Friday, 1 August 2008 - Monthly Climate Summary for Victoria - Product code IDCKGC16R0

Victoria in July 2008

A cold and wet July

Summary

July's average rainfall across much of Victoria has revived hopes of many. But it is reasonable to refer to the rainfall as "catch-up". It hasn't produced much run-off and a dry autumn following more than a decade of below average falls has meant that the ground has soaked up almost every drop. Low pressure systems shearing off from a broad trough over the Southern Ocean have been responsible for most of the precipitation.

It has also been cold, with most overnight and daytime temperatures averaging about half a degree below normal. The cold weather, combined with the precipitation, has resulted in good snowfalls over the alps.

In Melbourne, the average overnight minimum temperature was 6.8 deg C (normal 6.5 deg C) - the lowest average minimum since July 1998, when the average was 6.1 deg C, whilst the average daytime maximum temperature was 14.2 deg C (normal 13.7 deg C). Rainfall totalled 44.2 mm (normal 48.8 mm).

Much of Victoria has nearly a 50% chance of the wet weather continuing over the next three months (August to October). Specifically, there is a 50% chance of above normal falls in the south of the State, whilst in the Mallee there is a 40% chance of above normal falls. Most of the rest of northern Victoria has a 45% chance of exceeding normal rainfall. However, the cold weather is not likely to continue, there being a 70% chance of above normal temperatures over the next three months.Jump to:  Extremes  Records  Summaries  Notes  the top

Rainfall

The wettest overall was 227.0 mm at Weeaproinah. The driest overall was 18.6 mm at Mildura Airport. The wettest single day 52.2 mm at Mortlake Racecourse on the 8th.

Temperature

Maximum temperature

The hottest day was 20.0°C at Lakes Entrance (Eastern Beach Road) on the 6th, fand also 20.0°C at Orbost on that day. The warmest days on average were 15.3°C at Orbost. The coolest days on average were −1.7°C at Mount Hotham. The coldest day was −3.8°C at Mount Hotham on the 8th. Some sites had their coldest July day (lowest maximum temperature) on record.

Minimum temperature

The coldest night was −7.8°C at Mount Hotham on the 24th. The coolest nights on average were −4.9°C at Mount Hotham. The warmest nights on average were 8.7°C at Wilsons Promontory Lighthouse. The warmest night was 12.2°C at Point Hicks (Lighthouse) on the 7th. Some sites had their lowest July mean daily minimum temperature for at least 20 years.

Wind

The strongest wind gust was 148 km/h at Wilsons Promontory Lighthouse on the 21st.

Further information

Dr Harvey Stern
Climate Meteorologist
Victoria Climate Services Centre
Bureau of Meteorology
Phone (03) 9669 4956
Email climate.vic@bom.gov.au

Extremes

Hottest day
Highest temperature
20.0°C at Lakes Entrance (Eastern Beach Road) on the 6th
20.0°C at Orbost on the 6th
Warmest days on average
Highest mean daily maximum temperature
15.3°C at Orbost
Coolest days on average
Lowest mean daily maximum temperature
−1.7°C at Mount Hotham
Coldest day
Lowest daily maximum temperature
−3.8°C at Mount Hotham on the 8th
Coldest night
Lowest temperature
−7.8°C at Mount Hotham on the 24th
Coolest nights on average
Lowest mean daily minimum temperature
−4.9°C at Mount Hotham
Warmest nights on average
Highest mean daily minimum temperature
8.7°C at Wilsons Promontory Lighthouse
Warmest night
Highest daily minimum temperature
12.2°C at Point Hicks (Lighthouse) on the 7th
Wettest overall
Highest total rainfall
227.0 mm at Weeaproinah
Driest overall
Lowest total rainfall
18.6 mm at Mildura Airport
Wettest day
Highest daily rainfall
52.2 mm at Mortlake Racecourse on the 8th
Highest wind gust
148 km/h at Wilsons Promontory Lighthouse on the 21st

Records

Record lowest July daily maximum temperature
Lowest daily maximum
temperature
in July 2008 (°C)
Previous lowest
for July
Years of
record
Normal for
July
Portland (Cashmore Airport) 8.5 on the 29th 8.7 on the 10th in 1997 27 13.1



Lowest July mean daily minimum temperature for at least 20 years
Mean daily minimum
temperature
for July 2008 (°C)
Most recent lower
for July
Years since
lower
Normal for
July
Bairnsdale Airport 3.0 2.8 in 1987 21 3.9



Summaries

This table is very wide and may not fit if printed.

Summary statistics for July 2008
Maximum temperatures
for July
(°C)
Minimum temperatures
for July
(°C)
Rainfall
for July
(millimetres)
Mean for
July
2008
Diff
from
normal
Highest for
July
2008
Mean for
July
2008
Diff
from
normal
Lowest for
July
2008
Total for
July
2008
Normal
for
July
Rank of
July
2008
Fraction of
July
normal
North Mallee (district 76)
Mildura Airport 15.1 −0.3 18.0 19th 4.4 0 −1.0 29th 18.6 26.3 normal 71%
Ouyen 14.6 −0.6 19.2 31st 4.3 0 −0.5 29th 35.9 31.2 normal 115%
Walpeup Research 14.2 −0.4 19.2 31st 4.8 0 −0.3 27th 28.0 33.3 normal 84%
South Mallee (district 77)
Hopetoun Airport 14.1 16.4 25th 3.5 −3.5 29th 28.0
Swan Hill Aerodrome 14.4 −0.2 17.6 6th 4.1 +0.6 −1.5 24th 36.2 29.1 normal 124%
North Wimmera (district 78)
Nhill 13.1 −0.6 16.5 13th 3.3 −0.2 −2.3 29th 44.4 45.0 normal 99%
Nhill Aerodrome 13.3 16.9 13th 4.2 −0.2 23rd 45.6
Warracknabeal Museum 13.3 −0.7 15.5 20th 3.9 +0.2 −1.8 29th 40.6 40.4 normal 100%
South Wimmera (district 79)
Edenhope Airport 12.5 16.9 13th 4.6 −2.2 23rd 61.8
Grampians 3.8 6.3 31st 0.3 −2.6 29th 180.4
Horsham Aerodrome 12.6 −1.1 15.0 31st 2.9 −0.1 −3.0 29th 50.8 37.7 very high 135%
Horsham Polkemmet Rd 12.7 −0.6 15.4 13th 3.2 −0.5 −2.5 29th 47.9 48.1 normal 100%
Kanagulk 11.9 14.3 25th 3.8 −2.2 29th 60.0
Longerenong 12.7 −0.6 14.9 25th 3.6 +0.3 −1.9 29th 47.2 42.5 normal 111%
Pyrenees 6.4 10.0 14th 2.3 −0.6 8th 102.4
Stawell Aerodrome 11.6 −1.0 14.9 14th 4.0 +0.1 −1.7 29th 81.6 54.4 high 150%
Lower North (district 80)
Charlton 12.8 15.4 5th 3.7 −1.6 24th 42.2
Echuca Aerodrome 13.8 +0.4 17.8 14th 3.5 −0.5 −1.6 23rd 35.0 42.3 normal 83%
Kerang 14.2 +0.1 17.7 6th 4.2 +0.2 −1.0 24th 25.4 36.3 normal 70%
Kyabram DPI 13.2 +0.2 17.3 14th 3.7 +0.7 −2.0 24th 48.4 44.3 normal 109%
Upper North (district 81)
Bendigo Airport 11.7 −0.8 15.0 14th 3.2 +0.9 −1.2 23rd 64.2 50.4 normal 127%
Shepparton Airport 12.9 −0.4 17.1 14th 3.1 −0.1 −2.6 24th 57.8 42.5 high 136%
Tatura Inst Sustainable Ag 13.0 0 17.0 14th 3.4 +0.5 −2.6 24th 59.4 48.4 high 123%
Yarrawonga 13.5 0 17.7 14th 3.5 +0.1 −1.6 23rd 47.6 48.9 normal 97%
Lower Northeast (district 82)
Benalla Airport 13.0 17.0 14th 3.2 −1.9 24th 77.9
Corryong Airport 11.3 15.7 14th 0.9 −4.1 24th 111.6
Dartmouth Reservoir 11.3 −0.4 16.0 14th 1.8 −0.3 −2.2 25th 158.2 113.4 high 140%
Hunters Hill 6.7 −0.5 11.6 14th 1.6 −0.3 −1.2 22nd 188.0 157.5 normal 119%
Rutherglen Research 12.9 +0.6 17.3 14th 2.3 +0.3 −3.1 24th 67.6 62.1 normal 109%
Strathbogie 9.9 −0.2 13.9 14th 1.9 +0.3 −4.1 24th 159.8 123.8 high 129%
Wangaratta Aero 12.8 −0.1 16.8 14th 2.3 −0.1 −3.1 23rd 89.2 67.6 high 132%
Upper Northeast (district 83)
Dinner Plain 5.3 9.6 14th −2.3 −7.7 24th 64.2
Falls Creek −0.2 −1.6 3.0 14th −3.7 −0.8 −6.9 23rd 77.8 81.5 normal 95%
Mount Buller 0.0 −1.5 3.1 14th −3.3 −0.7 −5.9 23rd 160.2 172.2 normal 93%
Mount Hotham −1.7 −1.8 0.6 6th −4.9 −1.3 −7.8 24th 116.6 133.4 normal 87%
Omeo 10.1 15.3 14th 0.5 −5.4 26th 55.0
East Gippsland (district 84)
Combienbar AWS 11.0 0 16.5 20th 4.2 −0.6 0.2 28th 86.8 86.6 normal 100%
Gabo Island Lighthouse 14.5 +0.6 19.0 6th 7.6 −0.7 6.2 10th 52.0 85.2 low 61%
Gelantipy 9.5 0 13.8 14th 1.6 −0.5 −1.4 9th 57.4 53.3 normal 108%
Lakes Entrance 14.6 20.0 6th 5.2 −0.1 25th 53.8
Mallacoota 14.5 −0.3 18.6 6th 5.1 −1.2 2.2 17th 51.0 85.8 low 59%
Mount Nowa Nowa 12.7 −0.1 17.2 6th 5.6 −0.3 3.0 9th 68.0 63.7 normal 107%
Orbost 14.8 19.6 6th 4.3 0.2 13th 47.8
Orbost 15.3 +0.5 20.0 6th 3.2 −1.0 −1.2 13th 48.0 68.2 normal 70%
Point Hicks 14.3 +0.2 19.0 6th 5.4 5th 70.7 98.4 normal 72%
West Gippsland (district 85)
Bairnsdale Airport 14.7 +0.3 19.4 6th 3.0 −0.9 −2.2 25th 40.0 51.9 normal 77%
East Sale Airport 13.5 −0.2 17.9 6th 2.2 −1.1 −3.2 13th 34.8 41.7 normal 83%
Morwell 13.1 −0.5 17.1 14th 2.7 −1.0 −2.2 13th 70.0 66.9 normal 105%
Mount Baw Baw 1.2 −1.3 6.3 14th −2.3 −0.9 −5.4 24th 131.8
Mount Moornapa 11.5 −0.4 17.0 6th 4.9 −0.2 2.1 24th 61.6 60.8 normal 101%
Noojee 12.0 +0.1 17.3 14th 2.9 0 −1.8 25th 101.2 104.9 normal 96%
Pound Creek 13.4 17.3 14th 4.0 −1.0 24th 110.8
Wilsons Promontory Lighthouse 12.3 +0.2 15.6 14th 8.7 +0.3 5.0 11th 120.2 122.6 normal 98%
Yarram Airport 13.7 18.1 6th 3.3 −1.8 25th 59.4
East Central (district 86)
Bundoora 13.2 0 18.1 14th 5.2 −0.2 0.1 25th 49.4 49.4 normal 100%
Cerberus 13.3 −0.3 17.1 14th 4.4 −1.9 −1.3 29th 87.2 77.5 normal 113%
Coldstream 13.1 0 17.5 14th 3.2 −0.5 −2.9 25th 60.6 59.5 normal 102%
Cranbourne Botanic Gardens 13.1 −0.1 17.9 14th 5.3 −0.8 0.0 24th 80.7 68.1 normal 119%
Essendon Airport 13.4 +0.5 18.1 14th 5.2 0 −0.3 25th 47.2 44.2 normal 107%
Ferny Creek 9.0 0 13.9 14th 4.8 −0.1 2.5 9th 71.8 88.1 normal 81%
Frankston AWS 13.0 +0.3 17.9 14th 7.6 −0.3 1.8 24th
Melbourne Airport 12.9 −0.1 17.3 14th 5.1 −0.2 0.1 29th 36.8 36.2 normal 102%
Melbourne CBD 14.2 +0.5 18.9 14th 6.8 +0.3 3.4 29th 44.2 47.6 normal 93%
Moorabbin Airport 13.7 +0.1 18.3 14th 5.5 −0.5 0.1 25th 62.8 63.9 normal 98%
Rhyll 13.1 −0.1 17.1 14th 7.5 −0.6 4.8 25th 93.0 66.5 high 140%
Scoresby Research Institute 13.3 +0.3 17.4 14th 5.1 −0.6 −0.1 29th 71.6 74.4 normal 96%
Viewbank 13.4 18.4 14th 5.1 0.4 29th 60.4
Wallan 8.8 −0.2 12.6 14th 3.8 0 1.0 29th 71.4 61.8 normal 116%
Wonthaggi 13.7 +0.2 19.2 14th 5.0 −1.0 2.2 5th 128.4 99.2 high 129%
West Central (district 87)
Avalon Airport 13.7 −0.2 17.6 6th 4.1 −0.9 −1.1 25th 43.8 37.1 high 118%
Grovedale 13.5 −0.4 17.7 6th 4.0 −1.4 −0.2 25th 57.8 53.2 normal 109%
Laverton RAAF 13.8 +0.2 18.2 14th 4.7 −0.2 −1.1 29th 47.4 39.4 high 120%
Point Wilson 12.2 −0.8 15.5 6th 6.6 −1.2 3.3 29th
Sheoaks 11.9 −0.2 17.0 14th 3.8 −1.3 −1.6 29th 53.0 42.6 normal 124%
North Central (district 88)
Castlemaine Prison 11.1 −0.7 14.3 14th 3.5 +0.8 −2.0 22nd 89.5 60.9 high 147%
Eildon Fire Tower 8.8 −0.3 13.8 14th 3.5 −0.3 0.5 9th 99.6 66.5 very high 150%
Lake Eildon 12.0 +0.2 17.2 14th 3.5 0 −1.6 29th 120.2 94.1 high 128%
Mangalore Airport 12.5 0 16.1 14th 3.3 +0.2 −1.0 25th 68.0 59.5 normal 114%
Maryborough 11.8 −0.4 15.2 14th 3.7 +0.4 −1.0 29th 63.1 55.2 normal 114%
Redesdale 11.0 −0.8 14.2 14th 3.2 +0.2 −0.5 25th 93.6 66.5 high 141%
Western Plains (district 89)
Ararat Prison 11.1 −0.6 14.6 14th 3.6 +0.3 −4.2 29th 64.6 63.2 normal 102%
Ballarat Aerodrome 10.0 0 14.0 14th 2.9 −0.3 −2.4 29th 77.0 66.5 high 116%
Westmere 11.8 15.1 14th 3.6 −3.2 29th 77.8
West Coast (district 90)
Aireys Inlet 13.2 −0.1 17.1 31st 6.1 −1.2 4.0 8th 76.0 67.6 normal 112%
Cape Nelson Lighthouse 13.4 −0.3 16.7 6th 7.7 −0.8 3.9 24th 109.8 89.4 high 123%
Cape Otway Lighthouse 12.7 0 15.3 6th 7.3 −0.3 4.7 30th 108.8 105.9 normal 103%
Casterton 12.5 15.3 31st 3.8 −3.4 29th 70.6
Casterton Showgrounds 13.1 −0.3 15.4 14th 4.2 −0.7 −1.7 24th 81.6 84.9 normal 96%
Colac 11.2 14.3 14th 4.6 0.9 23rd 71.4
Hamilton Airport 11.5 −0.6 15.1 14th 3.8 −0.5 −0.4 28th 100.6 66.2 very high 152%
Mortlake Racecourse 12.6 −0.3 16.5 14th 4.0 −0.5 −2.3 29th 128.0 62.1 very high 206%
Port Fairy AWS 13.8 −0.4 16.6 13th 5.9 −1.2 0.9 29th 147.0 87.8 very high 167%
Portland 12.5 −0.6 15.3 14th 5.1 −1.1 0.6 24th 128.6 105.5 high 122%
Warrnambool Airport Ndb 13.0 −0.6 16.4 15th 4.3 −1.2 −1.7 29th 144.6 75.5 very high 192%
Weeaproinah 8.9 −0.1 13.5 15th 4.2 −0.4 1.6 11th 227.0 225.9 normal 100%

Notes

This statement has been prepared based on information available at 1 pm on Friday 1 August 2008. Some checks have been made on the data, but it is possible that results will change as new information becomes available. Normals are long-term means based on observations from the years 1895 to date, except for Melbourne CBD for which 1961−1990 normals are used. They are not shown for sites with less than 10 years of record in that time, as they cannot then be calculated reliably. The median is sometimes more representative than the mean of "normal" 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, normal in decile 4 to 7, high in decile 8 or 9 and very high is in decile 10). The Fraction of normal shows how much rain has fallen this time as a percentage of the long-term mean.

Further information

Dr Harvey Stern
Climate Meteorologist
Victoria Climate Services Centre
Bureau of Meteorology
Phone (03) 9669 4956
Email climate.vic@bom.gov.au