The Bureau is reviewing the information it provides in its climate summaries. By providing feedback, you will assist us to identify and prioritise the most useful content and ensure that we deliver the best possible product to meet your needs.
Please complete our survey. (Requires about 1 – 5 minutes, opens in a new tab or window)
Monday, 1 November 2010 - Monthly Climate Summary for Victoria - Product code IDCKGC16R0
In what is shaping up to be Victoria’s wettest year since 1992, Gippsland has been experiencing particularly dry conditions. However, this month many Gippsland stations recorded rainfall in excess of 100 mm, with Mount Nowa Nowa and Gelantipy both almost double their long-term averages.
Consistent rain across the northern and central regions of the State resulted in above, or very much above average rainfall this month. A north-west cloudband combined with a frontal system on the 6th and 7th to bring several millimetres of welcome rain to the farmers attending the Elmore Field days in the State’s north.
Several troughs across mainland Australia, and a particularly deep and strongly ridging low pressure system, passed across the Victorian region in mid-October, resulting in substantial rainfalls for much of the State. The centre of the low pressure system penetrated well inland, moving slowly over central and eastern Victoria on the 15th. Regular rainfall between the 13th and 17th brought up to 25 mm to most locations, with up to 100 mm falling in the north east district in the 24hours till 9am on the 16th. In fact, Nariel Creek (Simpson) received 88mm in just one day associated with this system, and was also the wettest location this month with 286.2mm.
Some regions in the Wimmera, close to the State border, received less rain than usual, with a major rainfall event on the 30th and 31st bringing the monthly totals closer to what is typically expected in October. In fact, some stations recorded their highest daily October rainfall on record in this event, with Moorabbin Airport (72.0mm) and Kyneton (70.6mm) receiving the equivalent of a typical October’s rainfall in just one day.
After particularly cool start to spring, daytime temperatures this month were very close to the climatological average. Temperatures in excess of 25 °C were recorded across the state on numerous occasions, with the northwest consistently observing temperatures in the high twenties.
The warmest days across the State were the 22nd and 29th. On both occasions, temperatures soared above 25 °C as a result of strong dry northerly winds associated with a slow moving high pressure system. Mildura Airport and Ouyen Post Office both registered a summery daily maximum of 31.6 °C on the 22nd, whilst the hottest day was 32.8 °C at Mildura Airport on the 29th.
Cool overnight temperatures and a large low pressure system over Victoria on the 15th and 16th, brought post-ski season snow to the Alpine region, with snow observed at both Noojee and Strathbogie on the 16th. Mount Hotham was the coolest location of the month, averaging nightly temperatures of just 1.3 °C and a frosty -7.6 °C on the 16th.
Several particularly cool nights this month kept minimum temperatures close to the long-term average. The warmest nights were the 12th, 30th and 31st, due to warm northerly flow and pre-frontal cloud keeping temperatures well above normal. Melbourne Regional Office experienced night-time temperatures over 18 °C on the 12th and 30th, whilst Point Hicks Lighthouse observed 19.0 °C overnight on the 31st. Although Gabo Island Lighthouse achieved October nights right on their long term average of 11.5 °C; these night-time temperatures were the warmest on average across the State.
Windy conditions on the last weekend of the month, associated with the passage of a strongly ridging system, resulted in wind gust of up to 139 km/h recorded at Mount Hotham on both the 30th and 31st.
|Extremes in October 2010|
|Hottest day||32.8 °C at Mildura Airport on the 29th|
|Warmest days on average||23.5 °C at Mildura Airport|
|Coolest days on average||7.6 °C at Mount Hotham|
|Coldest day||-1.8 °C at Mount Buller on the 16th|
|Coldest night||-7.6 °C at Mount Hotham on the 16th|
|Coolest nights on average||1.3 °C at Mount Hotham|
|Warmest nights on average||11.5 °C at Gabo Island Lighthouse|
|Warmest night||19.0 °C at Point Hicks (Lighthouse) on the 31st|
|Wettest overall||286.2 mm at Nariel Creek (Simpson)|
|Wettest day||130.2 mm at Mount Hotham on the 31st|
|Highest wind gust||
139 km/h at Mount Hotham on the 30th|
139 km/h at Mount Hotham on the 31st
|Record highest total October rainfall|
for October 2010 (mm)
|Chiltern (Post Office)||184.1||181.0||in 1975||126||65.8|
|Nariel Creek (Simpson)||286.2||261.8||in 1917||125||101.0|
|Rutherglen Research||179.4||156.3||in 1975||98||59.0|
|Mitta Mitta Forestry||238.0||221.6||in 1986||58||101.3|
|Bonbeach (Carrum)||136.6||136.2||in 1964||51||70.0|
|Beechworth Woolshed||171.8||149.2||in 1993||24||68.4|
|Avoca (Homebush)||122.0||99.6||in 1992||23||44.3|
|Bendigo Airport||137.6||111.2||in 1992||20||44.0|
|Highest total October rainfall for at least 20 years|
for October 2010 (mm)
Most recent October
this high or higher
|Hume Reservoir||202.6||214.7||in 1949||61||69.9|
|Dartmouth Reservoir||235.4||258.8||in 1934||41||101.6|
|Burrowye Station||203.8||210.9||in 1974||35||78.6|
|Canary Island||119.8||128.6||in 1975||35||36.2|
|Castlemaine Prison||146.2||200.7||in 1975||35||60.3|
|Laverton RAAF||115.8||165.4||in 1975||35||57.4|
|Melbourne Airport||128.8||143.8||in 1975||35||54.9|
|Melbourne Regional Office||135.2||150.2||in 1975||35||66.3|
|Natte Yallock||118.7||159.2||in 1975||35||45.0|
|Toorourrong Reservoir (Toorourrong)||149.6||189.0||in 1975||35||80.1|
|Cheltenham Kingston Centre||157.0||172.1||in 1975||34||75.5|
|Cobram (Goulburn Murray)||97.2||185.1||in 1975||34||40.7|
|Mildura Airport||92.2||105.2||in 1976||34||30.5|
|Preston Reservoir||140.4||185.0||in 1975||34||66.7|
|Tatura Inst Sustainable Ag||110.2||170.9||in 1975||34||48.2|
|Moorabbin Airport||163.6||165.4||in 1975||33||71.0|
|Yan Yean||126.4||154.0||in 1975||33||67.3|
|Bundoora (Latrobe University)||122.4||123.9||in 1983||27||65.2|
|Avalon Airport||101.0||144.0||in 1975||25||49.8|
|Ararat Prison||88.2||147.0||in 1986||24||58.1|
|Strath Creek||131.2||141.2||in 1986||24||61.3|
|Skipton Post Office||111.2||119.2||in 1986||21||60.8|
|Highest October mean daily minimum temperature for at least 20 years|
Mean daily minimum
for October 2010 (°C)
Most recent October
this high or higher
|Rutherglen Research||7.4||8.7||in 1973||37||6.2|
|Summary statistics for October 2010|
|Southwest Slopes (South) (district 72)|
|Albury Airport AWS||20.8||-0.7||25.9||5th||9.2||+1.4||4.1||1st||154.8||54.4||v high||285%|
|Hume Reservoir||21.3||+0.4||26.3||5th||10.5||+1.4||3.7||1st||202.6||69.9||v high||290%|
|North Mallee (district 76)|
|Mildura Airport||23.5||-0.3||32.8||29th||10.2||+0.4||3.9||7th||92.2||30.5||v high||302%|
|Ouyen (Post Office)||23.4||-0.3||32.0||29th||9.3||+0.5||3.6||16th||71.2||35.2||high||202%|
|South Mallee (district 77)|
|Swan Hill Aerodrome||23.0||-0.8||31.3||29th||8.2||+0.4||2.5||2nd||91.8||24.2||v high||379%|
|North Wimmera (district 78)|
|South Wimmera (district 79)|
|Grampians (Mount William)||11.4||19.7||22nd||3.3||-3.3||16th||109.2|
|Horsham Polkemmet Rd||21.0||0.0||30.8||29th||6.2||-0.9||1.1||1st||54.0||43.7||average||124%|
|Pyrenees (Ben Nevis)||13.6||22.3||22nd||4.7||-2.6||16th||109.6|
|Lower North (district 80)|
|Echuca Aerodrome||21.4||-0.6||29.2||22nd||8.1||-0.6||1.6||1st||112.0||42.9||v high||261%|
|Upper North (district 81)|
|Shepparton Airport||20.6||-1.1||27.4||22nd||8.1||+1.0||1.1||1st||104.4||36.8||v high||284%|
|Tatura Inst Sustainable Ag||20.5||-0.4||27.1||22nd||7.9||+0.4||1.1||1st||110.2||48.2||v high||229%|
|Lower Northeast (district 82)|
|Dartmouth Reservoir||20.2||-0.1||25.4||22nd||7.8||+1.0||1.8||1st||235.4||101.6||v high||232%|
|Hunters Hill||15.9||+0.3||21.7||5th||7.4||+0.5||-1.1||16th||247.4||93.1||v high||266%|
|Wangaratta Aero||20.7||-0.4||26.4||29th||7.3||+0.9||1.4||1st||134.6||53.7||v high||251%|
|Upper Northeast (district 83)|
|Dinner Plain (Mount Hotham Airport)||14.8||+0.8||19.6||21st||3.3||+0.8||-3.9||16th||117.8||77.1||high||153%|
|East Gippsland (district 84)|
|Gabo Island Lighthouse||17.1||0.0||20.4||31st||11.5||+0.4||6.0||20th||74.2||75.2||average||99%|
|Lakes Entrance (Eastern Beach Road)||18.8||27.5||6th||9.4||4.2||20th||135.2|
|Mount Nowa Nowa||19.3||+0.5||27.9||22nd||9.5||+0.6||2.5||16th||131.4||69.3||v high||190%|
|Point Hicks (Lighthouse)||19.3||+0.8||29.5||31st||11.1||+0.2||5.4||18th||77.6||76.8||average||101%|
|West Gippsland (district 85)|
|East Sale Airport||20.1||+0.9||28.5||6th||7.6||+0.1||1.7||9th||61.6||58.2||average||106%|
|Morwell (Latrobe Valley Airport)||19.6||+0.3||27.8||22nd||6.9||-0.5||0.9||1st||92.6||73.6||high||126%|
|Mount Baw Baw||8.5||+0.2||15.5||29th||1.6||+0.2||-6.4||16th||184.2|
|Wilsons Promontory Lighthouse||16.2||+0.4||23.7||22nd||10.7||+0.8||6.7||17th||72.2||92.3||average||78%|
|East Central (district 86)|
|Bundoora (Latrobe University)||19.9||+0.4||27.2||22nd||9.0||+0.4||2.5||2nd||122.4||65.2||v high||188%|
|Essendon Airport||19.6||+0.5||27.4||22nd||8.8||+0.7||2.3||2nd||128.2||61.2||v high||209%|
|Ferny Creek (Dunns Hill)||15.5||+0.3||23.6||22nd||7.3||+0.1||0.5||16th||180.4||94.7||high||190%|
|Melbourne Airport||19.4||+0.2||27.2||22nd||8.4||0.0||2.6||2nd||128.8||54.9||v high||235%|
|Melbourne Regional Office||20.7||+1.1||28.9||22nd||10.9||+1.4||4.7||16th||135.2||66.3||v high||204%|
|Moorabbin Airport||19.3||+0.2||28.7||29th||9.2||0.0||3.2||2nd||163.6||71.0||v high||230%|
|Scoresby Research Institute||19.7||+0.8||27.1||22nd||8.4||-0.4||2.4||2nd||147.6||85.9||high||172%|
|Viewbank (ARPANSA)||20.2||+0.2||27.3||29th||8.8||+0.1||2.7||2nd||148.6||66.9||v high||222%|
|Wallan (Kilmore Gap)||15.5||-0.3||22.4||22nd||7.0||+0.4||0.1||16th||130.4||51.7||v high||252%|
|West Central (district 87)|
|Avalon Airport||19.5||-0.3||29.3||29th||7.6||-0.2||0.3||2nd||101.0||49.8||v high||203%|
|Grovedale (Geelong Airport)||18.6||0.0||28.0||29th||7.4||-0.2||2.5||2nd||87.8||51.3||high||171%|
|Laverton RAAF||19.4||+0.2||29.1||22nd||8.4||+0.2||1.4||2nd||115.8||57.4||v high||202%|
|North Central (district 88)|
|Castlemaine Prison||18.7||-0.5||25.8||22nd||7.5||+0.9||1.0||19th||146.2||60.3||v high||242%|
|Eildon Fire Tower||16.4||-0.1||22.0||22nd||7.8||+0.7||-0.9||16th||149.2||54.4||v high||274%|
|Mangalore Airport||20.3||-0.1||26.7||22nd||7.7||+0.5||2.1||16th||106.4||48.3||v high||220%|
|Western Plains (district 89)|
|West Coast (district 90)|
|Cape Nelson Lighthouse||17.6||+0.6||29.3||22nd||9.6||-0.7||4.4||1st||45.8||47.3||average||97%|
|Cape Otway Lighthouse||16.7||-0.2||27.4||29th||9.6||+0.1||5.0||16th||85.4||80.9||average||106%|
|Colac (Mount Gellibrand)||16.5||-0.1||25.1||29th||7.5||+0.3||1.4||16th||99.2||52.2||v high||190%|
|Port Fairy AWS||18.4||+0.3||27.6||22nd||9.1||-0.1||3.2||25th||66.6||50.8||high||131%|
|Portland (Cashmore Airport)||17.1||+0.4||26.6||22nd||7.4||-0.8||2.0||19th||57.6||60.7||average||95%|
|Warrnambool Airport NDB||17.9||+0.2||25.9||29th||7.2||+0.2||1.1||25th||80.8||63.5||high||127%|
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 10 am on Monday 1 November 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.