Victoria in April 2021: drier than average

April was drier than average for most of the state, with large parts of northern Victoria very much drier than average. Night-time temperatures were below average across most of northern Victoria and above average along parts of the coast. Daytime temperatures generally tended to be close to average.

Drier than average

  • April was drier than average for most of the state, with large parts of northern Victoria very much drier than average.
  • Most of the state's north had less than 20% of the monthly average rainfall for April.
  • Mildura Airport did not record any rainfall this month.
  • Averaged across the state, total monthly rainfall was 64% below the long-term mean of 51 mm.
  • Cold fronts brought moderate to locally heavy falls to southern parts of the state on the 11th and to central and eastern Victoria on the 21st.
  • The highest daily rainfall total in Victoria was 59.0 mm, recorded at Ferny Creek on the 11th.
  • The state's wettest place this April was also Ferny Creek with 140.2 mm for the month.
  • Victoria's rainfall since the start of this year (January–April) was 2% above average, mostly due to much wetter than average January.

Coolest nights since 2008

  • Night-time temperatures were below average across most of Victoria's north, and above average along parts of the coast.
  • The Victorian minimum temperature was 0.65 °C below the April average, the lowest since 2008.
  • Daytime temperatures were close to average across Victoria away from the north-west, due to the multiple bursts of cold southerly air and increased cloud cover, which followed the passage of cold fronts.
  • Averaged across the state, the mean maximum temperature was 0.41 °C above the April average.
  • The month started with several unseasonably warm days, and daily maximum temperatures exceeded 30 °C in much of Victoria.
  • The highest maximum temperature recorded in Victoria was 35.9 °C at Walpeup Research on the 4th.
  • Falls Creek and Mount Hotham had their highest April temperature on record on the 2nd.
  • A polar air mass followed in a wake of a strong cold front that crossed Victoria on the 10th, bringing damaging winds, powerful surf along the coast, and daytime temperatures more than 8 degrees below the April average at many sites.
  • Another strong cold front crossed Victoria on the 20th bringing more cold air, gusty south-westerly winds and showers for much of the state.
  • The lowest night-time temperature recorded in Victoria in April was −4.9 °C at Mount Hotham on the 21st.
  • Aireys Inlet had its coldest April day on record on the 20th, while Walpeup Research and Colac (Mount Gellibrand) had their lowest April temperature on record on the 21st.
  • Victoria's year-to-date mean temperature was around 0.2 °C below average, the coolest January–April period since 2004.

Strong winds and snow

  • A strong cold front on the 10th brought a sharp decrease in temperatures to the state, and snow to the elevated parts of Victoria; Mount Baw Baw, Lake Mountain and Mount Buller recorded between 20 and 40 cm of snow. Lighter snowfalls were recorded at Falls Creek and Mt Hotham, with some graupel and light snow flurries observed to lower elevations at Marysville and the Dandenong Ranges.
  • Damaging winds this April were associated with the passage of a cold front on the 10th, and the strongest wind gusts of 124 km were reported at Wilsons Promontory Lighthouse on the 10th and 11th.
  • More snow fell on the Victorian Alps in the wake of a vigorous cold front that crossed Victoria on the 20th bringing low temperatures, rain and snow.

Further information

Media
(03) 9669 4057

Extremes in April 2021
Hottest day 35.9 °C at Walpeup Research on the 4th
Warmest days on average 24.6 °C at Mildura Airport
Coolest days on average 8.2 °C at Mount Hotham
Coldest day -1.0 °C at Mount Hotham on the 11th
Coldest night -4.9 °C at Mount Hotham on the 21st
Coolest nights on average 2.4 °C at Mount Hotham
Warmest nights on average 13.3 °C at Gabo Island Lighthouse
Warmest night 18.9 °C at Walpeup Research on the 3rd
Warmest on average overall 17.1 °C at Walpeup Research
Coolest on average overall 5.3 °C at Mount Hotham
Wettest overall 140.2 mm at Ferny Creek
Driest overall 0 mm at Mildura Airport
Wettest day 59.0 mm at Ferny Creek on the 11th
Strongest wind gust 124 km/h at Wilsons Promontory Lighthouse on the 10th
124 km/h at Wilsons Promontory Lighthouse on the 11th

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 temperature
New record
(°C)
Old
record
Years of
record
Average for
April
Falls Creek 19.7 on the 2nd 19.1 on the 1st in 2009 31 9.9
Mount Hotham 18.3 on the 2nd 17.3 on the 11th in 2000 30 8.5



Record lowest April daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
April
Aireys Inlet 11.6 on the 20th 11.7 on the 26th in 2009 30 19.2



Record lowest April temperature
New record
(°C)
Old
record
Years of
record
Average for
April
Walpeup Research 0.6 on the 21st 1.7 on the 27th in 1999 55 10.2
Colac (Mount Gellibrand) 2.8 on the 21st 3.1 on the 28th in 2008 21 10.0



Lowest April mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
lower
Average for
April
Rutherglen Research 4.0 3.9 in 1999 7.1



Summary statistics for April 2021
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
April
2021
Diff
from
average
Highest for
April
2021
Mean for
April
2021
Diff
from
average
Lowest for
April
2021
Total for
April
2021
Average
for
April
Rank of
April
2021
Fraction of
April
average
North Mallee (district 76)
Mildura Airport 24.6 +0.9 34.5 4th 8.9 -1.3 1.1 21st 0 19.3 lowest 0%
Ouyen (Post Office) 24.3 +0.8 35.6 4th 8.8 -0.8 1.0 21st 1.8 22.3 low 8%
Walpeup Research 24.3 +1.3 35.9 4th 9.8 -0.4 0.6 21st 1.2 23.2 v low 5%
South Mallee (district 77)
Hopetoun Airport 23.7 -0.2 34.7 4th 7.2 -1.7 -1.6 21st 3.0 21.5 low 14%
Swan Hill Aerodrome 23.8 -0.1 34.9 4th 7.7 -1.5 2.5 21st 2.0 21.1 low 9%
North Wimmera (district 78)
Kellalac (Warracknabeal Airport) 23.0   34.1 3rd 7.6   0.6 21st 3.6
Nhill Aerodrome 22.5 -0.2 34.2 3rd 8.1 -1.0 1.1 21st 6.2 20.1 low 31%
South Wimmera (district 79)
Edenhope Airport 21.0 -0.3 34.0 3rd 8.3 -0.8 -0.4 21st 17.4 32.5 low 54%
Grampians (Mount William) 12.4 -0.1 24.8 3rd 5.8 -0.2 -0.5 21st 66.4 78.5 average 85%
Horsham Aerodrome 22.2 -0.1 34.4 3rd 6.1 -1.1 -0.7 21st 4.8 25.3 v low 19%
Kanagulk 21.1 -0.2 34.6 3rd 7.0 -1.4 -0.9 21st 17.6 32.3 low 54%
Longerenong 22.4 +0.8 34.3 3rd 6.7 -1.4 -2.1 21st 5.8 28.7 low 20%
Pyrenees (Ben Nevis) 15.3 -0.6 26.7 4th 7.4 -0.8 1.0 21st 27.0 43.2 average 63%
Stawell Aerodrome 20.3 -0.5 32.5 3rd 8.5 -0.1 0.9 21st 8.2 28.1 low 29%
Lower North (district 80)
Charlton 22.8 -0.4 34.1 4th 8.1 -1.1 0.6 21st 1.2 27.3 v low 4%
Echuca Aerodrome 22.7 +0.4 33.1 4th 8.1 -1.3 2.9 13th 2.7 32.3 v low 8%
Kerang 23.1 +0.3 34.4 4th 9.1 -0.3 3.2 21st 0.8 25.9 v low 3%
Kyabram 22.4 +0.5 32.4 4th 7.9 -0.9 1.9 21st 3.0 37.6 low 8%
Upper North (district 81)
Bendigo Airport 21.1 -0.3 31.1 4th 7.5 -0.5 1.7 21st 7.4 33.8 low 22%
Shepparton Airport 22.6 0.0 32.0 4th 8.0 -0.7 3.0 13th 3.6 35.4 v low 10%
Tatura Inst Sustainable Ag 21.7 +0.1 31.0 4th 7.6 -0.8 2.2 13th 4.4 34.8 low 13%
Yarrawonga 23.0 -0.1 31.1 4th 7.5 -1.6 1.5 17th 1.6 30.9 lowest 5%
Lower Northeast (district 82)
Benalla Airport 22.3 -0.3 30.8 4th 5.8 -2.5 0.1 22nd 1.3 47.6 v low 3%
Dartmouth Reservoir 20.2 -0.5 29.2 2nd 5.7 -1.6 0.4 24th 11.8 57.8 v low 20%
Hunters Hill 16.0 -0.6 25.2 2nd 8.2 -0.3 0.9 21st 7.6 72.7 v low 10%
Rutherglen Research 22.8 +0.8 30.4 5th 4.0 -3.1 -1.9 22nd 5.4 40.1 v low 13%
Strathbogie 18.9 0.0 28.0 4th 4.3 -1.4 -1.1 22nd 13.6 66.0 low 21%
Wangaratta Aero 22.5 -0.1 30.5 4th 4.7 -2.3 -0.6 18th 5.0 38.3 v low 13%
Upper Northeast (district 83)
Falls Creek 9.5 -0.4 19.7 2nd 3.2 0.0 -4.6 21st 31.2 96.5 v low 32%
Mount Buller 9.1 -0.9 18.7 2nd 3.1 -0.6 -4.2 21st 51.8 109.9 low 47%
Mount Hotham 8.2 -0.3 18.3 2nd 2.4 -0.3 -4.9 21st 23.8 101.0 v low 24%
Omeo 19.1 +0.1 28.2 4th 3.9 -1.7 -1.3 26th 8.4 35.9 v low 23%
East Gippsland (district 84)
Combienbar AWS 17.1 -0.8 28.5 3rd 9.8 0.0 5.0 21st 36.6 82.1 low 45%
Gabo Island Lighthouse 19.5 +0.2 26.9 4th 13.3 -0.2 9.5 22nd 36.2 83.2 low 44%
Gelantipy 16.2 -0.5 27.3 4th 6.5 -0.7 0.6 22nd 27.0 55.5 low 49%
Lakes Entrance (Eastern Beach Road) 19.8 -0.5 28.3 4th 10.8 -0.3 6.1 19th 24.6 61.3 low 40%
Mallacoota 19.9 -0.3 26.7 8th 11.2 -0.6 6.1 22nd 39.2 89.1 average 44%
Mount Nowa Nowa 19.1 -0.2 30.9 3rd 10.1 -0.7 5.5 11th 15.6 76.6 low 20%
Orbost 20.2 -0.9 31.1 4th 10.2 -0.6 6.1 29th 20.2 72.3 low 28%
West Gippsland (district 85)
Bairnsdale Airport 20.7 -0.1 31.5 3rd 9.1 +0.4 4.1 13th 13.4 55.4 low 24%
Corner Inlet (Yanakie) 19.2   30.9 3rd 10.4   6.2 13th 0
East Sale 20.3 -0.1 31.8 3rd 9.4 +0.7 3.1 13th 12.2 47.6 v low 26%
East Sale Airport 20.5   31.9 3rd 9.4   2.9 13th 14.2
Morwell (Latrobe Valley Airport) 20.3 -0.3 31.5 3rd 9.3 +0.5 3.2 21st 44.8 56.6 average 79%
Mount Moornapa 18.5 0.0 30.4 4th 9.5 -0.5 3.7 11th 28.4 74.3 average 38%
Nilma North (Warragul) 19.7   30.9 3rd 9.2   2.5 13th 56.2
Pound Creek 19.6 -0.9 31.0 3rd 9.9 +0.4 4.8 29th 66.4 66.1 average 100%
Wilsons Promontory Lighthouse 17.2 -0.1 28.5 3rd 13.1 +0.3 8.0 11th 103.4 84.3 high 123%
Yarram Airport 19.5 -0.9 30.9 3rd 9.4 +0.4 3.3 13th 44.0 46.3 average 95%
East Central (district 86)
Cerberus 19.9 0.0 31.4 3rd 10.1 +0.1 3.8 29th 41.6 60.6 average 69%
Coldstream 20.5 -0.1 31.2 3rd 7.9 +0.9 2.0 13th
Essendon Airport 20.4 +0.2 31.7 3rd 10.6 +0.6 5.1 21st 26.8 54.3 low 49%
Ferny Creek 16.1 -0.9 27.0 2nd 9.1 -0.9 1.7 11th 140.2 115.4 high 121%
Frankston (Ballam Park) 19.8   30.6 3rd 11.1   5.2 21st 60.0
Melbourne (Olympic Park) 20.2   31.6 3rd 11.9   7.1 21st 37.0
Melbourne Airport 20.6 +0.2 31.6 3rd 10.0 -0.2 4.2 21st 12.6 44.2 low 29%
Moorabbin Airport 20.1 -0.1 32.1 3rd 11.6 +1.1 5.0 28th 50.4 62.3 average 81%
Rhyll 19.4 -0.2 28.0 3rd 12.4 -0.3 7.8 11th 48.6 59.8 average 81%
Scoresby Research Institute 20.1 0.0 31.5 2nd 10.1 0.0 3.7 28th 72.6 68.6 average 106%
Viewbank 20.5 -0.9 31.5 2nd 10.4 +0.3 5.4 28th 66.0 60.8 high 109%
West Central (district 87)
Avalon Airport 20.5 0.0 33.3 3rd 9.8 +0.1 3.9 29th 16.8 38.0 low 44%
Breakwater (Geelong Racecourse) 20.5   33.5 3rd 10.3   4.4 29th 15.8
Laverton RAAF 20.6 +0.3 32.7 3rd 10.4 +0.5 4.3 21st 20.0 45.0 low 44%
Sheoaks     28.9 1st 9.2 +0.4 3.3 29th 14.6 37.9 average 39%
North Central (district 88)
Castlemaine Prison     29.9 4th 7.1 -0.6 2.0 17th 9.7 41.0 low 24%
Eildon Fire Tower 17.4 -1.0 27.8 4th 8.3 -0.9 2.1 11th 19.2 49.2 average 39%
Lake Eildon 19.7 -1.3 29.9 2nd 7.1 -0.8 2.1 21st 25.6 59.9 low 43%
Mangalore Airport 21.6 +0.1 31.3 4th 6.8 -1.8 1.4 13th 5.8 39.6 v low 15%
Maryborough 20.6 0.0 31.6 4th 8.2 -0.1 1.4 21st 11.8 38.8 low 30%
Puckapunyal Lyon Hill (Defence) 21.0   31.1 4th 9.1   3.9 11th 5.0
Puckapunyal West (Defence) 20.4   30.6 4th 8.7   2.8 21st 6.0
Redesdale 21.4 +0.6 31.6 4th 6.1 -1.3 0.6 21st 6.2 41.3 low 15%
Wallan (Kilmore Gap) 17.4 +0.2 28.6 4th 8.9 0.0 3.5 21st 24.2 55.8 low 43%
Western Plains (district 89)
Ararat Prison 19.3 -0.4 31.4 3rd 6.8 -0.5 0.7 29th 27.2 41.6 average 65%
Ballarat Aerodrome 17.8 +0.1 28.2 3rd 6.8 -0.7 -1.8 21st 21.2 50.9 low 42%
Westmere 19.2 -0.9 32.8 3rd 7.5 -0.2 1.2 29th 25.4 34.9 average 73%
West Coast (district 90)
Aireys Inlet 19.0 -0.2 33.4 3rd 11.2 -0.4 5.5 21st 23.8 46.9 low 51%
Cape Nelson Lighthouse 18.4 0.0 31.9 3rd 12.5 +0.2 7.7 21st 56.6 45.7 average 124%
Cape Otway Lighthouse 17.7 -0.3 30.7 3rd 12.1 +0.4 7.7 11th 60.6 70.7 average 86%
Casterton 19.9 -0.6 33.8 3rd 7.9 -0.9 1.8 21st 38.6 44.3 average 87%
Colac (Mount Gellibrand) 18.4 -0.8 31.3 3rd 9.5 -0.5 2.8 21st 20.8 41.1 low 51%
Dartmoor 20.1 0.0 35.0 3rd 9.0 0.0 4.5 29th 48.2 50.8 average 95%
Hamilton Airport 19.4 -0.5 33.2 3rd 7.8 -0.6 0.1 21st 29.6 40.2 average 74%
Mortlake Racecourse 19.6 -0.5 34.1 3rd 7.8 -0.1 2.0 29th 36.4 43.9 average 83%
Port Fairy AWS 19.3 -0.1 33.8 3rd 10.9 0.0 6.1 21st 55.0 49.9 average 110%
Portland (Cashmore Airport) 18.9 +0.4 32.2 3rd 10.3 +0.4 4.4 21st 82.2 58.9 high 140%
Warrnambool Airport NDB 19.6 -0.4 34.0 3rd 9.0 0.0 3.6 7th 63.4 53.8 average 118%

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 9 pm on Sunday 2 May 2021. 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

Climate