Victoria in January 2015: above-average rain in the west and a cooler than average last week of the month

The first half of the month saw Victoria influenced by rain events from two separate weather systems that provided  some relief to drought deficiencies in the west of the state.  Maximum temperatures for the last week of January were much cooler than average right across the state with some centres recording their lowest mean daily maximum temperature on record for the week. The State's average maximum temperature for January was 27.17C which is 0.11C below the 1961-90 average. Whereas, the average minumum temperature was 14.28C, an increase of 1.25C on the 1961-90 average

  • Rainfall was above average over most of the state
  • Daytime temperatures were slightly below average to the north west and predominantly average elsewhere.
  • Night temperatures were above average across most of the state.

Further information

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Extremes in January 2015
Hottest day 44.6 C at Hopetoun Airport on the 3rd
Warmest days on average 31.7 C at Ouyen (Post Office)
Coolest days on average 15.4 C at Mount Baw Baw
Coldest day 5.8 C at Falls Creek on the 30th
Coldest night -0.3 C at Mount Baw Baw on the 19th
Coolest nights on average 7.8 C at Mount Baw Baw
Warmest nights on average 17.6 C at Mildura Airport
Warmest night 27.4 C at Walpeup Research on the 3rd
Warmest on average overall 24.6 C at Mildura Airport
Coolest on average overall 11.8 C at Mount Baw Baw
Wettest overall 203.8 mm at Reeves Knob
Wettest day 76.0 mm at Eppalock Reservoir on the 10th
Strongest wind gust 119 km/h at Grampians (Mount William) on the 3rd

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 January daily rainfall
New record
(mm)
Old
record
Years of
record
Eppalock Reservoir 76.0 on the 10th 68.4 on the 14th in 2011 50
Avalon Airport 37.4 on the 14th 36.6 on the 14th in 2011 33
Aireys Inlet 60.0 on the 14th 54.0 on the 14th in 2011 21



Record highest January total rainfall
New record
(mm)
Old
record
Years of
record
Average for
January
Phillip Island Penguin Reserve 80.9 79.8 in 2011 29 33.6
Combienbar AWS 142.2 135.2 in 1999 21 73.3
Mount Nowa Nowa 134.6 106.8 in 1996 20 58.4

Highest January total rainfall for at least 20 years
Observed
(mm)
Most recent
higher
Years since
higher
Average for
January
Barnawartha 134.4 158.8 in 1974* 26 35.7
Cann River 190.2 196.2 in 1992 23 63.9
Rutherglen Research 87.4 97.4 in 1991* 23 36.8
Bonang 163.2 166.2 in 1992* 22 69.9

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




Lowest January total rainfall for at least 20 years
Observed
(mm)
Most recent
lower
Years since
lower
Average for
January
Tawonga 9.0 3.6 in 1965* 46 61.2

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




Record lowest January daily maximum temperature
New record
(C)
Old
record
Years of
record
Average for
January
Avalon Airport 17.6 on the 9th = 17.6 on the 7th in 1999 20 26.3



Summary statistics for January 2015
Maximum temperatures
(C)
Minimum temperatures
(C)
Rainfall
(millimetres)
Mean for
January
2015
Diff
from
average
Highest for
January
2015
Mean for
January
2015
Diff
from
average
Lowest for
January
2015
Total for
January
2015
Average
for
January
Rank of
January
2015
Fraction of
January
average
North Mallee (district 76)
Mildura Airport 31.6 -0.7 43.5 3rd 17.6 +0.9 11.2 26th 57.0 22.0 v high 259%
Ouyen (Post Office) 31.7 -0.7 43.9 3rd 16.9 +1.4 9.7 26th 29.8 21.0 high 142%
Walpeup Research 31.2 -0.6 43.9 3rd 16.3 +1.0 9.2 26th 56.4 22.4 high 252%
South Mallee (district 77)
Hopetoun Airport 31.4 -1.7 44.6 3rd 15.4 +0.1 8.1 26th 34.6 34.0 high 102%
Swan Hill Aerodrome 31.7 -1.4 42.9 3rd 16.5 +0.5 8.7 26th 15.2 27.2 average 56%
North Wimmera (district 78)
Nhill Aerodrome 29.2 -2.0 42.0 2nd 14.0 +0.3 7.6 26th 70.8 30.7 high 231%
Warracknabeal Museum 29.8 -1.0 42.0 3rd 14.6 +0.5 9.0 27th 54.5 26.7 high 204%
South Wimmera (district 79)
Edenhope Airport 27.7   42.0 7th 12.9   5.4 26th 47.4 36.2 high 131%
Grampians (Mount William) 19.0   32.4 2nd 8.7   2.7 26th 102.4 74.8 high 137%
Horsham Aerodrome 29.3 -1.8 42.7 2nd 13.2 +0.7 6.7 27th 64.6 30.0 high 215%
Kanagulk 28.2 -1.6 42.4 2nd 12.7 -0.1 7.0 19th 52.8 39.7 high 133%
Longerenong 29.1 -0.9 42.1 2nd 13.9 +1.0 6.7 26th 76.6 25.0 v high 306%
Pyrenees (Ben Nevis) 23.0   36.6 2nd 11.1   4.9 26th 102.0
Stawell Aerodrome 27.3 -2.0 41.1 2nd 13.4 -0.1 8.0 26th 66.4 37.5 high 177%
Lower North (district 80)
Charlton 30.8 -1.7 43.2 3rd 15.5 0.0 8.0 26th 39.4 32.7 high 120%
Echuca Aerodrome 31.0 +0.1 40.4 3rd 16.1 +1.0 9.3 26th 39.2 27.7 high 142%
Kerang 31.4 -0.2 41.8 3rd 16.4 +1.3 10.6 19th 25.6 23.6 average 108%
Kyabram 31.3 +1.1 40.6 2nd 15.5 +1.1 8.9 30th 35.2 32.9 average 107%
Upper North (district 81)
Bendigo Airport 29.2 -0.6 40.3 3rd 14.5 +0.4 6.2 26th 57.2 34.6 high 165%
Shepparton Airport 30.6 -1.4 39.3 2nd 15.5 +0.4 9.3 16th 32.6 25.9 average 126%
Tatura Inst Sustainable Ag 29.8 +0.1 38.7 3rd 15.0 +0.8 8.5 16th 39.6 33.1 average 120%
Yarrawonga 31.1 -1.6 40.3 2nd 16.1 +0.4 9.2 26th 66.4 32.1 high 207%
Lower Northeast (district 82)
Benalla Airport 30.2   38.9 3rd 15.7   8.0 1st 51.0
Corryong Airport 29.7   37.1 2nd 13.1   5.2 31st 80.2
Dartmouth Reservoir 27.9 -1.5 36.0 2nd 14.7 +1.0 8.1 1st 99.0 61.3 high 162%
Hunters Hill 24.1 -1.9 32.6 2nd 13.5 -0.8 6.3 29th 97.2 61.5 high 158%
Rutherglen Research 30.7 -0.7 39.8 2nd 14.1 +0.4 4.7 29th 87.4 36.8 v high 238%
Strathbogie 26.7 -0.6 35.5 2nd 12.6 +1.0 6.0 1st 118.0 48.0 v high 246%
Wangaratta Aero 30.2 -1.8 39.0 2nd 14.5 +0.4 7.5 1st 69.6 41.6 high 167%
Upper Northeast (district 83)
Falls Creek 15.8 -2.0 23.1 2nd 8.4 -0.3 0.7 29th 160.4 105.4 high 152%
Mount Buller 16.1 -1.2 24.5 2nd 8.1 -0.7 0.0 26th 148.6 75.0 high 198%
Omeo 24.9 -2.8 33.5 2nd 11.7 +0.5 4.4 18th 56.4 41.3 v high 137%
East Gippsland (district 84)
Combienbar AWS 23.6 -2.0 36.8 3rd 13.8 +0.3 7.7 19th 142.2 73.3 highest 194%
Gabo Island Lighthouse 22.4 +1.1 26.1 3rd 17.0 +1.2 12.6 30th 79.8 69.8 high 114%
Gelantipy 22.1 -1.9 31.8 3rd 12.1 +0.5 5.0 19th 93.2 59.5 high 157%
Lakes Entrance (Eastern Beach Road) 24.6   38.8 3rd 16.0   11.0 19th 88.2
Mallacoota 24.4 +0.2 33.5 3rd 16.7 +1.2 12.3 2nd 122.6 63.1 v high 194%
Mount Nowa Nowa 23.6 -1.3 38.0 3rd 14.5 +0.3 9.1 19th 134.6 58.4 highest 230%
Orbost 25.7 -0.8 39.1 3rd 15.4 +0.8 10.4 20th 86.4 42.3 high 204%
Point Hicks (Lighthouse) 24.7 +0.8 37.6 3rd 16.7 +0.9 13.0 1st 90.2 62.2 high 145%
West Gippsland (district 85)
Bairnsdale Airport 25.3 -0.6 38.9 3rd 14.5 +1.7 7.0 26th 66.8 47.4 high 141%
Corner Inlet (Yanakie) 23.6   38.9 3rd 13.7   5.1 27th 39.6
East Sale Airport 25.1 -0.4 38.3 3rd 14.2 +1.4 5.3 19th 38.2 44.4 average 86%
Morwell (Latrobe Valley Airport) 25.4 -1.1 38.9 3rd 13.7 +1.0 6.0 19th 40.2 46.6 average 86%
Mount Baw Baw 15.4 -2.2 25.5 2nd 7.8 -0.8 -0.3 19th 117.6 90.9 high 129%
Mount Moornapa 23.9 -1.6 37.4 3rd 13.3 +0.1 8.5 19th 108.0 59.4 high 182%
Pound Creek 24.4   38.2 3rd 12.8   3.5 27th 52.8
Willow Grove (Blue Rock Reservoir) 24.5 -1.9 35.6 4th     7.4 20th 45.7 49.9 average 92%
Wilsons Promontory Lighthouse 21.0 +0.7 38.4 3rd 15.3 +1.2 12.8 26th 59.0 50.4 high 117%
Yarram Airport 24.9   41.2 3rd 13.2   5.0 27th 31.6
East Central (district 86)
Bundoora (Latrobe University) 26.9 +0.3 41.0 2nd 14.6 +0.4 8.2 30th 36.3 45.3 average 80%
Cerberus 24.5 +0.1 39.2 7th 14.2 +0.4 8.2 28th 58.8 38.1 high 154%
Coldstream 27.5 -0.3 39.4 2nd 12.6 +0.9 6.6 19th 33.0 42.2 low 78%
Essendon Airport 27.0 +0.6 40.5 2nd 14.6 +1.1 9.8 16th 31.6 42.2 average 75%
Ferny Creek 22.4   35.1 2nd 12.5   7.3 26th 79.0
Frankston AWS 24.5 -0.3 38.3 2nd 15.6 +0.1 11.9 28th
Melbourne (Olympic Park) 25.9   38.8 2nd 15.9   11.6 26th 47.4
Melbourne Airport 26.9 +0.5 40.5 2nd 14.0 +0.3 7.5 26th 29.4 40.1 average 73%
Moorabbin Airport 26.4 +0.7 40.2 3rd 14.8 +0.6 9.3 29th 36.6 44.1 average 83%
Rhyll 24.0 +0.3 35.7 3rd 15.7 +0.4 12.7 26th 44.0 36.8 average 120%
Scoresby Research Institute 26.4 +0.2 39.1 2nd 14.1 +0.9 8.6 31st 53.0 52.3 average 101%
Viewbank 27.3 -0.5 40.6 2nd 14.8 +0.4 9.8 16th 30.8 38.5 average 80%
Wonthaggi 24.4 +0.5 38.5 7th 14.5 +1.5 7.0 27th 47.8 47.9 average 100%
West Central (district 87)
Avalon Airport 26.3 0.0 42.1 2nd 13.8 -0.2 6.8 26th 63.6 31.1 high 205%
Breakwater (Geelong Racecourse) 25.1   39.8 2nd 14.2   8.3 26th 51.6
Laverton RAAF 26.1 +0.4 41.4 2nd 14.6 +0.9 7.9 26th 45.6 39.0 average 117%
Sheoaks 25.4 -0.4 40.0 7th 11.9 -0.3 4.3 27th 61.8 35.2 high 176%
North Central (district 88)
Castlemaine Prison 27.0 -1.1 38.5 2nd 13.8 +0.8 5.8 26th 52.5 40.0 high 131%
Eildon Fire Tower 26.3 -1.0 35.5 2nd 13.3 -0.2 7.0 19th 53.6 36.8 high 146%
Lake Eildon 28.7 -0.2 38.7 2nd 13.5 +0.8 6.0 19th 74.0 46.6 high 159%
Mangalore Airport 29.9 +0.2 39.7 2nd 14.4 +0.2 8.1 30th 49.4 39.0 high 127%
Maryborough 28.3 -0.5 40.5 2nd 13.5 +0.6 7.9 26th 72.6 31.2 high 233%
Redesdale 29.2 -0.1 39.5 2nd 13.3 +0.3 6.3 16th 64.8 33.6 high 193%
Wallan (Kilmore Gap) 25.3 +0.5 37.6 2nd 12.2 0.0 5.9 26th 40.6 46.3 average 88%
Western Plains (district 89)
Ararat Prison 27.3 +0.4 41.0 3rd 12.1 +0.9 6.0 26th 70.9 39.9 high 178%
Ballarat Aerodrome 24.9 -0.2 38.2 2nd 11.3 +0.4 4.5 16th 77.8 39.4 high 197%
Westmere 26.3   40.8 2nd 11.2   5.8 19th 47.0
West Coast (district 90)
Aireys Inlet 23.0 +0.2 40.2 3rd 14.3 +0.4 8.6 26th 89.4 39.4 v high 227%
Cape Nelson Lighthouse 21.1 -0.2 39.7 2nd 14.6 0.0 10.4 24th 39.8 34.9 high 114%
Cape Otway Lighthouse 20.9 -0.5 36.0 2nd 14.6 +1.3 10.9 1st 60.4 44.0 high 137%
Colac (Mount Gellibrand) 24.5 -1.2 40.2 2nd 12.4 -0.1 6.4 26th 64.6 36.4 high 177%
Dartmoor 24.9   42.7 2nd 12.1   4.3 27th 73.2
Hamilton Airport 26.2 -0.3 41.1 2nd 11.8 +0.8 5.4 19th 54.6 34.1 high 160%
Mortlake Racecourse 25.9 0.0 41.8 2nd 11.6 +0.8 3.3 5th 65.6 35.1 high 187%
Port Fairy AWS 22.7 +0.1 42.2 2nd 14.3 +0.3 10.0 26th 82.0 33.7 high 243%
Portland (Cashmore Airport) 22.3 +0.4 39.9 2nd 12.6 +0.4 4.9 27th 55.8 37.1 high 150%
Warrnambool Airport NDB 24.0 -0.5 42.1 2nd 12.2 +0.5 4.5 5th 79.6 35.8 high 222%

Notes

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.

A Climate Summary is generally published on the first working day of each month.

This statement has been prepared based on information available at 10 am on Monday 2 February 2015. 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 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 used for temperature area averages.

Further information

Media
(03) 9669 4057
Enquiries