Victoria in summer 2017-18: Warm days and nights with a record wet start

Average daytime and night-time temperatures were very much above average across much of the State over summer. Nights were especially warm with Victoria's third warmest summer on record for minimum temperatures. After the record wet start the season ended with drier than average conditions in February when averaged over the State as a whole.

Wet in the east and dry in the west

  • Rainfall was around 6 per cent above the mean when averaged across the State as a whole. Rainfall was average to above average in central Victoria and in the east and below average in the western parts of the State.
  • Many sites, including seven with over 100 years of data, had their highest summer daily rainfall on record from the rain event at the start of December with most daily records broken on the 2nd.
  • A few sites broke their daily rainfall record by more than 50 mm, this includes Lake Eildon and Strathbogie with over 100 years of observations.
  • Some sites had their highest total summer rainfall for at least 20 years including Mansfield (Post Office) that had its wettest summer in over 50 years.
  • Some sites in the southwestern part of the State had their lowest total summer rainfall for at least 20 years

Warm days and nights

  • Maximum temperatures were fourth highest on record when averaged across the State as a whole. Minimum temperatures were especially warm, the third highest on record and the warmest since summer 2000/2001. All of the State was above average with most areas in the top ten per cent of all summers on record.
  • Some sites had their highest summer mean daily maximum temperature on record including Walpeup Research in the northwest of the State with over 60 years of record.
  • Rutherglen Research and Castlemaine Prison had their highest summer mean daily maximum temperature since 1980.
  • The 29th of January saw high minimum temperatures across much of Victoria, especially the northwest of the state. The 31.4 °C observed at Mildura Airport is the second warmest daily minimum on record for Victoria behind 31.9 °C on the 20th December 2015, also at Mildura Airport.
  • Some sites including Wonthaggi and Rhyll had or equalled their warmest summer night (highest daily minimum temperature) on record
  • Some sites, including Wilson's Promontory Lighthouse, had or equalled their highest summer mean daily minimum temperature on record
  • Some sites had their highest summer mean daily minimum temperature since 1980, except for East Sale which had its warmest since 1992.
  • Some sites around the State had or equalled their highest summer mean temperature on record
  • During the prolonged period of heat in northern Victoria in the second half of January, some sites sets records for the number of days in a row over 35 °
  • A number of sites also set records for the number of days in a row over 35 °C. Walpeup Research saw 14 days over 35 °C, breaking the previous record set in March 2008. Other stations such as Bendigo Airport, Echuca, Kyabram and Shepparton all saw 12 days over 35 °C breaking their previous records, Bendigo Airport and Kyabram by 4 days.

A windy Valentine's Day

  • The highest wind gust for the season was 133 km/h at Wilson's Promontory Lighthouse on the 14th February. Some sites with less than 20 years of wind observations set their February record on this day.

Further information

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Extremes in summer 2017-18
Hottest day 46.4 °C at Walpeup Research on 19 Jan 2018
Warmest days on average 33.8 °C at Mildura Airport
Coolest days on average 16.0 °C at Mount Hotham
Coldest day 3.6 °C at Mount Baw Baw on 3 Dec 2017
Coldest night -2.5 °C at Mount Hotham on 1 Feb 2018
Coolest nights on average 7.9 °C at Mount Hotham
Warmest nights on average 17.8 °C at Mildura Airport
Warmest night 31.4 °C at Mildura Airport on 29 Jan 2018
Warmest on average overall 25.8 °C at Mildura Airport
Coolest on average overall 12.0 °C at Mount Hotham
Wettest overall 390.0 mm at Reeves Knob
Driest overall 32.6 mm at Walpeup Research
Wettest day 182.2 mm at Gooram (Hillside) on 2 Dec 2017
Strongest wind gust 133 km/h at Wilsons Promontory Lighthouse on 14 Feb 2018

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 summer daily rainfall
New record
(mm)
Old
record
Years of
record
Echuca Aerodrome 123.0 on 2 Dec 2017 90.7 on 4 Jan 1941 138
Murchison 146.8 on 2 Dec 2017 146.1 on 19 Feb 1928 135
Euroa 146.0 on 2 Dec 2017 100.3 on 4 Jan 1941 133
Lake Eildon 148.6 on 2 Dec 2017 80.0 on 3 Feb 2005 132
Woods Point 138.0 on 1 Dec 2017 120.7 on 1 Dec 1934 130
Molka (Lowana) 110.4 on 2 Dec 2017 103.1 on 19 Feb 1928 118
Strathbogie 164.6 on 2 Dec 2017 110.0 on 3 Feb 2005 107
Waranga Shores (Waranga Reservoir) 178.4 on 2 Dec 2017 99.1 on 15 Feb 1955 106
Eurobin 118.2 on 2 Dec 2017 104.1 on 27 Feb 1939 98
Stanhope 128.8 on 2 Dec 2017 88.8 on 30 Dec 2016 98
Tongala 88.0 on 2 Dec 2017 81.5 on 4 Jan 1941 89
Creightons Creek (Baronga (Creighton's C 149.0 on 2 Dec 2017 99.4 on 3 Feb 2005 82
Longwood 113.0 on 1 Dec 2017 90.0 on 14 Jan 1984 58
Kotta 88.0 on 2 Dec 2017 75.0 on 5 Feb 2011 52
Murchison (Arcadia (Sunnyville)) 71.0 on 2 Dec 2017 68.0 on 31 Dec 1991 50
Buxton 81.8 on 2 Dec 2017 81.2 on 3 Feb 2005 49
Gundowring Upper 111.4 on 4 Dec 2017 101.6 on 20 Feb 1973 49
Ulupna 84.5 on 2 Dec 2017 61.0 on 4 Jan 1980 42
Kerang Model Farm 74.0 on 2 Dec 2017 70.2 on 8 Dec 1992 40
Mount Buller 138.6 on 2 Dec 2017 102.8 on 9 Dec 2010 40
Strath Creek 88.0 on 2 Dec 2017 74.2 on 16 Jan 1984 37
Rushworth (Raglus) 87.0 on 2 Dec 2017 81.4 on 31 Dec 1991 34
Hunters Hill 84.0 on 2 Dec 2017 79.6 on 5 Feb 2011 25
Acheron River @ Taggerty 114.2 on 2 Dec 2017 86.6 on 3 Feb 2005 24
Eildon Fire Tower 128.8 on 2 Dec 2017 95.8 on 3 Feb 2005 23
Lima East (Charnwood) 160.0 on 2 Dec 2017 109.6 on 3 Feb 2005 23



Highest summer total rainfall for at least 20 years
Observed
(mm)
Most recent
higher
Average for
summer
Mansfield (Post Office) 295.0 295.6 in 1966* 137.3
Dargo 267.2 496.8 in 1970* 178.1
Giffard 213.2 249.6 in 1992* 131.8
Rushworth (Raglus) 166.0 205.6 in 1993* 118.4

Lowest summer total rainfall for at least 20 years
Observed
(mm)
Most recent
lower
Average for
summer
Beeac (Post Office) 36.4 35.4 in 1977* 110.0
Cobden (Post Office) 73.6 67.8 in 1983 136.0
Wickliffe 46.8 37.8 in 1982* 100.0

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




Record highest summer mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
summer
Walpeup Research 33.7 = 33.7 in 2000 66 31.0
Point Hicks (Lighthouse) 25.7 24.9 in 2005 47 23.3
Aireys Inlet 24.6 24.2 in 2005 26 22.4
Avalon Airport 27.1 27.0 in 2000 22 25.7

Highest summer mean daily maximum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
summer
Rutherglen Research 32.5 32.7 in 1980 30.5
Castlemaine Prison 29.1 29.8 in 1980* 27.4

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




Record highest summer daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
summer
Walpeup Research 30.1 on 29 Jan 2018 29.5 on 12 Dec 1975 52 14.8
Wonthaggi 26.5 on 29 Jan 2018 25.0 on 29 Jan 2009 50 12.8
Rhyll 25.6 on 29 Jan 2018 24.8 on 21 Jan 1997 27 15.0
Mallacoota 24.0 on 28 Jan 2018 = 24.0 on 31 Dec 2005 25 15.0



Record highest summer mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
summer
Wilsons Promontory Lighthouse 16.1 15.8 in 2015 137 13.9
Essendon Airport 15.2 = 15.2 in 2015 47 13.2
Wonthaggi 14.6 14.4 in 2000 45 12.8
Portland (Cashmore Airport) 13.3 13.1 in 2011 35 12.0
Hamilton Airport 12.0 11.9 in 2015 33 10.6
Rhyll 16.4 16.0 in 2015 26 15.0
Mallacoota 16.2 16.0 in 2014 24 15.0
Wallan (Kilmore Gap) 12.9 = 12.9 in 2015 24 11.7
Avalon Airport 14.6 = 14.6 in 1998 22 13.4
Cape Nelson Lighthouse 15.3 15.2 in 2000 22 14.3
Mount Nowa Nowa 14.5 = 14.5 in 2015 22 13.6
Eildon Fire Tower 14.0 13.8 in 2000 21 12.8

Highest summer mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
summer
Laverton RAAF 15.4 15.8 in 1980 13.4
Maryborough 14.3 14.7 in 1980 12.5
Moorabbin Airport 15.5 15.6 in 1980 13.7
Tatura Inst Sustainable Ag 15.2 15.7 in 1980 13.7
Ballarat Aerodrome 12.2 12.9 in 1980* 10.6
Castlemaine Prison 14.2 15.1 in 1980* 12.5
East Sale 13.9 14.0 in 1992 12.5

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




Record highest summer mean temperature
New record
(°C)
Old
record
Years of
record
Average for
summer
Point Hicks (Lighthouse) 20.9 20.7 in 2000 46 19.3
Aireys Inlet 19.6 19.5 in 2000 26 18.0
Rhyll 20.6 20.5 in 2015 26 19.2
Mallacoota 20.4 20.1 in 2000 24 19.2
Yarrawonga 24.4 = 24.4 in 1998 24 23.2
Coldstream 20.3 = 20.3 in 2015 23 19.1
Avalon Airport 20.8 = 20.8 in 2000 22 19.6
Shepparton Airport 23.5 = 23.5 in 2006 21 22.5

Highest summer mean temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
summer
Moorabbin Airport 21.1 21.8 in 1980 19.5



Summary statistics for summer 2017-18
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
summer
2017-18
Diff
from
average
Highest for
summer
2017-18
Mean for
summer
2017-18
Diff
from
average
Lowest for
summer
2017-18
Total for
summer
2017-18
Average
for
summer
Rank of
summer
2017-18
Fraction of
summer
average
North Mallee (district 76)
Mildura Airport 33.8 +2.3 45.1 20 Jan 2018 17.8 +1.8 8.1 8 Dec 2017 48.6 69.6 average 70%
Ouyen (Post Office) 32.9 +1.5 44.2 6 Jan 2018 16.6 +1.7 7.6 8 Dec 2017 56.4 70.3 average 80%
Walpeup Research 33.7 +2.7 46.4 19 Jan 2018 15.9 +1.1 6.3 8 Dec 2017 32.6 69.5 low 47%
South Mallee (district 77)
Hopetoun Airport 32.9 +1.1 46.0 19 Jan 2018 15.1 +0.7 6.1 15 Feb 2018 35.2 75.5 low 47%
Swan Hill Aerodrome 33.3 +1.3 45.6 20 Jan 2018 16.3 +1.1 9.0 8 Dec 2017 68.8 69.1 average 100%
North Wimmera (district 78)
Kellalac (Warracknabeal Airport) 31.9   45.2 19 Jan 2018 14.1   6.2 5 Dec 2017 33.4
Nhill Aerodrome 30.7 +0.5 44.2 19 Jan 2018 13.8 +0.6 6.0 5 Dec 2017 38.4 68.3 low 56%
Warracknabeal Museum 31.5 +1.4 44.0 6 Jan 2018 14.4 +0.9 6.5 8 Dec 2017 36.3 73.9 low 49%
South Wimmera (district 79)
Edenhope Airport 28.8 +0.4 43.0 19 Jan 2018 12.8 +0.3 5.3 8 Dec 2017 54.2 89.1 low 61%
Grampians (Mount William) 21.1 +1.3 36.1 19 Jan 2018 10.2 +1.1 2.3 3 Dec 2017 111.2 172.0 low 65%
Horsham Aerodrome 30.8 +0.8 45.1 19 Jan 2018 12.5 +0.6 4.7 5 Dec 2017 43.4 77.2 low 56%
Kanagulk 29.2 +0.6 44.2 19 Jan 2018 12.4 +0.3 5.1 8 Dec 2017 38.4 97.4 v low 39%
Longerenong 31.3 +2.0 45.9 19 Jan 2018 13.3 +0.8 3.5 8 Dec 2017 41.0 75.0 low 55%
Pyrenees (Ben Nevis) 25.2 +1.4 40.0 19 Jan 2018 12.5 +1.0 3.6 3 Dec 2017 66.4 121.3 low 55%
Stawell Aerodrome 29.2 +1.1 43.6 19 Jan 2018 13.7 +0.8 4.9 8 Dec 2017 43.0 99.3 v low 43%
Lower North (district 80)
Charlton 32.3 +1.1 44.7 19 Jan 2018 15.0 +0.5 7.7 8 Dec 2017 42.6 78.8 low 54%
Echuca Aerodrome 32.2 +2.0 44.1 20 Jan 2018 15.6 +1.0 7.4 1 Feb 2018 181.0 83.5 v high 217%
Kerang 32.8 +1.9 44.7 20 Jan 2018 16.3 +1.7 9.0 14 Jan 2018 70.4 74.5 average 94%
Kyabram 31.6 +2.1 43.7 20 Jan 2018 15.3 +1.3 8.6 9 Dec 2017 153.6 96.8 high 159%
Upper North (district 81)
Bendigo Airport 30.9 +2.0 43.5 19 Jan 2018 14.9 +1.4 7.2 9 Dec 2017 60.2 105.3 low 57%
Shepparton Airport 31.4 +0.8 43.4 20 Jan 2018 15.6 +1.3 8.6 9 Dec 2017 113.6 100.3 high 113%
Tatura Inst Sustainable Ag 30.4 +1.5 42.7 20 Jan 2018 15.2 +1.5 7.6 9 Dec 2017 139.6 102.3 high 136%
Yarrawonga 33.0 +1.6 43.4 21 Jan 2018 15.8 +0.9 8.2 9 Dec 2017 109.4 120.0 average 91%
Lower Northeast (district 82)
Benalla Airport 31.2 +0.5 42.9 20 Jan 2018 15.1 +0.4 7.0 15 Feb 2018 159.5 139.3 high 115%
Corryong Airport     41.5 7 Jan 2018 13.1 +0.2 6.0 15 Feb 2018 193.7 192.1 average 101%
Dartmouth Reservoir 29.0 +0.5 39.0 20 Jan 2018 14.0 +0.9 6.0 15 Feb 2018 240.0 190.3 average 126%
Hunters Hill 25.7 +1.0 35.5 20 Jan 2018 14.3 +0.9 4.3 14 Jan 2018 292.2 221.1 high 132%
Rutherglen Research 32.5 +2.0 43.2 21 Jan 2018 14.1 +1.1 5.5 15 Feb 2018 152.8 119.6 high 128%
Strathbogie 27.8 +1.3 38.9 20 Jan 2018 11.8 +0.8 3.8 9 Dec 2017 298.6 150.6 v high 198%
Wangaratta Aero 31.8 +1.1 42.4 20 Jan 2018 13.7 +0.5 5.6 15 Feb 2018 193.8 132.9 high 146%
Upper Northeast (district 83)
Falls Creek 17.0 +0.3 26.0 20 Jan 2018 8.9 +1.0 -1.1 1 Feb 2018
Mount Buller 17.3 +0.9 26.7 20 Jan 2018 9.1 +1.2 -1.1 4 Dec 2017 386.4 259.4 high 149%
Mount Hotham 16.0 +0.7 25.1 20 Jan 2018 7.9 +0.7 -2.5 1 Feb 2018 354.2 331.0 average 107%
Omeo 26.6 +1.0 38.1 20 Jan 2018 10.9 +0.7 2.0 15 Feb 2018 216.6 177.1 high 122%
East Gippsland (district 84)
Combienbar AWS 25.4 +1.1 38.5 19 Jan 2018 13.5 +0.7 6.9 4 Dec 2017
Gabo Island Lighthouse 22.5 +1.6 27.7 8 Feb 2018     11.3 9 Dec 2017 181.6 202.5 average 90%
Gelantipy 24.1 +1.3 35.0 19 Jan 2018 11.6 +0.7 3.9 1 Feb 2018
Lakes Entrance (Eastern Beach Road) 24.7 +1.0 41.0 19 Jan 2018 15.1 +0.8 9.0 2 Feb 2018 213.6 161.4 high 132%
Mallacoota 24.5 +1.1 38.2 24 Feb 2018 16.2 +1.2 9.2 9 Dec 2017 201.2 196.7 average 102%
Mount Nowa Nowa 25.0 +1.0 41.6 19 Jan 2018 14.5 +0.9 8.6 4 Dec 2017 235.2 208.1 average 113%
Orbost 26.4 +1.1 40.8 19 Jan 2018     8.8 21 Feb 2018 160.0 164.5 average 97%
Point Hicks (Lighthouse) 25.7 +2.4 36.8 19 Jan 2018 16.1 +0.8 10.4 14 Jan 2018 266.0 192.0 high 139%
West Gippsland (district 85)
Bairnsdale Airport 26.1 +1.1 42.1 19 Jan 2018 13.4 +1.1 6.3 17 Feb 2018 203.6 156.5 high 130%
Corner Inlet (Yanakie) 23.8   39.3 6 Jan 2018 14.4   6.5 1 Feb 2018 196.4
East Sale 26.0 +1.2 40.9 19 Jan 2018 13.9 +1.4 6.7 1 Feb 2018 178.0 141.8 high 126%
East Sale Airport 26.6   41.9 19 Jan 2018 14.2   7.8 1 Feb 2018 204.6
Morwell (Latrobe Valley Airport) 27.3 +1.4 40.1 19 Jan 2018 13.5 +1.1 4.7 1 Feb 2018 190.6 160.6 high 119%
Mount Baw Baw 16.6 +0.5 27.9 19 Jan 2018 8.4 +0.9 -0.4 8 Dec 2017 340.6 359.5 average 95%
Mount Moornapa 26.0 +1.6 40.7 19 Jan 2018 13.5 +0.8 7.1 1 Feb 2018 271.2 195.2 high 139%
Nilma North (Warragul) 26.6   39.6 19 Jan 2018 13.5   5.2 1 Feb 2018 185.0
Pound Creek 25.2 +0.8 40.1 6 Jan 2018 13.2 +0.8 3.7 1 Feb 2018 167.6 135.9 high 123%
Wilsons Promontory Lighthouse 21.6 +1.7 38.4 6 Jan 2018 16.1 +2.2 11.0 4 Dec 2017 203.2 162.8 high 125%
Yarram Airport 25.4 +0.7 39.9 6 Jan 2018 13.2 +0.8 5.2 1 Feb 2018 202.6 146.4 high 138%
East Central (district 86)
Coldstream 28.1 +1.2 40.3 19 Jan 2018 12.6 +1.4 5.1 15 Feb 2018 251.8 156.2 v high 161%
Cranbourne Botanic Gardens     41.1 19 Jan 2018 14.0 +0.9 6.5 1 Feb 2018 198.4 164.7 high 120%
Essendon Airport 27.4 +1.8 42.5 19 Jan 2018 15.2 +2.0 9.3 5 Dec 2017 220.2 140.2 high 157%
Ferny Creek 24.0   37.1 19 Jan 2018 13.2   6.9 8 Dec 2017 292.0
Frankston AWS 25.1 +1.0 38.1 19 Jan 2018 16.2 +1.1 11.0 1 Feb 2018
Melbourne (Olympic Park) 26.4   41.7 6 Jan 2018 16.4   10.8 5 Dec 2017 195.4
Melbourne Airport 27.2 +1.3 42.4 19 Jan 2018 14.4 +1.1 8.3 1 Feb 2018 196.8 132.8 high 148%
Moorabbin Airport 26.6 +1.3 42.3 6 Jan 2018 15.5 +1.8 9.0 1 Feb 2018 199.8 150.3 high 133%
Rhyll 24.8 +1.5 37.2 28 Jan 2018 16.4 +1.4 12.0 4 Dec 2017 125.8 123.0 average 102%
Scoresby Research Institute 27.7 +2.1 41.0 19 Jan 2018 14.5 +1.4 7.3 1 Feb 2018 218.2 182.5 high 120%
Viewbank 28.0 +0.9 42.0 6 Jan 2018 14.8 +0.9 9.0 5 Dec 2017 238.0 157.3 v high 151%
Wonthaggi 24.8 +1.3 40.5 6 Jan 2018 14.6 +1.8 7.4 1 Feb 2018 175.6 155.6 average 113%
West Central (district 87)
Avalon Airport 27.1 +1.4 44.2 6 Jan 2018 14.6 +1.2 7.7 5 Dec 2017 78.6 95.3 average 82%
Breakwater (Geelong Racecourse) 25.6   40.9 19 Jan 2018 14.7   8.6 5 Dec 2017 100.6
Laverton RAAF 26.5 +1.5 43.1 6 Jan 2018 15.4 +2.0 9.3 7 Dec 2017 150.2 131.1 high 115%
Sheoaks 26.8 +1.8 42.4 19 Jan 2018 12.9 +1.1 5.2 5 Dec 2017 73.0 103.9 average 70%
North Central (district 88)
Castlemaine Prison 29.1 +1.7 42.8 19 Jan 2018 14.2 +1.7 6.2 8 Dec 2017 96.4 118.9 average 81%
Eildon Fire Tower 26.6 +0.6 39.2 20 Jan 2018 14.0 +1.2 6.9 4 Dec 2017 268.4 132.8 v high 202%
Lake Eildon 29.6 +1.5 41.3 20 Jan 2018 13.4 +1.2 6.3 15 Feb 2018 276.0 147.9 v high 187%
Mangalore Airport 30.3 +1.6 43.1 20 Jan 2018 14.8 +1.3 8.1 9 Dec 2017 150.4 119.1 high 126%
Maryborough 29.5 +1.4 42.9 19 Jan 2018 14.3 +1.8 7.6 8 Dec 2017 96.2 101.0 average 95%
Redesdale 30.6 +2.2 42.5 19 Jan 2018     5.1 15 Feb 2018 113.0 108.9 average 104%
Wallan (Kilmore Gap) 25.4 +1.4 38.4 19 Jan 2018 12.9 +1.2 6.4 1 Feb 2018 195.2 142.9 high 137%
Western Plains (district 89)
Ararat Prison 28.2 +1.9 42.8 19 Jan 2018 9.8 -0.9 3.0 17 Jan 2018 64.6 108.5 low 60%
Ballarat Aerodrome 26.4 +2.1 40.5 19 Jan 2018 12.2 +1.6 5.3 15 Feb 2018 110.8 133.1 average 83%
Westmere 27.9 +0.7 43.5 19 Jan 2018 11.3 +0.6 3.7 10 Jan 2018 66.0 104.6 low 63%
West Coast (district 90)
Aireys Inlet 24.6 +2.2 42.1 6 Jan 2018 14.7 +1.0 9.4 8 Dec 2017 64.6 110.7 v low 58%
Cape Nelson Lighthouse 22.2 +1.4 40.8 6 Jan 2018 15.3 +1.0 10.7 15 Dec 2017 79.8 101.0 low 79%
Cape Otway Lighthouse 22.0 +1.0 40.5 6 Jan 2018 14.9 +1.8 9.3 12 Dec 2017 116.0 138.6 average 84%
Casterton 28.0 +1.2 42.4 28 Jan 2018 11.8 +0.2 4.0 14 Jan 2018 43.6 107.5 low 41%
Colac (Mount Gellibrand) 26.0 +1.2 41.6 19 Jan 2018 13.3 +1.2 7.2 8 Dec 2017 42.4 98.5 v low 43%
Dartmoor 27.1   43.5 6 Jan 2018 12.5   5.2 17 Feb 2018 49.2
Hamilton Airport 27.2 +1.4 42.6 19 Jan 2018 12.0 +1.4 5.7 8 Dec 2017 58.2 102.0 low 57%
Mortlake Racecourse 27.1 +1.8 43.2 6 Jan 2018 11.1 +0.5 4.1 12 Dec 2017 54.4 107.6 v low 51%
Portland (Cashmore Airport) 22.8 +1.2 39.4 6 Jan 2018 13.3 +1.3 6.8 5 Jan 2018 111.4 115.0 average 97%
Warrnambool Airport NDB 24.7 +0.7 42.6 6 Jan 2018 12.5 +1.1 5.6 12 Dec 2017 82.6 113.2 low 73%

Notes

The Seasonal 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 1 pm on Thursday 1 March 2018. 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
Enquiries