Thursday, 2 October 2008 - Monthly Climate Summary for Victoria - Product code IDCKGC26R0

Victoria in September 2008
An unusually dry September

September rainfall was well below the long-term (all years of record) normal in all Districts, largely on account of the persistence of high pressure systems over southeastern Australia, and the relatively few periods of frontal or cyclonic activity and also the fact that there has been little moisture associated with those fronts that did affect us.

Daytime temperatures have averaged above the long-term normal in most Districts, whilst overnight temperatures have been mostly below normal in the north, and near normal in the south. The relatively cold nights over inland Victoria have been a consequence of the mostly clear skies, allowing maximum radiational cooling.

In the Melbourne CBD, the average minimum temperature has been 9.7 deg C (1.8 deg C above the long-term average over all years of record), whilst the average maximum temperature has been 19.4 deg C (2.2 deg C above the long-term average). Total September rainfall was 12 mm, well below the long-term average of 57.9 mm. The 12 mm reading represents the lowest September total on record - previous record 13.4 mm in September 1907.

The Melbourne CBD is usually warmer than the suburbs on account of what is known as the "heat island effect", a feature of the inner areas of most major cities.  This effect occurs on account of the ability of the buildings and roads to absorb heat (and then to re-radiate it back into the atmosphere) more effectively than grassland and forest.

This point is effectively illustrated by the fact that, away from the city centre at Melbourne Airport, average temperatures were not as high. The average September 2008 minimum temperature at the Airport was 7.0 deg C (the same as the long-term average), whilst the average September 2008 maximum temperature was 18.4 deg C (1.9 deg C above the long-term average).

An archive of previous monthly summaries for Victoria is also available, as are summaries for other states and many other climate summaries and diagnostics.

Rainfall

The wettest overall was 146.2 mm at Mount Baw Baw. Some sites had their lowest total September rainfall on record. Some sites had their lowest total September rainfall for at least 20 years. The wettest single day 56.4 mm at Falls Creek (Rocky Valley) on the 23rd. There is a map of total rainfall below. There is a map of rainfall deciles below.

Temperature

The hottest day was 34.1°C at Mildura Airport on the 27th, followed by 34.1°C at Swan Hill Aerodrome on the 27th. The warmest days on average were 22.1°C at Mildura Airport. The coolest days on average were 3.8°C at Mount Hotham. The coldest day was −1.4°C at Mount Hotham on the 16th. Some sites had their highest September temperature on record. Some sites had their highest September mean daily maximum temperature on record. There is a map of mean maximum temperatures below. There is a map of maximum temperature anomalies below.

The coldest night was −6.6°C at Dinner Plain (Mount Hotham Airport) on the 9th. The coolest nights on average were −2.0°C at Mount Hotham. The warmest nights on average were 9.9°C at Wilsons Promontory Lighthouse. The warmest night was 16.8°C at Mount Nowa Nowa on the 14th. Some sites had their lowest September mean daily minimum temperature for at least 20 years. There is a map of mean minimum temperatures below. There is a map of minimum temperature anomalies below.

Wind

The strongest wind gust was 128 km/h at Mount Hotham on the 22nd.

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
34.1°C at Mildura Airport on the 27th
34.1°C at Swan Hill Aerodrome on the 27th
Warmest days on average
Highest mean daily maximum temperature
22.1°C at Mildura Airport
Coolest days on average
Lowest mean daily maximum temperature
3.8°C at Mount Hotham
Coldest day
Lowest daily maximum temperature
−1.4°C at Mount Hotham on the 16th
Coldest night
Lowest temperature
−6.6°C at Dinner Plain (Mount Hotham Airport) on the 9th
Coolest nights on average
Lowest mean daily minimum temperature
−2.0°C at Mount Hotham
Warmest nights on average
Highest mean daily minimum temperature
9.9°C at Wilsons Promontory Lighthouse
Warmest night
Highest daily minimum temperature
16.8°C at Mount Nowa Nowa on the 14th
Wettest overall
Highest total rainfall
146.2 mm at Mount Baw Baw
Driest overall
Lowest total rainfall
0 mm at Sandringham RG
0 mm at St Kilda Marina
Wettest day
Highest daily rainfall
56.4 mm at Falls Creek (Rocky Valley) on the 23rd
Highest wind gust
128 km/h at Mount Hotham on the 22nd

Maps

Anomaly in mean maximum temperature

Map of Anomaly in mean maximum temperature

Anomaly in mean minimum temperature

Map of Anomaly in mean minimum temperature

Rainfall deciles

Map of Rainfall deciles


Records

Record lowest total September rainfall
Total rainfall
for September 2008 (mm)
Previous lowest
for September
Years of
record
Normal for
September
Melbourne Regional Office 12 13.4 in 1907 154 57.9
Seymour Shire Depot 3.8 9.6 in 1938 128 56.6
Dookie Agricultural College 3.6 4.9 in 1938 127 50.6
Tungamah 7.0 8.1 in 1972 117 45.6
Leongatha Sth Gippsland Water 22.4 24.4 in 1977 116 95.9
Meredith 25.2 27.4 in 1968 110 68.1
Mansfield (Post Office) 7.8 13.4 in 1938 107 67.1
Avenel (Post Office) 4.0 6.1 in 1938 105 59.2
Marysville (Post Office) 18.8 38.3 in 1961 104 140.0
Bonnie Doon Garage 10.2 12.4 in 1961 102 68.5
Preston Reservoir 12.6 14.3 in 1938 98 59.9
Stanhope 2.2 3.8 in 1938 88 40.7
East Sale Airport 12.0 16.4 in 2007 66 52.0
Essendon Airport 11.0 13.0 in 1938 63 50.9
Mildura Airport 2.2 3.0 in 1957 63 27.0
Moorabbin Airport 24.8 25.0 in 1985 57 65.6
Mangalore Airport 8.2 11.6 in 1996 52 55.2
Eppalock Reservoir 6.4 13.0 in 1982 44 49.2
Castlemaine Prison 15.0 22.6 in 1982 42 60.8
Donald 3.6 8.2 in 1968 42 38.5
Kyneton 19.6 24.0 in 1994 39 76.8
Warracknabeal Museum 8.2 9.8 in 1987 39 41.7
Glen Waverley (Golf Course) 24.8 31.5 in 1981 35 77.7
Cann River 26.0 35.2 in 1981 33 87.1
Bundoora (Latrobe University) 16.2 16.7 in 1981 30 58.3
Strath Creek 13.8 30.8 in 1995 26 66.1
Monbulk (Bulb Farm) 42.2 70.0 in 2006 23 133.5
Edi Upper 27.4 35.4 in 2006 22 105.8
Avoca (Homebush) 12.6 13.0 in 2003 21 49.7

Lowest total September rainfall for at least 20 years
Total rainfall
for September 2008 (mm)
Most recent lower
for September
Years since
lower
Normal for
September
Euroa 6.6 5.9 in 1914 90 60.6
Trentham (Post Office) 33.2 32.0 in 1914 89 107.0
Brighton (Dendy Park Bowling Club) 16.0 14.6 in 1928 76 57.7
Strathbogie 18.0 17.0 in 1936 72 95.7
Heathcote 10.2 7.4 in 1938 70 54.9
Kinglake West (Wallaby Creek) 40.4 26.7 in 1938 70 117.4
Toorourrong Reservoir (Toorourrong) 23.4 14.1 in 1938 70 75.3
Blackwood 34.2 24.9 in 1938 69 102.8
Rushworth 4.7 2.7 in 1938 69 48.4
Yan Yean 21.4 10.0 in 1938 68 61.8
Koroit 30.6 16.5 in 1940 66 79.9
Glenmaggie Weir 14.8 13.6 in 1944 64 51.2
Birchip (Woodlands) 5.0 4.8 in 1951 57 35.5
Clunes 16.4 13.8 in 1951 57 55.9
Echuca Aerodrome 5.0 2.8 in 1951 57 39.2
Kerang 4.8 4.7 in 1951 57 35.5
Redesdale 13.0 8.4 in 1951 56 53.6
Canary Island 5.8 4.2 in 1951 55 33.9
Nagambie (Goulburn Weir) 8.2 5.8 in 1951 53 54.3
Cairn Curran Reservoir 14.2 13.5 in 1961 47 48.2
Eurobin 35.0 32.7 in 1961 47 110.8
Yea Bowling Club 22.8 20.1 in 1961 46 62.8
Elmore 11.4 10.4 in 1968 40 44.2
Navarre 14.8 14.3 in 1967 39 54.4
Warrandyte 21.2 19.1 in 1968 39 75.0
Lindenow 15.6 14.3 in 1968 38 52.3
Tubbut 8.4 7.7 in 1968 38 54.0
Flemington Racecourse 16.6 15.2 in 1968 37 53.9
Lima South (Lake Nillahcootie) 19.2 18.0 in 1972 36 93.0
Skipton Post Office 23.6 21.2 in 1972 36 63.2
Genoa (Fools Haven) 25.0 22.4 in 1973 35 80.9
Club Terrace 31.6 22.8 in 1972 33 91.3
Buchan 37.6 30.8 in 1979 29 71.2
Epping 18.2 16.0 in 1981 27 57.3
Laverton RAAF 15.4 14.4 in 1981 27 49.6
Mitcham 28.6 25.2 in 1981 27 81.0
Rosebud (Country Club) 28.6 25.9 in 1981 27 73.2
Springvale Necropolis 32.5 20.0 in 1981 27 80.5
Warburton (O'Shannassy Reservoir) 71.0 54.6 in 1981 27 149.9
Berriwillock 12.8 3.4 in 1982 26 34.6
Cheltenham Kingston Centre 18.8 15.8 in 1981 26 66.9
Patchewollock 5.0 4.8 in 1982 26 30.8
Rokewood (Wurrook South) 25.6 22.6 in 1981 26 61.3
Woomelang (Post Office) 6.6 4.8 in 1982 26 34.9
Ballan 37.8 25.0 in 1981 25 75.7
Mornington 30.3 27.7 in 1981 25 71.7
Oakleigh (Metropolitan Golf Club) 26.0 22.4 in 1981 25 67.4
Sea Lake (Post Office) 7.8 4.4 in 1982 25 31.5
St Arnaud 12.6 12.0 in 1982 25 49.3
Toora 48.8 42.6 in 1981 25 91.6
Avoca 15.0 9.1 in 1914 24 55.4
Beulah 9.6 8.4 in 1982 23 37.9
Drung Drung 16.4 14.4 in 1985 23 43.8
Lake Eildon 28.4 25.6 in 1985 23 81.7
Ventnor (Oaklands) 32.4 19.2 in 1985 23 70.9
Wonthaggi 48.5 18.0 in 1985 23 89.4
Phillip Island Penguin Reserve 19.3 16.6 in 1985 22 69.1
Rochester 12.8 11.4 in 1985 22 40.7
Harrow (Post Office) 21.1 18.8 in 1987 21 64.8
Jeparit 12.6 8.4 in 1987 21 39.7
Murrayville 4.0 3.6 in 1987 21 32.3
Narraport 10.2 10.0 in 1987 21 35.4
St Arnaud (Coonooer Bridge) 15.0 10.8 in 1987 21 42.9
Winchelsea (Post Office) 25.0 20.2 in 1985 21 57.3
Nelson 51.7 31.8 in 1987 20 74.6



Record highest September temperature
Highest temperature
in September 2008 (°C)
Previous highest
for September
Years of
record
Normal for
September
Mangalore Airport 29.7 on the 27th 29.5 on the 19th in 2006 50 16.7
Kerang 34.0 on the 27th = 34.0 on the 30th in 2001 45 19.1
Tatura Inst Sustainable Ag 31.7 on the 27th 31.2 on the 30th in 1980 44 17.3
Kyabram DPI 32.2 on the 27th 32.1 on the 30th in 2001 42 17.3
Melbourne Airport 29.0 on the 27th = 29.0 on the 19th in 2006 39 16.5
Warracknabeal Museum 32.0 on the 27th 31.7 on the 29th in 1980 36 18.0
Edi Upper 26.5 on the 27th 26.4 on the 19th in 2006 21 16.1
Wangaratta Aero 29.3 on the 27th 28.8 on the 19th in 2006 21 17.4



Record highest September mean daily maximum temperature
Mean daily maximum
temperature
for September 2008 (°C)
Previous highest
for September
Years of
record
Normal for
September
Essendon Airport 19.0 18.8 in 2006 39 16.5



Lowest September mean daily minimum temperature for at least 20 years
Mean daily minimum
temperature
for September 2008 (°C)
Most recent lower
for September
Years since
lower
Normal for
September
Horsham Polkemmet Rd 3.5 1.4 in 1906 91 5.5
Longerenong 3.1 1.3 in 1904 60 5.1
Nhill 3.7 3.7 in 1977 31 5.4



Summaries

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

Summary statistics for September 2008
Maximum temperatures
for September
(°C)
Minimum temperatures
for September
(°C)
Rainfall
for September
(millimetres)
Mean for
September
2008
Diff
from
normal
Highest for
September
2008
Mean for
September
2008
Diff
from
normal
Lowest for
September
2008
Total for
September
2008
Normal
for
September
Rank of
September
2008
Fraction of
September
normal
North Mallee (district 76)
Mildura Airport 22.1 +1.7 34.1 27th 7.1 −0.2 2.2 9th 2.2 27.0 lowest 8%
Ouyen 21.7 +1.6 33.7 27th 6.7 0.0 1.8 9th 11.1 32.1 low 35%
Walpeup Research 21.4 +1.9 33.9 27th 7.1 +0.3 1.5 16th 10.2 31.1 low 33%
South Mallee (district 77)
Hopetoun Airport 21.3   34.0 27th 3.9   −1.8 24th 6.2
Swan Hill Aerodrome 21.5 +1.4 34.1 27th 5.3 −0.9 −0.7 10th 7.8 26.0 very low 30%
North Wimmera (district 78)
Nhill 18.6 +0.7 31.0 27th 3.7 −1.7 −1.5 9th 30.4 43.3 average 70%
Nhill Aerodrome 18.9   31.4 27th 5.2   −0.1 30th 24.6
Warracknabeal Museum 19.9 +1.9 32.0 27th 4.9 −1.0 −0.2 10th 8.2 41.7 lowest 20%
South Wimmera (district 79)
Edenhope Airport 16.9   26.4 27th 5.8   0.2 9th 50.2
Grampians 9.0   19.9 27th 1.7   −2.0 16th 86.8
Horsham Aerodrome 18.6 +0.4 30.2 27th 2.8 −1.8 −2.0 24th 21.4 34.9 very low 61%
Horsham Polkemmet Rd 18.5 +0.9 27.8 26th 3.5 −2.1 −1.5 9th 27.6 46.0 average 60%
Kanagulk 16.6   27.0 27th 4.6   −0.5 9th 32.2
Longerenong 18.6 +1.3 30.3 27th 3.1 −2.1 −2.0 9th 21.8 40.4 average 54%
Pyrenees 12.2   23.0 27th 3.9   −0.1 16th 30.2
Stawell Aerodrome 17.0 +0.4 27.5 27th 5.2 −0.7 −0.5 9th 19.8 54.2 very low 37%
Lower North (district 80)
Charlton 19.3   31.9 27th 5.0   −0.7 10th 15.0
Echuca Aerodrome 20.7 +2.4 33.0 27th 4.7 −1.7 −0.4 17th 5.0 39.2 very low 13%
Kerang 21.4 +2.4 34.0 27th 6.1 −0.6 0.5 10th 4.8 35.5 very low 14%
Kyabram DPI 20.0 +2.6 32.2 27th 4.4 −0.9 −1.0 17th 9.6 43.0 very low 22%
Upper North (district 81)
Bendigo Airport 18.3 +1.6 29.6 27th 3.1 −1.3 −2.0 9th 7.2 48.2 very low 15%
Shepparton Airport 19.8 +1.6 31.8 27th 3.9 −1.6 −1.3 17th 8.4 37.8 very low 22%
Tatura Inst Sustainable Ag 19.4 +2.1 31.7 27th 4.0 −1.4 −2.1 9th 8.6 43.1 very low 20%
Yarrawonga 20.3 +2.0 31.4 27th 4.2 −1.1 −1.0 9th 17.2 45.2 very low 38%
Lower Northeast (district 82)
Benalla Airport 18.9   30.0 27th 3.5   −2.4 17th 10.4
Corryong Airport 18.8   25.9 27th 2.7   −3.4 9th 56.8
Dartmouth Reservoir 18.0 +1.6 26.3 27th 3.7 −0.8 −0.8 11th 49.8 106.4 low 47%
Hunters Hill 13.3 +1.4 21.3 27th 4.8 +0.4 −0.9 9th 66.8 136.0 low 49%
Rutherglen Research 19.0 +1.9 29.8 27th 2.6 −1.7 −3.7 9th 28.8 54.7 low 53%
Strathbogie 15.2 +1.0 25.1 27th 3.0 −0.8 −2.1 30th 18.0 95.7 very low 19%
Wangaratta Aero 19.0 +1.6 29.3 27th 2.9 −1.8 −2.1 9th 17.0 56.7 very low 30%
Upper Northeast (district 83)
Dinner Plain 11.8   19.4 27th 0.4   −6.6 9th 60.0
Edi Upper 17.2 +1.1 26.5 27th 4.4 −1.1 −1.2 10th 27.4 105.8 lowest 26%
Falls Creek 5.3 +0.7 13.1 27th −1.0 −0.1 −6.3 9th 79.6 124.3 low 64%
Mount Buller 5.3 +0.4 14.3 27th −1.0 −0.4 −6.0 17th 77.0 154.1 low 50%
Mount Hotham 3.8 +0.4 11.8 27th −2.0 −0.5 −6.4 16th 94.0 133.1 low 71%
Omeo 15.9   24.2 27th 3.7   −2.1 4th 44.4
Omeo Comparison 16.2 +1.1 24.1 27th 4.0 +1.2 −1.4 4th 46.0 61.3 low 75%
East Gippsland (district 84)
Combienbar AWS 16.9 +1.4 26.3 27th 6.5 +0.2 0.6 9th 44.2 69.9 low 63%
Gabo Island Lighthouse 17.0 +1.1 26.4 14th 9.8 +0.1 6.6 11th 25.4 72.9 very low 35%
Gelantipy 14.7 +1.0 23.0 27th 4.7 +0.4 −2.2 9th 53.8 55.8 average 96%
Lakes Entrance 18.8   28.5 19th 8.2   3.0 1st 28.9
Mallacoota 18.0 +0.7 26.1 14th 7.2 −0.9 2.9 11th 16.4 82.7 very low 20%
Mount Nowa Nowa 17.8 +1.0 26.8 13th 8.2 +0.4 2.7 9th 40.6 57.7 low 70%
Orbost 19.3   28.5 22nd 7.2   3.1 18th 28.8
Orbost 19.8 +2.0 28.2 22nd 6.1 −0.1 1.5 11th 29.8 71.2 very low 42%
Point Hicks 18.3 +1.9 27.1 19th 9.3 −0.2 4.5 17th 28.8 76.2 very low 38%
West Gippsland (district 85)
Bairnsdale Airport 19.6 +2.2 29.0 22nd 5.4 −0.4 −0.2 18th 19.2 54.8 very low 35%
East Sale Airport 19.0 +2.0 26.9 19th 5.2 −0.4 0.1 18th 12.0 52.0 lowest 23%
Morwell 18.4 +1.7 25.9 19th 5.1 −0.7 0.4 18th 47.2 78.0 low 61%
Mount Baw Baw 5.5 −0.2 15.7 27th −0.7 −0.6 −6.1 9th 146.2
Mount Moornapa 17.4 +1.4 26.4 19th 7.4 +0.6 3.2 4th 33.2 54.2 low 61%
Noojee 16.5 +1.2 24.6 27th 5.3 +0.2 0.5 4th 65.6 123.1 very low 53%
Pound Creek 17.1   23.8 26th 7.0   2.6 5th 47.6
Wilsons Promontory Lighthouse 15.8 +1.6 22.9 21st 9.9 +1.0 6.8 16th 72.4 98.4 low 74%
Yarram Airport 18.1   26.3 12th 5.6   0.0 18th 32.6
East Central (district 86)
Bundoora 18.8 +2.0 28.5 27th 7.5 +0.4 1.8 10th 16.2 58.3 lowest 28%
Cerberus 17.5 +1.3 25.7 26th 7.6 +0.2 2.2 4th 31.0 67.9 very low 46%
Coldstream 18.1 +0.9 27.0 27th 5.0 −0.5 −0.7 10th 24.8 68.4 very low 36%
Cranbourne Botanic Gardens 17.5 +1.2 26.2 26th 7.7 +0.1 2.4 4th 38.4 84.1 very low 46%
Essendon Airport 19.0 +2.4 28.2 27th 7.7 +1.2 2.0 10th 11.0 50.9 lowest 22%
Ferny Creek 14.0 +1.4 23.7 27th 6.3 +0.2 1.4 23rd 44.2 84.9 very low 52%
Frankston AWS 16.1 +0.8 23.4 13th 9.6 +0.4 5.1 4th
Melbourne Airport 18.4 +1.9 29.0 27th 7.0 0.0 2.0 10th 15.2 46.0 very low 33%
Melbourne Regional Office 19.4 +2.2 28.2 26th 9.7 +1.8 4.8 17th 12 57.9 lowest 21%
Moorabbin Airport 18.0 +1.2 26.9 26th 8.5 +0.6 2.1 4th 24.8 65.6 lowest 38%
Rhyll 16.6 +0.7 23.2 26th 9.7 +0.5 6.7 16th 37.2 66.1 low 56%
Scoresby Research Institute 18.0 +1.6 25.7 26th 7.9 +0.4 1.1 10th 30.6 83.3 very low 37%
Viewbank 18.7   28.7 27th 7.7   2.1 10th 21.8
Wallan 14.0 +1.0 24.1 27th 5.2 −0.4 0.3 23rd 14.4 52.0 very low 28%
Wonthaggi 17.3 +1.4 24.0 26th 8.1 +0.5 4.1 18th 48.5 89.4 low 54%
West Central (district 87)
Avalon Airport 18.7 +1.2 28.9 26th 6.4 −0.2 0.8 17th 15.8 44.9 very low 35%
Grovedale 17.6 +1.2 27.4 26th 6.4 −0.2 1.8 4th 34.2 48.7 low 70%
Laverton RAAF 18.5 +1.6 28.7 26th 7.4 +0.9 1.3 4th 15.4 49.6 very low 31%
Sheoaks 16.6 +1.4 25.1 26th 6.4 +0.3 −0.3 4th 23.2 47.9 very low 48%
North Central (district 88)
Castlemaine Prison 17.0 +1.4 27.7 27th 4.8 −0.1 −2.8 9th 15.0 60.8 lowest 25%
Eildon Fire Tower 14.5 +1.1 24.3 27th 5.6 −0.2 0.0 9th 14.8 59.9 very low 25%
Lake Eildon 18.3 +1.9 27.6 27th 5.1 −0.5 −1.6 9th 28.4 81.7 very low 35%
Mangalore Airport 18.4 +1.7 29.7 27th 4.4 −1.0 −1.2 23rd 8.2 55.2 lowest 15%
Maryborough 17.7 +1.0 29.0 27th 4.8 −0.5 0.4 9th 25.4 51.4 low 49%
Redesdale 16.9 +0.9 27.4 27th 3.3 −1.0 −1.9 23rd 13.0 53.6 very low 24%
Western Plains (district 89)
Ararat Prison 16.1 +1.1 26.1 27th 4.6 −0.4 −1.6 10th 41.2 62.0 average 66%
Ballarat Aerodrome 15.0 +1.2 24.6 27th 3.6 −1.2 −1.2 10th 29.0 71.5 very low 41%
Westmere 15.9   24.7 27th 4.3   −1.7 4th 34.4
West Coast (district 90)
Aireys Inlet 17.0 +1.1 24.9 26th 8.0 −0.1 4.4 23rd 35.2 58.3 very low 60%
Cape Nelson Lighthouse 16.3 +0.5 23.7 13th 9.1 −0.3 5.5 7th 55.0 76.7 very low 72%
Cape Otway Lighthouse 15.2 0.0 22.8 13th 9.0 +0.6 5.7 10th 61.8 90.2 low 69%
Casterton 16.2   23.2 27th 5.0   −1.7 9th 71.0
Casterton Showgrounds 17.1 +0.8 24.0 27th 5.5 −1.0 −1.8 9th 54.6 73.6 low 74%
Colac 14.8   22.1 26th 6.0   2.4 23rd 29.6
Hamilton Airport 15.3 +0.2 23.9 27th 4.8 −1.0 −0.5 3rd 48.8 70.6 low 69%
Mortlake Racecourse 16.2 +0.7 23.0 27th 5.1 −0.4 −1.7 4th 52.8 56.9 average 93%
Port Fairy AWS 17.1 +0.6 23.8 13th 7.7 −0.5 2.4 4th 53.0 68.2 low 78%
Portland 15.5 +0.4 22.1 13th 6.6 −0.8 0.5 4th 65.8 86.6 low 76%
Warrnambool Airport NDB 16.3 +0.3 22.2 13th 6.2 −0.3 −0.1 4th 51.4 68.4 low 75%
Weeaproinah 12.3 +0.8 19.0 13th 5.4 −0.2 2.3 23rd 138.2 199.9 low 69%

Notes

This statement has been prepared based on information available at 9 am on Thursday 2 October 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 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 ("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