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MONTHLY CLIMATE SUMMARY - VICTORIA
August 2004 has seen welcome slightly above average rainfall falling across the grain growing Mallee and Wimmera Districts, with most other areas receiving near to average totals.
In the Mallee, Annuello received 47.2 mm (normal: 33.0 mm), Murrayville received 45.6 mm (normal: 33.9 mm), and Walpeup received 44.2 mm (normal: 35.4 mm), whilst Mildura received 24.6 mm (normal: 28.7 mm).
In the Wimmera, Yanac North received 63.2 mm (normal: 47.9 mm), Nhill received 66.9 mm (normal: 51.2 mm), and Kaniva received 61.8 mm (normal: 57.5 mm), whilst St Arnaud received 48.6 mm (normal: 62.1 mm).
Melbourne received 71.4 mm (normal: 57.4 mm) for the month. Heavier totals were recorded in the eastern suburbs, with Croydon receiving 107.1 mm (normal: 93.8 mm), and Warrandyte receiving 110.0 mm (normal: 76.4 mm). Melbourne recorded 10 consecutive day of rain, 2nd to 11th August. The longest "wet spell" for 8 years! The last time this occurred was in June 1996. The longest wet spell ever is 18 days in 1934.
Over the Winter as a whole, rainfall was close to average in most Districts - the exceptions being Gippsland and the Northern Country, both of which received slightly below average falls. Melbourne received 137.2 mm for the season (normal: 148.7 mm).
August 2004 temperatures averaged a degree above normal during the daytime (largely on account of an exceptional warm spell towards the end of the month) and near normal overnight.
The month's warmest day was August 25, when Mildura reached a summery 27.9 deg C, Hopetoun 27.6 deg C, Walpeup 27.5 deg C, and Ouyen 27.4 deg C.
The month's coldest night was that of August 15/16, when Yarrawonga's temperature plunged to minus 6.8 deg C, and Echuca's to minus 3.0 deg C.
Melbourne's average maximum temperature of 16.4 deg C was relatively warm in contrast to a normal of 15.0 deg C, but the average concealed a bitterly cold Saturday (August 14), when the maximum temperature was only 9.8 deg C (the lowest maximum temperature in August for 26 years - since 12 August 1978, when the maximum temperature was 9.6 deg C). 22.9 deg C, recorded on 28 August, was the highest maximum temperature in August for 5 years - since 31 August 1999, when the maximum temperature was 23.3 deg C. Melbourne enjoyed 3 consecutive days above 20°C, the longest "warm spell" in August since 1999. Melbourne's average minimum temperature was 8.0 deg C (normal: 7.4 deg C).
Over the Winter as a whole, both maximum and minimum temperatures averaged about half a degree above normal. For the season, Melbourne's average minimum temperature was 8.2 deg (normal: 7.1 deg C), whilst the average maximum temperature was 15.2 deg C (normal: 14.3 deg C).
Included in this summary are a table of State extremes, some new records, and summaries for sites across the State.
Weather extremes during August 2004 | |||
|---|---|---|---|
| Highest temperature Hottest day |
27.9 °C | Mildura Airport on 25th | |
| Highest mean daily maximum temperature Warmest days on average |
18.3 °C | Mildura Airport | |
| Lowest mean daily maximum temperature Coolest days on average |
0.1 °C | Mt Hotham | |
| Lowest daily maximum temperature Coldest day |
-3.8 °C | Mt Hotham on 3rd | |
| Lowest temperature Coldest night |
-6.8 °C | Yarrawonga on 16th | |
| Lowest mean daily minimum temperature Coldest nights on average |
-3.3 °C | Mt Hotham | |
| Highest mean daily minimum temperature Mildest nights on average |
9.1 °C | Wilsons Promontory Lighthouse | |
| Highest daily minimum Warmest night |
16.8 °C | Moorabbin Airport on 26th | |
| Highest total rainfall Wettest overall |
244.4 mm | Weeaproinah | |
| Highest daily rainfall Wettest day |
80.0 mm | Falls Creek on 15th | |
Record Highest Daily Minimum Temperature for August |
||||||
|---|---|---|---|---|---|---|
|
Highest daily minimum temperature in August 2004 (°C) |
Previous highest for August |
Years of record |
||||
| Laverton RAAF | 14.9 | on 26th |
14.5 | on 26th in 1977 |
61 | |
| Scoresby Research Institute | 15.9 | on 26th |
14.6 | on 31st in 1999 |
45 | |
| Essendon Airport | 14.0 | on 26th |
12.2 | on 21st in 1954 |
35 | |
| Moorabbin Airport | 16.8 | on 26th |
15.4 | on 20th in 1980 |
31 | |
| Strathbogie | 11.6 | on 26th |
11.0 | on 16th in 2001 |
27 | |
| Bundoora | 15.0 | on 26th |
14.6 | on 20th in 1980 |
22 | |
| Noojee | 15.2 | on 26th |
12.7 | on 16th in 2001 |
21 | |
Record Lowest Temperature for August |
||||||
|---|---|---|---|---|---|---|
|
Lowest temperature in August 2004 (°C) |
Previous lowest for August |
Years of record |
||||
| Walpeup Research | -1.0 | on 15th |
-0.6 | on 24th in 2002 |
56 | |
Summary statistics for August 2004 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Maximum temperatures for August (°C) |
Minimum temperatures for August (°C) |
Rainfall for August (mm) |
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| Mean for 2004 | Difference from normal | Highest for 2004 | Mean for 2004 | Difference from normal | Lowest for 2004 | Total for 2004 | Normal total | |
| Ararat Prison | 13.2 | +0.6 | 19.2 | 3.8 | -0.3 | -2.1 | 60 | 71 |
| Avalon Airport | 15.5 | 22.5 | 5.3 | 0.1 | 64 | |||
| Bairnsdale Airport | 16.4 | 24.8 | 4.4 | -1.8 | 50 | |||
| Ballarat Aerodrome | 12.3 | +0.9 | 17.6 | 3.8 | +0.1 | -1.8 | 83 | 77 |
| Benalla | 15.1 | +0.6 | 22.5 | 4.3 | +0.4 | -0.8 | 58 | 81 |
| Bundoora | 15.1 | 21.8 | 6.0 | 0.8 | 59 | |||
| Cape Otway Lighthouse | 13.7 | +0.3 | 20.0 | 8.8 | +0.9 | 4.0 | 106 | 119 |
| Casterton Showgrounds | 14.7 | +0.1 | 21.0 | 6.0 | +0.4 | -1.5 | 91 | 85 |
| Castlemaine Prison | 13.3 | -0.1 | 19.8 | 3.5 | 0 | -2.1 | 50 | 70 |
| Corryong | 14.4 | 21.5 | 3.0 | -1.0 | 129 | 94 | ||
| Dartmouth Reservoir | 13.9 | 21.2 | 3.4 | -1.0 | 103 | |||
| East Sale Airport | 15.8 | +0.9 | 24.6 | 4.1 | -0.2 | -2.6 | 42 | 49 |
| Echuca Aerodrome | 16.5 | +1.1 | 24.2 | 3.8 | -1.1 | -3.0 | 21 | 47 |
| Essendon Airport | 15.9 | 22.7 | 6.2 | -0.1 | 59 | 57 | ||
| Gabo Island Lighthouse | 15.3 | +1.0 | 22.7 | 8.8 | 0 | 5.5 | 28 | 81 |
| Hamilton Airport | 13.4 | 19.0 | 5.7 | 0.8 | 100 | |||
| Horsham | 15.1 | +0.1 | 24.0 | 4.2 | -0.4 | -1.0 | 59 | 51 |
| Kerang | 16.7 | +0.9 | 25.6 | 4.8 | -0.6 | -1.0 | 32 | 49 |
| Kyabram | 15.6 | +1.1 | 23.1 | 3.7 | -0.1 | -2.9 | 26 | 49 |
| Lake Eildon Goulburn Murray Water | 14.1 | +0.8 | 21.1 | 4.5 | +0.1 | 0.0 | 112 | 114 |
| Lakes Entrance | 16.0 | +0.4 | 25.3 | 7.7 | +1.6 | 3.6 | 41 | 56 |
| Laverton RAAF | 15.6 | +0.6 | 22.9 | 5.9 | +0.3 | 0.3 | 64 | 51 |
| Longerenong | 14.7 | 0 | 24.3 | 4.1 | -0.2 | -2.3 | 39 | 48 |
| Mallacoota | 16.0 | 22.3 | 5.8 | 1.9 | 47 | |||
| Mangalore Airport | 14.5 | +0.4 | 21.4 | 4.0 | -0.2 | -0.1 | 46 | 71 |
| Maryborough | 14.2 | +0.5 | 21.0 | 4.0 | -0.1 | 0.8 | 46 | 65 |
| Melbourne Airport | 15.3 | +1.3 | 21.9 | 6.4 | +0.6 | 1.1 | 66 | 51 |
| Melbourne Regional Office | 16.4 | +1.4 | 22.9 | 8.0 | +0.6 | 2.0 | 71 | 57 |
| Mildura Airport | 18.3 | +1.3 | 27.9 | 5.7 | +0.3 | -0.3 | 25 | 29 |
| Moorabbin Airport | 15.1 | +0.3 | 23.2 | 7.1 | +0.3 | -0.1 | 77 | 72 |
| Morwell | 15.5 | 24.4 | 4.3 | -2.3 | 58 | |||
| Nhill | 15.8 | +0.8 | 25.5 | 4.8 | +0.4 | -1.3 | 67 | 51 |
| Noojee | 13.9 | 21.2 | 4.1 | -1.1 | 110 | |||
| Omeo Comparison | 13.4 | +1.7 | 19.1 | 1.6 | +1.1 | -3.9 | 29 | 67 |
| Orbost | 17.0 | +0.8 | 26.1 | 4.8 | -0.4 | -0.8 | 44 | 68 |
| Ouyen | 18.0 | +1.1 | 27.4 | 5.8 | +0.7 | 0.5 | 34 | 37 |
| Phillip Island Penguin Reserve | 14.9 | 22.5 | 5.7 | -1.0 | 57 | |||
| Point Hicks | 15.8 | +1.1 | 24.6 | 8.4 | +0.1 | 4.8 | 35 | 90 |
| Portland | 13.9 | 20.1 | 6.8 | 0.5 | 140 | |||
| Redesdale | 13.8 | 20.0 | 2.9 | -1.1 | 43 | 71 | ||
| Rutherglen Research | 14.4 | +0.4 | 22.0 | 3.6 | +0.5 | -2.0 | 46 | 71 |
| Scoresby Research Institute | 14.9 | +0.9 | 22.6 | 6.6 | 0 | 0.2 | 114 | 88 |
| Strathbogie | 11.7 | 18.6 | 2.7 | -3.1 | 94 | 136 | ||
| Tatura Inst Sustainable Ag | 15.2 | +0.7 | 23.4 | 3.9 | -0.2 | -1.1 | 41 | 51 |
| Walpeup Research | 17.5 | +1.2 | 27.5 | 6.1 | +0.6 | -1.0 | 44 | 40 |
| Warracknabeal Museum | 16.2 | 25.6 | 5.1 | -2.0 | 48 | 48 | ||
| Weeaproinah | 10.2 | 15.6 | 5.1 | 1.3 | 244 | 240 | ||
| Wilsons Promontory Lighthouse | 13.1 | +0.7 | 18.9 | 9.1 | +0.5 | 5.7 | 131 | 121 |
| Wonthaggi | 15.4 | +1.2 | 23.0 | 6.8 | +0.2 | 2.1 | 108 | 103 |
This statement has been prepared based on information available at 2 PM on Tuesday 31 August 2004 . Although every effort has been made to check them, it is possible that results will change as new information becomes available.
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