Monday, 2 May 2016 - Monthly Climate Summary for Victoria - Product code IDCKGC16R0
Victoria in April 2016: Warm with below average rainfall
For most of Victoria, April rainfall was below to very much below average, with average rainfall recorded only in central areas north of Melbourne, parts of the West Coast and in a small area around Sale. April maximum temperatures were generally very much above average throughout the State. Minimum temperatures were above average, with very much above average minimum temperatures recorded only in parts of southern, central and eastern Victoria.
- Daytime and overnight temperatures above average overall
- Victoria's second-warmest April on record
- Late-season high temperature records at a number of sites
- Rainfall well below average for much of Victoria
For Victoria, the month was dominated by high pressure systems resulting in mostly dry conditions. April rainfall was 62% below average. Mallacoota had its lowest total April rainfall since 1981. Cold fronts on the 6th, 22nd and 29th brought some rain to southern and central parts of the State, with totals mostly in the 10-20 mm range and only locally higher falls. The highest registered total for the month was 126.8 mm Haines Junction/Mount Sabine, while the highest daily total of 55.6 mm was registered at Mount Hotham on the 30th.
Victoria recorded above average mean maximum temperatures in April; the statewide average maximum temperature was 2.30 °C above the long-term mean, the fourth-highest since records began in 1910 and the highest since 2005. Most sites had maximum temperatures between 1.5 and 2.5 °C above the April average. Warm northerly winds brought unseasonably high temperatures to the State on several days, and on the 20th Mildura Airport recorded 33.0 °C, the highest daily maximum temperature during the month. Several sites, particularly in the west of the State, recorded late-season high maximum temperature records on the 20th.
Minimum temperatures were generally average to above average, with very much above average minimum temperatures in the south and east of Victoria. The statewide average minimum temperature was 1.00 °C above the long-term mean. Some nights were particularly warm, for example on the 21st and 28th, when many late-season temperature records were set across the State. Both Cerberus and Wonthaggi recorded a minimum temperature of 21.1 °C on the 28th. The coldest night during April, −1.7 °C, was recorded at Falls Creek on the 23rd, in a wake of a cold front that brought a sharp decrease in temperatures across the State after it crossed on the 22nd.
|Extremes in April 2016|
33.0 °C at Mildura Airport on the 20th|
|Warmest days on average||
26.1 °C at Mildura Airport|
|Coolest days on average||
10.9 °C at Mount Hotham|
5.6 °C at Mount Baw Baw on the 22nd|
−1.7 °C at Falls Creek on the 23rd|
|Coolest nights on average||
4.5 °C at Mount Hotham|
|Warmest nights on average||
14.6 °C at Wilsons Promontory Lighthouse|
21.1 °C at Cerberus on the 28th|
21.1 °C at Wonthaggi on the 28th
|Warmest on average overall||
18.5 °C at Mildura Airport|
|Coolest on average overall||
7.7 °C at Mount Hotham|
126.8 mm at Haines Junction (Mount Sabine)|
0.8 mm at Hopetoun Airport|
0.8 mm at Woomelang
55.6 mm at Mount Hotham on the 30th|
|Strongest wind gust||
104 km/h at Wilsons Promontory Lighthouse on the 10th|
Click on a map to show it full size in a pop-up window
|Lowest April total rainfall for at least 20 years|
* note: there are gaps in the historical record at this site, so it is possible a lower value has gone unreported.
|Record highest April mean daily maximum temperature|
|Hunters Hill||19.7||19.1||in 2002||23||16.3|
|Combienbar AWS||20.4||20.2||in 2005||21||17.5|
|Highest April mean daily maximum temperature for at least 20 years|
|Gabo Island Lighthouse||21.4||21.7||in 1894*||19.2|
* note: there are gaps in the historical record at this site, so it is possible a higher value has gone unreported.
|Record highest April mean daily minimum temperature|
|Wallan (Kilmore Gap)||10.9||10.7||in 2010||22||8.7|
|Record highest April mean temperature|
|Hunters Hill||15.1||14.9||in 2005||23||12.3|
|Summary statistics for April 2016|
|North Mallee (district 76)|
|Ouyen (Post Office)||25.7||+2.3||32.1||5th||10.8||+1.3||4.5||23rd||3.0||21.7||low||14%|
|South Mallee (district 77)|
|Hopetoun Airport||25.1||+1.5||32.1||5th||9.7||+1.0||2.9||7th||0.8||19.7||v low||4%|
|Swan Hill Aerodrome||25.4||+1.7||30.6||20th||10.3||+1.4||4.6||7th||15.0||19.7||average||76%|
|North Wimmera (district 78)|
|South Wimmera (district 79)|
|Grampians (Mount William)||14.0||+1.9||21.2||5th||7.2||+1.4||2.3||17th||22.8||73.8||v low||31%|
|Horsham Aerodrome||23.4||+1.2||30.5||20th||8.3||+1.2||2.2||7th||7.6||25.5||v low||30%|
|Pyrenees (Ben Nevis)||17.6||24.5||5th||9.4||4.6||7th||17.8|
|Lower North (district 80)|
|Upper North (district 81)|
|Tatura Inst Sustainable Ag||24.2||+2.7||29.4||5th||9.8||+1.5||4.3||7th||18.8||34.2||average||55%|
|Lower Northeast (district 82)|
|Corryong Airport||25.2||+3.9||30.4||5th||5.9||+0.1||1.7||9th||14.2||48.1||v low||30%|
|Upper Northeast (district 83)|
|East Gippsland (district 84)|
|Gabo Island Lighthouse||21.4||+2.2||26.9||2nd||14.5||+1.0||11.7||4th||26.0||84.4||low||31%|
|Lakes Entrance (Eastern Beach Road)||22.8||29.8||5th||11.4||5.9||25th||24.2||69.9||v low||35%|
|Mount Nowa Nowa||21.3||+2.3||29.4||5th||12.3||+1.6||7.9||7th||15.2||86.2||v low||18%|
|Point Hicks (Lighthouse)||21.6||+1.8||30.1||5th||13.9||+0.8||10.7||25th||40.5||87.9||low||46%|
|West Gippsland (district 85)|
|Corner Inlet (Yanakie)||21.9||30.1||5th||11.5||4.9||25th||34.2|
|East Sale Airport||22.4||+2.1||28.1||5th||8.9||+0.3||3.4||27th||26.0||48.5||average||54%|
|Morwell (Latrobe Valley Airport)||22.4||+1.9||29.7||5th||8.8||+0.1||2.8||27th||31.4||57.7||low||54%|
|Mount Baw Baw||11.8||+2.2||15.4||4th||5.6||+2.0||0.0||3rd||69.2||142.9||v low||48%|
|Wilsons Promontory Lighthouse||20.1||+2.8||27.0||5th||14.6||+1.9||12.5||6th||35.0||84.0||low||42%|
|East Central (district 86)|
|Bundoora (Latrobe University)||22.6||+2.2||29.8||5th||11.1||+1.3||5.4||7th||50.9||54.6||average||93%|
|Cranbourne Botanic Gardens||21.9||+2.1||28.8||5th||11.7||+1.5||7.5||25th||46.6||69.6||low||67%|
|Melbourne (Olympic Park)||22.4||29.0||5th||13.0||8.3||7th||48.6|
|Scoresby Research Institute||22.3||+2.3||28.5||5th||11.8||+1.8||6.0||24th||66.8||67.4||average||99%|
|West Central (district 87)|
|Breakwater (Geelong Racecourse)||22.5||31.7||5th||11.8||6.3||25th||23.4|
|North Central (district 88)|
|Eildon Fire Tower||20.5||+2.3||25.6||5th||10.8||+1.7||5.9||7th||28.0||42.9||average||65%|
|Wallan (Kilmore Gap)||19.3||+2.4||25.7||5th||10.9||+2.2||6.5||3rd||46.2||54.9||average||84%|
|Western Plains (district 89)|
|Ballarat Aerodrome||20.1||+2.4||27.5||5th||8.9||+1.4||2.2||7th||13.8||50.8||v low||27%|
|West Coast (district 90)|
|Cape Nelson Lighthouse||20.2||+2.1||31.4||20th||13.0||+0.7||7.3||4th||24.4||44.9||low||54%|
|Cape Otway Lighthouse||19.5||+1.5||28.7||20th||13.3||+1.7||9.4||4th||45.8||70.9||low||65%|
|Colac (Mount Gellibrand)||20.8||+1.7||28.5||20th||11.5||+1.7||6.1||7th||18.0||38.9||low||46%|
|Port Fairy AWS||20.8||+1.5||30.7||20th||11.6||+0.8||6.6||4th||25.0||50.6||low||49%|
|Portland (Cashmore Airport)||20.0||+1.6||29.4||20th||10.3||+0.5||3.3||4th||41.6||58.2||average||71%|
|Warrnambool Airport NDB||21.2||+1.3||31.3||20th||10.1||+1.3||3.2||4th||37.0||52.2||average||71%|
The Monthly climate summary 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. Later information, including data that has had greater opportunity for quality control, will be presented in the Monthly Weather Review.
A climate summary is generally published on the first working day of each month.
This statement has been prepared based on information available at 11 am on Monday 2 May 2016. 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
(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.