Victoria in April 2017: above average rainfall; warm nights in the west

April rainfall in Victoria was above average. Overnight temperatures were above average throughout much of the State, while daytime temperatures were mostly close to average.

Above average rainfall for Victoria

  • Averaged across Victoria, rainfall was 51.3% above the long-term April mean of 51.0 mm
  • Rainfall was above average in most of the western and northern parts of the State; large areas of the North and South Mallee Districts, as well as parts of the Lower and Upper North, West and North Central, and Western Plains Districts had rainfall very much above the long-term average for April
  • Below average rainfall was recorded only in a small part of the West Gippsland District
  • A low pressure system and the associated trough brought widespread rainfall to the State on the 9th, 10th and 11th, with daily totals mostly between 20 and 40 mm and locally much higher falls
  • The heaviest rain to 9am on the 10th fell in central Victoria to the west of Melbourne; Durdidwarrah had 100.0 mm, its record highest daily rainfall for April; some other sites also had their highest April daily rainfall on record on this day
  • The slow moving low pressure trough which crossed the State on the 21st and 22nd brought moist air from the north and record highest April daily rainfall to many sites, mostly in the northwest of Victoria; another low pressure trough associated with a strong cold front swept across the State on the 25th and 26th bringing more rainfall
  • The highest daily rainfall total in the State, 103.2 mm, was recorded at Woomelang in Victoria's northwest on the 21st, while the wettest place in the State was Mt Hotham with 201.0 mm during the month
  • Many sites had their record highest April total rainfall or highest April total rainfall since at least 1995

Minimum temperatures above average in the west of Victoria

  • Minimum temperatures were generally above average, while maximum temperatures were mostly close to average across the State
  • For Victoria as a whole the mean maximum temperature was 0.48 °C above the long-term April average, while mean minimum temperature was 0.66 °C above the long-term April average
  • The highest temperature in Victoria during April was 32.1 °C, recorded at Mildura Airport on the 19th
  • However, low maximum and minimum temperatures were recorded on the 9th and 10th, and the 26th and 27th in the cold southerly airstream which followed the passage of cold fronts
  • The lowest minimum temperature in Victoria during the month, -4.9 °C, was recorded at Mt Hotham on the 27th

Strong winds and snow

  • Strong winds were recorded across Victoria during the passage of the low pressure system and the associated trough on the 9th; the strongest wind gust of 120 km/h was recorded at Falls Creek on the same day
  • On the 10th first snowfalls this year were recorded in the Alpine areas of Victoria; some places received about 20 cm of snow cover

Further information

Media
(03) 9669 4057
Enquiries

Extremes in April 2017
Hottest day 32.1 °C at Mildura Airport on the 19th
Warmest days on average 24.4 °C at Mildura Airport
Coolest days on average 8.6 °C at Mount Hotham
Coldest day -0.8 °C at Mount Hotham on the 26th
Coldest night -4.9 °C at Mount Hotham on the 27th
Coolest nights on average 2.3 °C at Mount Hotham
Warmest nights on average 14.2 °C at Wilsons Promontory Lighthouse
Warmest night 19.6 °C at Mildura Airport on the 20th
Warmest on average overall 18.0 °C at Mildura Airport
Coolest on average overall 5.4 °C at Mount Hotham
Wettest overall 201.0 mm at Mount Hotham
Wettest day 103.2 mm at Woomelang on the 21st
Strongest wind gust 120 km/h at Falls Creek on the 9th

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 April daily rainfall
New record
(mm)
Old
record
Years of
record
Echuca Aerodrome 72.0 on the 22nd 59.4 on the 3rd in 1929 135
Durdidwarrah 100.0 on the 10th 73.8 on the 22nd in 2001 127
Longerenong 51.6 on the 21st 48.8 on the 25th in 1918 122
Woomelang 103.2 on the 21st 80.8 on the 5th in 1926 112
Lake Boga 56.6 on the 21st 52.0 on the 10th in 2014 106
Lake Boga (Kunat) 45.0 on the 21st =45.0 on the 10th in 2014 84
Bronzewing 56.4 on the 21st 36.3 on the 22nd in 1970 79
Walpeup Research 56.6 on the 21st 44.2 on the 13th in 1939 79
Vaughan 55.8 on the 10th 45.7 on the 22nd in 1970 59
Eppalock Reservoir 49.2 on the 10th 47.0 on the 8th in 1977 53
Castlemaine Prison 54.5 on the 10th 47.5 on the 22nd in 1970 52
Avalon Airport 57.6 on the 10th 48.0 on the 23rd in 2001 36
Rushworth (Raglus) 57.6 on the 22nd 57.0 on the 10th in 2014 32
Mortlake Racecourse 36.6 on the 25th 33.0 on the 22nd in 2001 23
Newham (Cobaw) 64.8 on the 10th 39.2 on the 14th in 2000 23
Cape Nelson Lighthouse 38.4 on the 21st 26.6 on the 28th in 2007 22
Hopetoun (Wirrbibial Downs) 40.6 on the 21st 26.2 on the 7th in 2010 20



Record highest April total rainfall
New record
(mm)
Old
record
Years of
record
Average for
April
Daylesford 187.0 175.3 in 1939 147 64.4
Echuca Aerodrome 136.2 133.1 in 1929 138 32.9
Woomelang 112.2 112.1 in 1926 112 23.8
Lismore (Post Office) 130.8 128.2 in 1934 99 50.2
Bullengarook East 166.4 164.2 in 2001 65 59.3
Derrinallum (Post Office) 135.0 125.0 in 1980 61 51.2
Castlemaine Prison 141.2 112.2 in 1989 51 41.9
Bundoora (Latrobe University) 145.3 121.4 in 2001 38 57.0
Wallan 116.4 96.6 in 1989 37 49.7
Avalon Airport 113.6 97.4 in 2001 36 38.9
Strath Creek 113.4 99.0 in 1990 35 49.6
Hamilton Airport 96.6 88.0 in 1992 33 40.9
Rushworth (Raglus) 141.2 113.8 in 2014 33 38.3
Bendigo Airport 113.2 101.6 in 2014 26 33.1
Mortlake Racecourse 117.2 75.2 in 2001 23 45.4
Newham (Cobaw) 164.8 88.4 in 1995 22 47.2
Eildon Fire Tower 101.6 91.0 in 1999 21 45.7
Patyah (Booroopki) 61.2 57.9 in 1998 20 28.4

Highest April total rainfall for at least 20 years
Observed
(mm)
Most recent
higher
Average for
April
Berriwillock 71.8 90.9 in 1926* 24.4
Trentham (Post Office) 190.4 238.2 in 1935* 75.6
Heathcote 136.2 204.0 in 1939 42.2
Woodend 165.6 200.7 in 1939* 58.9
Preston Reservoir 141.8 194.7 in 1960* 58.6
Eppalock Reservoir 121.8 130.8 in 1974 38.1
Kaniva 72.0 75.4 in 1974 32.2
Kyabram 115.6 127.0 in 1974 37.9
Longerenong 69.6 118.3 in 1974 29.1
Rochester 114.1 125.3 in 1974 31.2
Stanhope 104.6 141.8 in 1974 34.1
Yea 95.0 170.6 in 1974 49.5
Nagambie (Goulburn Weir) 102.4 216.8 in 1974* 38.1
Raywood 87.4 114.4 in 1974* 30.4
Redesdale 138.4 142.6 in 1974* 41.0
Skipton Post Office 96.8 102.2 in 1974* 48.9
Apsley (Post Office) 64.3 84.0 in 1974* 36.9
Vaughan 107.6 125.7 in 1974* 41.6
Euroa 103.2 190.6 in 1974* 46.4
Melbourne Airport 98.2 118.2 in 1978 44.5
Murchison 110.8 171.7 in 1974* 40.3
Terang 129.6 194.0 in 1980 63.7
Birchip (Woodlands) 80.0 87.0 in 1980* 24.4
Rokewood 115.6 119.6 in 1974* 43.1
Boort 76.5 93.4 in 1974* 27.2
Eberys 92.4 105.6 in 1960* 41.4
Cairn Curran Reservoir 74.0 93.2 in 1989 33.6
Boundary Bend 79.4 83.4 in 1990 25.8
Canary Island 101.0 109.4 in 1989* 25.1
Quambatook South 75.8 127.0 in 1989* 27.1
Wedderburn (Post Office) 95.0 140.2 in 1989* 33.3
Derrinallum (Craigmore) 126.2 127.6 in 1992 46.3
Essendon Airport 108.6 112.4 in 1977* 54.9
Ninyeunook 64.6 124.6 in 1989* 27.6
Wycheproof 72.6 102.0 in 1989* 27.6
Ballarat Aerodrome 101.0 106.2 in 1995 51.3
Cavendish (Post Office) 92.8 107.1 in 1995 48.4
Cobden (Post Office) 102.8 109.0 in 1995 66.5
Lake Eildon 91.8 101.8 in 1995 59.7
Portland (Cashmore Airport) 103.6 114.4 in 1995 59.5
Willaura (Main Street) 66.2 100.8 in 1992* 41.6
Casterton Showgrounds 88.0 94.2 in 1995* 43.8
Coleraine Hospital 93.5 100.9 in 1995* 46.0

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





Summary statistics for April 2017
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
April
2017
Diff
from
average
Highest for
April
2017
Mean for
April
2017
Diff
from
average
Lowest for
April
2017
Total for
April
2017
Average
for
April
Rank of
April
2017
Fraction of
April
average
North Mallee (district 76)
Mildura Airport 24.4 +0.8 32.1 19th 11.6 +1.5 5.8 27th 44.0 19.6 high 224%
Ouyen (Post Office) 23.5 0.0 28.4 7th 11.3 +1.7 5.3 27th 77.3 22.3 v high 347%
Walpeup Research 24.1 +1.2 31.6 8th 11.6 +1.5 5.3 27th 72.0 23.7 v high 304%
South Mallee (district 77)
Hopetoun Airport 23.5 -0.2 31.8 19th 10.2 +1.4 4.2 1st 53.8 22.4 high 240%
Swan Hill Aerodrome 23.3 -0.5 30.5 8th 10.4 +1.4 5.7 27th 67.8 22.0 v high 308%
North Wimmera (district 78)
Kellalac (Warracknabeal Airport) 22.9   31.0 19th 9.5   4.3 27th 59.2
Nhill Aerodrome 22.3 -0.3 30.5 8th 9.7 +0.7 4.3 3rd 41.0 21.0 high 195%
Warracknabeal Museum 22.6 +0.2 30.2 8th 10.0 +1.1 4.5 27th 67.0 26.5 v high 253%
South Wimmera (district 79)
Edenhope Airport 20.8 -0.4 29.8 8th 9.8 +0.9 3.7 3rd 78.4 34.9 v high 225%
Grampians (Mount William) 12.6 +0.3 19.2 7th 6.3 +0.4 -0.3 27th 129.0 78.4 v high 165%
Horsham Aerodrome 22.1 -0.2 30.7 19th 8.2 +1.1 2.4 27th 53.2 26.9 high 198%
Kanagulk 21.0 -0.2 29.5 8th 8.8 +0.3 3.0 15th 68.2 33.6 v high 203%
Longerenong 23.0 +1.5 30.6 8th 9.3 +1.3 3.8 14th 69.6 29.1 v high 239%
Pyrenees (Ben Nevis) 15.9   23.0 19th 8.3   1.9 27th 81.0 50.3 high 161%
Stawell Aerodrome 20.5 -0.2 28.4 8th 9.1 +0.6 3.6 27th 59.0 29.6 high 199%
Lower North (district 80)
Charlton 22.9 -0.1 30.6 8th 9.8 +0.6 4.3 27th 82.8 25.8 v high 321%
Echuca Aerodrome 22.5 +0.2 28.6 8th 10.0 +0.6 4.5 10th 136.2 32.9 highest 414%
Kerang 23.0 +0.2 29.7 8th 10.7 +1.3 5.7 27th 82.8 26.0 v high 318%
Kyabram 22.4 +0.6 28.3 8th 9.9 +1.2 4.9 27th 115.6 37.9 v high 305%
Upper North (district 81)
Bendigo Airport 20.7 -0.6 27.6 8th 9.8 +1.9 4.5 27th 113.2 33.1 highest 342%
Shepparton Airport 22.1 -0.4 27.5 8th 9.2 +0.7 4.0 27th 61.2 35.0 high 175%
Tatura Inst Sustainable Ag 21.7 +0.1 27.8 8th 9.3 +1.0 3.8 27th 79.0 34.8 v high 227%
Yarrawonga 23.1 +0.2 27.8 18th 9.5 +0.5 5.3 30th 50.2 32.1 high 156%
Lower Northeast (district 82)
Benalla Airport 22.0 -0.5 26.6 7th 8.0 -0.2 2.4 15th 71.6 44.4 high 161%
Corryong Airport 22.0 +0.4 25.8 19th 5.5 -0.3 0.6 27th 97.6 52.3 high 187%
Dartmouth Reservoir 20.6 -0.1 24.8 18th 7.1 -0.1 1.6 28th 88.2 59.7 high 148%
Hunters Hill 16.5 +0.1 21.5 19th 8.0 -0.4 0.5 27th 143.8 71.1 high 202%
Rutherglen Research 22.5 +0.6 27.4 18th 6.8 -0.3 1.9 15th 46.4 40.2 average 115%
Strathbogie 18.9 +0.1 23.5 18th 6.0 +0.3 1.0 1st 119.0 65.9 high 181%
Wangaratta Aero 22.1 -0.4 26.1 18th 7.7 +0.8 3.3 15th 61.0 39.1 high 156%
Upper Northeast (district 83)
Falls Creek 9.8 +0.1 14.5 19th 3.2 +0.2 -4.2 27th 136.0 87.7 high 155%
Mount Buller 9.8 -0.1 14.7 19th 3.2 -0.5 -4.1 27th 156.2 105.5 high 148%
Mount Hotham 8.6 +0.3 12.9 18th 2.3 -0.3 -4.9 27th 201.0 108.0 high 186%
Omeo 18.6 0.0 23.5 18th 4.7 -0.8 0.4 6th 51.8 38.5 high 135%
East Gippsland (district 84)
Combienbar AWS 17.9 +0.2 24.8 7th 9.9 +0.3 4.4 27th 32.2 89.3 low 36%
Gabo Island Lighthouse 20.3 +1.1 22.5 18th 13.6 +0.1 10.3 27th 84.0 84.4 average 100%
Gelantipy 16.2 -0.2 21.5 19th 6.7 -0.3 2.7 27th 62.2 61.2 average 102%
Lakes Entrance (Eastern Beach Road) 19.7 -0.6 28.2 8th 10.3 -0.8 6.2 6th 71.8 70.1 average 102%
Mallacoota 20.8 +0.8 26.3 8th 11.9 +0.2 8.2 27th 90.4 94.1 average 96%
Mount Nowa Nowa 19.4 +0.3 25.7 8th 10.6 -0.1 5.1 27th 74.2 85.6 average 87%
Orbost 20.7 -0.2 27.0 8th 10.4 -0.3 7.1 16th 75.6 83.3 average 91%
Point Hicks (Lighthouse) 20.4 +0.6 28.0 8th 12.7 -0.4 8.6 27th 83.1 87.9 average 95%
West Gippsland (district 85)
Bairnsdale Airport 21.3 +0.6 28.0 8th 9.0 +0.3 5.6 3rd 64.2 58.2 average 110%
Corner Inlet (Yanakie) 20.1   29.1 8th 10.3   4.8 3rd 76.2
East Sale Airport 21.0 +0.7 28.2 8th 8.8 +0.2 4.3 30th 51.0 48.5 average 105%
Morwell (Latrobe Valley Airport) 21.0 +0.5 28.8 8th 8.9 +0.2 3.5 27th 47.8 57.4 average 83%
Mount Baw Baw 9.9 +0.2 15.7 20th 3.6 -0.1 -2.4 27th 141.8 142.8 average 99%
Mount Moornapa 19.1 +0.9 27.4 8th 10.0 +0.1 4.7 27th 97.0 85.1 average 114%
Nilma North (Warragul) 20.5   28.0 8th 9.5   4.9 10th 69.4
Pound Creek 20.6 +0.1 28.5 8th 9.5 0.0 1.8 3rd 79.4 61.4 average 129%
Wilsons Promontory Lighthouse 18.3 +1.0 26.3 8th 14.2 +1.5 9.5 27th 86.8 84.1 average 103%
Yarram Airport 20.2   29.2 8th 8.6   3.2 3rd 45.2 46.7 average 97%
East Central (district 86)
Bundoora (Latrobe University) 20.7 +0.2 27.8 8th 10.6 +0.8 5.0 3rd 145.3 57.0 highest 255%
Cerberus 20.4 +0.6 28.1 8th 10.1 +0.1 5.7 3rd 73.2 62.4 average 117%
Coldstream 20.8 +0.3 27.5 8th 8.0 +1.2 1.8 3rd 79.8 61.7 average 129%
Cranbourne Botanic Gardens 20.1 +0.2 27.4 8th 10.7 +0.4 5.9 10th 103.2 70.9 high 146%
Essendon Airport 20.8 +0.7 28.9 8th 11.3 +1.4 7.1 27th 108.6 54.9 high 198%
Ferny Creek 16.7   23.4 8th 10.2   4.7 27th 136.2
Frankston AWS 19.6 +0.3 25.5 20th 12.4 +0.1 8.6 10th
Melbourne (Olympic Park) 20.8   28.1 8th 12.3   8.2 3rd 123.4
Melbourne Airport 20.6 +0.3 28.8 8th 10.9 +0.7 5.5 3rd 98.2 44.5 v high 221%
Moorabbin Airport 20.9 +0.7 28.3 8th 11.4 +0.9 6.0 3rd 94.6 62.5 high 151%
Phillip Island Penguin Reserve 20.5 +0.7 28.0 20th      
Rhyll 20.2 +0.7 26.4 6th 13.1 +0.5 8.8 27th 87.4 59.6 high 147%
Scoresby Research Institute 20.8 +0.8 27.7 8th 10.4 +0.3 5.3 3rd 99.8 67.9 high 147%
Viewbank 21.0 -0.3 28.3 8th 10.5 +0.5 5.6 3rd 118.0 59.7 high 198%
Wonthaggi 20.7 +1.0 28.0 8th 11.2 +0.8 5.9 3rd 95.2 78.6 average 121%
West Central (district 87)
Avalon Airport 20.3 -0.1 30.6 8th 10.6 +1.0 6.7 18th 113.6 38.9 highest 292%
Breakwater (Geelong Racecourse) 20.5   29.9 8th 11.0   6.5 18th 151.2
Laverton RAAF 20.5 +0.3 28.8 8th 11.1 +1.2 6.5 4th 91.0 45.6 v high 200%
Sheoaks 19.4 +0.2 28.2 8th 9.6 +0.8 3.8 3rd 111.6 39.7 v high 281%
North Central (district 88)
Castlemaine Prison 19.7 -0.4 26.0 8th 9.5 +1.9 3.0 27th 141.2 41.9 highest 337%
Eildon Fire Tower 17.9 -0.4 23.9 19th 9.0 -0.2 3.0 27th 101.6 45.7 highest 222%
Lake Eildon 21.3 +0.4 26.2 19th 7.7 -0.2 3.5 15th 91.8 59.7 high 154%
Mangalore Airport 21.5 +0.1 27.9 8th 9.3 +0.7 3.2 1st 78.0 39.3 v high 198%
Maryborough 20.8 +0.2 27.6 8th 8.9 +0.6 2.9 27th 51.0 39.1 average 130%
Redesdale 21.3 +0.7 28.4 8th 8.2 +0.9 2.2 27th 138.4 41.0 v high 338%
Wallan (Kilmore Gap) 17.3 +0.3 24.6 8th 9.7 +0.9 4.1 27th 85.8 56.2 high 153%
Western Plains (district 89)
Ararat Prison 20.7 +1.2 27.5 19th 8.4 +1.1 2.0 18th 80.2 42.6 high 188%
Ballarat Aerodrome 18.1 +0.4 25.6 8th 8.0 +0.5 2.2 15th 101.0 51.3 v high 197%
Westmere 19.8 -0.2 28.3 19th 8.1 +0.5 1.5 15th 91.6 37.5 v high 244%
West Coast (district 90)
Cape Nelson Lighthouse 18.5 +0.3 29.0 7th 12.4 0.0 8.5 15th 78.4 46.4 v high 169%
Cape Otway Lighthouse 18.2 +0.2 27.4 7th 13.0 +1.3 8.5 27th 101.0 71.1 high 142%
Casterton 20.0 -0.4 28.4 7th 9.8 +1.0 4.6 27th 96.2 46.3 v high 208%
Colac (Mount Gellibrand) 18.8 -0.4 28.6 8th 10.7 +0.8 4.7 27th 112.8 43.2 high 261%
Dartmoor 19.9   29.0 7th 9.5   5.1 17th 84.4
Hamilton Airport 19.3 -0.6 27.5 19th 9.4 +1.1 3.9 27th 96.6 40.9 highest 236%
Mortlake Racecourse 20.0 0.0 29.2 19th 9.2 +1.3 1.4 15th 117.2 45.4 highest 258%
Port Fairy AWS 19.0 -0.4 28.6 7th 11.7 +0.9 5.8 15th 69.0 51.4 average 134%
Portland (Cashmore Airport) 18.8 +0.3 27.8 7th 10.5 +0.7 6.3 15th 103.6 59.5 v high 174%
Warrnambool Airport NDB 19.3 -0.7 27.9 19th 10.3 +1.4 3.7 15th 95.2 54.4 high 175%

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 11 am on Monday 1 May 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