8 +0.4 20.9 25th 5.1 +0.4 -1.0 15th 31.4 44.2 low 71%
South Wimmera (district 79)
Edenhope Airport 15.5 +0.9 21.5 29th 6.0 +0.6 -0.8 15th 20.2 65.0 v low 31%
Grampians (Mount William) 7.4 +1.6 12.6 29th 2.1 +1.0 -1.0 14th 75.8 152.5 low 50%
Horsham Aerodrome 15.7 +0.6 20.4 25th 3.5 +0.3 -2.9 15th 34.0 41.7 average 82%
Kanagulk 15.0 +0.8 19.3 25th 4.8 +0.3 -1.3 16th 28.0 65.9 v low 42%
Longerenong 15.7 +0.9 20.9 25th 3.8 -0.1 -3.4 15th 38.4 44.0 average 87%
Pyrenees (Ben Nevis) 10.2 +1.8 14.5 27th 4.0 +1.3 0.8 16th 49.6 85.2 v low 58%
Stawell Aerodrome 14.4 +0.6 18.4 25th 5.1 +0.5 -1.4 15th 27.0 54.9 low 49%
Lower North (district 80)
Charlton 16.3 +0.7 20.9 29th 3.9 -0.1 -2.8 16th 20.4 36.4 low 56%
Echuca Aerodrome 16.3 +1.0 21.2 29th 4.1 -0.6 -1.6 16th 24.6 42.2 low 58%
Kerang 16.6 +0.5 23.0 29th 5.0 +0.1 -1.0 16th 21.1 36.7 low 57%
Kyabram 16.0 +1.1 19.5 3rd 4.3 +0.4 -1.5 16th 25.2 42.1 low 60%
Upper North (district 81)
Bendigo Airport 15.3 +1.1 18.7 28th 3.6 +0.7 -3.9 16th 22.6 51.7 low 44%
Shepparton Airport 16.0 +1.1 20.0 29th 4.4 +0.7 -1.3 16th 33.6 45.0 average 75%
Tatura Inst Sustainable Ag 15.7 +1.0 19.6 29th 4.4 +0.6 -2.0 16th 28.8 46.5 low 62%
Yarrawonga 16.2 +1.0 21.9 4th 3.9 +0.3 -1.2 15th 33.6 39.5 average 85%
Lower Northeast (district 82)
Benalla Airport 15.7 +1.2 19.5 29th 4.3 +0.9 -0.5 15th 53.2 59.7 average 89%
Hunters Hill 10.8 +1.9 15.2 26th 4.1 +1.6 -0.1 19th 87.8 138.9 low 63%
Rutherglen Research 16.2 +2.1 20.6 4th 3.2 +0.5 -2.4 15th 53.2 60.2 average 88%
Strathbogie 13.2 +1.7 17.7 28th 2.6 +0.3 -4.0 16th 63.4 114.4 low 55%
Wangaratta Aero 15.8 +1.3 19.7 28th 3.6 +0.6 -0.7 16th 42.2 57.4 average 74%
Upper Northeast (district 83)
Edi Upper 14.7 +1.4 18.8 29th 4.9 +1.2 1.0 16th 68.6 116.7 low 59%
Falls Creek 4.1 +2.2 7.9 29th -1.0 +1.7 -5.1 19th 112.6 106.2 average 106%
Mount Buller 4.7 +2.7 9.3 27th -0.7 +1.8 -3.9 19th 119.6 160.7 average 74%
Mount Hotham 3.5 +3.0 6.7 29th -1.4 +2.1 -5.3 19th 106.6 120.1 average 89%
Omeo 14.1 +1.9 17.8 29th 1.7 +0.3 -3.9 6th 20.4 49.5 low 41%
East Gippsland (district 84)
Combienbar AWS 14.0 +1.3 20.7 4th 6.3 +1.1 3.3 6th 34.0 65.9 low 52%
Gabo Island Lighthouse 16.2 +1.5 20.1 4th     6.8 9th 12.0 71.7 v low 17%
Gelantipy 13.0 +1.9 18.1 4th 3.9 +1.1 -0.7 6th 32.8 54.4 low 60%
Lakes Entrance (Eastern Beach Road) 16.9 +0.9 24.1 3rd     4.9 2nd 33.0 57.4 low 57%
Mallacoota 16.9 +1.2 22.6 4th 7.5 +1.0 2.1 9th 15.4 69.5 v low 22%
Mount Nowa Nowa 16.0 +1.7 21.9 29th 7.4 +1.0 3.9 16th 31.6 63.3 low 50%
Orbost 17.2 +1.2 24.7 4th 6.6 +0.5 1.4 16th 29.6 63.9 low 46%
West Gippsland (district 85)
Bairnsdale Airport 17.5 +1.8 23.8 3rd 4.8 +0.3 -1.7 17th 30.0 37.3 average 80%
Corner Inlet (Yanakie) 15.3 +1.0 20.1 29th 7.0 +0.3 1.1 16th 37.4 89.6 v low 42%
East Sale 16.5 +1.4 21.2 3rd 4.8 +0.6 -1.1 16th 20.8 46.0 v low 45%
East Sale Airport 16.7   22.7 3rd 4.6   -1.1 16th 20.0
Morwell (Latrobe Valley Airport) 16.1 +1.3 22.4 3rd 4.1 -0.3 -2.6 16th 24.8 66.4 lowest 37%
Mount Baw Baw 5.1 +2.2 10.0 27th 0.0 +1.5 -3.7 23rd 123.6 178.6 low 69%
Mount Moornapa 15.0 +1.4 21.6 3rd 6.6 +1.0 3.1 16th 24.6 52.3 low 47%
Nilma North (Warragul) 15.1   21.1 3rd 4.9   -1.7 16th 57.2 110.0 v low 52%
Pound Creek 15.6 +1.0 20.2 3rd 6.9 +0.4 0.3 16th 41.6 97.4 v low 43%
Wilsons Promontory Lighthouse 14.1 +1.3 21.6 4th 10.0 +1.6 7.4 14th 79.4 123.4 low 64%
Yarram Airport 16.8 +1.8 22.9 3rd 4.2 -0.8 -3.7 17th 19.4 51.6 v low 38%
East Central (district 86)
Cerberus 15.6 +1.0 19.6 3rd 7.1 +0.4 -0.9 16th 32.8 74.8 lowest 44%
Coldstream 15.6 +0.9 19.7 25th 4.8 +0.4 -2.9 16th 53.8 72.8 low 74%
Essendon Airport 15.7 +1.3 21.0 25th 7.6 +1.8 -0.1 16th 24.8 48.1 low 52%
Ferny Creek 11.9 +1.0 16.8 29th 6.3 +1.0 2.4 23rd 95.4 125.7 low 76%
Frankston (Ballam Park) 15.3   19.9 3rd 7.9   1.3 16th 34.4
Melbourne (Olympic Park) 15.8 +0.5 19.8 25th 8.6 +0.6 1.6 16th 22.4 47.8 v low 47%
Melbourne Airport 15.7 +1.2 20.6 25th 6.5 +0.6 0.5 16th 28.0 44.2 low 63%
Moorabbin Airport 15.9 +1.0 20.2 3rd 7.8 +0.9 0.0 16th 23.6 64.5 v low 37%
Rhyll 15.2 +0.9 18.4 3rd 9.2 +0.8 5.1 14th 44.4 79.5 low 56%
Scoresby Research Institute 15.7 +1.4 19.9 3rd 7.5 +1.1 -0.8 16th 38.0 79.4 v low 48%
Viewbank 16.1 +1.0 20.2 3rd 6.6 +0.3 -1.3 16th 29.4 56.8 v low 52%
West Central (district 87)
Avalon Airport 16.5 +1.1 23.0 29th 5.8 +0.2 -2.0 16th 16.0 41.6 v low 38%
Breakwater (Geelong Racecourse) 16.3 +1.0 21.7 29th 7.1 +0.5 0.9 9th 18.8 43.3 v low 43%
Laverton RAAF 16.2 +1.3 21.0 3rd 7.0 +1.4 -0.6 16th 29.2 44.4 low 66%
Point Cook RAAF 15.9   20.8 4th 6.7   -0.4 16th 21.4
She Oaks 14.3 +1.0 18.9 29th 5.8 +0.5 -1.1 15th 31.8 43.9 low 72%
North Central (district 88)
Castlemaine Prison 14.2 +1.0 18.5 28th 4.5 +0.9 -3.0 16th 32.0 65.2 low 49%
Eildon Fire Tower 11.6 +1.1 17.1 27th 5.2 +1.0 1.1 14th 54.0 75.1 low 72%
Lake Eildon 14.9 +1.2 19.9 27th 4.9 +0.7 0.0 6th 62.0 98.8 low 63%
Mangalore Airport 15.4 +1.3 19.2 27th 3.9 0.0 -2.6 16th 29.4 59.7 low 49%
Maryborough 15.2 +1.3 19.7 28th 4.7 +0.8 -1.9 16th 30.2 56.2 low 54%
Puckapunyal Lyon Hill (Defence) 15.0   18.6 29th 5.4   -0.1 16th 38.6
Puckapunyal West (Defence) 14.3   18.7 29th 5.4   0.9 16th 41.0
Redesdale 15.1 +1.4 19.0 28th     -1.1 23rd 19.8 59.6 low 33%
Wallan (Kilmore Gap) 11.5 +0.9 15.8 28th 5.1 +0.8 1.9 16th 35.8 63.2 low 57%
Western Plains (district 89)
Ararat Prison 14.6 +1.6 19.0 25th 4.6 +0.7 -2.4 16th 38.2 67.7 low 56%
Ballarat Aerodrome 12.8 +1.4 16.9 25th 4.2 +0.5 -3.9 15th 29.8 73.7 v low 40%
Westmere 13.8 +0.5 18.3 29th 4.8 +0.4 -3.1 15th 23.4 57.5 v low 41%
West Coast (district 90)
Aireys Inlet 15.4 +1.0 21.5 29th 8.4 +1.0 4.7 15th 22.2 64.7 lowest 34%
Cape Nelson Lighthouse 15.1 +0.6 20.9 29th 9.4 +0.7 4.1 15th 51.0 97.5 low 52%
Cape Otway Lighthouse 14.7 +0.9 21.3 29th 9.4 +1.5 4.8 14th 38.4 103.9 v low 37%
Casterton 15.0 +0.8 21.5 29th 5.3 -0.1 -1.3 15th 34.4 82.1 v low 42%
Colac (Mount Gellibrand) 13.6 +0.9 19.0 29th 6.7 +1.2 3.0 15th 30.4 59.5 v low 51%
Dartmoor 15.3 +0.8 21.7 29th 6.0 +0.2 -1.7 15th 43.2 99.8 v low 43%
Hamilton Airport 14.0 +0.7 20.4 29th 5.1 +0.3 -0.9 15th 29.6 77.0 v low 38%
Mortlake Racecourse 14.7 +0.7 20.7 29th 5.6 +0.8 -1.3 15th 28.4 65.3 v low 43%
Port Fairy AWS 15.9 +0.8 21.5 29th 7.7 +0.4 1.5 15th 41.2 85.4 v low 48%
Portland Airport 14.8 +0.8 20.2 29th 7.3 +0.6 2.3 16th 56.4 106.0 low 53%
Warrnambool Airport NDB 14.9 +0.6 20.8 29th 6.2 +0.3 -0.6 15th 41.6 91.4 v low 46%

Extremes Maps Records Summaries Important notes the top

Notes

The Monthly climate summary, usually published in the first week of the following 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.

This statement has been prepared based on information available at 10 am on Friday 1 September 2023. 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.

Information about Australian Indigenous seasonal calendars is available at the Indigenous Weather Knowledge website.

Creative Commons By Attribution logo Unless otherwise noted, all maps, graphs and diagrams in this page are licensed under the Creative Commons Attribution 4.0 International Licence

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