Victoria in April 2015: rain in the east, mostly cool

For much of Victoria, April rainfall was close to or below the long-term average.  Some rain into the northwest around the middle of the month gave above-average totals there. There was heavy rain in the far east of Victoria on the 7th and 8th, with a few sites having their wettest April day on record, including Tubbut with 61 mm and Combienbar with 102 mm. There was also moderate to heavy rain into northeast highlands on 18th, including an April record 97 mm at Falls Creek. This rain ensured the east of the State had above-average totals overall, and several sites had their wettest April on record, including Point Hicks with 249 mm, almost 3 times the monthly average.

Daytime maximum temperatures were below average across Victoria, although by less than a degree through the central corridor of the State. Some areas in the far west were well below average. A shot of cold air affected the State on the 6th and 7th, giving Hamilton Airport a new record low April daily maximum of 11.3 C on the 6th. The statewide mean maximum temperature was 1.06 C below the April average of 20.13 C.

Overnight minimum temperatures were below average in the west but a little above average in the northeast. The statewide mean minimum temperature was 0.35 C below the April average of 8.92 C.

  • Wet in the far east
  • Wet in the northwest
  • Cool days overall
  • Nights cool in the west, mild in the east

Further information

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Extremes in April 2015
Hottest day 33.1 C at Mildura Airport on the 1st
Warmest days on average 22.3 C at Kerang
22.3 C at Swan Hill Aerodrome
Coolest days on average 7.1 C at Mount Hotham
Coldest day -1.0 C at Mount Hotham on the 19th
Coldest night -4.8 C at Mount Hotham on the 20th
Coolest nights on average 1.7 C at Mount Hotham
Warmest nights on average 13.5 C at Gabo Island Lighthouse
Warmest night 18.6 C at Rutherglen Research on the 2nd
Warmest on average overall 16.4 C at Gabo Island Lighthouse
Coolest on average overall 4.4 C at Mount Hotham
Wettest overall

340.2 mm at Combienbar

Driest overall 0 mm at Glenburn (Highwood TBRG)
0.4 mm at Goulburn River @ Seymour
Wettest day 136.4 mm at Weeragua (Cann River (East Branch) at Ch on the 23rd
Strongest wind gust 126 km/h at Mount Hotham on the 8th

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
Tubbut 61.0 on the 8th 55.0 on the 21st in 1990 73
Edi Upper 59.0 on the 18th 57.6 on the 13th in 1998 30
Falls Creek 97.4 on the 18th 79.0 on the 25th in 2010 22
Combienbar AWS 101.8 on the 8th 77.0 on the 22nd in 2002 21
Gelantipy 72.6 on the 8th 63.0 on the 21st in 2002 21
Mount Hotham 92.2 on the 18th 77.0 on the 13th in 1998 21



Record highest April total rainfall
New record (mm) Old record Years of
record
Average for
April
Point Hicks (Lighthouse) 249.5 239.9 in 2001 53 88.7
Cann River 293.6 244.4 in 1978 40 97.0
Nicholson Winery 201.0 182.6 in 1990 30 66.8
Combienbar AWS 295.8 250.4 in 2014 21 95.2
Gelantipy 168.6 148.6 in 2002 21 62.7
Mount Hotham 247.6 216.2 in 2010 21 104.4
Maffra 124.8 124.6 in 2002 20 45.5

Highest April total rainfall for at least 20 years
Observed (mm) Most recent
higher
Years since
higher
Average for
April
Bonang 225.2 286.0 in 1948* 66 70.4
Eldorado 111.0 137.4 in 1974 41 46.1
Lindsay Point 60.0 131.8 in 1980 35 21.3
Mildura Airport 85.4 110.6 in 1980 35 19.4
Cabbage Tree Creek 289.8 414.0 in 1978* 32 92.5
Werrimull 65.8 67.0 in 1980* 31 18.4
Genoa (Fools Haven) 304.6 382.4 in 1989 26 98.3
Dartmouth Reservoir 122.7 161.8 in 1990 25 60.0
Gabo Island Lighthouse 201.2 412.6 in 1989* 25 84.8
Harrietville 150.1 182.4 in 1989* 25 89.7
Mallacoota 312.4 440.4 in 1989* 25 96.1
Dederang 130.0 157.8 in 1989* 24 61.6
Dargo 135.6 232.4 in 1990* 22 55.5
Mount Tamboritha 178.0 361.2 in 1990* 20 92.9

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




Lowest April total rainfall for at least 20 years
Observed (mm) Most recent
lower
Years since
lower
Average for
April
Toorourrong Reservoir (Toorourrong) 3.4 0.0 in 1923 92 64.0
Warburton (O'Shannassy Reservoir (Quarte 14.0 0.0 in 1923 92 102.0
Kinglake West (Wallaby Creek) 13.8 0.0 in 1923* 91 93.3
Preston Reservoir 9.4 0.3 in 1923* 91 57.3
Falls Creek (Rocky Valley) 16.6 16.2 in 1967* 47 137.4
Bridgewater (Post Office) 2.6 0.6 in 1981 34 29.0
Glenthompson 7.4 5.8 in 1993* 20 45.3

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




Record lowest April daily maximum temperature
New record (C) Old record Years of
record
Average for
April
Hamilton Airport 11.3 on the 6th 11.4 on the 17th in 1996 31 19.9



Summary statistics for April 2015
Maximum temperatures
(C)
Minimum temperatures
(C)
Rainfall
(millimetres)
Mean for
April
2015
Diff
from
average
Highest for
April
2015
Mean for
April
2015
Diff
from
average
Lowest for
April
2015
Total for
April
2015
Average
for
April
Rank of
April
2015
Fraction of
April
average
North Mallee (district 76)
Mildura Airport 22.1 -1.5 33.1 1st 9.7 -0.4 5.6 20th 85.4 19.4 v high 440%
Ouyen (Post Office) 22.1 -1.4 32.6 1st 9.4 -0.1 5.4 20th 37.3 21.9 high 170%
Walpeup Research 21.3 -1.6 31.2 1st 9.4 -0.7 4.3 20th 43.4 23.3 high 186%
South Mallee (district 77)
Hopetoun Airport 22.0 -1.8 31.9 1st 9.0 +0.3 4.0 20th 21.2 21.5 average 99%
Swan Hill Aerodrome 22.3 -1.5 32.4 1st 8.9 0.0 5.0 20th 24.6 20.0 average 123%
North Wimmera (district 78)
Nhill Aerodrome 20.2 -2.6 30.9 1st 7.5 -1.5 1.4 20th 16.0 20.6 average 78%
Warracknabeal Museum 20.8 -1.6 31.0 1st 8.3 -0.6 3.0 20th 18.7 26.0 average 72%
South Wimmera (district 79)
Edenhope Airport 19.1 -2.2 30.1 1st 7.0 -2.0 0.5 20th 32.2 31.6 average 102%
Grampians (Mount William) 10.6   20.4 1st 4.0   0.1 19th 63.8 78.9 average 81%
Horsham Aerodrome 20.3 -2.0 30.9 1st 6.4 -0.7 0.6 20th 15.0 26.5 average 57%
Kanagulk 19.1 -2.2 30.9 1st 7.4 -1.1 2.4 25th 29.6 31.1 average 95%
Longerenong 20.3 -1.2 30.8 1st 7.0 -1.0 1.5 20th 16.6 28.9 average 57%
Pyrenees (Ben Nevis) 13.5   23.5 1st 6.4   2.3 19th 59.6
Stawell Aerodrome 18.5 -2.3 29.2 1st 8.2 -0.2 3.7 25th 24.2 29.1 average 83%
Lower North (district 80)
Charlton 21.6 -1.4 31.4 1st 8.5 -0.6 2.6 20th 17.6 22.3 average 79%
Echuca Aerodrome 21.9 -0.4 31.4 1st 9.3 -0.1 4.5 28th 31.7 32.2 average 98%
Kerang 22.3 -0.5 32.6 15th 9.4 0.0 5.7 28th 24.6 25.6 average 96%
Kyabram 21.8 +0.1 31.3 1st 9.2 +0.5 4.3 29th 29.8 36.7 average 81%
Upper North (district 81)
Bendigo Airport 20.6 -0.7 29.5 1st 8.5 +0.7 3.1 6th 28.2 30.5 average 92%
Shepparton Airport 21.4 -1.0 31.3 1st 9.2 +0.8 4.1 29th 40.8 34.4 average 119%
Tatura Inst Sustainable Ag 20.8 -0.7 30.8 1st 9.3 +1.0 3.9 29th 28.0 34.4 average 81%
Yarrawonga 22.2 -0.6 30.4 1st 9.5 +0.6 3.7 3rd 74.4 31.6 high 235%
Lower Northeast (district 82)
Benalla Airport 21.7   29.5 1st 9.1   3.9 6th 74.0
Corryong Airport 21.0   28.2 2nd 7.4   0.4 29th 69.4 51.5 average 135%
Dartmouth Reservoir 19.6 -1.1 26.8 2nd 9.1 +2.0 1.5 27th 122.7 60.0 high 205%
Hunters Hill 15.9 -0.4 23.0 1st 8.2 -0.1 2.3 20th 116.2 70.0 high 166%
Rutherglen Research 22.2 +0.3 29.8 1st 7.4 +0.3 -0.3 3rd 44.0 40.5 average 109%
Strathbogie 18.3 -0.5 26.3 1st 6.2 +0.6 0.9 30th 62.0 65.7 average 94%
Wangaratta Aero 21.7 -0.7 29.1 1st 8.5 +1.6 2.6 29th
Upper Northeast (district 83)
Falls Creek 8.5 -1.2 14.0 16th 2.6 -0.4 -3.9 20th 189.2 87.0 v high 217%
Mount Buller 8.9 -0.9 14.8 1st 2.8 -0.8 -4.1 20th 131.0 105.8 average 124%
Mount Hotham 7.1 -1.2 13.6 3rd 1.7 -0.8 -4.8 20th 247.6 104.4 highest 237%
Omeo 16.4 -2.2 25.5 1st 6.3 +0.9 0.1 29th 106.6 39.8 v high 268%
East Gippsland (district 84)
Combienbar AWS 15.6 -2.0 27.3 1st 9.1 -0.5 4.4 20th 295.8 95.2 highest 311%
Gabo Island Lighthouse 19.2 0.0 24.0 1st 13.5 0.0 9.7 20th 201.2 84.8 v high 237%
Gelantipy 14.0 -2.4 23.3 1st 7.4 +0.4 2.1 29th 168.6 62.7 highest 269%
Lakes Entrance (Eastern Beach Road) 18.8   29.9 1st 11.1   5.3 30th 127.2
Mallacoota 19.1 -0.8 27.8 1st 12.3 +0.7 7.7 30th 312.4 96.1 v high 325%
Mount Nowa Nowa 16.8 -2.4 27.5 1st 10.0 -0.7 4.8 20th 225.0 89.7 v high 251%
Orbost 18.8 -2.1 30.9 1st 10.8 +0.1 5.4 30th 186.4 87.7 v high 213%
Point Hicks (Lighthouse) 18.7 -1.1 28.8 1st 12.6 -0.5 9.0 20th 249.5 88.7 highest 281%
West Gippsland (district 85)
Bairnsdale Airport 19.0 -1.7 31.3 1st 9.3 +0.7 3.9 3rd 145.8 58.9 v high 248%
Corner Inlet (Yanakie) 19.7   29.7 1st 9.5   3.3 13th 21.2
East Sale Airport 18.8 -1.5 29.8 1st 9.1 +0.5 2.8 21st 100.8 48.8 v high 207%
Morwell (Latrobe Valley Airport) 19.3 -1.2 29.1 1st 8.1 -0.6 -0.1 21st 49.6 58.5 average 85%
Mount Baw Baw 8.3 -1.4 15.9 1st 2.8 -0.9 -2.5 20th 187.8 147.2 average 128%
Mount Moornapa 16.5 -1.7 29.8 1st 8.9 -1.0 4.4 20th 215.0 86.4 v high 249%
Pound Creek 19.4   28.5 1st 8.1   0.8 13th 31.0
Willow Grove (Blue Rock Reservoir) 18.0 -1.7 28.0 1st 8.1 -1.4 3.1 6th 75.5 59.7 high 126%
Wilsons Promontory Lighthouse 16.9 -0.4 27.2 1st 13.1 +0.4 10.6 19th 30.2 84.4 low 36%
Yarram Airport 18.8   30.2 1st 8.5   1.1 21st 53.4
East Central (district 86)
Bundoora (Latrobe University) 19.1 -1.4 30.1 1st 9.1 -0.7 3.5 30th 63.7 54.7 average 116%
Cerberus 18.7 -1.0 27.6 15th 8.9 -1.1 1.8 13th 36.0 63.2 average 57%
Coldstream 19.8 -0.6 30.6 1st 6.6 -0.2 0.1 3rd 58.6 60.9 average 96%
Cranbourne Botanic Gardens 19.2 -0.7 28.9 1st 9.3 -1.0 3.9 21st 53.3 70.6 average 75%
Essendon Airport 19.5 -0.6 29.9 1st 9.3 -0.6 3.7 30th 46.8 54.4 average 86%
Ferny Creek 15.4   24.5 1st 8.2   4.9 20th 109.4
Frankston AWS 18.2 -1.0 25.2 1st 11.2 -1.1 7.4 20th
Melbourne (Olympic Park) 19.2   29.0 1st 10.6   6.4 30th 36.8
Melbourne Airport 19.4 -0.9 30.8 1st 8.9 -1.3 3.9 21st 40.2 43.6 average 92%
Moorabbin Airport 19.3 -0.8 30.3 1st 9.5 -0.9 3.9 21st 49.0 62.2 average 79%
Rhyll 18.9 -0.6 26.3 15th 11.8 -0.8 8.5 19th 43.8 59.3 average 74%
Scoresby Research Institute 19.6 -0.4 29.6 1st 8.6 -1.5 2.7 20th 52.8 67.5 average 78%
Viewbank 19.7 -1.6 29.9 1st 9.0 -1.0 3.5 30th 44.0 56.6 average 78%
Wonthaggi 19.0 -0.7 27.4 15th 10.3 -0.1 5.8 13th 47.4 78.7 average 60%
West Central (district 87)
Avalon Airport 19.3 -1.0 32.1 1st 9.1 -0.5 3.8 13th 49.4 37.2 high 133%
Breakwater (Geelong Racecourse) 18.7   29.6 1st 10.0   4.3 13th  
Laverton RAAF 19.2 -1.0 31.0 1st 9.6 -0.3 4.1 30th 34.2 45.2 average 76%
Sheoaks 17.8 -1.4 28.1 1st 7.8 -0.9 1.7 13th 42.6 37.7 high 113%
North Central (district 88)
Castlemaine Prison 18.9 -1.2 27.8 1st 8.1 +0.6 1.4 20th 21.6 40.3 average 54%
Eildon Fire Tower 17.4 -0.8 26.3 1st 8.2 -1.0 4.0 20th 56.8 43.7 average 130%
Lake Eildon 20.4 -0.4 27.8 1st 7.2 -0.7 2.1 3rd 53.6 59.6 average 90%
Mangalore Airport 20.6 -0.8 30.5 1st 9.4 +0.8 3.9 6th 34.0 38.9 average 87%
Maryborough 19.7 -0.9 28.9 1st 8.3 0.0 2.9 13th 32.8 39.2 average 84%
Redesdale 20.6 +0.1 29.7 1st 7.8 +0.6 1.3 13th 18.0 40.2 average 45%
Wallan (Kilmore Gap) 16.2 -0.7 25.7 1st 7.8 -1.0 3.8 20th 47.4 55.3 average 86%
Western Plains (district 89)
Ararat Prison 18.3 -1.2 28.5 1st 6.8 -0.4 2.1 30th 35.8 42.3 average 85%
Ballarat Aerodrome 16.9 -0.8 26.0 1st 6.8 -0.7 1.7 20th 32.8 51.2 average 64%
Westmere 18.1   28.6 1st 6.6   -1.5 13th 23.0 34.4 low 67%
West Coast (district 90)
Aireys Inlet 18.0 -1.0 29.7 1st 11.2 -0.4 7.3 19th 52.2 51.1 average 102%
Cape Nelson Lighthouse 16.7 -1.5 28.4 1st 12.0 -0.3 7.5 17th 37.4 45.9 average 81%
Cape Otway Lighthouse 16.7 -1.3 29.4 1st 11.7 +0.1 7.0 30th 47.4 71.1 low 67%
Casterton 17.9 -2.7 29.3 1st 6.7 -2.2 0.4 20th 47.4 42.8 average 111%
Colac (Mount Gellibrand) 17.2 -2.0 28.2 1st 8.8 -1.1 5.3 20th 21.2 40.2 low 53%
Dartmoor 17.6   29.6 1st 7.5   1.4 20th 46.2
Hamilton Airport 17.6 -2.3 29.1 1st 7.1 -1.2 1.6 20th 33.0 39.1 average 84%
Mortlake Racecourse 18.1 -1.9 28.7 1st 6.9 -0.9 -0.7 13th 23.6 42.4 low 56%
Port Fairy AWS 17.6 -1.8 29.3 1st 11.0 +0.2 4.3 30th 29.2 51.8 low 56%
Portland (Cashmore Airport) 16.8 -1.7 28.7 1st 9.7 -0.1 5.8 13th 61.2 58.8 average 104%
Warrnambool Airport NDB 17.6 -2.5 28.2 1st 8.6 -0.2 1.5 13th 42.0 53.1 average 79%

Notes

A Monthly Climate Summary is prepared to list 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. Later information, including data that has had greater opportunity for quality control, will be presented in the Monthly Weather Review, usually published in the fourth week of the month.

A Climate Summary is generally published on the first working day of each month.

This statement has been prepared based on information available at 10 am on Friday 1 May 2015. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

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.

The ACORN-SAT dataset is used for temperature area averages.

Further information

Media
(03) 9669 4057
Enquiries