Friday, 1 June 2018 - Seasonal Climate Summary for Victoria - Product code IDCKGC26R0
Victoria in autumn 2018: warm with below average rainfall
Victoria had a very warm autumn, with the State's mean temperature the fourth-warmest on record. Rainfall totals for autumn were below average across most of Victoria, with large areas of very much below average rainfall in the north and east of the State.
Below average rainfall
- Rainfall was below average over most of Victoria during autumn, with well below average rainfall in large areas in the north and east of the State
- Averaged across the State rainfall was 39.2% below the autumn average of 156.8 mm; it was the lowest autumn rainfall since 2008
- This autumn was much drier than autumn 2017
- Falls Creek was the wettest place in Victoria during autumn, recording 364.6 mm
- The highest daily rainfall total, 95.0 mm, was recorded at Cann River (East Gippsland) to 9am on the 12 May, when a complex low pressure system brought widespread rainfall to Victoria
Temperatures well above average
- Victoria's mean temperature for autumn was 1.17 °C above average, the fourth-warmest autumn on record (and warmer than autumn 2017)
- Mean daytime temperatures were well above average across Victoria, with many sites (mostly in the north) having their highest autumn mean daily maximum temperature on record
- The State's mean maximum temperature was 1.74 °C above the long-term average for autumn, the second-warmest on record
- Daytime temperatures in April were the second highest on record (monthly anomaly of 3.45 °C); March and May daytime temperatures were also above average, but less extreme
- The highest autumn daytime temperature in Victoria was 39.3 °C, recorded in Mildura on 10 April and in Hopetoun on 11 April during a prolonged heatwave
- The State mean minimum temperature was 0.58 °C above average, about 0.4 °C cooler than in autumn 2017
- The morning of 18 March was very warm across Victoria, with several sites reporting their warmest autumn night on record
- Despite the generally mild autumn, there were some cold nights and cool days scattered through the season
- A pool of cold air followed the passage of a complex low pressure system and brought a significant drop in temperatures across the State on the 10th and 11th of May
- Victoria's lowest maximum and minimum temperatures for autumn were recorded during this event, with Mount Hotham only reaching −2.6 °C on the 10th, and falling to −6.0 °C on the morning of the 11th
Strong winds, fires and snow
- The strongest winds during autumn, associated with the passage of a complex low pressure system, were recorded on 11 May, with gusts of 143 km/h reported at Mount Hotham
- A number of bushfires devastated parts of southwestern Victoria on the 17th and 18th of March; high temperatures and strong winds ahead of the cold front contributed to severe fire weather conditions
- The outbreak of cold air on 26 of March brought the year's first snowfalls to Victorian Alpine areas
- More snow fell across the Alpine region on the 11th and 12th of May, as Antarctic air swept across Victoria following the passage of a complex low pressure system
Further information
- Media
- media@bom.gov.au (03) 9669 4057
- Enquiries
- helpdesk.climate@bom.gov.au
Extremes Maps Records Summaries Important notes the top
Extremes in autumn 2018 | |
---|---|
Hottest day |
39.3 °C at Mildura Airport on 10 Apr 39.3 °C at Hopetoun Airport on 11 Apr |
Warmest days on average | 25.9 °C at Mildura Airport |
Coolest days on average | 10.2 °C at Mount Hotham |
Coldest day | -2.6 °C at Mount Hotham on 10 May |
Coldest night | -6.0 °C at Mount Hotham on 11 May |
Coolest nights on average | 3.5 °C at Mount Hotham |
Warmest nights on average | 13.9 °C at Wilsons Promontory Lighthouse |
Warmest night | 24.2 °C at Kerang on 12 Apr |
Warmest on average overall | 18.4 °C at Mildura Airport |
Coolest on average overall | 6.8 °C at Mount Hotham |
Wettest overall | 364.6 mm at Falls Creek (Rocky Valley) |
Wettest day | 95.0 mm at Cann River on 12 May |
Strongest wind gust |
143 km/h at Mount Hotham on 11 May 143 km/h at Mount Hotham on 12 May |
Extremes Maps Records Summaries Important notes the top
Maps | |||
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Observed | Anomaly | Decile rank | |
Total rainfall |
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Mean daily maximum temperatures |
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Mean daily minimum temperatures |
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Record highest autumn daily rainfall | ||||||
---|---|---|---|---|---|---|
New record (mm) |
Old record |
Years of record |
||||
Mortlake Racecourse | 47.4 | on 11 May | 37.0 | on 6 May 2000 | 24 |
Record lowest autumn total rainfall | |||||
---|---|---|---|---|---|
New record (mm) |
Old record |
Years of record |
Average for autumn |
||
Lake Tyers | 51.8 | 56.3 | in 1972 | 55 | 190.4 |
Mount Nowa Nowa | 74.2 | 75.0 | in 1998 | 23 | 193.5 |
Record highest autumn temperature | ||||||
---|---|---|---|---|---|---|
New record (°C) |
Old record |
Years of record |
Average for autumn |
|||
Mallacoota | 37.2 | on 12 Apr | 34.1 | on 8 Apr 1998 | 26 | 20.0 |
Record lowest autumn daily maximum temperature | ||||||
---|---|---|---|---|---|---|
New record (°C) |
Old record |
Years of record |
Average for autumn |
|||
Castlemaine Prison | 3.5 | on 31 May | 5.4 | on 31 May 1977 | 48 | 20.2 |
Record highest autumn mean daily maximum temperature | |||||
---|---|---|---|---|---|
New record (°C) |
Old record |
Years of record |
Average for autumn |
||
East Sale | 21.8 | = 21.8 | in 2016 | 72 | 20.3 |
Walpeup Research | 25.5 | = 25.5 | in 2016 | 69 | 23.1 |
Ararat Prison | 21.5 | = 21.5 | in 2017 | 48 | 19.7 |
Castlemaine Prison | 21.9 | = 21.9 | in 1971 | 47 | 20.2 |
Point Hicks (Lighthouse) | 21.1 | 21.0 | in 2007 | 46 | 19.7 |
Bairnsdale Airport | 22.2 | 22.1 | in 2016 | 36 | 20.8 |
Wangaratta Aero | 24.5 | = 24.5 | in 2016 | 30 | 22.5 |
Bendigo Airport | 23.4 | 23.1 | in 2016 | 26 | 21.3 |
Falls Creek | 11.5 | 11.4 | in 2002 | 26 | 10.0 |
Mount Moornapa | 20.9 | 20.3 | in 2016 | 24 | 18.5 |
Redesdale | 23.2 | 22.6 | in 2017 | 24 | 20.7 |
Wallan (Kilmore Gap) | 19.0 | = 19.0 | in 2016 | 24 | 17.1 |
Yarrawonga | 25.1 | 24.9 | in 2016 | 24 | 23.0 |
Coldstream | 22.3 | = 22.3 | in 2016 | 23 | 20.8 |
Combienbar AWS | 20.0 | = 20.0 | in 2016 | 23 | 17.9 |
Mount Nowa Nowa | 20.9 | 20.7 | in 2016 | 22 | 19.2 |
Swan Hill Aerodrome | 25.4 | 25.3 | in 2016 | 21 | 23.7 |
Highest autumn mean daily maximum temperature for at least 20 years | |||||
---|---|---|---|---|---|
Observed (°C) |
Most recent higher |
Average for autumn |
|||
Rutherglen Research | 24.8 | 24.9 | in 1923* | 22.1 |
* note: there are gaps in the historical record at this site, so it is possible a higher value has gone unreported
Record highest autumn daily minimum temperature | ||||||
---|---|---|---|---|---|---|
New record (°C) |
Old record |
Years of record |
Average for autumn |
|||
East Sale | 21.0 | on 18 Mar | 20.8 | on 5 Mar 1949 | 73 | 8.8 |
Bairnsdale Airport | 22.1 | on 18 Mar | 21.5 | on 3 Mar 2000 | 38 | 8.9 |
Gelantipy | 21.1 | on 12 Apr | 20.4 | on 13 Mar 1998 | 26 | 7.2 |
Coldstream | 23.5 | on 18 Mar | 20.7 | on 3 Apr 2005 | 24 | 7.4 |
Extremes Maps Records Summaries Important notes the top
Summary statistics for autumn 2018 | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
Mean for autumn 2018 |
Diff from average |
Highest for autumn 2018 |
Mean for autumn 2018 |
Diff from average |
Lowest for autumn 2018 |
Total for autumn 2018 |
Average for autumn |
Rank of autumn 2018 |
Fraction of autumn average |
|||
North Mallee (district 76) | ||||||||||||
Mildura Airport | 25.9 | +2.2 | 39.3 | 10 Apr | 10.9 | +0.4 | 2.4 | 17 May | 21.4 | 63.9 | low | 33% |
Ouyen (Post Office) | 39.0 | 10 Apr | 10.5 | +0.6 | 3.3 | 17 May | 28.7 | 73.1 | low | 39% | ||
Walpeup Research | 25.5 | +2.4 | 38.9 | 11 Apr | 10.7 | +0.3 | 2.6 | 16 May | ||||
South Mallee (district 77) | ||||||||||||
Hopetoun Airport | 25.2 | +1.4 | 39.3 | 11 Apr | 8.8 | -0.4 | 0.1 | 17 May | 27.6 | 61.8 | low | 45% |
Swan Hill Aerodrome | 25.4 | +1.7 | 39.0 | 11 Apr | 9.8 | +0.3 | -0.2 | 26 May | 27.6 | 63.0 | low | 44% |
North Wimmera (district 78) | ||||||||||||
Nhill Aerodrome | 23.2 | +0.5 | 36.8 | 11 Apr | 9.5 | +0.4 | 2.0 | 14 May | 48.6 | 64.9 | average | 75% |
Warracknabeal Museum | 23.8 | +1.3 | 37.2 | 11 Apr | 9.3 | +0.1 | -0.5 | 26 May | 43.9 | 85.6 | low | 51% |
South Wimmera (district 79) | ||||||||||||
Edenhope Airport | 22.1 | +0.9 | 36.1 | 10 Mar | 9.9 | +0.5 | 3.0 | 16 May | 93.8 | 105.8 | average | 89% |
Grampians (Mount William) | 14.3 | +1.5 | 28.8 | 9 Mar | 6.4 | +0.3 | -0.9 | 11 May | 254.6 | 261.3 | average | 97% |
Horsham Aerodrome | 23.1 | +0.8 | 37.0 | 11 Apr | 8.3 | +0.7 | 0.6 | 26 May | 54.2 | 73.1 | average | 74% |
Kanagulk | 22.1 | +0.8 | 36.1 | 10 Mar | 9.1 | +0.3 | 0.8 | 26 May | 102.6 | 104.6 | average | 98% |
Longerenong | 23.3 | +1.6 | 37.0 | 11 Apr | 8.6 | +0.3 | 0.7 | 14 May | 58.0 | 94.6 | low | 61% |
Pyrenees (Ben Nevis) | 17.3 | +1.7 | 31.7 | 10 Mar | 8.5 | +0.5 | 0.4 | 11 May | ||||
Stawell Aerodrome | 21.8 | +1.0 | 34.7 | 10 Mar | 9.5 | +0.7 | 1.6 | 30 May | 74.8 | 88.3 | average | 85% |
Lower North (district 80) | ||||||||||||
Charlton | 24.4 | +1.3 | 38.9 | 11 Apr | 9.0 | -0.5 | -0.2 | 26 May | 53.0 | 78.7 | low | 67% |
Echuca Aerodrome | 24.6 | +2.2 | 38.2 | 11 Apr | 9.7 | +0.1 | 0.1 | 26 May | 44.4 | 103.2 | low | 43% |
Kerang | 25.0 | +2.1 | 39.1 | 11 Apr | 10.6 | +0.9 | 1.2 | 26 May | 34.2 | 88.6 | low | 39% |
Kyabram | 24.2 | +2.3 | 36.7 | 11 Mar | 9.6 | +0.5 | 1.3 | 17 May | 50.8 | 108.2 | low | 47% |
Upper North (district 81) | ||||||||||||
Bendigo Airport | 23.4 | +2.1 | 35.0 | 11 Mar | 9.0 | +0.7 | 1.1 | 19 May | 70.0 | 107.5 | low | 65% |
Shepparton Airport | 24.0 | +1.5 | 35.8 | 11 Mar | 9.3 | +0.5 | 1.3 | 14 May | 52.6 | 98.4 | low | 53% |
Tatura Inst Sustainable Ag | 23.3 | +1.6 | 35.4 | 11 Mar | 9.3 | +0.6 | 1.1 | 26 May | 52.2 | 112.6 | low | 46% |
Yarrawonga | 25.1 | +2.1 | 36.7 | 11 Apr | 9.5 | +0.2 | 0.5 | 17 May | 51.4 | 101.5 | low | 51% |
Lower Northeast (district 82) | ||||||||||||
Benalla Airport | 24.1 | +1.6 | 35.2 | 11 Mar | 8.2 | -0.5 | -0.8 | 17 May | 59.4 | 145.9 | v low | 41% |
Dartmouth Reservoir | 22.0 | +1.2 | 32.5 | 11 Mar | 7.6 | 0.0 | 0.6 | 17 May | 157.8 | 203.5 | average | 78% |
Hunters Hill | 18.6 | +1.9 | 28.6 | 11 Mar | 9.4 | +0.9 | -0.4 | 11 May | 179.2 | 231.8 | average | 77% |
Rutherglen Research | 24.8 | +2.7 | 35.5 | 11 Apr | 7.3 | -0.1 | -2.1 | 17 May | 63.6 | 130.4 | low | 49% |
Strathbogie | 20.6 | +1.5 | 32.5 | 11 Mar | 6.2 | 0.0 | -1.1 | 15 May | 132.0 | 217.8 | low | 61% |
Wangaratta Aero | 24.5 | +2.0 | 35.9 | 11 Mar | 6.9 | -0.5 | -2.2 | 17 May | ||||
Upper Northeast (district 83) | ||||||||||||
Falls Creek | 11.5 | +1.5 | 21.1 | 9 Mar | 4.2 | +0.9 | -5.2 | 11 May | 235.2 | 282.6 | average | 83% |
Mount Buller | 11.6 | +1.5 | 21.5 | 11 Mar | 4.5 | +0.7 | -5.1 | 11 May | 335.2 | 321.1 | average | 104% |
Mount Hotham | 10.2 | +1.5 | 20.0 | 11 Mar | 3.5 | +0.7 | -6.0 | 11 May | ||||
Omeo | 20.8 | +1.9 | 32.4 | 10 Mar | 5.9 | +0.2 | -1.5 | 26 May | ||||
East Gippsland (district 84) | ||||||||||||
Combienbar AWS | 20.0 | +2.1 | 31.4 | 18 Mar | 10.5 | +0.7 | 2.2 | 11 May | 87.2 | 222.9 | v low | 39% |
Gabo Island Lighthouse | 20.4 | +1.4 | 36.5 | 12 Apr | 7.6 | 11 May | 78.0 | 254.9 | v low | 31% | ||
Lakes Entrance (Eastern Beach Road) | 20.7 | +0.3 | 34.4 | 12 Apr | 11.2 | +0.1 | 3.4 | 26 May | 48.8 | 158.3 | v low | 31% |
Mallacoota | 21.4 | +1.4 | 37.2 | 12 Apr | 11.9 | +0.1 | 4.6 | 1 May | 79.8 | 248.0 | v low | 32% |
Mount Nowa Nowa | 20.9 | +1.7 | 32.8 | 17 Mar | 11.3 | +0.5 | 3.1 | 11 May | 74.2 | 193.5 | lowest | 38% |
Orbost | 22.6 | +1.7 | 36.4 | 18 Mar | 11.0 | +0.2 | 3.8 | 11 May | 51.0 | 182.9 | v low | 28% |
Point Hicks (Lighthouse) | 21.1 | +1.4 | 35.4 | 12 Apr | 6.4 | 12 May | 113.7 | 246.3 | v low | 46% | ||
West Gippsland (district 85) | ||||||||||||
Bairnsdale Airport | 22.2 | +1.4 | 34.2 | 12 Apr | 9.2 | +0.3 | 0.8 | 26 May | 56.8 | 145.5 | v low | 39% |
Corner Inlet (Yanakie) | 19.8 | 33.5 | 17 Mar | 11.0 | 2.1 | 26 May | 203.6 | |||||
East Sale | 21.8 | +1.5 | 32.3 | 17 Mar | 9.4 | +0.6 | 0.5 | 26 May | 57.2 | 147.1 | v low | 39% |
East Sale Airport | 22.1 | 33.7 | 11 Mar | 9.7 | 1.2 | 26 May | 63.6 | |||||
Morwell (Latrobe Valley Airport) | 21.9 | +1.3 | 34.8 | 10 Mar | 9.2 | +0.4 | 0.3 | 26 May | 101.8 | 158.0 | low | 64% |
Mount Baw Baw | 11.1 | +1.0 | 21.4 | 10 Mar | 4.3 | +0.4 | -3.7 | 11 May | ||||
Mount Moornapa | 20.9 | +2.4 | 35.3 | 17 Mar | 10.3 | +0.3 | 3.4 | 11 May | 81.2 | 186.0 | low | 44% |
Nilma North (Warragul) | 21.1 | 34.7 | 10 Mar | 9.7 | 0.2 | 26 May | 169.0 | |||||
Pound Creek | 20.8 | +0.4 | 33.1 | 17 Mar | 10.2 | +0.4 | 0.8 | 14 May | 227.2 | 212.3 | average | 107% |
Wilsons Promontory Lighthouse | 18.2 | +1.0 | 29.2 | 17 Mar | 13.9 | +1.2 | 7.6 | 11 May | 236.2 | 267.2 | average | 88% |
Yarram Airport | 21.4 | +0.9 | 34.4 | 17 Mar | 9.5 | +0.4 | 0.6 | 26 May | 80.4 | 143.7 | low | 56% |
East Central (district 86) | ||||||||||||
Cerberus | 20.7 | +0.9 | 34.4 | 10 Mar | 10.6 | +0.3 | 1.6 | 26 May | 147.8 | 175.7 | average | 84% |
Coldstream | 22.3 | +1.5 | 35.0 | 10 Mar | 7.9 | +0.5 | -0.1 | 1 May | ||||
Cranbourne Botanic Gardens | 21.3 | +1.3 | 34.6 | 10 Mar | 10.6 | +0.2 | 4.3 | 26 May | 153.0 | 180.5 | average | 85% |
Essendon Airport | 22.1 | +1.9 | 36.3 | 10 Mar | 11.4 | +1.3 | 3.0 | 26 May | 92.4 | 142.0 | low | 65% |
Ferny Creek | 18.1 | 31.4 | 10 Mar | 10.2 | 3.0 | 11 May | 258.4 | |||||
Frankston AWS | 20.0 | +0.7 | 33.6 | 10 Mar | 12.8 | +0.3 | 6.4 | 26 May | ||||
Melbourne (Olympic Park) | 21.5 | 35.1 | 10 Mar | 12.5 | 5.2 | 26 May | 105.0 | |||||
Melbourne Airport | 22.0 | +1.6 | 36.0 | 10 Mar | 10.7 | +0.3 | 2.6 | 26 May | 93.4 | 120.0 | average | 78% |
Moorabbin Airport | 21.3 | +1.0 | 34.5 | 10 Mar | 11.6 | +0.9 | 3.4 | 26 May | 106.0 | 174.3 | v low | 61% |
Rhyll | 20.2 | +0.7 | 31.3 | 10 Mar | 13.2 | +0.5 | 7.8 | 11 May | 156.8 | 171.7 | average | 91% |
Scoresby Research Institute | 21.9 | +1.7 | 35.3 | 10 Mar | 10.4 | +0.1 | 2.3 | 26 May | 120.6 | 209.5 | v low | 58% |
Viewbank | 22.4 | +1.1 | 35.5 | 10 Mar | 10.7 | +0.4 | 2.9 | 18 Apr | 119.6 | 150.0 | low | 80% |
Wonthaggi | 20.5 | +0.8 | 33.9 | 10 Mar | 11.4 | +0.9 | 3.8 | 14 May | 232.6 | 237.6 | average | 98% |
West Central (district 87) | ||||||||||||
Avalon Airport | 22.0 | +1.3 | 35.3 | 17 Mar | 10.6 | +0.6 | 2.1 | 26 May | 89.4 | 100.2 | average | 89% |
Breakwater (Geelong Racecourse) | 21.6 | 34.8 | 17 Mar | 11.1 | 2.4 | 26 May | 87.8 | |||||
Laverton RAAF | 21.5 | +1.2 | 34.5 | 3 Mar | 11.2 | +1.1 | 2.1 | 26 May | 79.2 | 125.5 | low | 63% |
Sheoaks | 20.6 | +1.3 | 35.2 | 10 Mar | 9.5 | +0.4 | 1.3 | 26 May | 106.2 | 97.9 | high | 108% |
North Central (district 88) | ||||||||||||
Castlemaine Prison | 21.9 | +1.7 | 34.2 | 9 Mar | 8.7 | +0.7 | 1.5 | 19 May | 133.7 | 131.6 | average | 102% |
Eildon Fire Tower | 19.5 | +1.2 | 30.8 | 11 Mar | 9.7 | +0.5 | 2.1 | 11 May | 121.0 | 137.6 | average | 88% |
Lake Eildon | 22.8 | +1.9 | 34.0 | 11 Mar | 8.1 | -0.1 | 0.6 | 17 May | 152.4 | 190.1 | average | 80% |
Mangalore Airport | 23.1 | +1.6 | 35.1 | 11 Mar | 9.1 | +0.1 | -0.7 | 17 May | 94.4 | 127.2 | low | 74% |
Maryborough | 22.3 | +1.5 | 35.7 | 11 Apr | 9.4 | +0.9 | 2.2 | 26 May | 91.2 | 118.7 | average | 77% |
Redesdale | 23.2 | +2.5 | 36.0 | 11 Mar | 7.6 | -0.2 | 0.2 | 19 May | 106.2 | 129.3 | average | 82% |
Wallan (Kilmore Gap) | 19.0 | +1.9 | 31.4 | 10 Mar | 9.6 | +0.7 | 3.5 | 11 May | 158.0 | 156.0 | average | 101% |
Western Plains (district 89) | ||||||||||||
Ararat Prison | 21.5 | +1.8 | 34.0 | 10 Mar | 7.6 | +0.1 | 0.0 | 18 Apr | 114.8 | 126.4 | average | 91% |
Ballarat Aerodrome | 19.7 | +1.8 | 32.6 | 10 Mar | 8.2 | +0.5 | 0.6 | 30 May | 130.0 | 157.5 | average | 83% |
Westmere | 21.0 | +0.7 | 35.3 | 10 Mar | 8.2 | +0.1 | -0.9 | 26 May | 103.4 | 108.0 | average | 96% |
West Coast (district 90) | ||||||||||||
Cape Nelson Lighthouse | 18.9 | +0.7 | 33.8 | 17 Mar | 12.7 | +0.3 | 7.1 | 26 May | 129.2 | 154.0 | low | 84% |
Cape Otway Lighthouse | 18.6 | +0.6 | 33.4 | 17 Mar | 12.7 | +1.0 | 6.4 | 26 May | 222.2 | 217.4 | average | 102% |
Casterton | 21.7 | +1.2 | 36.8 | 10 Mar | 9.5 | +0.4 | 0.6 | 31 May | 131.4 | 145.9 | average | 90% |
Colac (Mount Gellibrand) | 19.9 | +0.8 | 35.0 | 10 Mar | 10.2 | +0.3 | 3.0 | 30 May | 118.0 | 114.3 | average | 103% |
Dartmoor | 20.9 | 36.7 | 10 Mar | 10.1 | 2.1 | 29 Apr | 153.2 | 178.7 | low | 86% | ||
Hamilton Airport | 20.6 | +0.7 | 35.3 | 10 Mar | 9.4 | +1.0 | 2.0 | 26 May | 128.4 | 128.9 | average | 100% |
Mortlake Racecourse | 21.5 | +1.4 | 37.7 | 10 Mar | 8.7 | +0.5 | 0.6 | 18 Apr | 148.6 | 130.3 | high | 114% |
Port Fairy AWS | 19.8 | +0.5 | 34.5 | 17 Mar | 11.7 | +0.7 | 4.6 | 26 May | 151.8 | 157.8 | average | 96% |
Portland (Cashmore Airport) | 19.2 | +0.7 | 34.6 | 10 Mar | 10.6 | +0.6 | 1.4 | 26 May | 225.4 | 190.0 | high | 119% |
Warrnambool Airport NDB | 20.7 | +0.8 | 36.6 | 10 Mar | 10.0 | +0.9 | 2.5 | 26 May | 162.2 | 174.4 | average | 93% |
Extremes Maps Records Summaries Important notes the top
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 10 am on Friday 1 June 2018. 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
- media@bom.gov.au (03) 9669 4057
- Enquiries
- helpdesk.climate@bom.gov.au
Unless otherwise noted, all maps, graphs and diagrams in this page are licensed under the Creative Commons Attribution 4.0 International Licence