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Wednesday, 1 December 2010 - Monthly Climate Summary for Victoria - Product code IDCKGC16R0
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.
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.
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.
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.
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.
Reports of hail greater than 2 cm were received from the Woodend and Macedon region on Monday 8 November.
|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|
|Record highest November daily rainfall|
|Highest daily rainfall||Previous highest||Years of
|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
|Melbourne Airport||303.6||303.0||in 1992||40||165.3|
|Highest total November rainfall for at least 20 years|
Most recent November
this high or higher
|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|
|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)|
|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)|
|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)|
|South Wimmera (district 79)|
|Grampians (Mount William)||10.7||25.6||22nd||3.4||-3.3||16th||357.0|
|Horsham Polkemmet Rd||20.5||-0.6||34.0||22nd||6.9||-0.5||0.5||29th||152.2||123.8||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)|
|Echuca Aerodrome||21.2||-0.9||36.1||12th||8.3||-0.4||0.2||30th||217.6||114.2||v high||191%|
|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%|
|Lower Northeast (district 82)|
|Dartmouth Reservoir||19.8||-0.4||30.4||12th||8.0||+1.1||-1.3||30th||468.8||276.3||v high||170%|
|Rutherglen Research||20.5||-0.6||31.7||12th||7.6||+1.2||-1.9||30th||324.2||158.9||v high||204%|
|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%|
|Mount Hotham||6.9||-0.3||16.9||12th||0.9||0.0||-7.6||8th||797.6||395.0||v high||202%|
|East Gippsland (district 84)|
|Gabo Island Lighthouse||17.4||+0.3||24.5||12th||11.7||+0.5||6.0||29th||150.4||220.8||low||68%|
|Lakes Entrance (Eastern Beach Road)||19.0||34.2||12th||9.6||2.6||3rd||230.6|
|Mount Nowa Nowa||18.7||-0.2||33.3||12th||9.3||+0.1||2.5||16th||215.8||216.2||average||100%|
|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)|
|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|
|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%|
|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%|
|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%|
|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%|
|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%|
|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%|
|North Central (district 88)|
|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%|
|Western Plains (district 89)|
|Ballarat Aerodrome||16.2||-0.5||27.9||22nd||6.6||+0.4||-0.3||30th||301.2||195.7||v high||154%|
|West Coast (district 90)|
|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|
|Colac (Mount Gellibrand)||15.9||-1.3||29.6||23rd||7.5||-0.2||1.4||16th||227.6||153.1||v high||149%|
|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%|
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
(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.