Victoria in autumn 2011: Cold days

  • The coldest average autumn daytime temperatures on record for many stations
  • Record breaking rain in parts of Gippsland
  • Average night-time temperatures mixed and generally close to normal

Rainfall

Provisional data indicates that autumn 2011 rainfall was close to normal for most of Victoria. The exception to this was parts of Gippsland were rainfall was well above average. Mount Baw Baw recorded the largest total for the season with 542.0 mm. Several stations in West Gippsland recorded their highest total autumn rainfall on record. Parts of the state recorded above average rainfall during March and then most of the state recorded close to average rainfall during April and May. The wettest single day of the season was the 23rd of March when Thorpdale Peak recorded 139.8 mm. Some sites had their highest autumn daily rainfall on record. There is a map of rainfall deciles below.

Temperature

Maximum temperature

Victoria is on track to record it 4th coolest average autumn daytimes. Across the state, weather stations broke their autumn average maximum temperature records. Stations that weren't breaking records were still very much cooler than usual. Most stations recorded average maximum temperatures that were up to 2 C cooler than normal. The hottest day for the season was the 7th of March when Hopetoun Airport recorded 34.5 C . The warmest days on average were at Swan Hill Aerodrome with 22.5 C. The coolest days on average were at Mount Hotham with 7.5 C. The coldest day was the 11th of May when Mount Hotham recorded a maximum of -4.1 C. Some sites had their coldest autumn day (lowest maximum temperature) on record. Some sites had their lowest autumn mean daily maximum temperature on record. There is a map of maximum temperature anomalies below.

Minimum temperature

Average night-time temperatures during Autumn were mixed. Parts of the southwest and Gippsland recorded average minimum temperatures that were slightly warmer than usual whilst elsewhere they were slightly cooler than usual. Most stations recorded average maximum temperatures that were within 1 C of their long-term mean. There were some exceptions and a couple of stations recorded their lowest autumn mean daily minimum temperature on record. The coldest night was the 12th of May when Falls Creek recorded -6.7 C, a couple of stations recorded their lowest autumn temperature on record.. The coolest nights on average were at Mount Hotham with 1.8 C. The warmest nights on average were at Gabo Island Lighthouse with 13.3 C. The warmest night was the 8th of March when Port Fairy AWS recorded 22.0 C which was their warmest autumn night (highest daily minimum temperature) on record. . There is a map of minimum temperature anomalies below.

Further information

Media
(03) 9669 4057
Enquiries

Extremes in autumn 2011
Hottest day 34.5 C at Hopetoun Airport on 7 Mar
Warmest days on average 22.5 C at Swan Hill Aerodrome
Coolest days on average 7.5 C at Mount Hotham
Coldest day -4.1 C at Mount Hotham on 11 May
Coldest night -6.7 C at Falls Creek on 12 May
Coolest nights on average 1.8 C at Mount Hotham
Warmest nights on average 13.3 C at Gabo Island Lighthouse
Warmest night 22.0 C at Port Fairy AWS on 8 Mar
Warmest on average overall 16.2 C at Gabo Island Lighthouse
16.2 C at Melbourne Regional Office
Coolest on average overall 4.7 C at Mount Hotham
Wettest overall 542.0 mm at Mount Baw Baw
Wettest day 139.8 mm at Thorpdale Peak on 23 Mar
Highest wind gust 133 km/h at Wilsons Promontory Lighthouse on 14 May

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


Record highest autumn daily rainfall
Highest daily rainfall
in autumn 2011 (mm)
Previous wettest
for autumn
Years of
record
Moe Gippsland Water 123.6 on 23 Mar 80.3 on 5 Mar 1947 114
Bealiba 77.4 on 1 Mar 71.6 on 7 Apr 1939 111
Trafalgar Toseland Road 85.0 on 23 Mar 63.8 on 22 Mar 1983 107
Fish Creek 110.0 on 23 Mar 75.9 on 22 Mar 1970 80
Bass 63.0 on 12 Apr 61.0 on 15 Apr 1940 60
Yanakie (Shallow Inlet) 123.0 on 23 Mar 63.6 on 20 May 1978 45
Tutye (Bunurouk) 60.0 on 24 Mar 41.4 on 16 Mar 1996 43
Buffalo 74.8 on 23 Mar 66.0 on 16 May 1974 42
Nyora (Post Office) 62.0 on 14 Apr 60.0 on 30 Apr 1974 41
East Tarwin (Mirboo Pastoral Company) 85.0 on 23 Mar 74.0 on 24 Apr 2004 40
Hawthorn (Scotch College) 57.3 on 12 Apr 54.6 on 12 May 1978 39
Cann River 112.0 on 22 Mar 102.4 on 20 May 1978 37
Morwell (Latrobe Valley Airport) 70.0 on 12 Apr 62.7 on 21 Apr 1984 28
Fernshaw 62.2 on 10 Apr 53.8 on 27 Apr 1990 25
Wangarabell 241.4 on 23 Mar 140.4 on 22 Apr 2001 23
Peterborough (The Lodge) 49.4 on 11 Apr 45.0 on 30 May 2007 21
Cape Liptrap (Illawong) 94.0 on 23 Mar 50.0 on 15 May 1999 20
Stony Creek 65.4 on 22 Mar 49.4 on 6 Apr 2006 19
Combienbar AWS 92.2 on 22 Mar 77.0 on 22 Apr 2002 17
Port Fairy AWS 50.6 on 11 Apr 34.0 on 5 Apr 2000 17
Warrnambool Airport NDB 74.6 on 11 Apr 61.6 on 20 Mar 2003 13
Viewbank (ARPANSA) 67.2 on 12 Apr 53.0 on 24 Apr 2001 12
Traralgon Creek at Koornalla 48.6 on 12 Apr 41.0 on 23 Apr 2001 11
Yarra River @ Warrandyte 64.0 on 12 Apr 53.8 on 24 Apr 2001 11



Record highest total autumn rainfall
Total rainfall
for autumn 2011 (mm)
Previous wettest
for autumn
Years of
record
Average for
autumn
Morwell (Latrobe Valley Airport) 267.2 236.8 in 1989 28 158.8
Willow Grove (Blue Rock Reservoir) 259.3 248.8 in 1990 26 165.3
Coldstream 262.4 252.8 in 1999 17 173.7
Combienbar AWS 348.8 328.2 in 2002 17 209.1
Mortlake Racecourse 184.4 183.4 in 2000 17 124.6
Port Fairy AWS 215.2 213.0 in 2007 17 148.4
Foster Hoddle 476.8 341.8 in 2001 14 245.2
Maffra 170.5 154.2 in 2004 14 103.7
Mount Baw Baw 542.0 511.4 in 2006 13 358.2
Warrnambool Airport NDB 302.2 262.4 in 2000 13 168.6
Viewbank (ARPANSA) 260.8 233.6 in 2001 12 153.4
Orbost 287.6 283.2 in 2001 11 181.6



Record lowest autumn daily maximum temperature
Lowest daily maximum
temperature
in autumn 2011 (C)
Previous coolest
for autumn
Years of
record
Average for
autumn
Willow Grove (Blue Rock Reservoir) 8.4 on 11 May 9.7 on 29 May 2000 24 19.9
Falls Creek -3.0 on 11 May -2.7 on 15 May 1993 21 10.0
Combienbar AWS 6.8 on 14 May 7.2 on 7 Apr 1997 17 17.8
Mount Nowa Nowa 8.9 on 11 May = 8.9 on 27 Apr 2008 16 19.2
Eildon Fire Tower 4.4 on 11 May 5.1 on 27 May 2000 15 18.4



Record lowest autumn mean daily maximum temperature
Mean daily maximum
temperature
for autumn 2011 (C)
Previous coolest
for autumn
Years of
record
Average for
autumn
Strathbogie 17.4 17.5 in 1996 33 19.1
Dartmouth Reservoir 19.2 19.4 in 1995 32 20.9
Hamilton Airport 17.9 18.7 in 2006 26 20.0
Gelantipy 14.9 = 14.9 in 1994 18 16.6
Albury Airport AWS 20.8 21.3 in 1995 17 22.6
Avalon Airport 19.4 = 19.4 in 1996 15 20.6
Mount Nowa Nowa 17.7 17.8 in 1996 15 19.2
Stawell Aerodrome 19.1 20.0 in 1996 15 20.9
Eildon Fire Tower 16.3 17.2 in 1997 14 18.4
Shepparton Airport 20.5 21.8 in 1999 14 22.6
Swan Hill Aerodrome 22.5 22.7 in 2006 14 23.7
Horsham Aerodrome 20.7 21.3 in 1998 13 22.3
Mount Baw Baw 8.6 8.7 in 2006 12 10.3
Warrnambool Airport NDB 18.3 18.9 in 2006 12 19.9
Viewbank (ARPANSA) 19.6 20.3 in 2006 11 21.3
Colac (Mount Gellibrand) 17.2 18.2 in 2006 10 19.1
Dinner Plain (Mount Hotham Airport) 13.7 14.2 in 2006 10 15.0
Orbost 19.5 19.9 in 2006 10 20.8

Record highest autumn daily minimum temperature
Highest daily minimum
temperature
in autumn 2011 (C)
Previous warmest
for autumn
Years of
record
Average for
autumn
Port Fairy AWS 22.0 on 8 Mar 21.6 on 4 Mar 2004 20 10.9



Record lowest autumn temperature
Lowest temperature
in autumn 2011 (C)
Previous coolest
for autumn
Years of
record
Average for
autumn
Edi Upper -0.8 on 12 May = -0.8 on 30 May 2000 25 8.5
Viewbank (ARPANSA) -0.3 on 10 May -0.1 on 30 Apr 2009 12 10.1



Record lowest autumn mean daily minimum temperature
Mean daily minimum
temperature
for autumn 2011 (C)
Previous coolest
for autumn
Years of
record
Average for
autumn
Mount Baw Baw 2.8 3.0 in 2006 12 3.9
Dinner Plain (Mount Hotham Airport) 2.7 = 2.7 in 2009 10 3.5


Summary statistics for autumn 2011
Maximum temperatures
for autumn
(C)
Minimum temperatures
for autumn
(C)
Rainfall
for autumn
(millimetres)
Mean for
autumn
2011
Diff
from
average
Highest for
autumn
2011
Mean for
autumn
2011
Diff
from
average
Lowest for
autumn
2011
Total for
autumn
2011
Average
for
autumn
Rank of
autumn
2011
Fraction of
autumn
average
Southwest Slopes (South) (district 72)
Albury Airport AWS 20.8 -1.8 29.3 13 Mar 8.4 -0.3 -0.7 15 May 113.0 112.7 average 100%
Hume Reservoir 28.5 8 Mar 9.7 -0.6 0.8 15 May 128.9 153.6 average 84%
North Mallee (district 76)
Mildura Airport 22.3 -1.3 33.2 13 Mar 10.0 -0.5 0.0 16 May 147.8 63.5 v high 233%
Ouyen (Post Office) 22.3 -1.3 33.2 7 Mar 9.8 -0.1 0.6 17 May 70.4 73.4 average 96%
Walpeup Research 22.3 -0.7 34.1 7 Mar 10.0 -0.3 2.3 9 May 87.8 75.3 average 117%
South Mallee (district 77)
Hopetoun Airport 22.4 34.5 7 Mar 9.0 -2.3 10 May 60.4
Swan Hill Aerodrome 22.5 -1.2 32.5 7 Mar 9.2 0.0 -0.2 16 May 73.6 57.9 high 127%
North Wimmera (district 78)
Nhill Aerodrome 21.3 34.2 7 Mar 9.0 0.6 10 May 74.2
Warracknabeal Museum 21.4 -1.1 33.0 7 Mar 9.2 +0.1 0.5 10 May 73.8 87.8 average 84%
South Wimmera (district 79)
Edenhope Airport 19.1 34.3 7 Mar 9.0 0.7 31 May 141.8
Grampians (Mount William) 11.2 22.2 12 Mar 5.0 -1.0 11 May 293.0
Horsham Aerodrome 20.7 -1.6 33.3 7 Mar 7.9 +0.7 -1.6 31 May 62.6 73.1 average 86%
Horsham Polkemmet Rd 20.9 -0.8 33.7 7 Mar 8.4 -0.2 -1.1 31 May 59.3 101.2 low 59%
Kanagulk 19.1 33.3 7 Mar 9.0 -0.3 31 May 128.0
Longerenong 20.9 -0.7 33.2 7 Mar 8.5 +0.2 -1.5 10 May 57.4 95.4 low 60%
Pyrenees (Ben Nevis) 13.7 23.4 15 Mar 7.0 -0.1 11 May 199.0
Stawell Aerodrome 19.1 -1.8 30.0 7 Mar 9.1 +0.6 -0.8 10 May 60.6 87.1 low 70%
Lower North (district 80)
Charlton 21.6 31.7 12 Mar 8.8 -0.8 10 May 60.0
Echuca Aerodrome 21.1 -1.3 32.1 13 Mar 8.4 -1.2 -0.7 31 May 124.2 103.8 high 120%
Kerang 21.8 -1.1 32.1 12 Mar 9.6 0.0 1.4 16 May 82.0 88.5 average 93%
Kyabram DPI 21.0 -0.8 32.7 13 Mar 8.3 -0.7 -1.1 31 May 124.0 106.8 high 116%
Upper North (district 81)
Bendigo Airport 19.7 -1.6 30.2 13 Mar 8.4 +0.3 -2.5 10 May 104.6 103.4 average 101%
Shepparton Airport 20.5 -2.1 31.6 13 Mar 8.1 -0.4 -0.6 31 May 147.6 93.0 high 159%
Tatura Inst Sustainable Ag 20.4 -1.3 30.6 13 Mar 8.0 -0.6 -0.8 10 May 138.4 112.9 high 123%
Yarrawonga 21.7 -1.3 31.5 13 Mar 8.8 -0.3 -0.4 10 May 85.6 87.9 average 97%
Lower Northeast (district 82)
Benalla Airport 20.8 30.3 13 Mar 7.7 -0.9 12 May 143.2
Corryong Airport 20.1 28.0 16 Mar 5.6 -3.1 16 May 157.4
Dartmouth Reservoir 19.2 -1.7 27.0 13 Mar -1.2 15 May 184.0 200.8 average 92%
Hunters Hill 15.7 -0.9 23.8 20 Mar 7.6 -0.8 -1.8 12 May 221.6 202.9 average 109%
Rutherglen Research 20.9 -1.2 30.2 13 Mar 6.2 -1.2 -2.9 15 May 98.6 129.1 average 76%
Strathbogie 17.4 -1.7 27.3 13 Mar 5.9 -0.2 -3.0 31 May 152.2 219.3 low 69%
Wangaratta Aero 20.9 -1.7 30.4 13 Mar 7.0 -0.2 -2.7 10 May 99.4 135.2 average 74%
Upper Northeast (district 83)
Dinner Plain (Mount Hotham Airport) 13.7 -1.3 22.2 13 Mar 2.7 -0.8 -5.8 6 May 136.4 124.0 average 110%
Edi Upper 20.2 -1.2 28.2 13 Mar 7.7 -0.8 -0.8 12 May 169.4 208.1 average 81%
Falls Creek 9.3 -0.7 17.9 6 Mar 2.5 -0.7 -6.7 12 May 240.8 257.7 average 93%
Mount Buller 8.5 -1.7 16.5 14 Mar 2.4 -1.4 -5.5 12 May 326.0 305.4 average 107%
Mount Hotham 7.5 -1.2 15.1 6 Mar 1.8 -1.0 -6.5 12 May 317.0 309.6 average 102%
Omeo 16.9 25.6 15 Mar 5.1 -2.9 12 May 111.0
East Gippsland (district 84)
Combienbar AWS 16.4 -1.4 30.1 9 Mar 9.1 -0.6 2.2 14 May 348.8 209.1 highest 167%
Gabo Island Lighthouse 19.1 +0.1 32.0 9 Mar 13.3 -0.1 7.3 14 May 283.6 256.3 average 111%
Gelantipy 14.9 -1.7 25.9 9 Mar 6.7 -0.4 -0.9 6 May 204.4 154.6 high 132%
Lakes Entrance (Eastern Beach Road) 19.2 31.6 13 Mar 10.6 2.5 18 May 185.4
Mallacoota 19.2 -0.7 31.2 9 Mar 11.6 0.0 4.8 11 May 344.2 248.5 high 139%
Mount Nowa Nowa 17.7 -1.5 30.2 9 Mar 10.1 -0.6 4.2 12 May 290.6 186.2 high 156%
Orbost 19.5 -1.3 31.0 13 Mar 10.4 -0.2 4.5 18 May 287.6 181.6 highest 158%
Orbost (Comparison) 19.9 -0.9 31.3 13 Mar 9.4 -0.1 2.5 18 May 281.2 210.0 high 134%
Point Hicks (Lighthouse) 19.0 -0.6 29.0 9 Mar 12.4 -0.7 4.0 14 May 397.0 245.9 v high 161%
West Gippsland (district 85)
Bairnsdale Airport 19.6 -1.1 32.4 9 Mar 8.6 -0.2 0.8 18 May 170.8 144.4 average 118%
East Sale Airport 19.2 -1.0 32.3 13 Mar 8.9 +0.1 1.1 10 May 142.0 149.7 average 95%
Morwell (Latrobe Valley Airport) 18.9 -1.7 31.9 13 Mar 8.8 0.0 -0.3 10 May 267.2 158.8 highest 168%
Mount Baw Baw 8.6 -1.7 18.7 13 Mar 2.8 -1.1 -4.2 11 May 542.0 358.2 highest 151%
Mount Moornapa 16.7 -1.6 30.8 13 Mar 9.4 -0.4 3.3 14 May 254.6 176.1 high 145%
Noojee (Slivar) 17.6 -1.4 30.0 13 Mar 8.2 +0.6 1.0 10 May 307.2 236.4 high 130%
Pound Creek 18.8 29.6 13 Mar 9.3 1.0 31 May 258.6
Wilsons Promontory Lighthouse 16.9 -0.3 27.9 13 Mar 13.1 +0.5 7.0 11 May 308.4 267.4 high 115%
Yarram Airport 18.9 31.7 13 Mar 8.6 0.5 10 May 257.4
East Central (district 86)
Bundoora (Latrobe University) 19.2 -1.3 31.9 13 Mar 10.3 +0.3 0.4 10 May 217.6 151.4 v high 144%
Cerberus 18.7 -1.0 30.0 12 Mar 10.5 +0.3 2.7 30 May 222.0 175.6 high 126%
Coldstream 19.2 -1.5 31.7 13 Mar 7.9 +0.8 -1.0 10 May 262.4 173.7 highest 151%
Coldstream Comparison 19.2 31.8 13 Mar 7.8 -1.0 10 May 262.4
Cranbourne Botanic Gardens 18.6 -1.3 31.5 13 Mar 10.2 -0.1 3.9 10 May 212.9 178.2 high 119%
Essendon Airport 19.4 -0.6 33.4 13 Mar 10.3 +0.4 1.0 10 May 135.2 143.7 average 94%
Ferny Creek (Dunns Hill) 14.8 -1.3 27.7 13 Mar 8.8 -0.6 1.6 12 May 394.8 262.8 high 150%
Frankston AWS 18.4 -0.8 30.5 12 Mar 12.3 -0.1 6.2 10 May
Melbourne Airport 19.3 -1.0 32.3 13 Mar 9.9 -0.5 2.3 10 May 116.6 121.0 average 96%
Melbourne Regional Office 20.3 0.0 32.5 13 Mar 12.1 +1.2 3.5 10 May 211.2 163.5 high 129%
Moorabbin Airport 19.3 -0.9 32.3 13 Mar 10.6 0.0 1.8 10 May 192.2 177.7 average 108%
Rhyll 18.6 -0.7 29.3 13 Mar 12.5 0.0 6.7 11 May 211.2 165.6 high 128%
Scoresby Research Institute 19.1 -1.0 31.2 13 Mar 9.9 -0.3 0.8 10 May 242.6 212.1 average 114%
Viewbank (ARPANSA) 19.6 -1.7 32.2 13 Mar 10.0 -0.1 -0.3 10 May 260.8 153.4 highest 170%
Wallan (Kilmore Gap) 15.4 -1.6 26.7 13 Mar 8.3 -0.5 2.4 11 May 185.0 157.4 high 118%
Wonthaggi 18.8 -0.9 29.7 12 Mar 10.4 0.0 3.8 31 May 292.4 237.3 high 123%
West Central (district 87)
Avalon Airport 19.4 -1.2 31.5 7 Mar 9.5 -0.3 1.2 31 May 85.0 98.7 average 86%
Grovedale (Geelong Airport) 19.1 -1.0 32.0 7 Mar 9.5 -0.3 2.7 18 May 121.2 123.7 average 98%
Laverton RAAF 19.2 -1.0 32.0 13 Mar 10.0 0.0 2.2 10 May 121.0 127.6 average 95%
Sheoaks 17.8 -1.4 29.6 13 Mar 8.5 -0.5 0.2 10 May 104.2 92.8 high 112%
North Central (district 88)
Castlemaine Prison 18.4 -1.8 28.6 13 Mar 8.2 +0.4 -2.6 10 May 122.0 132.0 average 92%
Eildon Fire Tower 16.3 -2.1 27.9 13 Mar 8.3 -0.8 0.6 12 May 201.0 134.3 high 150%
Lake Eildon 19.6 -1.3 30.4 13 Mar 7.8 -0.3 -0.5 10 May 191.4 191.2 average 100%
Mangalore Airport 19.9 -1.5 30.4 13 Mar 8.3 -0.6 -1.6 12 May 115.2 128.8 average 89%
Maryborough 19.4 -1.3 29.5 12 Mar 8.6 +0.1 0.6 10 May 122.5 119.4 average 103%
Redesdale 19.2 -1.3 29.2 13 Mar 7.2 -0.4 -0.7 31 May 120.8 129.2 average 93%
Western Plains (district 89)
Ararat Prison 18.7 -0.9 29.3 12 Mar 8.3 +0.9 -1.6 10 May 108.2 127.7 average 85%
Ballarat Aerodrome 16.8 -1.0 26.8 13 Mar 7.5 -0.2 -2.9 10 May 117.0 159.6 low 73%
Westmere 18.6 30.5 12 Mar 8.0 -1.7 10 May 121.2
West Coast (district 90)
Aireys Inlet 17.9 -0.9 32.3 7 Mar 11.6 0.0 5.3 11 May 136.8 131.8 average 104%
Cape Nelson Lighthouse 17.5 -0.6 33.7 7 Mar 12.1 -0.2 5.6 31 May 138.2 143.9 average 96%
Cape Otway Lighthouse 17.1 -0.9 31.0 7 Mar 12.2 +0.6 6.7 29 May 173.7 216.6 low 80%
Casterton 18.2 33.4 7 Mar 8.8 -0.3 31 May 229.2
Colac (Mount Gellibrand) 17.2 -1.9 29.3 7 Mar 9.2 -0.6 2.6 10 May 112.8 109.2 average 103%
Dartmoor 18.5 33.9 7 Mar 9.2 -0.5 31 May 198.6
Hamilton Airport 17.9 -2.1 31.6 7 Mar 8.3 0.0 0.7 31 May 190.6 123.8 v high 154%
Mortlake Racecourse 18.3 -1.6 30.4 12 Mar 8.4 +0.4 0.4 31 May 184.4 124.6 highest 148%
Port Fairy AWS 18.3 -0.9 33.5 7 Mar 11.2 +0.3 2.0 31 May 215.2 148.4 highest 145%
Portland (Cashmore Airport) 17.6 -0.8 31.7 7 Mar 10.1 +0.2 2.8 18 Apr 200.0 180.6 high 111%
Warrnambool Airport NDB 18.3 -1.6 33.0 7 Mar 9.3 +0.5 0.9 31 May 302.2 168.6 highest 179%
Weeaproinah 14.3 -0.8 25.3 12 Mar 8.5 -0.4 2.9 10 May 495.6 463.4 average 107%

Notes

A Seasonal 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 10 am on Wednesday 1 June 2011. 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