Victoria in August 2017: Above average rainfall in the north and west, cooler than average temperatures

August rainfall in Victoria was above average across most of the State, particularly across the northwest districts. Southern and central districts saw near average rainfall. Cooler days and nights were common across the State during August with especially cold days occurring during the first week and last week of the month. A warm spell in the second week saw some locations report temperatures 2 to 4 degrees above average. Overall, it was Victoria's wettest August since 2013, and the coolest August since 2010

Above average rainfall in the north; tending closer to average across southern parts of the State

Cooler than average temperatures

Wind and Snow

  • Early in the month, blizzard conditions over the alpine region produced heavy snow fall (50 to 100 cm over three days) and reports of snow falling at Trentham and near Ballarat
  • On the 16th, a vigorous westerly flow across Victoria with an embedded cold front saw wind gusts in excess of 120 km/h at exposed coastal locations and elevated regions across the Victorian Alps
  • 40-50cm of snow was reported on the 17th across the Alpine areas, with snow levels dropping to 600-700 metres that produced a light dusting of snow across the Dandenong Ranges
  • Snow to low levels was occurred across central Victoria, with up to 5 cm reported across the Grampians and Macedon Ranges on the 20th and 21st, and cold front on the 27th produced snow flurries to low levels (around 250 to 350 m) in the Dandenong Ranges, at Kilmore and Ballan, and on the Mornington Peninsula at Arthurs Seat

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Extremes in August 2017
Hottest day 24.3 °C at Lakes Entrance (Eastern Beach Road) on the 15th
Warmest days on average 17.4 °C at Mildura Airport
Coolest days on average -1.0 °C at Mount Hotham
Coldest day -5.4 °C at Mount Hotham on the 27th
Coldest night -10.4 °C at Mount Hotham on the 28th
Coolest nights on average -4.6 °C at Mount Hotham
Warmest nights on average 8.8 °C at Gabo Island Lighthouse
8.8 °C at Wilsons Promontory Lighthouse
Warmest night 13.3 °C at Mildura Airport on the 15th
Warmest on average overall 11.9 °C at Gabo Island Lighthouse
Coolest on average overall -2.9 °C at Mount Hotham
Wettest overall 498.8 mm at Falls Creek (Rocky Valley)
Wettest day 135.0 mm at Falls Creek (Rocky Valley) on the 16th
Strongest wind gust 130 km/h at Wilsons Promontory Lighthouse on the 16th

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 daily rainfall
New record
(mm)
Old
record
Years of
record
Mount Buller 89.8 on the 16th 69.4 on the 23rd in 2013 35



Record highest August total rainfall
New record
(mm)
Old
record
Years of
record
Average for
August
Mount Buller 336.4 333.8 in 1990 35 160.6
Falls Creek 222.8 183.6 in 1996 23 95.1

Highest August total rainfall for at least 20 years
Observed
(mm)
Most recent
higher
Average for
August
Balmoral (Post Office) 161.0 180.1 in 1955* 75.1
Durdidwarrah 95.2 95.4 in 1978* 60.0
Eurobin 216.4 232.4 in 1996 140.2

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




Record lowest August daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
August
Kyabram 8.0 on the 3rd 8.3 on the 8th in 1981 52 14.9
Warracknabeal Museum 8.3 on the 3rd 8.6 on the 6th in 1974 45 15.6
Portland (Cashmore Airport) 9.0 on the 3rd 9.1 on the 23rd in 1997 36 14.0
Bundoora (Latrobe University) 8.5 on the 3rd 8.8 on the 3rd in 1995 35 14.9
Mount Buller -5.1 on the 27th -4.3 on the 1st in 2014 31 2.1
Avalon Airport 8.3 on the 3rd 9.2 on the 10th in 2005 23 15.5
Swan Hill Aerodrome 8.7 on the 3rd 10.4 on the 4th in 2015 21 16.8
Horsham Aerodrome 8.2 on the 3rd 8.5 on the 1st in 2014 20 15.2



Record lowest August temperature
New record
(°C)
Old
record
Years of
record
Average for
August
Mount Hotham -10.4 on the 28th -9.3 on the 12th in 2014 27 -3.4
Mallacoota 0.6 on the 29th 0.7 on the 8th in 2006 25 6.4



Record lowest August mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
August
Cape Nelson Lighthouse 7.8 8.0 in 2008 21 8.7

Lowest August mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
lower
Average for
August
Mortlake Racecourse 3.4 2.9 in 1994 4.8
Sheoaks 4.2 3.7 in 1994 5.3



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
North Mallee (district 76)
Mildura Airport 17.4 +0.1 24.2 14th 4.8 -0.5 -1.6 20th 34.0 25.6 high 133%
Ouyen (Post Office) 16.5 -0.6 22.8 13th 4.8 -0.3 0.0 1st 52.0 32.3 high 161%
Walpeup Research 15.9 -0.5 22.1 14th 4.7 -0.7 -0.6 28th 47.8 34.5 high 139%
South Mallee (district 77)
Hopetoun Airport 15.8 -1.1 21.9 13th 3.0 -0.5 -3.3 28th 47.8 25.4 high 188%
Swan Hill Aerodrome 15.7 -1.1 20.8 14th 3.5 -0.5 -1.3 20th 54.6 28.0 v high 195%
North Wimmera (district 78)
Kellalac (Warracknabeal Airport) 14.9   20.9 14th 3.8   -1.3 20th 51.2
Nhill Aerodrome 14.5 -1.1 21.6 13th 4.5 -0.2 -0.9 28th 82.0 41.3 high 199%
Warracknabeal Museum 14.6 -1.0 21.2 14th 3.6 -0.8 -1.8 20th 51.8 43.3 average 120%
South Wimmera (district 79)
Edenhope Airport 14.1 -0.6 19.2 13th 4.8 -0.6 0.3 19th 90.4 69.6 average 130%
Grampians (Mount William) 5.2 -0.8 13.0 14th 0.4 -0.8 -2.5 20th 228.0 155.8 high 146%
Horsham Aerodrome 14.1 -1.1 20.4 14th 3.1 -0.1 -3.7 20th 67.4 38.9 high 173%
Kanagulk 13.7 -0.6 19.6 14th 3.8 -0.9 -1.7 20th 96.0 66.0 high 145%
Longerenong 14.1 -0.8 20.2 14th 3.4 -0.6 -1.6 20th 57.2 43.4 high 132%
Pyrenees (Ben Nevis) 8.0   15.6 14th 2.2   -0.9 20th 95.4 89.9 high 106%
Stawell Aerodrome 12.9 -1.0 18.2 14th 3.7 -1.0 -2.6 20th 75.0 54.2 high 138%
Lower North (district 80)
Charlton 14.9 -0.8 20.8 14th 3.3 -0.8 -2.7 20th 49.0 35.6 high 138%
Echuca Aerodrome 14.6 -0.7 20.0 14th 3.8 -0.9 -1.3 31st 71.9 42.3 high 170%
Kerang 15.3 -0.8 21.1 14th 4.7 -0.2 -0.4 20th 53.4 37.1 high 144%
Kyabram 14.1 -0.8 18.2 14th 3.5 -0.4 -2.2 31st 63.4 43.0 high 147%
Upper North (district 81)
Bendigo Airport 13.4 -0.8 17.8 13th 3.3 +0.5 -2.3 31st 59.8 51.7 average 116%
Shepparton Airport 13.8 -1.2 18.0 14th 3.5 -0.2 -1.8 29th 65.0 46.6 high 139%
Tatura Inst Sustainable Ag 13.7 -1.0 18.0 13th 3.3 -0.6 -1.8 26th 58.8 47.1 average 125%
Yarrawonga 14.2 -1.1 19.0 14th 3.0 -0.7 -3.0 28th 64.2 40.8 high 157%
Lower Northeast (district 82)
Benalla Airport 13.6 -1.0 18.2 14th 2.8 -0.7 -2.9 28th 84.3 63.5 average 133%
Dartmouth Reservoir 12.2 -1.3 17.8 14th 2.5 -0.3 -2.9 30th 172.8 124.0 high 139%
Hunters Hill 7.9 -1.1 13.4 14th 1.5 -1.1 -2.5 28th 203.2 138.3 high 147%
Rutherglen Research 13.8 -0.2 18.9 14th 1.3 -1.5 -4.9 28th 82.4 60.8 high 136%
Strathbogie 10.7 -0.9 14.4 14th 1.7 -0.6 -3.2 28th 154.8 115.9 high 134%
Wangaratta Aero 13.4 -1.1 18.2 14th 2.5 -0.5 -2.7 28th 87.2 59.4 high 147%
Upper Northeast (district 83)
Falls Creek 0.6 -1.4 4.2 25th -3.7 -1.1 -9.2 28th 222.8 95.1 highest 234%
Mount Buller 0.8 -1.3 4.9 31st -3.2 -0.8 -8.5 28th 336.4 160.6 highest 209%
Mount Hotham -1.0 -1.6 3.3 15th -4.6 -1.2 -10.4 28th
Omeo 11.4 -1.0 16.6 14th 0.7 -0.7 -6.0 29th 71.0 50.5 high 141%
East Gippsland (district 84)
Combienbar AWS 11.9 -0.8 18.8 14th 4.6 -0.6 0.1 28th
Gabo Island Lighthouse 15.1 +0.4 19.4 17th 8.8 +0.3 5.8 19th 57.2 71.4 average 80%
Gelantipy 10.0 -1.2 16.6 14th 2.6 -0.2 -2.4 29th 39.4 53.6 average 74%
Lakes Entrance (Eastern Beach Road) 15.8 -0.3 24.3 15th 6.1 -0.2 1.6 22nd 43.8 57.9 average 76%
Mallacoota 15.5 -0.3 22.3 14th 6.1 -0.3 0.6 29th 129.8 67.6 v high 192%
Mount Nowa Nowa 13.9 -0.4 21.8 14th 6.0 -0.4 0.8 28th 40.4 63.0 low 64%
Orbost 15.7 -0.3 22.6 14th 5.7 -0.4 1.3 21st 35.9 60.4 v low 59%
Point Hicks (Lighthouse) 14.5 -0.5 21.8 14th 8.0 -0.5 4.4 19th 75.6 79.6 average 95%
West Gippsland (district 85)
Bairnsdale Airport 16.1 +0.4 24.1 14th 4.4 -0.1 -1.8 3rd
Corner Inlet (Yanakie) 14.0   20.4 10th 6.1   -0.8 31st 106.8
East Sale Airport 15.1 0.0 22.1 14th 4.1 0.0 -1.5 2nd 44.8 46.2 average 97%
Morwell (Latrobe Valley Airport) 14.5 -0.4 21.2 10th 3.6 -0.8 -2.5 31st 82.6 64.2 high 129%
Mount Baw Baw 1.6 -1.4 8.3 14th -2.4 -1.0 -6.2 31st 198.4 161.3 average 123%
Mount Moornapa 13.7 +0.1 23.3 14th 5.0 -0.6 0.9 28th 44.2 52.8 average 84%
Nilma North (Warragul) 13.3   19.6 14th 4.8   -2.4 31st 133.8
Pound Creek 14.2 -0.4 20.5 10th 6.0 -0.5 -1.9 2nd 111.0 94.4 average 118%
Wilsons Promontory Lighthouse 12.6 -0.2 19.4 10th 8.8 +0.4 5.9 18th 180.2 122.3 high 147%
Yarram Airport 14.5   20.6 14th 4.2   -2.0 31st 65.8 52.1 high 126%
East Central (district 86)
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
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%
Rhyll 14.0 -0.4 18.6 14th 8.2 -0.2 5.5 20th 105.0 77.8 high 135%
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%
Wonthaggi 14.3 -0.2 19.6 10th 6.9 +0.1 2.4 31st 120.4 102.2 high 118%
West Central (district 87)
Avalon Airport 14.8 -0.7 20.9 14th 5.0 -0.6 -0.5 2nd 36.6 42.8 average 86%
Breakwater (Geelong Racecourse) 14.8   20.4 14th 6.3   0.7 2nd 54.0
Laverton RAAF 14.6 -0.3 21.3 14th 5.4 -0.2 -0.1 3rd 49.2 44.1 average 112%
Sheoaks 12.9 -0.5 18.9 14th 4.2 -1.1 -1.4 31st 44.2 43.7 average 101%
North Central (district 88)
Castlemaine Prison 12.6 -0.7 17.0 14th 3.1 -0.5 -2.5 31st 59.4 66.1 average 90%
Eildon Fire Tower 9.7 -0.9 15.0 14th 3.7 -0.6 0.3 20th 99.6 76.3 high 131%
Lake Eildon 13.3 -0.4 19.7 14th 3.9 -0.3 -2.0 28th 106.2 99.0 average 107%
Mangalore Airport 13.4 -0.7 17.2 13th 3.2 -0.7 -2.3 20th 56.6 61.4 average 92%
Maryborough 13.4 -0.5 18.4 14th 3.5 -0.4 -2.1 20th 64.0 56.1 average 114%
Redesdale 13.5 -0.1 16.6 13th 2.3 -0.8 -3.4 20th 45.4 60.1 average 76%
Wallan (Kilmore Gap) 10.3 -0.3 13.7 22nd 3.9 -0.4 0.9 27th 78.2 62.1 high 126%
Western Plains (district 89)
Ararat Prison 13.5 +0.5 21.0 14th 2.9 -1.0 -4.0 20th 98.8 68.4 high 144%
Ballarat Aerodrome 11.4 0.0 15.8 14th 2.6 -1.1 -3.4 20th 62.4 74.1 average 84%
Westmere 12.7 -0.7 18.4 14th 2.8 -1.8 -3.5 20th 63.0 58.0 average 109%
West Coast (district 90)
Aireys Inlet 14.0 -0.4 19.0 14th 7.3 -0.2 3.4 20th 75.0 67.0 average 112%
Cape Nelson Lighthouse 14.0 -0.5 19.4 13th 7.8 -0.9 4.1 20th 126.2 103.4 high 122%
Cape Otway Lighthouse 13.2 -0.6 18.1 13th 8.0 +0.2 4.9 20th 173.8 103.8 v high 167%
Casterton 13.6 -0.7 17.9 14th 4.2 -1.3 -2.0 20th 108.8 83.3 high 131%
Colac (Mount Gellibrand) 12.0 -0.7 16.8 14th 5.1 -0.5 1.4 20th 50.4 60.2 average 84%
Dartmoor 13.9   18.5 14th 4.6   -2.0 20th 123.2
Hamilton Airport 12.8 -0.5 18.1 14th 3.8 -1.0 -1.5 20th 104.0 78.1 high 133%
Mortlake Racecourse 13.9 0.0 18.4 14th 3.4 -1.4 -3.1 20th 71.8 66.0 average 109%
Port Fairy AWS 14.6 -0.5 19.6 13th 6.3 -1.0 0.9 20th 84.2 87.6 average 96%
Portland (Cashmore Airport) 13.5 -0.5 18.0 15th 6.0 -0.7 1.2 31st 142.4 107.8 high 132%
Warrnambool Airport NDB 13.8 -0.6 18.2 13th 4.8 -1.1 -0.9 20th 102.0 94.2 average 108%

Notes

The Monthly 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 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
Enquiries