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MONTHLY CLIMATE SUMMARY - VICTORIA
Rainfall:
October 2004 has seen dry weather dominating much of the State, although welcome near average rainfall fell in the central district. In the northwest, Mildura received 4 mm (normal: 28 mm); in the southwest, Ballarat received 38 mm (normal: 71 mm); in the northeast, Benalla received 20 mm (normal: 65 mm); whilst in the southeast, Sale received 41 mm (normal: 55 mm).
In contrast to these dry figures, the formation of a deep low late in the month over eastern Bass Strait rainfall in the central districts was close to or above normal with Melbourne receiving 65 mm (normal: 65 mm). Over a two-day period, about 50 mm of rain fell across central Victoria as a consequence of the formation of a deep low late in the month over eastern Bass Strait.
Temperature:
A mid-month heatwave was accompanied by temperatures rising over 30 deg C across the State, with Mildura and Walpeup registering the State's highest October reading on record ... 40.2 deg C on October 12. Ouyen also registered its all-time October high, with 40.1 deg C on the same day. Mildura's mean maximum temperature of 27.0 deg C was the highest October mean on record ... beating the previous record of 26.9 deg C in 1991.
Across the State, daytime temperatures were about 2 deg C above normal in most districts, the warmest October maxima since 1991, whilst night-time temperatures were generally between half a degree and one degree above normal except in parts of the North where temperatures were slightly below normal. In the northwest, Mildura minimum and maximum temperatures averaged 10.3 deg C to 27.0 deg C (normals: 10.0/23.9); in the southwest, Ballarat minimum and maximum temperatures averaged 6.2 deg C to 17.8 deg C (normals: 6.4/16.6); in the northeast, Benalla minimum and maximum temperatures averaged 7.6 deg C to 22.6 deg C (normals: 7.5/21.2); whilst in the southeast, Sale minimum and maximum temperatures averaged 7.3 deg C to 19.8 deg C (normals: 7.6/19.2).
In the central district, Melbourne minimum and maximum temperatures averaged 11.4 deg C to 21.1 deg C (normals: 8.7/17.2), whilst Echuca minimum and maximum temperatures averaged 5.5 deg C to 17.7 deg C (normals: 10.3/19.6).
Included in this summary are a table of State extremes, some new records, and summaries for sites across the State. Links to the Seasonal Outlook and El Nino Wrap Up.
Weather extremes during October 2004 | |||
|---|---|---|---|
| Highest temperature Hottest day |
40.2 °C | Mildura Airport on 12th | |
| Highest mean daily maximum temperature Warmest days on average |
27.0 °C | Mildura Airport | |
| Lowest mean daily maximum temperature Coolest days on average |
8.3 °C | Mt Hotham | |
| Lowest daily maximum temperature Coldest day |
1.2 °C | Mt Hotham on 15th | |
| Lowest temperature Coldest night |
-6.6 °C | Mt Hotham on 16th | |
| Lowest mean daily minimum temperature Coldest nights on average |
1.1 °C | Mt Hotham | |
| Highest mean daily minimum temperature Mildest nights on average |
11.4 °C | Melbourne Regional Office | |
| Highest daily minimum Warmest night |
21.2 °C | Orbost on 13th | |
| Highest total rainfall Wettest overall |
110.0 mm | Noojee (Slivar) | |
| Lowest total rainfall Driest overall |
3.0 mm | Ouyen (Post Office) | |
| Highest daily rainfall Wettest day |
51.6 mm | Mt Hotham on 14th | |
Record Lowest Total Rainfall for October |
||||
|---|---|---|---|---|
|
Total rainfall for October 2004 (mm) |
Previous lowest for October |
Years of record |
||
| Albury Airport | 8.3 | 10.2 | in 1991 |
22 |
Record Highest Mean Maximum Temperature for October |
||||
|---|---|---|---|---|
|
Mean daily maximum temperature for October 2004 (°C) |
Previous highest for October |
Years of record |
||
| Mildura Airport | 27.0 | 26.9 | in 1991 |
59 |
| Portland | 18.1 | 18.0 | in 1999 |
23 |
Record Highest Temperature for October |
|||||
|---|---|---|---|---|---|
|
Highest temperature in October 2004 (°C) |
Previous highest for October |
Years of record |
|||
| Horsham | 37.8 | on 12th |
36.7 | on 20th in 1957 |
97 |
| Kerang | 37.8 | on 12th |
37.6 | on 29th in 1990 |
96 |
| Longerenong | 37.6 | on 12th |
36.3 | on 29th in 1990 |
67 |
| Orbost | 34.0 | on 12th |
33.5 | on 27th in 1977 |
64 |
| Mildura Airport | 40.2 | on 12th |
40.0 | on 30th in 1965 |
115 |
| Walpeup Research | 40.2 | on 12th |
38.6 | on 17th in 1998 |
55 |
| Casterton Showgrounds | 33.9 | on 12th |
33.5 | on 27th in 1977 |
45 |
| Ararat Prison | 33.0 | on 12th |
32.7 | on 28th in 1977 |
35 |
| Portland | 32.0 | on 12th |
32.0 | on 31st in 1987 |
23 |
| Weeaproinah | 26.8 | on 12th |
26.4 | on 31st in 1987 |
23 |
| Hamilton Airport | 31.4 | on 12th |
30.2 | on 25th in 1997 |
22 |
| Ouyen | 40.1 | on 12th |
39.4 | on 30th in 1965 |
47 |
Record Highest Daily Minimum Temperature for October |
||||||
|---|---|---|---|---|---|---|
|
Highest daily minimum temperature in October 2004 (°C) |
Previous highest for October |
Years of record |
||||
| Maryborough | 17.4 | on 13th |
17.4 | on 13th in 1977 |
98 | |
| Bairnsdale Airport | 18.4 | on 13th |
18.1 | on 11th in 1997 |
25 | |
| Morwell | 16.6 | on 13th |
15.3 | on 10th in 1999 |
20 | |
Record Lowest Temperature for October |
||||||
|---|---|---|---|---|---|---|
|
Lowest temperature in October 2004 (°C) |
Previous lowest for October |
Years of record |
||||
| Horsham | -1.5 | on 16th |
-1.2 | on 1st in 2002 |
97 | |
| Longerenong | -3.1 | on 16th |
-2.0 | on 9th in 2002 |
71 | |
Summary statistics for October 2004 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Maximum temperatures for October (°C) |
Minimum temperatures for October (°C) |
Rainfall for October (mm) |
||||||
| Mean for 2004 | Difference from normal | Highest for 2004 | Mean for 2004 | Difference from normal | Lowest for 2004 | Total for 2004 | Normal total | |
| Albury Airport | 22.6 | +1.9 |
30.6 | 8.9 | +1.1 |
2.4 | 8 | 75 |
| Bairnsdale Airport | 19.7 | +0.2 |
31.7 | 7.5 | 0.0 |
3.1 | 38 | 65 |
| Ballarat Aerodrome | 17.8 | +1.2 | 29.0 | 6.2 | -0.2 | -1.0 | 38 | 71 |
| Benalla | 22.6 | +1.4 | 30.4 | 7.6 | +0.1 | 1.0 | 20 | 65 |
| Bendigo Airport | 22.1 | +2.1 |
34.3 | 6.0 | -2.2 |
-1.1 | 17 | 56 |
| Cape Otway Lighthouse | 17.3 | +0.9 | 31.0 | 10.6 | +1.1 | 7.0 | 46 | 89 |
| Castlemaine Prison | 20.5 | +1.1 | 33.3 | 6.3 | -0.2 | -1.8 | 25 | 65 |
| Cerberus | 18.7 | +1.1 |
31.0 | 9.3 | -1.3 |
4.2 | 56 | 70 |
| Colac | 17.6 | -0.9 |
28.5 | 8.2 | +1.3 |
3.7 | 34 | 83 |
| Coldstream | 19.8 | +0.6 |
29.3 | 6.9 | -0.1 |
2.8 | 64 | 85 |
| East Sale Airport | 19.8 | +0.6 | 32.2 | 7.3 | -0.3 | 2.8 | 41 | 55 |
| Echuca Aerodrome | 24.3 | +2.4 | 37.0 | 6.7 | -1.9 | 1.6 | 10 | 41 |
| Geelong Airport | 19.5 | +0.9 |
32.6 | 8.1 | +0.4 |
3.6 | 38 | 64 |
| Hamilton Airport | 18.9 | +1.4 |
31.4 | 6.5 | -0.2 |
0.1 | 32 | 64 |
| Horsham | 23.5 | +2.5 | 37.8 | 5.3 | -2.3 | -1.5 | 7 | 47 |
| Kerang | 25.0 | +2.6 | 37.8 | 8.5 | -0.6 | 4.4 | 9 | 41 |
| Kilmore Gap | 16.3 | NA |
25.2 | 7.4 | NA |
2.2 | 33 | NA |
| Lake Eildon Goulburn Murray Water | 21.2 | +1.8 | 30.4 | 7.1 | 0 | 1.9 | 31 | 82 |
| Longerenong | 23.4 | +2.8 | 37.6 | 5.7 | -1.3 | -3.1 | 8 | 46 |
| Mangalore Airport | 21.8 | +1.4 | 29.9 | 6.5 | -0.9 | -0.2 | 21 | 51 |
| Maryborough | 21.3 | +1.5 | 34.2 | 7.1 | -0.2 | 1.1 | 13 | 60 |
| Melbourne Regional Office | 21.1 | +1.5 | 32.5 | 11.4 | +1.1 | 6.7 | 65 | 65 |
| Mildura Airport | 27.0 | +3.1 | 40.2 | 10.3 | +0.3 | 4.6 | 4 | 28 |
| Morwell | 20.1 | +1.0 |
31.1 | 7.9 | +0.2 |
4.1 | 46 | 86 |
| Mt Hotham | 8.3 | +0.8 |
15.6 | 1.1 | +0.9 |
-6.6 | 99 | 184 |
| Nhill | 23.0 | +2.0 | 37.4 | 5.6 | -1.3 | -2.4 | 7 | 45 |
| Noojee | 18.4 | NA |
29.6 | 6.9 | NA |
4.3 | 110 | NA |
| Orbost | 19.7 | -0.4 |
33.0 | 9.5 | +0.9 |
3.1 | 49 | 76 |
| Ouyen | 26.4 | +2.7 | 40.1 | 9.4 | +0.5 | 3.6 | 3 | 33 |
| Point Hicks | 19.2 | +0.9 | 30.6 | 10.7 | -0.2 | 4.5 | 65 | 80 |
| Portland | 18.1 | +1.5 |
32.0 | 8.6 | +0.3 |
2.6 | 44 | 64 |
| Shepparton Airport | 23.3 | +2.2 |
33.9 | 6.2 | -1.9 |
0.5 | 19 | 48 |
| Stawell Aerodrome | 20.9 | +1.9 |
34.6 | 7.2 | -0.3 |
0.3 | 12 | 61 |
| Swan Hill Aerodrome | 25.5 | +2.7 |
38.0 | 7.9 | -1.5 |
3.0 | 5 | 34 |
| Wangaratta Aero | 22.1 | +1.4 |
30.3 | 5.5 | -1.4 |
0.0 | 11 | 63 |
| Warracknabeal Museum | 24.0 | +4.8 |
37.6 | 9.0 | +2.2 |
-0.6 | 9 | 49 |
| Warrnambool Airport Ndb | 18.8 | +1.7 |
29.1 | 7.5 | +0.1 |
0.8 | 50 | 82 |
| Wilsons Promontory Lighthouse | 16.3 | +0.6 | 30.6 | 11.2 | +0.9 | 7.7 | 61 | 92 |
| Wonthaggi | 18.6 | +0.8 | 30.6 | 9.7 | +1.1 | 6.5 | 62 | 89 |
| Yarrawonga | 23.8 | NA |
35.9 | 6.4 | NA |
0.6 | 5 | NA |
This statement has been prepared based on information available at
1 PM on Monday 1 November 2004
. Although every effort has been made to check them,
it is possible that results may change as new information becomes available.
Long term averages are calculated using the WMO standard of 1961 to 1990.
Localities with blank averages may not have long enough records for a WMO
average. However, climate averages for nearby Victoria localities are available
here.
Please use the following localities to cover these regions: Coldstream for the Yarra
Glen area; Ceberus for the Mornington Peninsula; Morwell for the Latrobe Valley;
Mangalore for Seymour; Mt Hotham for the Alpine area.
Daily Weather Observations for selected Victoria localities are available
here.
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