Monday, 1 October 2007 - Monthly Climate Summary for Victoria - Product code IDCKGC16R0

Victoria in September 2007
Dry with warm days and cool nights

Summary

Preliminary Bureau of Meteorology data suggest that September 2007 was dry across Victoria, with warm days and cool nights. Average rainfall was less than half the normal in most Districts. Daytime temperatures were mostly between 1 and 2 degrees above normal, whilst overnight temperatures were mostly about half a degree below normal.

Rainfall

The wettest overall was 228.8 mm at Mt Baw Baw. The driest overall was 3.2 mm at Mildura Airport. The wettest single day 66.6 mm at Mt Baw Baw on the 12th. Some sites had their lowest total September rainfall on record. Some sites had their lowest total September rainfall for at least 20 years.

Temperature

The hottest day was 28.6°C at Mildura Airport on the 13th, followed by 28.6°C at Mildura Airport on the 25th. The warmest days on average were 22.3°C at Mildura Airport. The coolest days on average were 4.1°C at Mt Hotham. The coldest day was −0.9°C at Mt Baw Baw on the 3rd.

The coldest night was −7.7°C at Mt Hotham on the 4th. The coolest nights on average were −1.9°C at Mt Hotham. The warmest nights on average were 10.2°C at Gabo Island Lighthouse. The warmest night was 15.4°C at Mildura Airport on the 26th.

Some sites had their lowest September temperature on record.

Some sites had their lowest September mean daily minimum temperature on record.

Some sites had their lowest September mean daily minimum temperature for at least 20 years.

Wind

The strongest wind gust was 126 km/h at Mt Hotham on the 14th.

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
28.6°C at Mildura Airport on the 13th
28.6°C at Mildura Airport on the 25th
Warmest days on average
Highest mean daily maximum temperature
22.3°C at Mildura Airport
Coolest days on average
Lowest mean daily maximum temperature
4.1°C at Mt Hotham
Coldest day
Lowest daily maximum temperature
−0.9°C at Mt Baw Baw on the 3rd
Coldest night
Lowest temperature
−7.7°C at Mt Hotham on the 4th
Coolest nights on average
Lowest mean daily minimum temperature
−1.9°C at Mt Hotham
Warmest nights on average
Highest mean daily minimum temperature
10.2°C at Gabo Island Lighthouse
Warmest night
Highest daily minimum temperature
15.4°C at Mildura Airport on the 26th
Wettest overall
Highest total rainfall
228.8 mm at Mt Baw Baw
Driest overall
Lowest total rainfall
3.2 mm at Mildura Airport
Wettest day
Highest daily rainfall
66.6 mm at Mt Baw Baw on the 12th
Highest wind gust
126 km/h at Mt Hotham on the 14th

Records

Record lowest total September rainfall
Total rainfall
for September 2007 (mm)
Previous lowest
for September
Years of
record
Normal for
September
Tatura Inst Sustainable Ag 6.2 7.2 in 1968 66 43.7
East Sale Airport 13.8 21.4 in 1999 65 52.6
Kyabram DPI 8.4 9.4 in 1987 44 43.7
Melbourne Airport 5.8 10.6 in 1981 38 46.7
Mallacoota 5.6 25.0 in 1999 30 84.9
Bairnsdale Airport 13.0 22.8 in 2002 28 56.1
Edi Upper 30.4 35.4 in 2006 22 106.0
Wangaratta Aero 12.8 24.8 in 1994 21 58.6
Beechworth Woolshed 23.4 31.0 in 1994 20 78.3

Lowest total September rainfall for at least 20 years
Total rainfall
for September 2007 (mm)
Most recent lower
for September
Years since
lower
Normal for
September
Echuca Aerodrome 7.0 2.8 in 1951 56 39.5
Mildura Airport 3.2 3.0 in 1957 50 27.4
Orbost (Comparison) 29.2 18.0 in 1972 35 71.9
Rutherglen Research 9.4 9.0 in 1972 35 55.0
Melbourne Regional Office 18.6 16.6 in 1981 26 57.6
Point Hicks (Lighthouse) 26.6 23.2 in 1981 26 77.2
Walpeup Research 8.0 7.8 in 1987 20 31.4



Record lowest September temperature
Lowest temperature
in September 2007 (°C)
Previous lowest
for September
Years of
record
Normal for
September
Echuca Aerodrome −1.0 on the 1st = −1.0 on the 26th in 2006 51 6.4
Point Hicks (Lighthouse) 1.5 on the 29th 1.8 on the 16th in 1970 38 9.5
Portland (Cashmore Airport) 0.0 on the 5th 0.5 on the 7th in 1995 26 7.5
Noojee (Slivar) −2.5 on the 5th −1.4 on the 26th in 2006 24 5.1



Record lowest September mean daily minimum temperature
Mean daily minimum
temperature
for September 2007 (°C)
Previous lowest
for September
Years of
record
Normal for
September
Wangaratta Aero 2.1 2.4 in 2006 20 4.9

Lowest September mean daily minimum temperature for at least 20 years
Mean daily minimum
temperature
for September 2007 (°C)
Most recent lower
for September
Years since
lower
Normal for
September
Echuca Aerodrome 3.6 0.2 in 1907 100 6.4
Longerenong 3.7 3.2 in 1969 38 5.2
Point Hicks (Lighthouse) 8.1 7.4 in 1970 33 9.5
Rutherglen Research 1.4 1.2 in 1977 30 4.3



Summaries

In this table, key sites have been highlighted to make them easier to find. This table is very wide and may not fit if printed.

Summary statistics for September 2007
Maximum temperatures
for September
(°C)
Minimum temperatures
for September
(°C)
Rainfall
for September
(millimetres)
Mean for
September
2007
Diff
from
normal
Highest for
September
2007
Mean for
September
2007
Diff
from
normal
Lowest for
September
2007
Total for
September
2007
Normal
for
September
Rank of
September
2007
Fraction of
September
normal
North Mallee (district 76)
Mildura Airport 22.3 +2.0 28.6 25th 7.5 +0.1 0.9 1st 3.2 27.4 very low 12%
Ouyen 21.3 +1.2 27.4 23rd 6.6 −0.1 1.5 1st 14.5 32.3 low 45%
Walpeup Research 21.0 +1.5 28.3 23rd 6.9 0 0.6 1st 8.0 31.4 very low 25%
South Mallee (district 77)
Hopetoun Airport 20.7 28.5 23rd 4.4 −3.0 1st 14.4
Swan Hill Aerodrome 20.7 +0.6 26.7 13th 5.1 −1.1 −1.2 1st 8.2 27.7 very low 30%
North Wimmera (district 78)
Nhill 19.4 +1.6 27.2 23rd 4.3 −1.2 −3.1 4th 18.2 43.5 low 42%
Nhill Aerodrome 19.7 27.2 23rd 5.3 −0.3 4th 13.6
Warracknabeal Museum 19.7 +1.8 26.8 23rd 5.2 −0.7 0.0 4th 15.6 42.5 very low 37%
South Wimmera (district 79)
Edenhope Airport 17.5 24.7 23rd 6.4 0.6 4th 46.4
Grampians 8.9 15.2 23rd 1.7 −1.2 29th 108.2
Horsham Aerodrome 18.7 +0.6 27.0 23rd 3.5 −1.2 −2.0 4th 22.4 36.2 low 62%
Horsham Polkemmet Rd 19.0 +1.5 27.0 23rd 4.2 −1.3 −2.3 4th 21.2 47.0 low 45%
Kanagulk 17.0 24.8 23rd 5.1 −0.4 2nd 31.2
Longerenong 18.8 +1.5 26.8 23rd 3.7 −1.5 −2.0 4th 18.4 40.7 low 45%
Stawell Aerodrome 17.1 +0.5 24.1 23rd 5.2 −0.8 1.1 4th 28.8 57.1 very low 50%
Lower North (district 80)
Charlton 19.5 26.4 23rd 5.0 −1.7 15th 17.6
Echuca Aerodrome 19.5 +1.3 24.4 13th 3.6 −2.8 −1.0 1st 7.0 39.5 very low 18%
Kerang 20.3 +1.2 25.8 13th 5.9 −0.8 0.4 1st 18.2 36.4 low 50%
Kyabram DPI 18.9 +1.6 24.0 13th 4.6 −0.7 −0.7 1st 8.4 43.7 lowest 19%
Upper North (district 81)
Bendigo Airport 17.4 +0.8 22.8 13th 3.7 −0.7 −2.5 1st 21.8 50.8 low 43%
Shepparton Airport 19.1 +1.1 23.1 13th 4.0 −1.6 −1.5 1st 6.4 40.2 very low 16%
Tatura Inst Sustainable Ag 18.7 +1.4 23.4 13th 3.8 −1.7 −1.8 1st 6.2 43.7 lowest 14%
Yarrawonga 19.5 +1.2 24.0 16th 4.0 −1.4 −1.3 18th 5.2 47.2 very low 11%
Lower Northeast (district 82)
Benalla Airport 17.7 20.8 25th 3.0 −2.7 5th 16.4
Corryong Airport 17.7 21.5 24th 1.7 −2.5 5th 24.1
Dartmouth Reservoir 17.2 +0.8 20.5 19th 3.3 −1.3 −1.3 5th 51.4 107.4 low 48%
Hunters Hill 12.3 +0.4 17.6 26th 4.2 −0.3 0.2 4th 50.2 141.3 very low 36%
Rutherglen Research 17.9 +0.8 21.2 13th 1.4 −2.9 −3.5 4th 9.4 55.0 very low 17%
Strathbogie 14.1 −0.1 17.1 13th 2.9 −0.9 −3.6 5th 38.2 96.5 low 40%
Wangaratta Aero 18.1 +0.7 21.2 13th 2.1 −2.8 −2.9 5th 12.8 58.6 lowest 22%
Upper Northeast (district 83)
Dinner Plain 11.3 18.1 26th −0.5 −6.5 5th 52.2
Edi Upper 16.6 +0.5 18.6 26th 5.1 −0.4 1.0 5th 30.4 106.0 lowest 29%
Falls Creek 5.6 +1.0 14.0 26th −1.1 −0.2 −6.6 4th 79.8 127.3 low 63%
Mount Buller 5.4 +0.5 12.6 26th −1.1 −0.5 −6.1 4th 186.2 157.5 high 118%
Mt Hotham 4.1 +0.8 11.8 26th −1.9 −0.4 −7.7 4th 105.8 136.1 normal 78%
Omeo 15.2 21.4 26th 1.9 −4.7 5th 29.6
East Gippsland (district 84)
Combienbar AWS 16.3 +0.8 21.0 19th 5.8 −0.6 1.4 23rd 46.2 71.8 low 64%
Gabo Island Lighthouse 16.3 +0.6 21.4 14th 10.2 +0.5 6.8 23rd 26.2 72.6 low 36%
Gelantipy 13.5 −0.2 17.8 19th 4.1 −0.2 −0.4 1st 32.0 56.0 very low 57%
Lakes Entrance 17.0 20.9 16th 6.4 1.4 23rd 30.4
Mallacoota 17.2 −0.2 23.5 30th 7.9 −0.3 3.0 23rd 5.6 84.9 lowest 7%
Mt Nowa Nowa 16.3 −0.6 21.0 23rd 7.3 −0.6 3.9 4th 29.2 59.2 very low 49%
Orbost 17.5 21.5 13th 6.9 0.6 23rd 30.2
Orbost 18.2 +0.4 22.1 13th 6.2 −0.1 −0.5 23rd 29.2 71.9 very low 41%
Point Hicks 17.1 +0.8 22.4 14th 8.1 −1.4 1.5 29th 26.6 77.2 very low 34%
West Gippsland (district 85)
Bairnsdale Airport 17.4 −0.1 21.2 10th 4.9 −1.0 −0.1 23rd 13.0 56.1 lowest 23%
East Sale Airport 17.5 +0.6 21.3 27th 4.5 −1.1 −0.7 23rd 13.8 52.6 lowest 26%
Morwell 17.1 +0.4 21.3 10th 4.9 −1.0 −1.1 5th 64.2 79.3 normal 81%
Mt Baw Baw 5.4 −0.3 13.0 26th −1.1 −1.2 −5.8 4th 228.8
Mt Moornapa 15.8 −0.2 20.7 13th 6.6 −0.2 2.4 5th 17.0 55.9 very low 30%
Noojee 15.7 +0.4 20.2 18th 4.3 −0.8 −2.5 5th 99.6 125.3 normal 79%
Pound Creek 16.5 20.7 23rd 6.2 0.2 6th 85.0
Wilsons Promontory Lighthouse 14.6 +0.6 20.0 19th 9.8 +0.7 7.5 29th 109.0 96.7 normal 113%
East Central (district 86)
Bundoora 17.8 +1.1 21.1 9th 7.1 −0.1 0.6 5th 31.0 59.8 very low 52%
Cerberus 16.9 +0.8 22.0 23rd 6.8 −0.6 1.7 7th 45.6 70.2 low 65%
Coldstream 17.3 +0.2 20.5 13th 4.5 −1.0 −2.3 5th 34.0 72.0 very low 47%
Cranbourne Botanic Gardens 17.2 +1.0 21.4 23rd 7.5 −0.1 2.0 23rd 52.3 86.6 low 60%
Essendon Airport 18.4 +1.9 21.8 13th 7.1 +0.6 0.4 5th 16.0 51.5 very low 31%
Ferny Creek 13.4 +0.9 17.7 8th 5.9 −0.1 2.2 1st 66.6 87.8 low 76%
Frankston AWS 16.0 +0.7 21.4 13th 9.0 −0.1 4.5 23rd
Melbourne Airport 18.0 +1.6 21.6 16th 6.8 −0.2 0.0 5th 5.8 46.7 lowest 12%
Melbourne Regional Office 18.8 +1.6 22.3 13th 9.3 +0.6 4.6 5th 18.6 53.0 very low 32%
Moorabbin Airport 17.9 +1.1 22.6 23rd 7.5 −0.4 0.0 5th 26.4 66.3 very low 40%
Phillip Island Penguin Reserve 16.3 +0.3 20.9 23rd 7.3 −0.8 0.6 10th 45.6 71.0 low 64%
Rhyll 16.5 +0.7 19.7 23rd 9.4 +0.2 7.1 23rd 47.0 68.2 low 69%
Scoresby Research Institute 17.5 +1.2 20.6 13th 6.7 −0.8 −0.5 5th 29.6 84.2 very low 35%
Viewbank 18.2 21.6 13th 7.1 0.4 5th 18.4
Wallan 13.3 +0.3 16.9 16th 5.4 −0.2 1.8 29th 24.4 54.7 very low 45%
Wonthaggi 17.0 +1.1 21.2 9th 7.1 −0.5 4.0 23rd 89.4 89.8 normal 100%
West Central (district 87)
Avalon Airport 18.4 +0.9 23.9 19th 5.6 −1.1 −1.0 23rd 21.8 46.0 very low 47%
Geelong Airport 17.5 +1.1 23.8 23rd 5.8 −0.9 0.9 5th 27.4 49.5 very low 55%
Laverton RAAF 18.7 +1.8 22.8 18th 6.2 −0.4 −1.1 5th 19.2 50.1 very low 38%
Point Wilson 16.0 +0.1 20.4 13th 8.9 −0.4 6.3 29th
Sheoaks 16.2 +1.0 21.0 13th 5.6 −0.6 −1.8 5th 26.4 49.7 low 53%
North Central (district 88)
Castlemaine Prison 15.9 +0.4 20.6 13th 4.6 −0.3 −0.5 25th 39.4 61.8 normal 64%
Eildon Fire Tower 13.3 −0.2 16.3 23rd 5.1 −0.7 2.1 1st 26.4 63.7 very low 41%
Lake Eildon 17.0 +0.6 20.2 13th 4.9 −0.7 0.3 1st 42.3 81.6 low 52%
Mangalore Airport 17.9 +1.1 21.8 13th 3.1 −2.3 −2.4 23rd 13.0 56.1 very low 23%
Maryborough 17.2 +0.6 22.8 23rd 4.4 −1.0 −0.3 1st 28.9 52.5 normal 55%
Redesdale 16.3 +0.3 20.6 13th 3.2 −1.2 −2.0 5th 28.8 54.0 low 53%
Western Plains (district 89)
Ararat Prison 16.1 +1.2 22.6 23rd 4.0 −1.1 −2.3 5th 30.4 62.5 low 49%
Ballarat Aerodrome 14.5 +0.6 19.1 13th 4.0 −0.8 −0.9 1st 44.0 72.0 low 61%
Westmere 16.1 21.7 23rd 3.4 −2.0 5th 26.0
West Coast (district 90)
Aireys Inlet 16.8 +0.9 23.3 23rd 7.7 −0.3 4.1 5th 42.0 59.9 very low 70%
Cape Nelson Lighthouse 16.4 +0.7 23.5 23rd 9.6 +0.2 4.9 5th 70.0 78.5 normal 89%
Cape Otway Lighthouse 15.9 +1.2 21.8 23rd 9.1 +0.5 6.5 22nd 87.4 89.1 normal 98%
Casterton 16.5 23.0 23rd 6.2 0.4 25th 69.4
Casterton Showgrounds 17.2 +0.9 24.2 23rd 6.4 0 0.7 5th 66.0 73.9 normal 89%
Colac 14.5 19.7 23rd 6.0 2.1 2nd 43.4
Hamilton Airport 15.9 +0.8 23.1 23rd 5.3 −0.5 1.0 4th 50.8 71.5 low 71%
Mortlake Racecourse 16.1 +0.5 21.9 23rd 4.6 −0.9 −0.6 5th 48.0 57.2 low 84%
Port Fairy AWS 17.4 +1.0 23.7 23rd 7.9 −0.3 3.4 5th 78.2 69.3 normal 113%
Portland 16.0 +0.9 21.9 23rd 7.0 −0.5 0.0 5th 91.6 87.4 normal 105%
Warrnambool Airport Ndb 16.2 22.1 23rd 6.2 1.6 22nd 81.4
Weeaproinah 12.3 +0.8 17.1 13th 5.7 +0.2 2.5 4th 218.6 200.5 normal 109%

Notes

This statement has been prepared based on information available at 8 am on Monday 1 October 2007. 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 2100. 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