Victoria in November 2010: Warm nights and a wet end to Spring

Most parts of Victoria had a wetter than normal November. The largest rainfall totals where located along the Great Dividing Range. Daytime average maximum temperature anomalies were cooler in the west and warmer in the east. Night-time average minimum temperatures were warmer than usual across the state and up to several degrees warmer than usual in the northeast.

Rainfall

Monthly rainfall anomalies were mixed with some areas recording average rainfall while others had their wettest November ever. Rainfall persisted throughout the month in parts of the south and east of the state, with many stations in the East and West Gippsland, Upper Northeast, East and West Central, Western Plains and West Coast districts recording more than fifteen rain days. Both Mount Tamboritha and Boonah recorded twenty-one rain days this November. In contrast, the northwest of the state had far fewer rain days with all stations in the North and South Mallee, North Wimmera and Upper North districts recording less than ten rain days.

Compared to previous Novembers, rainfall totals in the northwest of the state (the North and South Mallee districts) were mostly very much above average. About half of the stations in this region recorded more than three times their usual monthly rainfall.

In the southwest of the state, rainfall totals in the North and South Wimmera, and the Western Plains districts were generally above average. It was slightly drier along the southwest coast with the West Coast District receiving average to above average rainfall.

In central parts of the state, rainfall anomalies were strongest around Port Phillip Bay. The West Central District observed rainfall totals ranging from average to highest on record. Most stations in the North Central District either recorded their wettest November to date, or their totals were very much above average; Broadford (Kilmore North), with 248.4 mm, was the third wettest station this month. Most stations in the East Central District recorded above average rainfall and some had their wettest November on record.

It was a similarly wet story in the northern central part of the state. Most stations in the Lower North District either recorded their wettest November ever, or their rainfall total was very much above average. In the Upper North and Lower Northeast districts, all stations were wetter than usual and many recorded their wettest November to date. Rainfall in the Upper Northeast District ranged form above average to highest on record and the district produced a string of rainfall extremes this month including the three wettest stations, Mount Hotham with 797.6 mm, followed by Halls (Buckland River at Twelve Mile) with 688.6 mm, and then Whitlands (Burder's Lane) with 667.2 mm. The wettest single day was the 14th at Mount Hotham with 96.4 mm.

In the east of the state, Gippsland stations generally reported average rainfall.

Some sites had their highest total November rainfall on record. Some sites had their highest total November rainfall for at least 20 years. Some sites had their highest November daily rainfall on record. There is a map of rainfall deciles below.

Maximum temperature

Average maximum temperatures anomalies ranged from -2.3 C in western parts (Horsham Aerodrome) to +2.6 C in eastern parts (Point Hicks) of the state.

Average daytime temperatures were cooler than usual in the northwest. The North and South Mallee, and the North Wimmera districts recorded mean maximum temperatures that were close to average or below average, with all stations recording negative anomalies. This didn't stop the region from producing its usual string of monthly extremes; the second hottest day of the month was the 11th with Mildura Airport recording 37.4 C and was followed by the hottest day on the 12th when Mildura Airport recorded 37.5 C.

Mean maximum temperatures were average to above average in the northern central parts of the state. The Lower and Upper North districts recorded average to above average mean maximum temperatures and Yarrawonga was the warmest station with 26.7 C. All stations in the Lower Northeast District observed average mean maximum temperatures. In the Upper Northeast District, mean maximum temperatures were average to below average and included the two coolest stations, Mount Hotham with 10.5 C followed by Mount Buller with 11.4 C.

In the southwest of the state, average maximum temperatures in the South Wimmera and West Coast district were average to below average. In the Western Plains District, mean maximum temperatures were close to average for November.

In the Gippsland region, average maximum temperatures in the East and West Gippsland districts were average to very much above average. Mount Baw Baw recorded the equal second coolest days for the month with 11.4 C, it also recorded the coldest day of the month with 0.6 C on the 3rd. Mount Baw Baw recorded the second coldest days of the month on the 1st and the 4th with 2.2 C.

There is a map of maximum temperature anomalies below.

Minimum temperature

Average minimum temperatures were mostly warmer than usual but ranged from -0.4 C in the southwest (Colac (Mount Gellibrand)) up to 3.3 C in the northeast (Rutherglen Research).

In the west of the state, average minimum temperatures in the North and South Mallee, North Wimmera, and Western Plains districts were above average. The warmest night was the 12th, with 24.0 C at Mildura Airport, 22.8 C at Walpeup Research and 22.6 C at Ouyen (Post Office). Average minimum temperatures in the South Wimmera and West Coast districts were average to above average.

Average night-time temperatures in the northeast of the state where warmer than usual. The mean minimum temperatures in the Lower North, North Central and Lower Northeast districts were average to very much above average. Generally, minimum temperatures where above average in Upper North District and average to above average in the Upper Northeast District. The second coldest night was the 2nd at Mount Hotham with -2.7 C followed by -2.6 C at Mount Buller on the 3rd. The coolest nights on average were 4.0 C at Mount Hotham.

The East and West Gippsland districts recorded average to very much above average mean maximum temperatures. The region also produced the coldest night, -2.9 C at Mount Baw Baw on the 19th and the second coolest nights on average with 4.6 C at Mount Baw Baw. Closer to the coast, the warmest nights on average were 14.1 C at Gabo Island Lighthouse, followed by 13.7 C at Point Hicks (Lighthouse).

In the central southern parts of the state, the West and East Central districts generally recorded above average mean minimum November temperatures.

Some sites had their warmest November night (highest daily minimum temperature) on record. There is a map of minimum temperature anomalies below.

Wind

The strongest wind gust was 113 km/h at Wilsons Promontory Lighthouse on the 12th, followed by 109 km/h at Mount Hotham on the 13th, and then 104 km/h at Mount Hotham on the 8th and the 14th.

Hail at Woodend

Reports of hail greater than 2 cm were received from the Woodend and Macedon region on Monday 8 November.

Further information

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Extremes in November 2010
Hottest day 37.5 C at Mildura Airport on the 12th
Warmest days on average 22.6 C at Mildura Airport
Coolest days on average 6.9 C at Mount Hotham
Coldest day 0.6 C at Mount Baw Baw on the 3rd
Coldest night -2.9 C at Mount Baw Baw on the 19th
Coolest nights on average 0.9 C at Mount Hotham
Warmest nights on average 11.7 C at Gabo Island Lighthouse
Warmest night 24.0 C at Mildura Airport on the 12th
Wettest overall 797.6 mm at Mount Hotham
Wettest day 96.4 mm at Mount Hotham on the 14th
Highest wind gust 113 km/h at Wilsons Promontory Lighthouse on the 12th

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 November daily rainfall
Highest daily rainfall Previous highest Years of
record
Strathbogie 68.2 on the 28th 63.6 on the 19th in 1978 93
Red Cliffs (Post Office) 57.0 on the 15th =57.0 on the 21st in 1999 74
Cairn Curran Reservoir 42.8 on the 27th 38.9 on the 12th in 1970 62
Tawonga 82.0 on the 14th 65.5 on the 8th in 1971 57
Bonbeach (Carrum) 45.0 on the 15th 41.0 on the 4th in 2007 54
Eppalock Reservoir 61.0 on the 28th 52.0 on the 5th in 2004 46
Castlemaine Prison 50.6 on the 28th =50.6 on the 2nd in 1993 45
Donald 61.2 on the 27th 43.2 on the 12th in 2004 45
Warrenbayne 67.8 on the 28th 53.4 on the 4th in 2007 29
Beechworth Woolshed 82.6 on the 14th 72.6 on the 12th in 1998 25

Record highest total November rainfall
Total rainfall Previous highest Years of
record
Average for
November
Melbourne Airport 303.6 303.0 in 1992 40 165.3

Highest total November rainfall for at least 20 years
Total rainfall Most recent November
this high or higher
Years since
higher
Average for
November
Essendon Airport 282.2 330.2 in 1954 38 170.7
Laverton RAAF 277.0 314.6 in 1975 35 159.4
Avalon Airport 275.8 283.2 in 1975 25 144.9
Moorabbin Airport 334.0 370.4 in 1983 25 199.2



Summary statistics for November 2010
Maximum temperatures
(C)
Minimum temperatures
(C)
Rainfall
(mm)
Mean Diff
from
average
Highest Mean Diff
from
average
Lowest Total Average Rank of
November
2010
Fraction of
November
average
Southwest Slopes (South) (district 72)
Albury Airport AWS 20.8 -1.0 31.3 12th 9.4 +1.1 -0.1 30th 347.8 177.2 v high 196%
Hume Reservoir 20.7 -0.4 31.3 12th 10.2 +1.1 0.9 30th 386.6 184.3 v high 210%
North Mallee (district 76)
Mildura Airport 22.6 -1.3 37.5 12th 10.1 +0.2 1.6 30th 253.8 84.2 highest 301%
Ouyen (Post Office) 22.6 -1.1 35.7 11th 9.6 +0.6 1.9 29th 181.4 95.8 v high 189%
Walpeup Research 22.4 -0.7 36.0 12th 9.2 +0.2 0.8 29th 173.4 94.3 v high 184%
South Mallee (district 77)
Hopetoun Airport 22.1   36.8 11th 7.6   -1.5 24th 132.8
Swan Hill Aerodrome 22.3 -1.7 37.0 12th 8.4 -0.1 0.4 24th 206.2 102.5 v high 201%
North Wimmera (district 78)
Nhill Aerodrome 20.8   34.9 22nd 7.8   0.0 30th 136.2
Warracknabeal Museum 21.0 -0.8 34.2 22nd 8.0 +0.2 0.2 30th 141.9 114.6 high 124%
South Wimmera (district 79)
Edenhope Airport 19.1   34.3 22nd 8.1   0.8 7th 150.8
Grampians (Mount William) 10.7   25.6 22nd 3.4   -3.3 16th 357.0
Horsham Aerodrome 20.1 -1.8 33.8 22nd 6.7 +0.6 -1.5 30th 159.6 107.1 high 149%
Horsham Polkemmet Rd 20.5 -0.6 34.0 22nd 6.9 -0.5 0.5 29th 152.2 123.8 high 123%
Kanagulk 18.9   34.0 22nd 7.3   0.4 30th 142.2
Longerenong 20.3 -0.6 34.6 22nd 6.9 0.0 -1.7 30th 139.4 113.2 high 123%
Pyrenees (Ben Nevis) 13.1   26.9 22nd 4.9   -2.6 16th 327.8
Stawell Aerodrome 18.8 -1.3 32.3 22nd 7.9 +0.3 0.9 30th 227.0 142.2 v high 160%
Lower North (district 80)
Charlton 20.9   34.8 11th 7.9   0.1 30th 266.0
Echuca Aerodrome 21.2 -0.9 36.1 12th 8.3 -0.4 0.2 30th 217.6 114.2 v high 191%
Kerang 21.9 -1.0 36.4 11th 9.3 +0.4 1.9 29th 230.8 103.6 v high 223%
Kyabram DPI 21.1 -0.1 35.8 12th 7.9 +0.3 -1.5 30th 144.4 121.9 average 118%
Upper North (district 81)
Bendigo Airport 19.7 -0.7 31.8 11th 7.5 +0.8 -2.1 30th 349.0 147.7 v high 236%
Shepparton Airport 20.6 -1.4 34.6 12th 8.4 +0.8 -0.4 30th 228.6 131.1 v high 174%
Tatura Inst Sustainable Ag 20.5 -0.5 34.7 12th 8.0 +0.3 -1.8 30th 190.7 132.5 high 144%
Yarrawonga 21.5 -1.0 34.8 12th 8.1 +0.4 -0.1 30th 225.6 126.3 v high 179%
Lower Northeast (district 82)
Benalla Airport 20.6   32.0 12th 7.9   -1.2 30th 263.6
Corryong Airport 20.8   30.9 12th 7.3   -1.9 30th 462.8
Dartmouth Reservoir 19.8 -0.4 30.4 12th 8.0 +1.1 -1.3 30th 468.8 276.3 v high 170%
Hunters Hill 15.6 -0.2 25.9 12th 7.4 +0.3 -1.1 16th 547.8 315.0 high 174%
Rutherglen Research 20.5 -0.6 31.7 12th 7.6 +1.2 -1.9 30th 324.2 158.9 v high 204%
Strathbogie 17.1 -0.7 27.9 12th 6.2 +0.7 -2.1 30th 420.8 247.0 v high 170%
Wangaratta Aero 20.7 -0.7 32.3 12th 7.7 +0.9 -0.9 30th 240.0 164.5 high 146%
Upper Northeast (district 83)
Dinner Plain (Mount Hotham Airport) 13.9 -0.5 23.7 12th 2.8 -0.1 -6.1 8th 304.8 248.5 high 123%
Edi Upper 19.5 -0.4 29.8 13th 7.7 +0.3 0.2 30th 474.8 282.6 high 168%
Falls Creek 8.3 -0.4 18.2 22nd 1.8 +0.3 -7.2 30th 641.4 376.0 high 171%
Mount Buller 7.4 -1.1 17.4 12th 1.4 -0.3 -6.9 16th 625.0 445.1 high 140%
Mount Hotham 6.9 -0.3 16.9 12th 0.9 0.0 -7.6 8th 797.6 395.0 v high 202%
Omeo 17.6   27.9 12th 5.3   -2.7 17th 239.4
East Gippsland (district 84)
Combienbar AWS 18.3 +0.1 31.9 12th 8.2 +0.2 1.0 16th 214.4 275.4 low 78%
Gabo Island Lighthouse 17.4 +0.3 24.5 12th 11.7 +0.5 6.0 29th 150.4 220.8 low 68%
Gelantipy 16.2 -0.1 26.9 12th 6.5 +0.5 -0.6 3rd 239.2 225.6 average 106%
Lakes Entrance (Eastern Beach Road) 19.0   34.2 12th 9.6   2.6 3rd 230.6
Mallacoota 18.9 0.0 33.2 12th 10.4 +0.5 3.5 20th 159.0 247.1 low 64%
Mount Nowa Nowa 18.7 -0.2 33.3 12th 9.3 +0.1 2.5 16th 215.8 216.2 average 100%
Orbost 19.7   34.0 12th 9.4   1.6 8th 174.0 199.4 average 87%
Orbost (Comparison) 20.2 +0.5 34.4 12th 8.4 +0.2 0.1 8th 179.4 220.3 average 81%
Point Hicks (Lighthouse) 19.0 +0.6 32.5 12th 11.3 +0.3 4.4 30th 201.4 232.4 average 87%
West Gippsland (district 85)
Bairnsdale Airport 19.8 +0.2 33.7 12th 7.9 +0.4 -0.2 8th 174.8 195.9 average 89%
East Sale Airport 19.7 +0.6 35.7 12th 7.8 +0.3 -0.8 3rd 127.0 172.4 low 74%
Morwell (Latrobe Valley Airport) 19.1 -0.3 34.3 23rd 7.5 0.0 0.5 3rd 232.2 226.1 average 103%
Mount Baw Baw 7.6 -1.3 19.8 22nd 1.5 -0.4 -6.4 16th 495.2
Mount Moornapa 18.4 -0.1 32.5 12th 8.4 +0.2 1.2 16th 256.8 247.8 average 104%
Noojee (Slivar) 17.5 -0.4 30.5 22nd 7.4 +0.7 0.2 3rd 409.4 343.7 high 119%
Pound Creek 17.8   31.1 12th 8.6   0.6 3rd 243.6
Willow Grove (Blue Rock Reservoir) 18.9 +0.2 30.0 23rd     1.5 20th 237.9 230.6 average 103%
Wilsons Promontory Lighthouse 15.7 0.0 30.2 23rd 10.9 +0.9 5.5 29th 277.6 262.5 average 106%
Yarram Airport 18.7   35.4 12th 7.1   -0.3 3rd 184.8
East Central (district 86)
Bundoora (Latrobe University) 19.4 -0.2 32.2 22nd 9.2 +0.4 2.0 30th 269.1 193.4 high 139%
Cerberus 17.9 -0.4 31.4 12th 9.2 +0.3 1.7 2nd 255.6 188.2 v high 136%
Coldstream 19.3 -0.4 30.9 22nd 7.6 +0.8 0.3 3rd 313.0 208.8 high 150%
Coldstream Comparison 19.2   30.9 22nd 7.4   0.2 3rd 312.4
Cranbourne Botanic Gardens 18.4 -0.3 31.6 22nd 8.9 0.0 3.0 3rd 290.1 240.9 high 120%
Essendon Airport 19.0 -0.1 31.4 22nd 9.1 +1.0 1.5 8th 282.2 170.7 v high 165%
Ferny Creek (Dunns Hill) 14.7 -0.6 27.3 22nd 7.3 -0.1 0.5 16th 428.8 292.5 high 147%
Frankston AWS 17.4 -0.3 33.2 22nd 10.9 +0.3 5.7 8th
Melbourne Airport 18.8 -0.4 31.6 22nd 8.7 +0.1 1.9 14th 303.6 165.3 highest 184%
Melbourne Regional Office 20.1 +0.5 33.3 22nd 11.1 +1.6 4.7 16th 304.8 184.5 v high 165%
Moorabbin Airport 18.8 -0.3 32.5 12th 9.9 +0.6 2.2 8th 334.0 199.2 v high 168%
Rhyll 17.6 -0.2 28.5 12th 11.0 +0.4 4.5 16th 255.8 186.9 high 137%
Scoresby Research Institute 19.0 +0.1 31.5 22nd 9.0 +0.1 1.0 8th 324.0 251.6 high 129%
Viewbank (ARPANSA) 19.6 -0.9 32.2 22nd 9.3 0.0 2.5 14th 311.6 196.6 v high 158%
Wallan (Kilmore Gap) 15.1 -1.0 27.1 22nd 7.0 0.0 0.1 16th 391.2 178.9 v high 219%
Wonthaggi 18.2 +0.2 32.0 12th 9.4 +0.5 3.4 3rd 300.8 246.3 high 122%
West Central (district 87)
Avalon Airport 19.0 -0.9 32.2 12th 8.3 0.0 0.3 2nd 275.8 144.9 v high 190%
Grovedale (Geelong Airport) 18.0 -0.7 31.9 23rd 8.1 +0.2 1.8 8th 227.4 154.8 v high 147%
Laverton RAAF 18.9 -0.3 31.5 22nd 9.0 +0.7 1.3 8th 277.0 159.4 v high 174%
Sheoaks 17.3 -0.7 31.8 22nd 7.4 0.0 0.5 2nd 283.2 171.4 v high 165%
North Central (district 88)
Castlemaine Prison 18.2 -0.9 30.3 11th 7.5 +0.7 -2.0 30th 413.8 170.9 highest 242%
Eildon Fire Tower 16.2 -0.8 28.1 22nd 7.5 0.0 -0.9 16th 461.6 180.7 v high 255%
Lake Eildon 20.0 +0.1 31.5 22nd 8.1 +0.8 0.8 3rd 419.8 228.7 v high 184%
Mangalore Airport 20.0 -0.5 31.7 22nd 7.9 +0.5 -1.2 29th 312.2 153.4 v high 204%
Maryborough 19.1 -1.0 31.7 23rd 7.5 +0.2 0.4 30th 377.2 141.8 highest 266%
Redesdale 18.8 -0.7 30.6 22nd 6.5 +0.5 -1.5 30th 410.2 149.9 highest 274%
Western Plains (district 89)
Ararat Prison 18.0 -0.1 31.8 22nd 7.0 +0.8 -1.1 30th 242.1 166.9 high 145%
Ballarat Aerodrome 16.2 -0.5 27.9 22nd 6.6 +0.4 -0.3 30th 301.2 195.7 v high 154%
Westmere 17.3   31.8 22nd 6.8   0.5 2nd 223.0
West Coast (district 90)
Aireys Inlet 17.1 -0.7 32.3 23rd 9.4 0.0 3.3 16th 244.8 184.4 high 133%
Cape Nelson Lighthouse 16.7 -0.4 32.7 23rd 10.3 -0.3 3.0 7th 155.2 172.6 low 90%
Cape Otway Lighthouse 15.9 -0.9 32.0 23rd 10.0 +0.4 5.0 16th
Casterton 18.2   33.0 23rd 7.5   0.2 7th 170.8
Casterton Showgrounds 18.7 -0.4 33.4 22nd 7.6 +0.1 -0.5 7th 196.6 179.8 average 109%
Colac (Mount Gellibrand) 15.9 -1.3 29.6 23rd 7.5 -0.2 1.4 16th 227.6 153.1 v high 149%
Dartmoor 18.1   35.5 23rd 7.8   0.0 7th 193.6
Hamilton Airport 17.4 -0.5 32.4 22nd 6.9 +0.1 -0.2 14th 182.8 177.0 average 103%
Mortlake Racecourse 17.4 -0.6 31.8 22nd 7.2 +0.7 0.6 14th 200.6 162.9 high 123%
Port Fairy AWS 17.6 -0.5 34.8 23rd 9.8 +0.3 3.2 25th 192.2 168.8 high 114%
Portland (Cashmore Airport) 16.4 -0.4 31.2 23rd 8.5 0.0 2.0 19th 219.6 202.2 average 109%
Warrnambool Airport NDB 17.2 -0.9 31.6 23rd 7.9 +0.3 1.1 25th 249.2 194.0 high 128%
Weeaproinah 13.4 -0.4 27.6 23rd 6.6 -0.2 0.8 16th 537.4 513.2 average 105%

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.

This statement has been prepared based on information available at 11 am on Wednesday 1 December 2010. 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
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Enquiries