Tuesday, 1 September 2009 - Seasonal Climate Summary for Victoria - Product code IDCKGC16R0
Victoria in winter 2009
Winter
Across winter 2009 as a whole, we have seen both overnight and daytime temperatures about 1 degree above normal, accompanied by mostly patchy rain, although above normal totals were recorded across the Western District, the Wimmera, in South Gippsland, and about the higher ranges.
August
Specifically regarding August 2009, we have seen Victoria experiencing a warm month, with both overnight and daytime temperatures between 1 and 2 degrees above the long-term normals.
Rainfall was patchy, but there were some useful falls, with above normals totals across the Western District, the Wimmera, across West and South Gippsland, and also about the higher ranges.
August 2009 Synoptic Patterns
A feature of synoptic patterns through August 2009 has been the persistence of intense low pressure systems to the south of the Australian continent. MSL pressure has averaged between 10 and 14 hPa below normal across a wide area to the south and southwest of Tasmania.
This anomaly combined with pressures only being 2 to 4 hPa below normal across South Australia and NSW has meant that surface flow has been a stronger than usual northwesterly across Victoria (meaning that those areas exposed to such flow, such as the southwest and west of the State have had useful rains), with relatively few "cold outbreaks".
The sea surface temperatures set by the dynamics of the tropical oceans interact strongly with the tropical atmosphere, affecting winds and patterns of convection and precipitation, coupling back with the ocean dynamics. Atmospheric teleconnections can also affect conditions over many parts of the globe, including southeastern Australia.
At the end of Ausust 2009 we saw a mild warm anomaly over the central tropical Pacific, with mild warming having taken place over the previous month, which was tending towards El Niņo conditions. The temperature distribution across the tropical Indian Ocean saw a normal east-west temperature gradient.
Year
What has been observed across Victoria during the first eight months of the year have been overnight temperatures that have been close to, or very slightly above, the long-term normals, whilst daytime temperatures have been about half a degree above normal across the State. Rainfall since the beginning of 2009 has been below normal, except in the Western District, the Wimmera, South Gippsland, and about the higher ranges.
One of the driest parts of the State has been the Melbourne metropolitan area where several localities, including the city centre, have experienced their driest first eight months of the year.
An archive of previous seasonal summaries for Victoria is also available, as are summaries for other states and many other climate summaries and diagnostics.
Jump to: Summaries Notes the top
Further information
Dr Harvey SternClimate Meteorologist
Victoria Climate Services Centre
Bureau of Meteorology
Phone (03) 9669 4956
Email climate.vic@bom.gov.au
Summaries
This table is very wide and may not fit if printed.
| Summary statistics for winter 2009 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures for winter (°C) |
Minimum temperatures for winter (°C) |
Rainfall for winter (millimetres) |
||||||||||
| Mean for winter 2009 |
Diff from average |
Highest for winter 2009 |
Mean for winter 2009 |
Diff from average |
Lowest for winter 2009 |
Total for winter 2009 |
Average for winter |
Rank of winter 2009 |
Fraction of winter average |
|||
| North Mallee (district 76) | ||||||||||||
| Mildura Airport | 17.3 | +1.1 | 27.6 | 15 Aug | 6.1 | +1.1 | −1.8 | 24 Jul | 56.6 | 75.5 | average | 75% |
| Ouyen | 16.7 | +0.8 | 26.7 | 15 Aug | 5.6 | +0.8 | −0.4 | 8 Aug | 82.1 | 93.5 | average | 88% |
| Walpeup Research | 16.3 | +0.9 | 26.5 | 15 Aug | 6.3 | +1.0 | 0.3 | 8 Aug | 89.0 | 97.5 | average | 91% |
| South Mallee (district 77) | ||||||||||||
| Hopetoun Airport | 15.9 | 25.8 | 15 Aug | 4.5 | −3.2 | 8 Aug | 83.4 | |||||
| Swan Hill Aerodrome | 15.9 | +0.4 | 24.3 | 15 Aug | 4.8 | +0.9 | −2.2 | 8 Aug | 100.4 | 84.9 | average | 118% |
| North Wimmera (district 78) | ||||||||||||
| Nhill Aerodrome | 15.2 | 25.8 | 15 Aug | 5.6 | −0.3 | 8 Aug | 114.0 | |||||
| Warracknabeal Museum | 15.2 | +0.4 | 24.2 | 15 Aug | 5.4 | +1.3 | −0.8 | 8 Aug | 157.8 | 122.0 | high | 129% |
| South Wimmera (district 79) | ||||||||||||
| Edenhope Airport | 14.4 | 23.4 | 15 Aug | 6.0 | −0.8 | 10 Jun | 208.2 | |||||
| Grampians | 5.9 | 13.4 | 15 Aug | 1.7 | −2.5 | 10 Jun | 490.0 | |||||
| Horsham Aerodrome | 14.5 | 0.0 | 23.5 | 15 Aug | 4.5 | +1.4 | −2.8 | 8 Aug | 169.4 | 116.1 | high | 146% |
| Horsham Polkemmet Rd | 14.6 | +0.5 | 23.2 | 15 Aug | 4.9 | +0.7 | −2.9 | 8 Aug | 156.0 | 144.9 | average | 108% |
| Kanagulk | 13.9 | 21.1 | 15 Aug | 5.2 | −0.7 | 24 Jul | 194.8 | |||||
| Longerenong | 14.3 | +0.4 | 22.6 | 15 Aug | 4.7 | +0.9 | −2.3 | 8 Aug | 162.0 | 131.5 | high | 123% |
| Pyrenees | 8.2 | 14.2 | 15 Aug | 3.6 | −0.7 | 30 Aug | 274.4 | |||||
| Stawell Aerodrome | 13.4 | +0.1 | 19.5 | 15 Aug | 5.4 | +1.1 | 0.4 | 17 Jun | 215.2 | 165.5 | high | 130% |
| Lower North (district 80) | ||||||||||||
| Charlton | 14.6 | 21.5 | 15 Aug | 5.2 | −1.6 | 8 Aug | 149.0 | |||||
| Echuca Aerodrome | 15.1 | +0.8 | 21.6 | 20 Aug | 4.8 | +0.4 | −1.9 | 8 Aug | 98.0 | 125.4 | average | 78% |
| Kerang | 15.7 | +0.8 | 23.5 | 15 Aug | 5.3 | +0.8 | −1.3 | 8 Aug | 89.5 | 108.0 | average | 83% |
| Kyabram DPI | 14.6 | +0.7 | 20.5 | 20 Aug | 4.7 | +1.2 | −3.0 | 8 Aug | 81.8 | 126.2 | low | 65% |
| Upper North (district 81) | ||||||||||||
| Bendigo Airport | 13.7 | +0.4 | 19.1 | 6 Aug | 3.7 | +0.9 | −3.4 | 8 Aug | 181.8 | 148.6 | high | 122% |
| Shepparton Airport | 14.3 | 0.0 | 19.2 | 28 Aug | 4.2 | +0.7 | −3.2 | 24 Jul | 109.6 | 123.0 | average | 89% |
| Tatura Inst Sustainable Ag | 14.4 | +0.5 | 19.8 | 6 Aug | 4.3 | +0.8 | −3.2 | 24 Jul | 108.0 | 138.0 | low | 78% |
| Yarrawonga | 14.5 | 0.0 | 19.6 | 29 Aug | 4.7 | +1.0 | −1.4 | 8 Aug | 105.0 | 126.6 | average | 83% |
| Lower Northeast (district 82) | ||||||||||||
| Benalla Airport | 14.1 | 17.6 | 28 Aug | 3.9 | −2.6 | 22 Aug | 156.5 | |||||
| Corryong Airport | 12.6 | 18.7 | 28 Aug | 2.2 | −5.1 | 8 Jul | 275.0 | |||||
| Dartmouth Reservoir | 12.7 | +0.2 | 18.3 | 28 Aug | 3.2 | +0.6 | −4.1 | 11 Jun | 275.4 | 342.3 | low | 80% |
| Hunters Hill | 8.1 | −0.1 | 13.1 | 20 Aug | 3.0 | +0.5 | −2.2 | 11 Jun | 448.2 | 424.2 | average | 106% |
| Rutherglen Research | 13.9 | +0.7 | 18.6 | 29 Aug | 4.3 | +1.8 | −2.2 | 8 Jul | 155.6 | 180.7 | average | 86% |
| Strathbogie | 11.0 | 0.0 | 14.6 | 28 Aug | 3.1 | +1.1 | −4.5 | 24 Jul | 304.8 | 354.8 | average | 86% |
| Wangaratta Aero | 13.9 | +0.1 | 18.8 | 29 Aug | 3.7 | +0.9 | −2.5 | 7 Jul | 158.8 | 195.8 | low | 81% |
| Upper Northeast (district 83) | ||||||||||||
| Dinner Plain | 7.3 | 13.8 | 19 Aug | −0.7 | −6.9 | 8 Jul | 205.6 | |||||
| Falls Creek | 1.5 | −0.5 | 7.1 | 23 Jun | −2.2 | +0.2 | −7.0 | 11 Jun | 241.0 | 287.4 | low | 84% |
| Mount Buller | 1.6 | −0.7 | 6.8 | 23 Jun | −2.0 | +0.1 | −7.1 | 24 Jul | 705.0 | 484.7 | very high | 145% |
| Mount Hotham | 0.2 | −0.5 | 5.7 | 23 Jun | −3.3 | −0.2 | −7.9 | 11 Jun | 452.8 | 369.0 | average | 123% |
| Omeo | 11.9 | 16.3 | 28 Aug | 1.8 | −5.9 | 8 Jul | 108.6 | |||||
| East Gippsland (district 84) | ||||||||||||
| Combienbar AWS | 13.2 | +1.3 | 20.9 | 16 Aug | 6.1 | +0.9 | 0.0 | 10 Jun | 155.8 | 225.4 | low | 69% |
| Gabo Island Lighthouse | 16.1 | +1.7 | 23.0 | 24 Aug | 9.2 | +0.5 | 5.5 | 18 Jul | 139.6 | 260.9 | low | 54% |
| Gelantipy | 11.2 | +0.9 | 16.5 | 29 Aug | 3.7 | +1.0 | −1.7 | 24 Jul | 92.0 | 151.8 | low | 61% |
| Lakes Entrance | 16.5 | 23.2 | 15 Aug | 6.5 | −1.8 | 9 Jul | 145.4 | |||||
| Mallacoota | 16.4 | +1.1 | 23.7 | 16 Aug | 6.3 | −0.4 | 1.5 | 25 Jul | 172.8 | 233.1 | average | 74% |
| Mount Nowa Nowa | 14.6 | +1.1 | 20.8 | 28 Aug | 7.1 | +0.7 | 2.6 | 10 Jun | 129.8 | 189.4 | low | 69% |
| Orbost | 16.5 | 24.5 | 16 Aug | 6.3 | 0.3 | 8 Jul | 123.2 | |||||
| Orbost | 17.0 | +1.7 | 24.7 | 16 Aug | 5.0 | +0.3 | −1.3 | 8 Jul | 122.2 | 210.9 | low | 58% |
| Point Hicks | 15.8 | +1.2 | 24.7 | 16 Aug | 9.2 | +0.6 | 4.9 | 10 Jun | 233.1 | 281.7 | average | 83% |
| West Gippsland (district 85) | ||||||||||||
| Bairnsdale Airport | 16.6 | +1.6 | 23.4 | 16 Aug | 4.7 | +0.4 | −3.5 | 8 Jul | 78.4 | 147.8 | low | 53% |
| East Sale Airport | 15.7 | +1.3 | 22.5 | 16 Aug | 3.8 | 0.0 | −3.9 | 8 Jul | 82.0 | 133.8 | low | 61% |
| Morwell | 15.1 | +1.0 | 21.8 | 21 Jul | 4.4 | +0.3 | −2.7 | 10 Jul | 156.2 | 187.2 | low | 83% |
| Mount Baw Baw | 2.9 | −0.2 | 9.8 | 23 Jun | −1.1 | −0.1 | −5.7 | 8 Aug | 350.2 | |||
| Mount Moornapa | 13.9 | +1.2 | 20.4 | 15 Aug | 6.4 | +0.7 | 1.2 | 10 Jun | 125.6 | 194.1 | average | 65% |
| Noojee | 13.6 | +0.9 | 18.2 | 15 Aug | 4.3 | +0.7 | −1.9 | 8 Jul | 307.8 | 315.7 | average | 97% |
| Pound Creek | 14.7 | 20.6 | 15 Aug | 6.1 | −1.9 | 8 Jul | 288.8 | |||||
| Wilsons Promontory Lighthouse | 13.7 | +1.1 | 23.2 | 15 Aug | 9.8 | +1.2 | 6.2 | 2 Jul | 620.0 | 361.6 | very high | 171% |
| Yarram Airport | 15.6 | 21.5 | 30 Jun | 5.1 | −2.1 | 9 Jul | 162.8 | |||||
| East Central (district 86) | ||||||||||||
| Bundoora | 14.9 | +0.9 | 20.0 | 21 Jul | 6.6 | +0.8 | −1.0 | 8 Jul | 134.4 | 161.7 | low | 83% |
| Cerberus | 14.6 | +0.5 | 20.0 | 15 Aug | 6.7 | +0.1 | −0.8 | 8 Jul | 211.2 | 221.7 | average | 95% |
| Coldstream | 14.5 | +0.5 | 19.2 | 15 Aug | 4.2 | +0.3 | −3.5 | 8 Jul | 176.6 | 189.6 | average | 93% |
| Cranbourne Botanic Gardens | 14.4 | +0.5 | 19.2 | 16 Aug | 6.6 | +0.3 | 2.0 | 8 Jul | 232.6 | 224.2 | average | 104% |
| Essendon Airport | 15.1 | +1.5 | 19.7 | 28 Aug | 6.7 | +1.2 | −0.2 | 8 Jul | 91.0 | 131.9 | low | 69% |
| Ferny Creek | 10.3 | +0.7 | 15.0 | 15 Aug | 5.6 | +0.3 | 0.8 | 10 Jun | 261.2 | 259.5 | average | 101% |
| Frankston AWS | 14.0 | +0.7 | 19.5 | 15 Aug | 8.7 | +0.5 | 3.7 | 8 Jul | ||||
| Melbourne Airport | 14.7 | +1.0 | 19.0 | 28 Aug | 6.4 | +0.6 | 0.9 | 8 Jul | 80.2 | 120.3 | low | 67% |
| Melbourne Regional Office | 15.9 | +1.7 | 19.7 | 28 Aug | 8.3 | +1.8 | 3.4 | 8 Jul | 106.8 | 146.8 | low | 73% |
| Moorabbin Airport | 15.2 | +1.0 | 20.4 | 15 Aug | 7.0 | +0.5 | −0.8 | 8 Jul | 147.8 | 185.5 | low | 80% |
| Rhyll | 14.2 | +0.5 | 19.0 | 15 Aug | 8.7 | +0.3 | 4.5 | 8 Jul | 196.8 | 197.3 | average | 100% |
| Scoresby Research Institute | 14.7 | +1.1 | 19.1 | 15 Aug | 6.7 | +0.6 | −0.6 | 8 Jul | 179.6 | 225.2 | low | 80% |
| Viewbank | 15.1 | 20.2 | 15 Aug | 6.6 | −0.5 | 8 Jul | 158.2 | 154.1 | average | 103% | ||
| Wallan | 10.1 | +0.3 | 14.0 | 28 Aug | 4.6 | +0.3 | 0.4 | 22 Aug | 168.2 | 181.3 | average | 93% |
| Wonthaggi | 14.8 | +0.7 | 20.0 | 15 Aug | 6.8 | +0.3 | 2.1 | 8 Jul | 305.3 | 297.1 | average | 103% |
| West Central (district 87) | ||||||||||||
| Avalon Airport | 15.7 | +0.9 | 22.8 | 15 Aug | 5.8 | +0.4 | −1.9 | 8 Jul | 103.8 | 118.8 | average | 87% |
| Grovedale | 14.9 | +0.5 | 21.4 | 15 Aug | 6.1 | +0.3 | −1.4 | 8 Jul | 106.0 | 139.3 | low | 76% |
| Laverton RAAF | 15.8 | +1.6 | 20.9 | 28 Aug | 6.5 | +1.1 | −2.1 | 8 Jul | 79.8 | 122.8 | very low | 65% |
| Sheoaks | 13.6 | +0.8 | 19.8 | 15 Aug | 5.8 | +0.5 | −2.0 | 8 Jul | 102.0 | 118.8 | average | 86% |
| North Central (district 88) | ||||||||||||
| Castlemaine Prison | 12.9 | +0.3 | 17.5 | 28 Aug | 4.3 | +1.1 | −2.4 | 11 Jun | 190.2 | 185.1 | average | 103% |
| Eildon Fire Tower | 10.0 | 0.0 | 14.6 | 28 Aug | 4.7 | +0.4 | −0.3 | 10 Jun | 179.8 | 206.9 | average | 87% |
| Lake Eildon | 13.3 | +0.6 | 18.9 | 15 Aug | 5.0 | +1.0 | −1.2 | 7 Jul | 226.9 | 286.3 | low | 79% |
| Mangalore Airport | 13.6 | +0.3 | 18.4 | 6 Aug | 4.2 | +0.6 | −2.7 | 8 Aug | 99.0 | 175.3 | very low | 56% |
| Maryborough | 13.6 | +0.6 | 18.9 | 30 Jun | 4.5 | +0.7 | −2.8 | 8 Aug | 181.5 | 166.0 | average | 109% |
| Redesdale | 12.8 | +0.2 | 16.8 | 28 Aug | 3.7 | +0.4 | −2.5 | 8 Aug | 192.8 | 185.7 | average | 104% |
| Western Plains (district 89) | ||||||||||||
| Ararat Prison | 13.1 | +0.8 | 18.6 | 15 Aug | 4.8 | +1.2 | −1.8 | 24 Jul | 200.0 | 186.2 | average | 107% |
| Ballarat Aerodrome | 11.7 | +0.9 | 15.7 | 30 Jun | 3.8 | +0.2 | −2.3 | 16 Jul | 190.6 | 204.2 | average | 93% |
| Westmere | 13.2 | 18.6 | 15 Aug | 5.0 | −1.7 | 8 Jul | 216.2 | |||||
| West Coast (district 90) | ||||||||||||
| Aireys Inlet | 14.3 | +0.5 | 20.5 | 15 Aug | 7.8 | +0.2 | 3.5 | 18 Jun | 227.6 | 186.4 | average | 122% |
| Cape Nelson Lighthouse | 14.7 | +0.6 | 22.7 | 15 Aug | 8.7 | 0.0 | 3.8 | 17 Jul | 368.8 | 281.7 | high | 131% |
| Cape Otway Lighthouse | 13.6 | +0.1 | 20.1 | 15 Aug | 8.7 | +0.7 | 4.1 | 8 Jul | 399.6 | 305.7 | very high | 131% |
| Casterton | 14.0 | 21.1 | 15 Aug | 5.8 | −0.9 | 17 Jul | 269.0 | |||||
| Casterton Showgrounds | 14.6 | +0.5 | 20.9 | 15 Aug | 5.8 | +0.5 | −1.1 | 18 Jun | 288.3 | 238.7 | high | 121% |
| Colac | 12.3 | 18.0 | 30 Jun | 5.9 | 2.0 | 8 Aug | 194.8 | |||||
| Dartmoor | 14.5 | 22.8 | 15 Aug | 6.0 | −0.2 | 23 Jul | 372.4 | |||||
| Hamilton Airport | 13.1 | +0.3 | 19.4 | 15 Aug | 5.3 | +0.6 | −0.6 | 17 Jul | 241.8 | 213.3 | average | 113% |
| Mortlake Racecourse | 13.8 | +0.5 | 19.4 | 30 Jun | 5.1 | +0.4 | −1.5 | 17 Jul | 188.6 | 171.5 | average | 110% |
| Port Fairy AWS | 15.1 | +0.5 | 22.6 | 15 Aug | 7.1 | −0.2 | 1.1 | 8 Jul | 426.4 | 249.3 | very high | 171% |
| Portland | 14.0 | +0.4 | 21.2 | 15 Aug | 6.6 | 0.0 | −1.5 | 8 Jul | 384.6 | 315.8 | high | 122% |
| Warrnambool Airport NDB | 14.3 | +0.2 | 21.0 | 15 Aug | 6.0 | +0.4 | 0.5 | 8 Jul | 313.4 | 245.0 | very high | 128% |
| Weeaproinah | 10.1 | +0.6 | 16.0 | 15 Aug | 5.5 | +0.5 | 1.3 | 10 Jun | 733.4 | 669.8 | average | 109% |
Jump to: Summaries Notes the top
Notes
This statement has been prepared based on information available at 11 am on Tuesday 1 September 2009. 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
Dr Harvey SternClimate Meteorologist
Victoria Climate Services Centre
Bureau of Meteorology
Phone (03) 9669 4956
Email climate.vic@bom.gov.au