Victoria in September 2013: The Hottest September on Record

September 2013 in Victoria was characterised by:

  • The warmest September average minimum temperature on record
  • The second warmest September average maximum temperature on record
  • Mostly close to normal rainfall

Temperature

The warmest station on average (a combination of the maximum and minimum temperatures) was Mildura Airport in the States northwest with 17.8 C whilst the coolest was Mount Hotham in the Alpine region with 2.8 C. The preliminary area average anomaly is 2.38 C, making September 2013 the warmest September (considering both maximum and minimum temperatures) in 104 years of record. The previous warmest September was September 2001 when the area averaged anomaly was 1.94 C.

Maximum temperature

Large parts of the Mallee, Northern Country, Central and South West districts have all recorded maximum temperatures very much above average (in the warmest 10% of their September records) for September. Daytime temperatures across the rest of the State have been above average.  Many stations had their highest September mean daily maximum temperature on record. The hottest day was the 9th when Mildura Airport recorded 33.1 C and Mildura Airport also recorded the warmest days on average with 25.5 C. The coldest day was the 11th when Mount Hotham recorded -0.9 C and Mount Hotham also recorded the coolest days on average with 5.3 C. Stawell Aerodrome had their coldest September day (lowest maximum temperature) on record. The area averaged anomaly currently stands at 2.47 C, making September 2013 the second warmest September (with regard to maximum temperatures) in 104 years of record. The last time we had a warmer September was 1944 when the area averaged anomaly was 2.94 C. Mount Moornapa had their highest September temperature on record. There is a map of maximum temperature anomalies below.

Minimum temperature

Many stations have observed their warmest September average minimum temperatures on record. The unusual warmth has been recorded across the state but especially in the South West district. Many stations that aren't setting new records have still observed minimum temperatures very much above average for this time of year (in the warmest 10% of their September records). The coldest night was the 13th when Mount Hotham recorded -8.1 C and Mount Hotham also recorded the coolest nights on average with 0.2 C. The warmest night was the 5th when Melbourne Regional Office recorded 19.7 C but Point Hicks (Lighthouse) and Wilsons Promontory Lighthouse shared the warmest nights on average with 11.3 C. Many stations had their highest September mean daily minimum temperature on record. A couple of stations had their lowest September temperature on record and a couple more their warmest September night (highest daily minimum temperature) on record. The area averaged anomaly is 2.21 C, making September 2013 the warmest September (with regard to minimum temperatures) in 104 years of record. The previous warmest September was September 2001 when the area averaged anomaly was 1.72 C. There is a map of minimum temperature anomalies below.

Rainfall

Preliminary rainfall data indicates that totals have mostly been close to normal for the September. The wettest station overall was Poowong East (Upper Lang Lang RG) with 260.8 mm and Poowong East (Upper Lang Lang RG) recorded the wettest single day on the 19th with 108.8 mm. Some sites had their highest September daily rainfall on record whilst others their lowest total September rainfall on record. There is a map of rainfall deciles below.

Wind

The strongest wind gust was at Wilsons Promontory Lighthouse with 165 km/h on the 26th, followed by Mount Buller with 133 km/h on the 26th, followed by Wilsons Promontory Lighthouse with 122 km/h on the 28th.

Further information

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Extremes in September 2013
Hottest day 33.1 C at Mildura Airport on the 9th
Warmest days on average 25.5 C at Mildura Airport
Coolest days on average 5.3 C at Mount Hotham
Coldest day -0.9 C at Mount Hotham on the 11th
Coldest night -8.1 C at Mount Hotham on the 13th
Coolest nights on average 0.2 C at Mount Hotham
Warmest nights on average 11.3 C at Point Hicks (Lighthouse)
11.3 C at Wilsons Promontory Lighthouse
Warmest night 19.7 C at Melbourne Regional Office on the 5th
Warmest on average overall 17.8 C at Mildura Airport
Coolest on average overall 2.8 C at Mount Hotham
Wettest overall 260.8 mm at Poowong East (Upper Lang Lang RG)
Wettest day 108.8 mm at Poowong East (Upper Lang Lang RG) on the 19th
Highest wind gust 165 km/h at Wilsons Promontory Lighthouse on the 26th

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


Record highest September daily rainfall
Highest daily rainfall
in September 2013 (mm)
Previous wettest
for September
Years of
record
Apollo Bay 52.2 on the 19th 46.5 on the 15th in 1919 113
Ventnor (Oaklands) 45.8 on the 19th 34.5 on the 23rd in 1916 97
Phillip Island Penguin Reserve 37.8 on the 19th 32.6 on the 9th in 1983 32
Rhyll 55.6 on the 19th 21.8 on the 11th in 2004 20
Mount Nowa Nowa 39.6 on the 18th 36.0 on the 26th in 2000 18
Bullumwaal 28.4 on the 18th 26.6 on the 23rd in 2008 13
Elmore (Campaspe River @ Campaspe Weir H 28.0 on the 17th 22.4 on the 4th in 2010 13
Fifteen Mile Ck at Greta South 42.8 on the 17th 40.6 on the 4th in 2010 13
Fiskville 23.8 on the 17th 22.8 on the 22nd in 2009 13
Gapsted (Ovens River at Rocky Point) 38.0 on the 17th 37.2 on the 17th in 2002 13
Home Ck @ Yarck 35.8 on the 17th 27.8 on the 26th in 2009 13
Hurdle Ck at Bobinawarrah 40.0 on the 17th 36.0 on the 29th in 2005 13
Lima South (Broken River at Moorngag) 55.6 on the 17th 44.0 on the 5th in 2010 13
Myrrhee (Boggy Ck at Angleside) 47.8 on the 17th 37.0 on the 4th in 2010 13
Runnymeade (Mount Pleasant Ck @ Runnymed 58.2 on the 17th 21.4 on the 8th in 2004 13
Sunday Creek @ Tallarook 45.2 on the 17th 36.6 on the 29th in 2011 13
Traralgon Ck at Traralgon South 41.2 on the 26th 33.8 on the 30th in 2011 13
Bacchus Marsh (Lerderderg River @ U/S Go 25.8 on the 17th 22.6 on the 22nd in 2009 12
Barwon Downs (Gerangamete) 24.6 on the 17th 22.2 on the 5th in 2010 12
Broadford (Kilmore North) 42.5 on the 17th 29.0 on the 4th in 2010 12
Cowarr Weir (Thomson River @ U/S Cowwar 33.4 on the 17th 27.6 on the 29th in 2011 12
Genoa River at The Gorge 32.6 on the 18th 32.4 on the 5th in 2004 12
Seymour (Whiteheads Creek @ Whiteheads C 41.0 on the 17th 35.2 on the 29th in 2011 12
Toolern Vale 32.8 on the 17th 31.8 on the 29th in 2011 12
Camperdown 29.0 on the 17th 14.6 on the 16th in 2008 11
Parwan Ck @ Parwan 26.2 on the 17th 25.4 on the 22nd in 2009 11
Reeves Knob 28.4 on the 17th 26.4 on the 26th in 2009 11
Arthurs Seat State Park 28.2 on the 17th 27.0 on the 10th in 2005 10
Bunyip River @ Koo Wee Rup 34.8 on the 26th 30.0 on the 29th in 2011 10
Goulburn River @ Seymour 51.0 on the 17th 30.6 on the 4th in 2010 10
Greta West 43.6 on the 17th 28.8 on the 18th in 2009 10
Kororoit Creek @ Brooklyn 27.6 on the 17th 22.8 on the 22nd in 2009 10
Kororoit Creek @ Deer Park 30.4 on the 17th 28.6 on the 29th in 2011 10
Kororoit Creek @ Diggers Rest 30.4 on the 17th 25.8 on the 29th in 2011 10
Poley Range 59.2 on the 19th 50.6 on the 11th in 2007 10
Poowong East (Upper Lang Lang RG) 108.8 on the 19th 39.0 on the 29th in 2011 10
Sunshine North 31.4 on the 17th 20.4 on the 29th in 2005 10



Record highest total September rainfall
Total rainfall
for September 2013 (mm)
Previous wettest
for September
Years of
record
Average for
September
Barwon River @ Inverleigh 49.0 47.6 in 2010 13 37.4
Bullumwaal 91.0 81.8 in 2009 13 47.4
Elmore (Campaspe River @ Campaspe Weir H 40.0 38.8 in 2010 13 23.1
Runnymeade (Mount Pleasant Ck @ Runnymed 64.2 42.6 in 2004 13 22.6
Sunday Creek @ Tallarook 69.8 67.2 in 2010 13 35.1
Bacchus Marsh (Lerderderg River @ U/S Go 58.6 51.2 in 2012 12 31.3
Barwon Downs (Gerangamete) 82.4 75.2 in 2010 12 56.3
Cowarr Weir (Thomson River @ U/S Cowwar 78.8 78.6 in 2009 12 58.5
Camperdown 104.9 98.3 in 2003 11 74.9
Parwan Ck @ Parwan 63.2 44.4 in 2012 11 28.9
Strathbogie (Mount Wombat) 137.0 104.6 in 2004 11 63.0
Cranbourne (MW) 134.2 96.8 in 2009 10 63.6
Darebin Creek @ Epping 77.2 75.4 in 2009 10 39.5
Kororoit Creek @ Brooklyn 78.4 68.4 in 2009 10 43.2
Kororoit Creek @ Deer Park 72.0 62.6 in 2009 10 41.1
Kororoit Creek @ Diggers Rest 68.4 63.8 in 2009 10 40.3
Lang Lang River @ Lang Lang (Head Road) 113.8 111.0 in 2009 10 78.7
Maribyrnong River @ Keilor 73.4 56.8 in 2009 10 37.8
Merri Ck @ Cooper Street Somerton 40.0 36.0 in 2011 10 17.7
Mile Creek @ Springvale West 87.0 83.2 in 2011 10 47.3
Moonee Ponds Creek @ Jacana Retarding Ba 67.2 65.2 in 2011 10 39.9
Plenty River @ Mernda 81.8 77.8 in 2004 10 51.8
Poley Range 197.6 133.8 in 2012 10 108.6
Poowong East (Upper Lang Lang RG) 260.8 163.8 in 2007 10 134.7
Skye Road Retarding Basin @ Frankston No 91.0 89.2 in 2009 10 49.2
Stony Creek @ Spotswood 83.6 69.4 in 2009 10 46.2
Sunshine North 82.6 63.6 in 2009 10 38.6



Record highest September temperature
Highest temperature
in September 2013 (C)
Previous warmest
for September
Years of
record
Average for
September
Mount Moornapa 29.1 on the 30th 28.9 on the 12th in 2009 20 16.1



Record lowest September daily maximum temperature
Lowest daily maximum
temperature
in September 2013 (C)
Previous coolest
for September
Years of
record
Average for
September
Stawell Aerodrome 9.6 on the 13th 9.8 on the 11th in 2004 18 16.6



Record highest September mean daily maximum temperature
Mean daily maximum
temperature
for September 2013 (C)
Previous warmest
for September
Years of
record
Average for
September
Melbourne Regional Office 20.1 19.7 in 2006 158 17.2
Ouyen (Post Office) 24.5 22.7 in 2006 76 20.2
Mildura Airport 25.5 22.9 in 2006 67 20.4
Walpeup Research 24.2 22.2 in 2006 63 19.6
Scoresby Research Institute 19.1 18.7 in 2001 56 16.4
Ararat Prison 17.7 17.2 in 2006 44 15.1
Wonthaggi 18.0 = 18.0 in 2001 44 16.1
Essendon Airport 19.2 19.0 in 2008 43 16.7
Melbourne Airport 19.1 19.0 in 1972 43 16.6
Moorabbin Airport 19.1 18.8 in 1972 42 16.8
Portland (Cashmore Airport) 17.3 17.1 in 2001 31 15.1
Bundoora (Latrobe University) 20.0 19.0 in 2006 30 16.9
Hamilton Airport 17.3 = 17.3 in 1999 30 15.2
Morwell (Latrobe Valley Airport) 18.7 = 18.7 in 2006 29 16.9
Mount Buller 7.4 = 7.4 in 2006 27 4.8
Mount Hotham 5.3 = 5.3 in 2006 22 3.4
Aireys Inlet 17.6 17.4 in 2001 21 16.1
Cerberus 18.2 18.0 in 2001 21 16.3
Mortlake Racecourse 17.5 17.2 in 2001 21 15.6
Port Fairy AWS 18.3 = 18.3 in 1999 21 16.5
Sheoaks 17.3 17.1 in 2006 21 15.4
Gelantipy 15.7 15.3 in 2000 20 13.8
Mallacoota 19.2 19.1 in 2001 20 17.4
Combienbar AWS 17.4 17.1 in 2009 19 15.7
Mount Moornapa 18.3 17.7 in 1999 19 16.1
Wallan (Kilmore Gap) 15.1 14.6 in 2006 19 13.1
Avalon Airport 19.2 = 19.2 in 2002 18 17.6
Coldstream 19.1 18.6 in 2006 18 17.1
Mount Nowa Nowa 18.3 18.0 in 2006 17 17.0
Swan Hill Aerodrome 22.9 21.9 in 2006 16 20.2
Mount Baw Baw 7.8 7.6 in 1999 15 5.5
Warrnambool Airport NDB 17.7 17.3 in 2001 14 16.0
Viewbank 19.5 19.0 in 2006 13 17.7
Orbost 19.9 19.5 in 2002 12 18.2



Record highest September daily minimum temperature
Highest daily minimum
temperature
in September 2013 (C)
Previous warmest
for September
Years of
record
Average for
September
Mount Hotham 6.7 on the 3rd = 6.7 on the 30th in 2001 23 -1.7
Mount Baw Baw 8.7 on the 4th 8.0 on the 10th in 2005 16 -0.3



Record lowest September temperature
Lowest temperature
in September 2013 (C)
Previous coolest
for September
Years of
record
Average for
September
Gelantipy -2.3 on the 13th -2.2 on the 9th in 2008 21 4.3
Orbost 0.4 on the 13th 0.6 on the 23rd in 2007 13 7.5



Record highest September mean daily minimum temperature
Mean daily minimum
temperature
for September 2013 (C)
Previous warmest
for September
Years of
record
Average for
September
Melbourne Regional Office 11.2 10.7 in 2001 158 8.0
Wilsons Promontory Lighthouse 11.3 10.9 in 2001 134 9.0
Maryborough 7.2 7.1 in 1975 105 5.4
Ouyen (Post Office) 9.4 8.9 in 2001 76 6.7
Laverton RAAF 9.1 8.6 in 1980 69 6.6
East Sale Airport 7.9 7.4 in 1993 68 5.6
Mildura Airport 10.1 9.6 in 1975 67 7.3
Walpeup Research 9.6 8.7 in 1981 63 6.9
Ararat Prison 6.9 6.8 in 2001 44 5.1
Castlemaine Prison 7.4 6.8 in 1999 44 4.9
Wonthaggi 9.8 9.0 in 2001 44 7.7
Essendon Airport 9.4 8.2 in 2009 43 6.6
Lake Eildon 8.2 7.2 in 1999 43 5.6
Melbourne Airport 9.1 8.4 in 1999 43 7.0
Point Hicks (Lighthouse) 11.3 11.1 in 1998 43 9.5
Warracknabeal Museum 7.6 = 7.6 in 1981 40 5.9
Strathbogie 6.0 5.9 in 2001 35 3.7
Bairnsdale Airport 7.5 6.7 in 2004 32 5.8
Portland (Cashmore Airport) 9.5 8.4 in 2001 31 7.4
Bundoora (Latrobe University) 8.8 8.7 in 1981 30 7.2
Hamilton Airport 7.7 7.2 in 1998 30 5.8
Morwell (Latrobe Valley Airport) 7.7 7.3 in 1993 29 5.9
Phillip Island Penguin Reserve 10.0 9.8 in 1987 25 8.3
Wangaratta Aero 6.4 = 6.4 in 2000 25 4.6
Cranbourne Botanic Gardens 9.3 8.8 in 1998 22 7.7
Aireys Inlet 9.4 9.3 in 2001 21 8.1
Bendigo Airport 6.5 6.1 in 2001 21 4.3
Cerberus 9.7 8.7 in 2000 21 7.5
Frankston AWS 10.9 10.6 in 2001 21 9.3
Mortlake Racecourse 7.6 6.8 in 1998 21 5.6
Port Fairy AWS 9.7 9.3 in 2001 21 8.2
Rhyll 11.1 10.7 in 2001 21 9.3
Sheoaks 7.9 7.0 in 2000 21 6.2
Gelantipy 6.5 5.6 in 2001 20 4.3
Hunters Hill 6.3 5.9 in 2006 20 4.4
Redesdale 5.9 5.8 in 1999 20 4.2
Combienbar AWS 8.5 8.3 in 2001 19 6.4
Mount Moornapa 8.6 8.5 in 2001 19 6.8
Wallan (Kilmore Gap) 7.7 7.1 in 1999 19 5.5
Avalon Airport 8.3 7.7 in 1999 18 6.6
Cape Nelson Lighthouse 10.9 10.5 in 2001 17 9.4
Eildon Fire Tower 7.5 7.4 in 1999 17 5.7
Mount Nowa Nowa 9.5 9.1 in 2001 17 7.8
Shepparton Airport 7.2 6.9 in 2001 17 5.3
Stawell Aerodrome 7.8 7.1 in 2001 17 6.0
Swan Hill Aerodrome 8.0 7.9 in 2001 16 5.9
Horsham Aerodrome 6.4 = 6.4 in 2001 15 4.4
Warrnambool Airport NDB 8.4 7.6 in 2001 14 6.7
Colac (Mount Gellibrand) 8.1 7.9 in 2001 13 6.3
Dinner Plain (Mount Hotham Airport) 2.6 1.9 in 2001 13 0.6
Viewbank 9.3 8.5 in 2000 13 7.7
Orbost 9.2 8.7 in 2001 12 7.5
Nhill Aerodrome 8.1 6.1 in 2012 10 5.7


Summary statistics for September 2013
Maximum temperatures
for September
(C)
Minimum temperatures
for September
(C)
Rainfall
for September
(millimetres)
Mean for
September
2013
Diff
from
average
Highest for
September
2013
Mean for
September
2013
Diff
from
average
Lowest for
September
2013
Total for
September
2013
Average
for
September
Rank of
September
2013
Fraction of
September
average
North Mallee (district 76)
Mildura Airport 25.5 +5.1 33.1 9th 10.1 +2.8 4.9 12th 19.4 26.8 average 72%
Ouyen (Post Office) 24.5 +4.3 32.5 9th 9.4 +2.7 3.9 19th 22.0 32.3 average 68%
Walpeup Research 24.2 +4.6 32.7 9th 9.6 +2.7 4.1 19th 22.0 31.1 average 71%
South Mallee (district 77)
Hopetoun Airport 22.7 32.3 9th 6.8 0.1 12th 30.4 23.9 high 127%
Swan Hill Aerodrome 22.9 +2.7 31.1 9th 8.0 +2.1 1.6 27th 46.0 26.8 high 172%
North Wimmera (district 78)
Nhill Aerodrome 19.6 +1.1 27.8 9th 8.1 +2.4 3.2 12th 42.0 28.5 high 147%
Warracknabeal Museum 20.3 +2.2 28.5 9th 7.6 +1.7 2.5 27th 48.0 41.4 average 116%
South Wimmera (district 79)
Edenhope Airport 18.6 25.6 3rd 8.8 4.1 12th 60.2
Grampians (Mount William) 10.9 19.3 3rd 4.4 -0.1 13th 105.0
Horsham Aerodrome 18.9 +0.9 26.0 4th 6.4 +2.0 0.8 12th 71.2 38.9 high 183%
Kanagulk 17.9 25.8 1st 7.8 3.1 12th 41.2 36.3 average 113%
Longerenong 18.9 +1.6 25.9 4th 6.6 +1.5 0.1 12th 61.2 40.6 high 151%
Pyrenees (Ben Nevis) 13.8 21.6 3rd 6.1 1.6 13th 61.0
Stawell Aerodrome 17.7 +1.1 24.2 4th 7.8 +1.8 2.3 21st 41.8 52.0 average 80%
Lower North (district 80)
Charlton 20.3 28.8 9th 7.3 0.8 12th 47.8 35.1 high 136%
Echuca Aerodrome 20.9 +2.6 29.3 9th 7.7 +1.4 1.8 27th 39.8 39.0 average 102%
Kerang 22.3 +3.2 30.6 9th 8.7 +2.0 3.4 12th 47.8 35.6 high 134%
Kyabram 19.9 +2.4 27.6 30th 7.7 +2.5 1.7 27th 47.4 42.6 average 111%
Upper North (district 81)
Bendigo Airport 18.8 +2.0 25.1 23rd 6.5 +2.2 0.4 21st 60.2 50.6 average 119%
Shepparton Airport 19.3 +1.1 26.2 9th 7.2 +1.9 0.7 12th 28.0 37.7 average 74%
Tatura Inst Sustainable Ag 19.3 +1.9 25.8 30th 7.3 +1.9 0.6 27th 21.2 43.1 low 49%
Yarrawonga 20.2 +1.7 26.8 30th 7.0 +1.9 0.3 27th 33.0 41.7 average 79%
Lower Northeast (district 82)
Benalla Airport 18.9 23.9 2nd 6.8 -0.1 13th 40.7
Corryong Airport 19.0 25.2 30th 5.2 -1.7 13th 65.9
Dartmouth Reservoir 18.8 +2.3 24.0 30th 5.9 +1.4 0.4 13th 63.2 104.1 low 61%
Hunters Hill 13.9 +1.8 20.2 2nd 6.3 +1.9 -1.2 13th 83.8 121.8 average 69%
Rutherglen Research 19.1 +1.9 24.8 3rd 5.3 +1.1 -1.1 12th 48.4 54.2 average 89%
Strathbogie 15.8 +1.6 22.6 3rd 6.0 +2.3 -1.8 27th 81.6 95.6 average 85%
Wangaratta Aero 19.3 +1.8 26.3 30th 6.4 +1.8 -0.1 13th 48.2 54.8 average 88%
Upper Northeast (district 83)
Dinner Plain (Mount Hotham Airport) 12.9 +1.7 19.1 23rd 2.6 +2.0 -6.9 13th 74.4 83.6 low 89%
Falls Creek 7.0 +2.3 13.7 3rd 1.2 +2.1 -6.6 13th 60.0 124.9 low 48%
Mount Buller 7.4 +2.6 13.6 3rd 1.2 +2.0 -4.6 13th 147.4 149.4 average 99%
Mount Hotham 5.3 +1.9 13.6 3rd 0.2 +1.9 -8.1 13th 127.2 134.9 average 94%
Omeo 17.0 22.5 2nd 4.5 -6.4 13th 54.2 54.6 average 99%
East Gippsland (district 84)
Combienbar AWS 17.4 +1.7 24.1 25th 8.5 +2.1 1.3 13th 105.6 68.4 high 154%
Gabo Island Lighthouse 18.5 +2.6 27.7 25th 11.1 +1.4 6.2 13th 90.6 72.0 high 126%
Gelantipy 15.7 +1.9 22.0 30th 6.5 +2.2 -2.3 13th 53.4 55.3 average 97%
Lakes Entrance (Eastern Beach Road) 19.2 28.2 30th 9.5 3.0 13th 83.2
Mallacoota 19.2 +1.8 27.3 25th 9.6 +1.5 2.3 13th 80.2 79.1 average 101%
Mount Nowa Nowa 18.3 +1.3 26.8 4th 9.5 +1.7 2.0 13th 82.0 57.5 high 143%
Orbost 19.9 +1.7 28.8 30th 9.2 +1.7 0.4 13th 54.4 52.4 average 104%
Point Hicks (Lighthouse) 18.4 +1.9 25.8 25th 11.3 +1.8 4.0 13th 68.0 74.8 average 91%
West Gippsland (district 85)
Bairnsdale Airport 19.6 +2.0 28.0 30th 7.5 +1.7 -0.1 13th 62.2 53.0 high 117%
East Sale Airport 18.6 +1.6 26.1 30th 7.9 +2.3 0.2 13th 56.2 51.6 high 109%
Morwell (Latrobe Valley Airport) 18.7 +1.8 25.4 30th 7.7 +1.8 1.3 13th 65.2 77.1 average 85%
Mount Baw Baw 7.8 +2.3 15.3 3rd 1.2 +1.5 -5.6 13th 130.0 149.0 average 87%
Mount Moornapa 18.3 +2.2 29.1 30th 8.6 +1.8 0.4 13th 62.8 52.7 high 119%
Pound Creek 18.0 25.1 4th 9.2 2.7 13th 107.0
Wilsons Promontory Lighthouse 16.1 +1.9 23.9 4th 11.3 +2.3 8.1 12th 105.2 99.1 average 106%
Yarram Airport 18.1 26.5 30th 8.3 0.3 13th 79.6
East Central (district 86)
Bundoora (Latrobe University) 20.0 +3.1 26.0 3rd 8.8 +1.6 0.5 13th 66.0 58.9 average 112%
Cerberus 18.2 +1.9 25.7 4th 9.7 +2.2 3.7 8th 96.4 67.7 high 142%
Coldstream 19.1 +2.0 24.7 3rd 6.9 +1.4 -1.5 13th 75.0 71.1 average 105%
Coldstream Comparison 19.1 24.6 30th 6.8 -1.6 13th 72.8
Cranbourne Botanic Gardens 18.3 +1.9 24.0 23rd 9.3 +1.6 2.5 13th 138.2 87.4 high 158%
Essendon Airport 19.2 +2.5 24.4 3rd 9.4 +2.8 0.1 13th 74.4 51.1 high 146%
Ferny Creek 15.4 21.9 3rd 8.2 2.5 13th 110.4
Frankston AWS 17.4 +2.0 24.2 23rd 10.9 +1.6 5.3 13th
Melbourne Airport 19.1 +2.5 24.6 3rd 9.1 +2.1 -0.4 13th 68.6 47.0 high 146%
Melbourne Regional Office 20.1 +2.9 24.8 25th 11.2 +3.2 3.9 13th 83.8 58.1 high 144%
Moorabbin Airport 19.1 +2.3 25.6 4th 9.6 +1.6 1.5 13th 69.0 65.6 average 105%
Phillip Island Penguin Reserve 23.6 4th 10.0 +1.7 5.5 13th 107.2 70.6 high 152%
Rhyll 17.8 +1.9 22.4 4th 11.1 +1.8 7.3 12th 104.0 68.8 high 151%
Scoresby Research Institute 19.1 +2.7 25.0 3rd 9.2 +1.7 -0.3 13th 80.0 84.0 average 95%
Viewbank 19.5 +1.8 25.2 4th 9.3 +1.6 0.9 13th 76.0 56.2 high 135%
Wallan (Kilmore Gap) 15.1 +2.0 20.6 3rd 7.7 +2.2 2.1 13th 77.4 58.5 average 132%
Wonthaggi 18.0 +1.9 25.0 4th 9.8 +2.1 3.5 13th 122.9 89.6 high 137%
West Central (district 87)
Avalon Airport 19.2 +1.6 25.5 4th 8.3 +1.7 0.4 13th 53.0 46.4 average 114%
Breakwater (Geelong Racecourse) 18.8 25.1 1st 9.0 3.4 13th 55.4
Laverton RAAF 19.0 +2.0 23.9 4th 9.1 +2.5 -0.7 13th 65.0 49.4 high 132%
Sheoaks 17.3 +1.9 22.9 30th 7.9 +1.7 -0.8 13th 47.4 49.1 average 97%
North Central (district 88)
Castlemaine Prison 17.5 +1.9 24.0 3rd 7.4 +2.5 1.0 12th 68.0 60.9 average 112%
Eildon Fire Tower 15.2 +1.7 21.7 30th 7.5 +1.8 1.9 13th 74.8 64.1 average 117%
Lake Eildon 18.3 +1.8 24.6 2nd 8.2 +2.6 2.0 27th 102.2 82.3 high 124%
Mangalore Airport 18.3 +1.5 24.3 30th 6.8 +1.5 -0.9 13th 61.4 55.2 average 111%
Maryborough 18.3 +1.6 24.4 3rd 7.2 +1.8 1.3 21st 58.0 51.8 average 112%
Redesdale 17.6 +1.5 23.4 3rd 5.9 +1.7 -0.2 27th 83.8 54.0 high 155%
Western Plains (district 89)
Ararat Prison 17.7 +2.6 24.6 3rd 6.9 +1.8 -0.4 21st 41.8 60.7 average 69%
Ballarat Aerodrome 16.0 +2.1 22.2 3rd 5.9 +1.1 -0.6 21st 60.2 71.5 average 84%
Westmere 16.7 23.4 3rd 6.1 0.4 21st 47.6
West Coast (district 90)
Aireys Inlet 17.6 +1.5 23.6 4th 9.4 +1.3 4.9 13th 63.4 57.8 average 110%
Cape Nelson Lighthouse 17.5 +1.7 26.1 1st 10.9 +1.5 7.0 28th 86.8 75.7 average 115%
Cape Otway Lighthouse 17.0 +1.8 24.6 1st 10.5 +2.0 6.4 8th 114.8 90.3 high 127%
Casterton 17.8 25.0 1st 8.2 2.8 8th 66.2
Colac (Mount Gellibrand) 15.9 +1.5 21.7 4th 8.1 +1.8 2.5 13th 69.2 50.9 high 136%
Dartmoor 18.1 26.4 3rd 8.5 4.2 21st 70.0
Hamilton Airport 17.3 +2.1 24.3 3rd 7.7 +1.9 3.0 12th 45.0 67.7 low 66%
Mortlake Racecourse 17.5 +1.9 24.5 3rd 7.6 +2.0 2.6 8th 60.6 57.4 average 106%
Port Fairy AWS 18.3 +1.8 25.6 1st 9.7 +1.5 5.2 8th 80.4 70.8 average 114%
Portland (Cashmore Airport) 17.3 +2.2 24.8 1st 9.5 +2.1 5.9 8th 80.0 86.6 average 92%
Portland NTC AWS 17.2 25.5 1st 10.9 7.4 8th
Warrnambool Airport NDB 17.7 +1.7 24.4 3rd 8.4 +1.7 2.8 8th 69.2 70.6 average 98%

Notes

A Monthly Climate Summary is prepared to list the main features of the weather in Victoria using the most timely and accurate information available on the date of publication; it will generally not be updated. Later information, including data that has had greater opportunity for quality control, will be presented in the Monthly Weather Review, usually published in the fourth week of the month.

This statement has been prepared based on information available at 11 am on Tuesday 1 October 2013. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

Averages 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 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, average in decile 4 to 7, high in decile 8 or 9 and very high is in decile 10).
The Fraction of average shows how much rain has fallen this time as a percentage of the long-term mean.

The ACORN-SAT dataset is being used for temperature area averages from December 2012 onwards. The major change from earlier datasets is that the ACORN-SAT dataset commences in 1910, rather than 1950, and hence rankings are calculated using a larger set of years.

Further information

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