Victoria in 2011: Hot nights and plenty of rain

  • 3rd warmest average night-time temperatures in 102 years of record
  • 12th wettest year in 112 years of record
  • 22nd warmest average daytime temperatures in 102 years of record.

Rainfall

Preliminary rainfall totals indicate that Victoria recorded its 12th wettest year in 112 years of record. Most stations recorded above average rainfall with many falling into the top 10% of their wettest years on record. Exceptional rainfall at the start of the year made a large contribution to the positive annual anomaly. January 2011 was the wettest January on record for Victoria with large parts of the west of the state observing their highest on record January totals. Heavy rainfall from the 4th to the 6th delivered totals of 100 mm to 200 mm over many parts of the state. Major and moderate flooding occurred in north, west and central Victoria. The state average total for January was close to three times its normal amount. February 2011 was the 5th wettest February on record for Victoria. Large parts of the North East district set a new record for their wettest February. The state average total for February was close to four times the normal amount. Extreme rainfall between the 4th and 6th of February delivered daily totals between 100 and 200 mm to Melbournes eastern and south-eastern suburbs. March was again wetter than normal with an area averaged total of about one and a half times the months normal rainfall.

April was the first month of the year when rainfall totals returned to typical levels for most of the state. It was the first month of below average rainfall for the Mallee since July 2010. May was close to normal for most of the state but there were patches of drier than normal in the north and patches of wetter than normal in the south. June was dry for much of the state. East Gippsland was wetter than average and the much of the south was close to normal but large parts of the centre and north were drier than usual. July was mixed with most of the state close to average but most of the Mallee was drier than usual while Gippsland was wetter than normal. Rainfall totals in August where close to average for much of the state but there was a large area of very much drier than normal totals in southern central parts. September was drier than normal in the west of the state. October rainfall was mostly close to average with some wetter than normal patches in the south and a large area of drier than normal totals in northern central Victoria. November was another wet month and it was only south-western Victoria that escaped wetter than normal totals. Most of the state recorded totals close to average for December. There were patches of above average to very much above average in the northwest and patches of below average to very much below average in the southwest.

The wettest station overall was Falls Creek (Rocky Valley) with 2438.8 mm. Some sites had their highest total rainfall on record. The wettest single day was the 5th of February when Mildura Airport recorded 155.0 mm. Some sites had their highest daily rainfall on record. There is a map of rainfall deciles below.

Maximum temperature

Victoria recorded an annual average maximum temperature of 20.19 C in 2011. This was +0.33 C warmer than the 1961-90 average of 19.86 C, making it the 22nd warmest annual average maximum temperature in 102 years of record. Most of the state recorded average maximum temperatures that were close to normal but there were patches of warmer than usual temperatures in the west and along the east coast. For the first five months of the year, average maximum temperatures were normal to very much cooler than normal in Victoria. In contrast the following seven months saw average maximum temperatures range from normal to very much warmer than normal. Maximum temperatures in January were close to normal except for parts of Gippsland. February brought cooler than normal maximums to all of the state except for parts of Gippsland. Victoria recorded an average maximum temperature anomaly of 1.65 C, making it the equal 10th coolest February average maximum temperature on record. Maximum temperatures in March were in the lowest 10% of those recorded for western parts of the state and it was below average elsewhere. It was the 3rd coolest March average maximum temperature for Victoria on record with an anomaly of -1.89 C. Most of the state recorded maximum temperatures close to normal during April except for northeast where they were cooler than usual. May 2011 ranked as the 9th coolest May average maximum temperature on record with temperatures below average across the state.

June was the first month where widespread warmer than normal maximum temperatures were recorded. Parts of Gippsland were close to average. A large area of central and western Victoria recorded maximum temperatures in the warmest 10% of all years of record. July brought warmer than usual maximum temperatures to the centre and north of the state. August was exceptional with most of the state recording maximum temperatures in the warmest 10% of all years of record. A warm spell at the start of the month produced maximum temperatures never seen before so soon after the winter solstice. August 2011 brought the 3rd warmest average maximum temperatures for August on record. September was another warm month with most of western Victoria recording maximum temperatures in the warmest 10% of all years of record. Maximum temperatures in the east were also warmer than usual. September 2011 ranked as the 5th warmest average maximum temperatures for September on record. Maximum temperatures were generally warmer than normal during October except for parts of Gippsland. Maximum temperatures in the south were in the warmest 10% of all years of record for November. In the north the maximum temperatures were less unusual but still warmer than normal. November 2011 ranked as the 8th warmest average maximum temperatures for November on record. Average maximum temperatures were close to average in the centre of the state during December, tending to below average in the east and above average in the southwest.

The hottest day was the 1st of February when Walpeup Research recorded 42.3 C. Mildura Airport recorded the warmest days on average with 24.1 C, whilst Mount Hotham recorded the coolest on average with 7.6 C. Mount Hotham also recorded the coolest day for the year, twice, with -4.1 C on the 11th of May and the 7th of June. There is a map of maximum temperature anomalies below.

Minimum temperature

Victoria recorded an annual average minimum temperature 9.07 C in 2011. This was +0.73 C warmer than the 1961-90 average of 8.34 C, making it the 3rd warmest annual average minimum temperature in 102 years of record. Minimum temperatures in the south were generally very much above average (in the top 10% of all years of record) tending to above average in the north. The first three months of the year recorded warmer than usual minimum temperatures before they returned to more average conditions from April to June.

The year started with exceptionally warm minimum temperatures. The east of the state recorded minimum temperatures in the warmest 10% of all years of record, and minimum temperatures in parts of East Gippsland were the warmest on record. January 2011 ranked as the 7th warmest average minimum temperatures for January on record. Minimum temperatures were warmer than normal over almost all of the state in February. March was the first month of the year when the majority of Victoria experienced minimum temperatures close to normal. There were still some patches of above average minimums in the south, east and west.

April was much closer to normal compared to the first three months of the year. Most of Victoria recorded typical minimum temperatures; there was a patch of cooler than normal minimums in the northeast, and a patch of warmer than normal minimums in the southwest. May minimums were generally close to normal except for the northeast and along the Vic./NSW border where they were bellow average to very much bellow average. Average minimum temperatures during June were close to normal in most places except for a band of cooler than normal minimum temperatures running through the centre of the state.

July average minimum temperatures were close to normal in the north but warmer than usual in the south. Large parts of the southwest recorded minimum temperatures in the warmest 10% of all years of record. August was an exceptional month for minimum temperatures with some small patches of highest on record but a large portion of the state reporting minimum temperatures in the warmest 10% of all years of record. A warm spell at the start of the month produced minimum temperatures never seen before so soon after the winter solstice. August 2011 ranked equal 9th as the warmest average minimum temperatures for August on record. September average minimums were close to normal across much of the state but there were areas of cooler than normal in the north and warmer than normal in the south and east. October saw warmer than usual average minimum temperatures across the state with the southwest and southern central parts observing minimums in the warmest 10% of all years of record. October 2011 ranked as the 4th warmest average minimum temperatures for October on record. November delivered very much warmer than normal minimums to most of the state. November 2011 ranked as the 4th warmest average minimum temperatures for November on record. Average minimum temperatures in December were very much warmer than normal in the southwest tending to above average in the centre, elsewhere they were close to average.

The coldest night was the 12th of September when Mount Hotham recorded -7.9 C. Mount Hotham also recorded the coolest nights on average with 1.9 C. The warmest nights on average were at Gabo Island Lighthouse with 12.7 C. The warmest night was the 1st of February when Nhill Aerodrome recorded 27.3 C. Some sites had their highest mean daily minimum temperature on record. There is a map of minimum temperature anomalies below.

Wind

The strongest wind gust was at Wilsons Promontory Lighthouse with 146 km/h on 5 Jul.

Some significant weather events in 2011

Rain:  Heavy rainfall from the 4th to the 6th of February delivered totals of 100 mm to 200 mm over many parts of the state. Major and moderate flooding occurred in north, west and central Victoria.

Heatwave: A warm spell at the start of August produced maximum and minimum temperatures never seen before so soon after the winter solstice.

Hail: Showers and thunderstorms on Christmas day affected most of the state and produced large hail over parts of Melbourne.

Further information

Media
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Extremes in 2011
Hottest day 42.3 C at Walpeup Research on 1 Feb
Warmest days on average 24.1 C at Mildura Airport
Coolest days on average 7.6 C at Mount Hotham
Coldest day -4.1 C at Mount Hotham on 11 May and 7 Jun
Coldest night -7.9 C at Mount Hotham on 12 Sep
Coolest nights on average 1.9 C at Mount Hotham
Warmest nights on average 12.7 C at Gabo Island Lighthouse
Warmest night 27.3 C at Nhill Aerodrome on 1 Feb
Warmest on average overall 17.3 C at Mildura Airport
Coolest on average overall 4.8 C at Mount Hotham
Wettest overall 2438.8 mm at Falls Creek (Rocky Valley)
Wettest day 155.0 mm at Mildura Airport on 5 Feb
Highest wind gust 146 km/h at Wilsons Promontory Lighthouse on 5 Jul

Maps

Anomaly in mean maximum temperature for all of Australia

Map of Anomaly in mean maximum temperature for Victoria

Anomaly in mean minimum temperature for all of Australia

Map of Anomaly in mean minimum temperature for Victoria

Rainfall deciles

Map of Rainfall deciles


Record highest annual daily rainfall
Highest daily rainfall
in 2011 (mm)
Previous annual
wettest
Years of
record
Ballan 119.4 on 5 Feb 118.4 on 1 Dec 1933 137
Beechworth Composite 122.0 on 5 Feb 110.7 on 1 Apr 1959 130
Wedderburn (Post Office) 111.0 on 4 Feb 78.8 on 22 Mar 1983 129
Nelson 113.2 on 14 Jan 90.2 on 18 Feb 1946 127
Nyah (Yarraby Tank) 127.0 on 10 Jan 99.6 on 21 Jan 1979 116
Moe Gippsland Water 123.6 on 23 Mar 120.9 on 1 Dec 1934 115
Carisbrook 96.8 on 14 Jan 89.4 on 23 Oct 1916 114
Rainbow (Werrap (Oak-Lea)) 116.4 on 12 Jan 105.4 on 5 Mar 1910 114
Gerang Gerung 146.8 on 12 Jan 124.5 on 6 Feb 1957 113
Indigo 106.0 on 5 Feb 78.2 on 28 Feb 1939 110
Rupanyup (Post Office) 90.0 on 14 Jan 76.5 on 28 Dec 1929 107
Oakleigh (Metropolitan Golf Club) 138.7 on 5 Feb 109.0 on 3 Feb 2005 100
Cheltenham Kingston Centre 112.0 on 5 Feb 111.8 on 15 Nov 1920 98
Meredith (Darra) 136.0 on 5 Feb 125.2 on 6 Feb 1973 98
Boort (Gredgwin) 72.6 on 10 Jan 71.6 on 1 Feb 1971 95
Speed (Post Office) 90.0 on 12 Jan 81.3 on 9 Feb 1969 85
Lake Boga (Kunat) 94.0 on 10 Jan 88.2 on 12 Nov 1998 79
Pirlta 103.0 on 5 Feb 88.9 on 25 Feb 1939 79
Rainbow Post Office 131.0 on 12 Jan 118.4 on 7 Mar 1910 76
Red Cliffs (Post Office) 83.4 on 12 Jan 82.3 on 24 Mar 1969 75
Mildura Airport 155.0 on 5 Feb 91.2 on 24 Mar 1969 66
Moorabbin Airport 140.8 on 5 Feb 91.0 on 13 Jan 1998 61
Baynton 94.4 on 14 Jan 86.4 on 1 Jan 1970 59
Bonbeach (Carrum) 112.0 on 5 Feb 98.0 on 3 Feb 2005 57
Apsley (Post Office) 115.0 on 14 Jan 96.8 on 16 Nov 1970 55
Horsham 91.4 on 12 Jan 81.3 on 6 Feb 1973 54
Halls Gap 146.6 on 14 Jan 132.0 on 21 Feb 2003 52
Creswick 125.0 on 5 Feb 91.9 on 6 Feb 1973 51
Dandenong 132.4 on 5 Feb 111.2 on 3 Feb 2005 48
Castlemaine Prison 101.2 on 5 Feb 91.2 on 13 Jan 1973 46
Kotta 75.0 on 5 Feb 72.4 on 12 Nov 1998 45
Moliagul 92.0 on 14 Jan 86.0 on 15 Jan 1974 44
Telangatuk East (Milingimbi) 95.0 on 12 Jan 80.0 on 8 Dec 2010 44
Kyneton 109.0 on 13 Jan 100.0 on 21 Mar 1989 43
Longwarry (Gooneparoo) 100.2 on 5 Feb 84.1 on 6 Feb 1973 43
Smeaton (Blampied (Bardia)) 91.0 on 14 Jan 77.2 on 6 Feb 1973 43
Baringhup (Blue Hills) 128.6 on 5 Feb 116.2 on 24 Oct 2000 40
Benloch 110.0 on 14 Jan 91.0 on 1 Jan 1988 40
Glen Waverley (Golf Course) 147.4 on 5 Feb 130.4 on 3 Feb 2005 39
Berwick (Buchanan Road) 150.0 on 5 Feb 126.0 on 3 Feb 2005 33
Kangaroo Ground 99.6 on 5 Feb 94.4 on 3 Feb 2005 28
Morwell (Latrobe Valley Airport) 70.0 on 12 Apr 62.7 on 21 Apr 1984 28
Beechworth Woolshed 110.8 on 5 Feb 87.5 on 26 Dec 1988 26
Doncaster (Manningham Depot) 103.6 on 5 Feb 101.6 on 3 Feb 2005 25
Bendigo Airport 66.4 on 5 Feb 64.6 on 16 Mar 1996 21



Record highest total annual rainfall
Total rainfall
for 2011 (mm)
Previous annual
wettest
Years of
record
Annual
average
Mildura Airport 658.2 591.2 in 2010 65 293.1
Bundoora (Latrobe University) 955.7 860.8 in 1992 31 674.6
Noojee (Slivar) 1401.5 1359.4 in 1995 29 1128.4
Willow Grove (Blue Rock Reservoir) 990.7 927.2 in 1995 25 754.1
Morwell (Latrobe Valley Airport) 947.4 927.0 in 1991 24 747.0
Beechworth Woolshed 1096.8 1046.8 in 1988 23 783.0



Record highest annual mean daily minimum temperature
Mean daily minimum
temperature
for 2011 (C)
Previous annual
warmest
Years of
record
Annual
average
Ararat Prison 8.3 8.1 in 2007 41 6.9
Portland (Cashmore Airport) 9.9 = 9.9 in 1990 27 9.2
Noojee (Slivar) 8.1 8.0 in 2010 25 7.1


Summary statistics for 2011
Maximum temperatures
(C)
Minimum temperatures
(C)
Rainfall
(millimetres)
Mean
for
2011
Diff
from
average
Highest
for
2011
Mean
for
2011
Diff
from
average
Lowest
for
2011
Total
for
2011
Average
annual
total
Rank
of
2011
Fraction
of annual
average
Southwest Slopes (South) (district 72)
Albury Airport AWS 21.7 -0.6 39.8 1 Feb 9.3 +0.3 -1.6 15 Jul 874.0 611.5 high 143%
Hume Reservoir 39.4 1 Feb 10.4 +0.5 -0.6 11 Jun 926.0 696.4 high 133%
North Mallee (district 76)
Mildura Airport 24.1 +0.4 41.9 1 Feb 10.6 +0.3 -0.9 8 Jul 658.2 293.1 highest 225%
Ouyen (Post Office) 23.7 +0.1 41.9 1 Feb 10.3 +0.7 0.1 23 Jul 487.7 333.8 v high 146%
Walpeup Research 23.6 +0.5 42.3 1 Feb 10.3 +0.5 0.0 9 Jun 448.0 339.7 high 132%
South Mallee (district 77)
Hopetoun Airport 23.5 42.2 31 Jan 9.0 -4.5 27 Jul 483.6
Swan Hill Aerodrome 23.6 -0.1 41.0 1 Feb 9.5 +0.3 -2.9 27 Jul 441.6 318.3 high 139%
North Wimmera (district 78)
Nhill Aerodrome 22.2 41.0 31 Jan 9.0 -0.8 22 Jul 434.2
Warracknabeal Museum 22.4 +0.1 41.6 31 Jan 9.1 +0.4 -1.5 27 Jul 531.2 402.7 high 132%
South Wimmera (district 79)
Edenhope Airport 20.5 39.8 30 Jan 9.1 -1.0 15 Jun 638.4
Grampians (Mount William) 12.0 30.2 30 Jan 5.1 -2.2 8 Jun 1408.0
Horsham Aerodrome 21.7 -0.4 39.8 31 Jan 7.7 +0.6 -2.7 15 Jun 536.0 386.3 v high 139%
Horsham Polkemmet Rd 21.8 +0.3 39.7 31 Jan 8.1 -0.1 -3.5 15 Jun 549.5 448.0 high 123%
Kanagulk 20.4 40.3 30 Jan 8.7 -1.2 1 Jun 626.8
Longerenong 21.7 +0.3 41.6 31 Jan 8.3 +0.4 -1.7 1 Jun 554.8 418.8 high 132%
Pyrenees (Ben Nevis) 14.9 32.2 1 Feb 7.0 -1.5 24 Jul 931.4
Stawell Aerodrome 20.0 -0.6 39.6 31 Jan 9.1 +0.8 -0.8 10 May 618.0 501.5 high 123%
Lower North (district 80)
Charlton 22.6 41.9 31 Jan 9.2 -1.7 27 Jul 449.8
Echuca Aerodrome 22.5 +0.3 40.9 1 Feb 8.9 -0.4 -1.9 15 Jul 633.2 428.1 v high 148%
Kerang 23.2 +0.3 41.4 1 Feb 10.1 +0.7 -0.4 27 Jul 493.0 375.2 high 131%
Kyabram DPI 22.1 +0.5 40.7 31 Jan 8.9 +0.4 -2.1 27 Jul 656.8 448.7 v high 146%
Upper North (district 81)
Bendigo Airport 20.8 -0.1 40.0 1 Feb 8.5 +0.8 -3.1 27 Jul 761.0 519.2 high 147%
Shepparton Airport 21.7 -0.7 39.4 1 Feb 8.7 +0.2 -2.8 15 Jul 631.2 449.3 high 140%
Tatura Inst Sustainable Ag 21.4 +0.1 39.1 31 Jan 8.7 +0.4 -2.6 15 Jul 633.5 485.2 v high 131%
Yarrawonga 22.7 -0.2 41.9 31 Jan 9.2 +0.3 -2.1 12 Sep 649.4 451.2 high 144%
Lower Northeast (district 82)
Benalla Airport 21.7 40.1 31 Jan 8.6 -1.9 12 Sep 797.0
Corryong Airport 20.8 38.9 1 Feb 6.7 -5.0 15 Jul 1034.6
Dartmouth Reservoir 20.0 -0.5 37.1 1 Feb -2.4 29 Jul 1219.6 1012.4 high 120%
Hunters Hill 16.2 -0.1 33.1 1 Feb 7.9 0.0 -2.1 8 Jun 1454.8 1186.1 high 123%
Rutherglen Research 21.7 0.0 39.9 31 Jan 7.3 0.0 -4.2 15 Jul 794.4 587.2 high 135%
Strathbogie 18.2 -0.3 35.4 1 Feb 6.5 +0.4 -4.1 8 Sep 948.4 968.7 average 98%
Wangaratta Aero 21.7 -0.4 40.5 31 Jan 7.9 +0.4 -3.6 11 Jun 699.2 614.3 average 114%
Upper Northeast (district 83)
Dinner Plain (Mount Hotham Airport) 14.1 -0.4 29.3 1 Feb 3.2 0.0 -7.0 15 Jul 928.2 769.9 high 121%
Falls Creek 9.3 0.0 24.2 1 Feb 2.7 +0.2 -7.0 12 Sep 1741.4 1258.4 high 138%
Mount Hotham 7.6 -0.3 22.8 1 Feb 1.9 0.0 -7.9 12 Sep 1927.0 1405.6 high 137%
Omeo 17.8 35.3 31 Jan 5.4 -5.3 16 Jul 736.8
East Gippsland (district 84)
Combienbar AWS 17.8 -0.2 38.4 31 Jan 9.1 +0.2 0.7 8 Jul 1177.8 964.4 high 122%
Gabo Island Lighthouse 18.5 +0.7 32.0 9 Mar 12.7 +0.5 5.1 10 Jul 844.3 943.5 average 89%
Gelantipy 16.0 -0.4 36.0 31 Jan 6.8 +0.2 -2.2 8 Jul 1133.0 761.5 v high 149%
Lakes Entrance (Eastern Beach Road) 19.3 41.4 1 Feb -1.3 16 Jul 965.1
Mallacoota 19.3 -0.1 41.6 1 Feb 11.1 +0.4 0.4 10 Jul 1010.2 928.5 high 109%
Mount Nowa Nowa 18.5 -0.4 39.7 1 Feb 10.1 +0.2 2.5 8 Jul 1308.6 820.6 v high 159%
Orbost 20.0 -0.4 41.3 1 Feb 10.3 +0.4 -0.5 16 Jul 1081.0 770.0 v high 140%
Point Hicks (Lighthouse) 19.3 +0.3 40.4 1 Feb 12.2 +0.2 4.0 14 May 1138.8 959.1 high 119%
West Gippsland (district 85)
Bairnsdale Airport 20.1 0.0 41.6 1 Feb 8.5 +0.3 -3.4 16 Jul 737.4 644.7 high 114%
East Sale Airport 19.6 0.0 40.0 1 Feb 8.7 +0.6 -3.6 16 Jul 690.4 598.9 high 115%
Morwell (Latrobe Valley Airport) 19.8 -0.2 40.5 1 Feb 8.6 +0.4 -2.4 16 Jul 947.4 747.0 highest 127%
Mount Baw Baw 8.8 -0.6 25.2 31 Jan 2.8 -0.2 -5.9 12 Sep 2162.0
Mount Moornapa 17.8 -0.6 39.3 1 Feb 9.2 +0.1 0.9 8 Jul 1144.8 825.4 v high 139%
Noojee (Slivar) 18.4 -0.1 37.2 1 Feb 8.1 +1.0 -0.9 16 Jul 1401.5 1128.4 highest 124%
Pound Creek 19.0 39.2 1 Feb 9.3 -1.0 15 Jun 935.4
Yarram Airport 19.2 41.3 1 Feb 8.4 -2.9 16 Jul 828.4
East Central (district 86)
Bundoora (Latrobe University) 20.0 0.0 40.3 1 Feb 10.2 +0.6 -0.1 16 Jul 955.7 674.6 highest 142%
Cerberus 19.0 0.0 37.8 1 Feb 10.2 +0.5 -1.0 16 Jul 873.4 727.1 high 120%
Coldstream 20.1 -0.2 38.8 1 Feb 8.3 +1.1 -2.1 16 Jun 1158.0 745.0 v high 155%
Coldstream Comparison 20.0 38.8 1 Feb 8.2 -2.2 16 Jun 1155.4
Cranbourne Botanic Gardens 19.2 -0.1 38.5 1 Feb 9.9 +0.3 0.0 16 Jul
Essendon Airport 20.0 +0.4 40.3 1 Feb 10.2 +1.1 -1.1 16 Jul 731.0 593.5 high 123%
Frankston AWS 18.7 +0.2 32.1 31 Dec 12.1 +0.5 3.6 23 Jul
Melbourne Airport 19.9 +0.2 39.4 1 Feb 9.8 +0.3 0.1 16 Jul 678.6 548.8 high 124%
Melbourne Regional Office 20.9 +1.1 40.2 1 Feb 12.0 +1.8 2.7 27 Jul 834.6 649.8 v high 128%
Moorabbin Airport 19.7 0.0 39.5 1 Feb 10.6 +0.6 -0.9 16 Jul 960.6 718.2 v high 134%
Rhyll 18.7 +0.2 35.1 30 Jan 12.1 +0.5 4.2 16 Jul 830.8 679.3 high 122%
Scoresby Research Institute 19.9 +0.4 38.9 1 Feb 9.9 +0.4 -0.6 16 Jul 1071.6 866.7 high 124%
Viewbank (ARPANSA) 20.2 -0.6 40.1 1 Feb 10.0 +0.2 -0.3 10 May 1074.6 685.0 v high 157%
Wallan (Kilmore Gap) 16.2 -0.4 35.2 1 Feb 8.2 +0.3 0.5 7 Sep 936.0 694.5 high 135%
Wonthaggi 19.2 +0.4 38.0 1 Feb 10.2 +0.6 1.5 16 Jul 1075.5 935.9 high 115%
West Central (district 87)
Avalon Airport 20.0 -0.2 39.2 1 Feb 9.5 +0.3 -2.1 16 Jul 696.0 460.6 v high 151%
Laverton RAAF 19.8 +0.1 40.5 1 Feb 10.0 +0.7 -1.8 16 Jul 767.4 543.2 v high 141%
Sheoaks 18.7 0.0 37.1 1 Feb 8.6 +0.2 -2.3 16 Jul 683.2 502.6 high 136%
North Central (district 88)
Castlemaine Prison 19.3 -0.5 39.0 1 Feb 8.1 +0.5 -2.6 10 May 822.2 598.9 v high 137%
Eildon Fire Tower 17.1 -0.7 34.7 31 Jan 8.6 +0.2 0.1 8 Jun 883.0 648.9 high 136%
Lake Eildon 20.4 0.0 38.5 1 Feb 8.4 +0.5 -0.8 15 Jul 984.0 853.3 high 115%
Mangalore Airport 20.8 -0.2 38.8 1 Feb 8.7 +0.4 -3.0 8 Jun 740.8 575.8 high 129%
Maryborough 20.5 0.0 39.2 1 Feb 8.6 +0.6 -1.2 27 Jul 725.1 530.0 v high 137%
Redesdale 20.2 0.0 39.5 31 Jan 7.5 +0.2 -2.6 12 Sep 727.4 580.9 high 125%
Western Plains (district 89)
Ararat Prison 19.6 +0.6 38.7 31 Jan 8.3 +1.4 -2.6 1 Jun 652.7 593.8 average 110%
Ballarat Aerodrome 17.5 +0.1 36.3 1 Feb 7.5 +0.5 -2.9 10 May 795.8 695.7 high 114%
Westmere 19.4 38.0 30 Jan 7.9 -1.7 10 May 553.6
West Coast (district 90)
Aireys Inlet 18.2 +0.1 38.1 30 Jan 11.0 +0.5 3.7 16 Jul 707.6 629.5 high 112%
Cape Nelson Lighthouse 17.7 +0.2 35.4 30 Jan 11.8 +0.4 3.4 16 Jul 778.4 701.9 average 111%
Cape Otway Lighthouse 17.4 +0.1 35.7 7 Jan 11.7 +1.1 4.7 8 Aug 814.7 895.4 average 91%
Casterton 19.3 38.0 30 Jan 8.6 -1.1 15 Jul 955.6
Colac (Mount Gellibrand) 17.9 -0.3 35.9 30 Jan 9.0 +0.3 2.1 7 Jul 645.8 541.7 high 119%
Dartmoor 19.3 39.8 30 Jan 9.0 -0.9 1 Jun 941.0
Hamilton Airport 19.0 -0.1 37.4 30 Jan 8.0 +0.4 -0.5 6 Jun 715.0 621.2 high 115%
Mortlake Racecourse 19.2 +0.2 36.6 30 Jan 8.0 +0.6 -1.5 1 Jun 702.4 582.7 high 121%
Port Fairy AWS 18.5 0.0 38.3 7 Jan 11.0 +0.7 2.0 31 May 832.0 684.7 high 122%
Portland (Cashmore Airport) 17.7 +0.2 35.4 7 Jan 9.9 +0.7 0.9 31 May 941.0 824.5 high 114%
Warrnambool Airport NDB 18.7 -0.2 36.6 30 Jan 9.0 +0.7 -1.2 12 Aug 868.6 733.1 high 118%

Notes

A Annual 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 8 am on Tuesday 3 January 2012. 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.

Further information

Media
(03) 9669 4057
Enquiries