Victoria in April: Rainfall much less than that usually received

Highlights:

  • Overnight temperatures slightly warmer than those in most years
  • Daytime temperatures notably warmer than those in most years
  • Rainfall much less than that in most years

Summary

Bureau of Meteorology data show that across the State of Victoria, overnight minimum temperatures were slightly warmer than those usually experienced (average departure from normal 0.6C). Daytime maximum temperatures at most localities were notably warmer than those registered in the past (average departure from normal 1.1C). Total rainfall for the month was generally much less than that usually recorded (average percentage of normal received 37.9%).

Over the northern plains, minimum temperatures were slightly warmer than those usually experienced (average departure from normal 0.7C). Daytime maximum temperatures at most localities were much warmer than those registered in the past (average departure from normal 1.5C). Total rainfall for the month was generally much less than that usually recorded (average percentage of normal received 28.9%).

In southern districts, minimum temperatures were slightly warmer than those usually experienced (average departure from normal 0.5C). Daytime maximum temperatures at most localities were slightly warmer than those registered in the past (average departure from normal 0.6C). Total rainfall for the month was generally much less than that usually recorded (average percentage of normal received 48.8%).

Details

In the Mallee, overnight minimum temperatures were slightly warmer than those usually experienced (average departure from normal 0.7C). Daytime maximum temperatures at most localities were much warmer than those registered in the past (average departure from normal 2.1C). Total rainfall for the month was generally much less than that usually recorded (average percentage of normal received 45%).

In the Wimmera, overnight minimum temperatures were near to those usually experienced (average departure from normal 0.4C). Daytime maximum temperatures at most localities were much warmer than those registered in the past (average departure from normal 1.5C). Total rainfall for the month was generally much less than that usually recorded (average percentage of normal received 33%).

In the Northern Country, overnight minimum temperatures were much warmer than those usually experienced (average departure from normal 1.6C). Daytime maximum temperatures at most localities were much warmer than those registered in the past (average departure from normal 2.1C). Total rainfall for the month was generally much less than that usually recorded (average percentage of normal received 23%).

In Victoria's North Central District, overnight minimum temperatures were slightly warmer than those usually experienced (average departure from normal 0.9C). Daytime maximum temperatures at most localities were much warmer than those registered in the past (average departure from normal 1.7C). Total rainfall for the month was generally much less than that usually recorded (average percentage of normal received 16%).

In the North East District, overnight minimum temperatures were near to those usually experienced (average departure from normal 0.3C). Daytime maximum temperatures at most localities were slightly warmer than those registered in the past (average departure from normal 0.5C). Total rainfall for the month was generally much less than that usually recorded (average percentage of normal received 28%).

In East Gippsland, overnight minimum temperatures were warmer than those usually experienced (average departure from normal 1.3C). Daytime maximum temperatures at most localities were slightly warmer than those registered in the past (average departure from normal 0.8C). Total rainfall for the month was generally less than that usually recorded (average percentage of normal received 61%).

In West Gippsland, overnight minimum temperatures were slightly warmer than those usually experienced (average departure from normal 0.8C). Daytime maximum temperatures at most localities were near to those registered in the past (average departure from normal 0.4C). Total rainfall for the month was generally slightly less than that usually recorded (average percentage of normal received 68.5%).

In the Central District, overnight minimum temperatures were near to those usually experienced (average departure from normal 0.2C). Daytime maximum temperatures at most localities were near to those registered in the past (average departure from normal 0.3C). Total rainfall for the month was generally much less than that usually recorded (average percentage of normal received 35.3%).

In the Western District, overnight minimum temperatures were near to those usually experienced (average departure from normal -0.2C). Daytime maximum temperatures at most localities were warmer than those registered in the past (average departure from normal 1.3C). Total rainfall for the month was generally much less than that usually recorded (average percentage of normal received 37%).

Melbourne climate summary for the month of April 2013

Rainfall much less than that usually received.

Located in the Central District at the head of Port Phillip Bay, Melbourne is Victoria's State Capital. Here, overnight minimum temperatures were much warmer than those usually experienced and averaged 12.3C (departure from normal 1.5C). That the overnight temperatures in Melbourne are higher than those in most surrounding localities is a consequence of the city being under the influence of the effect of urbanisation (cities are usually warmer than their rural surroundings, especially at night, because of heat stored in bricks and concrete and trapped between close-packed buildings). Daytime maximum temperatures were warmer than those usually experienced and averaged 21.3C (departure from normal 1C). Total rainfall for the month was 27.2 mm, this being much less than that usually recorded (normal 57.1 mm, percentage of normal received 48%).

Some 20 kilometres northwest of the Melbourne city centre, Melbourne Airport, is typical of the Melbourne suburban area. Here, overnight minimum temperatures were near to those usually experienced and averaged 10.3C (departure from normal 0.2C). Daytime maximum temperatures were near to those usually experienced and averaged 20.6C (departure from normal 0.3C). Total rainfall for the month was 22.6 mm, this being less than that usually recorded (normal 43.1 mm, percentage of normal received 52%).

Rainfall

Some sites had their highest total April rainfall for at least 10 years.

Some sites had their lowest total April rainfall on record.

Some sites had their lowest total April rainfall for at least 10 years.

Temperature

Some sites had their lowest April temperature on record.
Extremes in April 2013
Hottest day 32.8 C at Mildura Airport on the 13th
Warmest days on average 25.4 C at Mildura Airport
Coolest days on average 7.3 C at Mount Hotham
Coldest day -0.5 C at Mount Hotham on the 19th
Coldest night -4.1 C at Mount Hotham on the 19th
Coolest nights on average 2.3 C at Mount Hotham
Warmest nights on average 13.9 C at Gabo Island Lighthouse
Warmest night 19.0 C at Charlton on the 13th
Warmest on average overall 17.9 C at Mildura Airport
Coolest on average overall 4.8 C at Mount Hotham
Wettest overall 123.8 mm at Combienbar
Driest overall 0 mm at Shepparton Airport
Highest wind gust 102 km/h at Wilsons Promontory Lighthouse on the 25th and 26th

Maps

Anomaly in mean maximum temperature

Map of Anomaly in mean maximum temperature

Anomaly in mean minimum temperature

Map of Anomaly in mean minimum temperature

Rainfall deciles

Map of Rainfall deciles


Highest total April rainfall for at least 10 years
Total rainfall
for April 2013 (mm)
Most recent April
at least this wet
Years since
wetter
Average for
April
Swifts Creek 75.8 82.2 in 1996* 16 43.2
Buchan River at Buchan 85.6 153.4 in 2002 11 54.7
Gelantipy 78.8 148.6 in 2002 11 53.0

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



Record lowest total April rainfall
Total rainfall
for April 2013 (mm)
Previous driest
for April
Years of
record
Average for
April
Mitcham 11.6 16.7 in 1963 76 73.5
Cobram (Goulburn Murray) 2.8 3.0 in 1966 54 33.6
Kyabram 1.4 = 1.4 in 1997 50 36.0
Glenthompson 1.8 5.8 in 1993 46 45.4
Lima South (Lake Nillahcootie) 0.2 7.4 in 1981 45 63.2
Simpson South 8.2 19.0 in 1981 44 76.0
Altona (City Offices) 3.5 10.5 in 1981 40 45.9
Glen Waverley (Golf Course) 5.4 23.0 in 2007 40 70.0
Strath Creek 10.4 12.8 in 1993 31 47.5
Coldstream 14.4 18.8 in 2005 19 59.9
Mortlake Racecourse 11.6 12.4 in 1997 19 42.0
Rhyll 17.8 24.2 in 2002 19 59.9
Acheron River @ Taggerty 1.8 5.0 in 2008 18 44.3
Eildon Fire Tower 8.0 8.2 in 2008 17 40.3
Shepparton Airport 0.0 1.2 in 1997 17 31.0
Axe Creek @ Strathfieldsaye 4.4 7.4 in 2004 13 24.8
Barwon River @ Inverleigh 7.2 8.6 in 2008 13 30.8
Blackwood (Blue Mountain) 19.6 23.0 in 2002 13 51.3
Bridge Creek (Broken River at D/S Bridge 2.6 15.0 in 2001 13 35.8
Bridge Inn (Concongella Ck at Stawell) 3.6 5.2 in 2005 13 26.4
Broken River at Benalla 7.0 8.0 in 2005 13 31.0
Campaspe River @ Rochester Syphon (202C) 0.8 3.0 in 2004 13 27.4
Colac (Mount Gellibrand) 9.4 14.2 in 2005 13 39.0
Gooram (Morella) 9.6 10.2 in 2002 13 38.6
Holland Ck at Wrightley 9.8 13.0 in 2004 13 43.7
Home Ck @ Yarck 2.6 12.4 in 2002 13 30.4
Jim Crow Creek @ Yandoit 3.4 3.8 in 2004 13 28.3
Kilfeera (Holland Ck at Kelfeera) 7.0 10.0 in 2005 13 31.5
King Parrot Ck @ Flowerdale 9.0 14.8 in 2008 13 41.8
Major Creek @ Graytown 0.2 3.8 in 2004 13 27.8
Moorabool River at Lal Lal 2.0 14.2 in 2008 13 37.5
Myrrhee (Cryers) 16.0 22.4 in 2012 13 50.9
Porepunkah (Buckland River at Harris Lan 20.8 24.0 in 2005 13 65.6
Runnymeade (Mount Pleasant Ck @ Runnymed 0.0 = 0.0 in 2012 13 22.9
Spargo Creek (Mount Hope) 21.2 26.2 in 2008 13 52.4
Traralgon EPA 10.2 18.0 in 2005 13 52.6
Whitfield (King River at Cheshunt) 8.6 16.6 in 2012 13 55.2
Campaspe River @ Redesdale 0.8 3.2 in 2004 12 28.4
Gibbo River @ Gibbo Park 14.0 18.0 in 2005 12 41.4
Goughs Bay (Delatite River @ Tonga Bridg 0.4 19.4 in 2007 12 44.9
Jamieson (Goulburn River @ Dohertys) 25.2 30.2 in 2007 12 61.4
Moe River at Darnum 8.6 16.0 in 2007 12 61.5
Mount Bullengarook 17.0 19.2 in 2012 12 38.0
Waterford Park (Pine Creek @ Broadford) 10.2 18.2 in 2002 12 33.7
Barwon River @ Ricketts Marsh 12.4 14.6 in 2008 10 42.7
Bunyip River @ Koo Wee Rup 18.0 23.2 in 2007 10 59.4
Coonooer Bridge (Avoca River at Yawong W 0.0 3.4 in 2012 10 17.9
Glencairn (Barkly River (Glenview)) 20.8 22.2 in 2007 10 42.7
Healesville (Yarra River @ Yarra Grange) 17.8 20.8 in 2008 10 48.4
Kororoit Creek @ Brooklyn 15.2 = 15.2 in 2008 10 34.9
Kororoit Creek @ Deer Park 14.0 17.4 in 2008 10 34.1
Lang Lang River @ Lang Lang (Head Road) 17.4 23.8 in 2007 10 65.5
Loddon River @ D/S Laanecoorie 2.8 4.8 in 2008 10 18.5
Romsey 12.4 14.6 in 2008 10 33.0
Toolangi (Mt St Leonard MW) 47.0 50.4 in 2007 10 95.1
Weeragua (Cann River (East Branch) at Ch 2.2 18.4 in 2010 10 64.0

Lowest total April rainfall for at least 10 years
Total rainfall
for April 2013 (mm)
Most recent April
at least this dry
Years since
drier
Average for
April
Blackwood 10.6 1.0 in 1923 90 71.9
Leongatha Sth Gippsland Water 9.8 0.0 in 1923* 89 76.7
Yan Yean 9.4 0.0 in 1923* 88 55.9
Yea 4.8 1.8 in 1927 86 49.1
Eltham 3.8 0.0 in 1923* 83 62.2
Stanhope 1.8 0.0 in 1945 68 33.1
Inglewood (Post Office) 2.0 0.8 in 1949 64 31.5
Alexandra (Post Office) 8.4 4.6 in 1963 50 51.7
Bannockburn 10.0 7.2 in 1976* 35 41.6
Woods Point 22.0 17.3 in 1972* 34 99.5
Lake Eildon 10.0 7.0 in 1981 32 59.4
Mansfield (Post Office) 11.6 8.9 in 1981 32 50.2
Tubbut 4.0 3.4 in 1980* 32 46.8
Lancefield 7.2 6.2 in 1981* 28 51.7
Phillip Island Penguin Reserve 19.3 16.0 in 1988* 22 63.2
Chiltern (Post Office) 6.2 4.4 in 1993 20 47.1
Dookie Agricultural College 3.2 1.0 in 1993 20 41.1
Lake Buffalo 9.8 9.2 in 1993 20 64.9
Rochester 1.2 =1.2 in 1993 20 30.0
Rosebud (Country Club) 23.2 22.6 in 1993 20 64.8
Cairn Curran Reservoir 4.8 4.2 in 1994 19 33.2
Dunolly 3.2 2.8 in 1994 19 35.0
Hamilton Airport 12.6 5.0 in 1993* 19 38.1
Maryborough 7.6 4.4 in 1994 19 39.1
Rushworth 5.6 4.2 in 1994 19 37.3
Mirboo North Water Board 30.4 21.4 in 1993* 18 83.2
Toora 20.6 19.8 in 1993* 17 76.5
Wedderburn (Post Office) 1.8 0.6 in 1994* 17 33.0
Boort 2.1 0.6 in 1997 16 26.8
Burrowye Station 16.4 5.0 in 1997 16 56.2
Echuca Aerodrome 3.0 1.4 in 1997 16 32.2
Edi Upper 14.2 8.8 in 1997 16 57.4
Eurobin 21.6 10.4 in 1997 16 76.5
Koetong 21.0 6.6 in 1997 16 68.4
Korong Vale (Burnbank) 1.8 1.2 in 1997 16 27.5
Mangalore Airport 5.0 3.8 in 1997 16 38.4
Nagambie (Goulburn Weir) 4.6 4.0 in 1997 16 36.9
Nariel Creek (Simpson) 25.2 4.4 in 1997 16 65.7
Natte Yallock 3.8 3.2 in 1997 16 32.7
Nullawarre 28.0 26.4 in 1997 16 69.9
Tatura Inst Sustainable Ag 2.2 1.4 in 1997 16 33.8
Whitlands (Burder's Lane) 20.8 15.8 in 1997 16 95.4
Avenel (Post Office) 6.8 6.4 in 1997* 15 41.7
Castlemaine Prison 9.7 8.9 in 1997* 15 40.3
Raywood 5.4 2.6 in 1997* 15 29.7
Tallangatta DCNR 16.6 3.8 in 1997* 15 53.2
Ararat Prison 9.1 3.6 in 1999 14 42.1
Beaufort 10.8 7.4 in 1999 14 53.0
Beeac (Post Office) 6.1 5.8 in 1999 14 45.5
Beech Forest 69.6 49.2 in 1967* 14 147.9
Bendigo Airport 5.0 4.4 in 1999 14 27.3
Cerberus 18.4 18.0 in 1999 14 64.2
Colac (Shire Office) 19.6 8.8 in 1999 14 56.3
Derrinallum (Post Office) 14.8 6.0 in 1999 14 50.3
Donald 3.6 0.0 in 1999 14 23.8
Dunkeld 11.8 11.4 in 1999 14 53.9
Eppalock Reservoir 3.6 2.0 in 1999 14 36.6
Heathcote 6.2 4.2 in 1999 14 41.6
Kyneton 13.8 6.4 in 1999 14 49.3
Laverton RAAF 11.4 9.4 in 1999 14 45.1
Penshurst (Post Office) 18.8 15.2 in 1999 14 57.1
Redesdale 5.8 4.0 in 1999 14 40.0
Tawonga 23.6 19.6 in 1999 14 72.1
Terang 16.8 14.2 in 1999 14 63.5
Wickliffe 11.8 10.8 in 1999 14 44.3
Yarrawonga 6.6 5.5 in 1999 14 25.5
Cressy 12.0 8.0 in 1997* 13 43.3
Merino 21.6 13.0 in 1999* 13 53.5
Willaura (Main Street) 8.4 7.6 in 1999* 12 41.7
Euroa 9.4 6.4 in 2002 11 45.7
Euroa (Castle Ck at Telford Bridge) 8.2 5.8 in 2002 11 29.1
Gooram (Hillside) 8.6 6.8 in 2002 11 32.4
Seven Creeks at Strathbogie 12.8 10.8 in 2002 11 43.9
Sheans Creek (Heronslea) 9.0 7.0 in 2002 11 30.9
Strathbogie 12.8 11.0 in 2002 11 65.4
Tolmie (Mount Tabletop Repeater) 13.0 4.2 in 2002 11 54.4
Warrenbayne 14.7 14.6 in 2002 11 51.7
Anakie East (Wooloomanata) 6.2 0.0 in 2001* 10 22.3
Apsley (Post Office) 18.8 14.6 in 2002* 10 36.4
Boonah 14.2 3.8 in 2002* 10 55.7
Nelson 32.5 20.9 in 2003 10 60.1
Port Fairy AWS 28.0 15.4 in 2003 10 50.2
Warrnambool Airport NDB 23.6 19.2 in 2003 10 51.5

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




Record lowest April temperature
Lowest temperature
in April 2013 (C)
Previous coolest
for April
Years of
record
Average for
April
Portland (Cashmore Airport) 1.2 on the 20th 1.5 on the 25th in 1997 31 9.8



Summary statistics for April 2013
Maximum temperatures
for April
(C)
Minimum temperatures
for April
(C)
Rainfall
for April
(millimetres)
Mean for
April
2013
Diff
from
average
Highest for
April
2013
Mean for
April
2013
Diff
from
average
Lowest for
April
2013
Total for
April
2013
Average
for
April
Rank of
April
2013
Fraction of
April
average
North Mallee (district 76)
Mildura Airport 25.4 +1.8 32.8 13th 10.4 +0.3 1.1 20th 5.8 17.8 average 33%
Ouyen (Post Office) 25.1 +1.7 32.4 12th 10.6 +1.1 1.8 20th 12.6 21.4 average 59%
Walpeup Research 24.4 +1.5 31.7 13th 10.8 +0.8 3.1 20th 11.8 22.5 average 52%
South Mallee (district 77)
Hopetoun Airport 24.3   31.8 7th 9.2   2.3 21st 4.0
Swan Hill Aerodrome 24.8 +1.1 32.0 13th 10.0 +1.2 2.0 20th 5.0 15.0 average 33%
North Wimmera (district 78)
Nhill Aerodrome 23.2   31.1 6th 9.4   2.2 19th 11.6 18.0 average 64%
Warracknabeal Museum 23.7 +1.3 31.6 7th 10.1 +1.2 3.9 19th 5.7 25.6 low 22%
South Wimmera (district 79)
Edenhope Airport 22.0   30.5 6th 8.7   0.9 20th 34.8
Grampians (Mount William) 13.1   21.8 10th 6.3   0.6 19th 40.0
Horsham Aerodrome 23.2 +0.9 30.7 6th 7.8 +0.8 0.5 20th 14.2 25.7 average 55%
Kanagulk 22.2   30.6 6th 8.2   1.3 20th 21.6
Longerenong 23.1 +1.6 30.4 7th 8.2 +0.2 1.2 19th 14.8 28.8 average 51%
Pyrenees (Ben Nevis) 16.9   25.6 7th 8.3   3.1 19th 28.0
Stawell Aerodrome 21.5 +0.7 28.9 7th 9.3 +1.0 2.6 21st 13.2 28.3 low 47%
Lower North (district 80)
Charlton 24.2   31.3 7th 10.0   4.2 20th 3.4
Echuca Aerodrome 24.0 +1.8 30.4 8th 10.4 +1.0 3.5 21st 3.0 32.2 v low 9%
Kerang 24.8 +2.1 31.0 8th 10.8 +1.4 4.5 21st 7.6 25.1 low 30%
Kyabram 23.6 +1.9 29.4 12th 10.0 +1.4 3.9 21st 1.4 36.0 lowest 4%
Upper North (district 81)
Bendigo Airport 22.6 +1.4 28.2 12th 9.3 +1.7 3.8 25th 5.0 27.3 low 18%
Shepparton Airport 23.4 +1.0 28.6 12th 9.3 +1.1 2.7 21st 0 31.0 lowest 0%
Tatura Inst Sustainable Ag 22.8 +1.3 28.1 12th 9.2 +1.0 1.9 21st 2.2 33.8 v low 7%
Yarrawonga 23.5 +0.7 28.8 12th 9.3 +0.5 4.0 20th 6.6 25.5 low 26%
Lower Northeast (district 82)
Benalla Airport 22.8   27.8 12th 8.2   0.7 20th 7.2
Corryong Airport 21.1   25.6 12th 6.1   0.1 21st 20.8
Dartmouth Reservoir 20.4 -0.3 25.4 11th 7.8 +0.8 2.5 21st 24.4 58.5 low 42%
Hunters Hill 16.7 +0.4 21.5 8th 8.9 +0.7 3.1 19th 26.4 62.1 low 43%
Rutherglen Research 22.5 +0.6 28.3 12th 6.9 -0.2 -0.2 20th 11.0 39.8 low 28%
Strathbogie 19.4 +0.6 24.1 10th 6.2 +0.6 -1.9 21st 12.8 65.4 low 20%
Wangaratta Aero 22.6 +0.2 27.6 12th 7.5 +0.7 1.1 20th 12.2 37.5 low 33%
Upper Northeast (district 83)
Dinner Plain (Mount Hotham Airport) 14.1 -0.7 18.5 14th 3.6 +0.3 -2.8 24th 71.6 46.8 high 153%
Edi Upper 21.1 -0.1 25.6 11th 8.6 +0.4 3.0 22nd 14.2 57.4 v low 25%
Falls Creek 9.0 -0.7 14.0 11th 3.1 +0.1 -3.2 19th 55.4 79.7 low 70%
Mount Buller 9.3 -0.6 14.6 8th 3.5 -0.1 -3.0 19th 53.0 103.8 low 51%
Mount Hotham 7.3 -1.0 12.1 8th 2.3 -0.2 -4.1 19th 82.8 94.4 average 88%
Omeo 18.5   24.3 14th 5.6   -0.6 21st 42.6
East Gippsland (district 84)
Combienbar AWS 18.1 +0.5 23.8 12th 10.1 +0.6 3.9 19th 108.6 76.4 high 142%
Gabo Island Lighthouse 20.3 +1.1 26.0 28th 13.9 +0.4 9.6 21st 31.6 83.6 low 38%
Gelantipy 16.7 +0.3 22.9 14th 7.7 +0.8 2.0 21st 78.8 53.0 high 149%
Lakes Entrance (Eastern Beach Road) 19.9   26.5 27th 11.5   7.6 21st 39.6
Mallacoota 20.3 +0.4 26.8 13th 11.7 +0.1 7.3 21st 23.6 90.3 low 26%
Mount Nowa Nowa 19.4 +0.2 24.6 13th 11.1 +0.5 5.9 21st 69.0 76.4 average 90%
Orbost 21.1 +0.2 26.9 13th 11.4 +0.8 5.3 21st 62.0 74.0 average 84%
Point Hicks (Lighthouse) 20.7 +0.9 28.4 13th 13.7 +0.6 8.9 21st 40.2 84.6 low 48%
West Gippsland (district 85)
Bairnsdale Airport 20.4 -0.3 26.1 7th 9.9 +1.3 2.8 21st 35.4 55.1 average 64%
East Sale Airport 20.2 -0.1 26.6 7th 9.2 +0.6 1.4 21st 50.6 47.8 average 106%
Morwell (Latrobe Valley Airport) 20.5 0.0 26.5 7th 8.8 +0.1 2.1 21st 37.0 58.2 low 64%
Mount Baw Baw 9.0 -0.8 14.4 8th 3.3 -0.4 -2.0 19th 76.4 141.0 low 54%
Mount Moornapa 18.4 +0.2 25.1 7th 10.3 +0.5 4.1 21st 45.4 76.3 average 60%
Pound Creek 20.0   27.4 7th 9.5   3.5 16th 25.2
Willow Grove (Blue Rock Reservoir) 19.6 -0.1 25.0 7th 9.5 0.0 4.0 21st 29.7 58.4 low 51%
Wilsons Promontory Lighthouse 17.9 +0.6 24.8 13th 13.6 +0.9 10.1 19th 27.0 84.8 v low 32%
Yarram Airport 20.1   26.8 7th 9.1   1.7 30th 32.4
East Central (district 86)
Bundoora (Latrobe University) 20.7 +0.2 27.2 12th 10.5 +0.8 3.0 21st 33.4 53.8 average 62%
Cerberus 19.9 +0.2 27.1 7th 9.8 -0.1 3.0 30th 18.4 64.2 v low 29%
Coldstream 21.0 +0.6 28.2 12th 7.5 +0.9 -0.8 21st 14.4 59.9 lowest 24%
Coldstream Comparison 21.0   28.2 12th 7.4   -0.8 21st 14.4
Cranbourne Botanic Gardens 20.1 +0.3 27.9 7th 10.7 +0.5 6.0 4th 28.8 71.1 low 41%
Essendon Airport 20.8 +0.7 28.1 7th 10.6 +0.8 4.1 21st 18.8 54.1 low 35%
Ferny Creek 16.7   23.8 12th 9.8   5.5 19th 59.4
Frankston AWS 19.2 0.0 26.2 6th 12.3 0.0 6.6 21st
Melbourne Airport 20.5 +0.2 27.7 7th 10.3 +0.2 5.0 30th 22.6 43.1 low 52%
Melbourne Regional Office 21.3 +1.0 28.2 6th 12.3 +1.5 6.9 21st 27.2 57.1 low 48%
Moorabbin Airport 20.3 +0.2 28.2 7th 10.3 -0.1 1.8 21st 18.0 62.3 v low 29%
Phillip Island Penguin Reserve 19.1 -0.7 27.2 7th 11.4 +0.8 3.2 30th 19.3 63.2 v low 31%
Rhyll 19.6 +0.2 25.6 7th 13.0 +0.5 9.7 30th 17.8 59.9 lowest 30%
Scoresby Research Institute 20.4 +0.4 27.4 12th 9.6 -0.5 3.5 30th 28.4 67.0 v low 42%
Viewbank 20.8 -0.6 28.2 12th 9.9 0.0 3.8 21st 21.4 55.7 low 38%
Wallan (Kilmore Gap) 17.5 +0.6 23.6 10th 9.1 +0.4 3.9 19th 36.2 54.3 average 67%
Wonthaggi 19.7 0.0 27.0 7th 10.6 +0.3 5.4 30th 43.3 79.1 low 55%
West Central (district 87)
Avalon Airport 21.3 +1.0 29.9 7th 10.0 +0.5 2.2 21st 10.2 36.0 low 28%
Breakwater (Geelong Racecourse) 21.2   30.2 7th 10.4   4.0 21st 9.6
Laverton RAAF 20.4 +0.2 28.2 7th 10.4 +0.6 2.6 21st 11.4 45.1 v low 25%
Sheoaks 20.0 +0.9 29.1 7th 8.8 +0.1 2.7 21st 13.6 36.5 low 37%
North Central (district 88)
Castlemaine Prison 21.0 +0.9 27.0 7th 8.3 +0.8 2.5 18th 9.7 40.3 low 24%
Eildon Fire Tower 18.8 +0.6 24.6 12th 9.4 +0.3 4.9 21st 8.0 40.3 lowest 20%
Lake Eildon 21.6 +0.8 26.8 14th 8.2 +0.4 3.0 30th 10.0 59.4 v low 17%
Mangalore Airport 22.7 +1.3 28.2 12th 9.4 +0.9 0.7 21st 5.0 38.4 v low 13%
Maryborough 22.3 +1.7 28.7 7th 9.2 +0.9 3.1 20th 7.6 39.1 v low 19%
Redesdale 22.0 +1.6 27.9 10th 8.3 +1.2 1.5 21st 5.8 40.0 v low 15%
Western Plains (district 89)
Ararat Prison 21.1 +1.6 28.9 7th 6.9 -0.3 1.2 16th 9.1 42.1 low 22%
Ballarat Aerodrome 19.2 +1.6 26.2 7th 7.2 -0.2 0.2 21st 11.0 51.1 v low 22%
Westmere 20.9   28.9 6th 6.6   -0.8 20th 10.8
West Coast (district 90)
Aireys Inlet 19.7 +0.7 26.6 27th 11.8 +0.3 7.4 21st 16.8 49.0 low 34%
Cape Nelson Lighthouse 18.4 +0.2 25.7 6th 12.6 +0.3 7.5 20th 34.8 43.6 average 80%
Cape Otway Lighthouse 17.8 -0.2 25.8 27th 12.1 +0.5 8.3 17th 43.2 71.3 low 61%
Casterton 21.0   30.2 6th 8.5   3.4 16th 23.0
Colac (Mount Gellibrand) 19.9 +0.7 27.0 6th 9.6 -0.3 6.3 29th 9.4 39.0 lowest 24%
Dartmoor 20.6   30.4 6th 8.5   0.5 20th 32.6
Hamilton Airport 20.7 +0.8 28.9 6th 7.9 -0.4 1.1 20th 12.6 38.1 v low 33%
Mortlake Racecourse 21.1 +1.2 29.6 6th 7.4 -0.4 0.8 30th 11.6 42.0 lowest 28%
Port Fairy AWS 19.6 +0.2 30.0 6th 11.0 +0.3 3.4 20th 28.0 50.2 low 56%
Portland (Cashmore Airport) 18.6 +0.1 28.2 6th 10.0 +0.2 1.2 20th 46.4 57.5 average 81%
Portland NTC AWS 18.1   25.6 27th 12.2   5.3 20th
Warrnambool Airport NDB 20.2 +0.1 30.5 6th 8.8 +0.1 0.4 20th 23.6 51.5 low 46%

Notes

This statement was prepared before all data for the period were available. This may affect some of the statistics presented.

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.

This statement has been prepared based on information available at 2 pm on Tuesday 30 April 2013. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

Averages 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 being used for temperature area averages from December 2012 onwards. The major change from earlier datasets is that the ACORN-SAT dataset commences in 1910, rather than 1950, and hence rankings are calculated using a larger set of years.


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