Monday, 2 October 2017 - Monthly Climate Summary for Victoria - Product code IDCKGC16R0

Victoria in September 2017: Dry in the north, wet in the south; mild temperatures

September rainfall in Victoria was below average across most of the State, particularly across the northern districts. Coastal areas saw average to above average rainfall. Mean maximum and mean minimum temperatures were near average across the State as a whole, though clear skies saw cooler than average nights across northern parts. A warm spell in the third week saw several locations report their warmest September day on record.

Below average rainfall in the north and above average in some southern coastal regions

• The succession of cold fronts that passed through Victoria in the first two weeks of September brought some good rainfalls to coastal regions that saw several locations report their wettest September for at least 20 years
• The rainfall associated with the fronts didn't extend to the interior of the state, resulting in several stations recording their driest September for at least 20 years

Warmer days in the northwest cooler nights in across the north

• Average maximum temperatures were recorded through most of the central regions of Victoria, below average temperatures in the Western Plains and West Coast, while the Mallee and North Wimmera recorded above average September maximum temperatures
• A warm spell in the third week of the month saw several locations report their highest September temperature on record. In particular, Mildura set a new State record for Victoria on the 23rd with 37.7 °C; the previous record was 37.4 °C also at Mildura on 22 September 2003. The warm temperatures were the result of a high pressure cell located in the Tasman that brought warm air from the interior of the continent
• The warm spell saw Combienbar and Mount Baw Baw, both Alpine sites, recorded their warmest September night (highest daily minimum temperature) on record
• The cold fronts at the beginning of the month resulted in several stations (Dartmouth Reservoir, Port Fairy and Cape Nelson Lighthouse) recording their coldest September day (lowest maximum temperature) on record
• Cold nights during the month saw Avalon Airport and Swan Hill aerodrome report their coldest September temperature on record

Wind and Snow

• During the first week of September, a strong cold front crossing south of Australia extended a pool of cold air over Victoria bringing showers, thunder and small hail. Strong winds during 3rd to 9am on 4th included 115 km/h at Mt Buller and 107 km/h at Mt Hotham 103 km/hr at Port Fairy
• Snow was reported down to low levels with reports of snow settling at Lorne, Beech Forest and other towns in the Otways
• The passage of a fast moving cold front on the morning of the 30th, across southern Victoria, produced a wind gust of 141 km/h at Wilsons Promontory Lighthouse
• A cold front on the 18 September resulted in strong winds. Mt William recorded 117 km/h, Wilson Promontory and Melbourne airport 94 km/h, Cape Otway 87 km/h and Mt Hotham 85 km/h

Extremes Maps Records Summaries Important notes the top

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Extremes in September 2017
Hottest day	37.7 °C at Mildura Airport on the 23rd
Warmest days on average	22.8 °C at Mildura Airport
Coolest days on average	2.7 °C at Mount Hotham
Coldest day	-3.9 °C at Mount Hotham on the 4th
Coldest night	-7.5 °C at Mount Hotham on the 5th
Coolest nights on average	-2.8 °C at Mount Hotham
Warmest nights on average	9.7 °C at Gabo Island Lighthouse
Warmest night	17.9 °C at Combienbar AWS on the 23rd
Warmest on average overall	15.2 °C at Mildura Airport
Coolest on average overall	0.0 °C at Mount Hotham
Wettest overall	234.6 mm at Balook
Driest overall	0 mm at Lima South (Lake Nillahcootie)
Wettest day	41.4 mm at Ferny Creek on the 16th
Strongest wind gust	141 km/h at Wilsons Promontory Lighthouse on the 30th

Extremes Maps Records Summaries Important notes the top

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Maps
	Observed	Anomaly	Decile rank
Total rainfall
Mean daily maximum temperatures
Mean daily minimum temperatures

Click on a map to show it full size in a pop-up window

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Record highest September total rainfall
	New record (mm)	Old record		Years of record	Average for September
Apollo Bay	223.0	199.6	in 1952	117	110.1
Simpson South	200.6	179.2	in 1974	50	102.2
Port Fairy AWS	96.2	94.0	in 2016	24	70.1

Highest September total rainfall for at least 20 years
	Observed (mm)	Most recent higher		Average for September
Terang	139.4	157.4	in 1983*	80.8
Hawkesdale (Post Office)	114.2	116.8	in 1992*	73.0
Mount Best (Upper Toora)	172.4	299.4	in 1993*	112.2
Cobden (Post Office)	158.0	159.4	in 1996	87.8
Rhyll	112.0	129.0	in 1996	68.9
Ventnor (Oaklands)	117.2	146.8	in 1996	71.2
Durdidwarrah	103.6	105.0	in 1996*	68.0

* note: there are gaps in the historical record at this site, so it is possible a higher value has gone unreported

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Record lowest September total rainfall
	New record (mm)	Old record		Years of record	Average for September
Kyabram	6.2	8.8	in 2007	54	42.2
Swan Hill Aerodrome	6.8	7.8	in 2008	21	28.1

Lowest September total rainfall for at least 20 years
	Observed (mm)	Most recent lower		Average for September
Birchip (Woodlands)	5.2	4.8	in 1951	35.6
Rutherglen Research	9.0	=9.0	in 1972	54.3
Ouyen (Post Office)	7.0	4.6	in 1980	33.1
Ultima (Post Office)	11.0	7.2	in 1982*	34.5

* note: there are gaps in the historical record at this site, so it is possible a lower value has gone unreported

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Record highest September temperature
	New record (°C)		Old record		Years of record	Average for September
Gabo Island Lighthouse	31.2	on the 23rd	31.0	on the 30th in 1973	107	15.9
Kerang	36.6	on the 23rd	34.9	on the 28th in 1928	104	19.1
Laverton RAAF	31.3	on the 23rd	31.2	on the 12th in 2009	74	17.0
East Sale	33.9	on the 23rd	33.0	on the 30th in 1980	73	17.1
Mildura Airport	37.7	on the 23rd	37.4	on the 22nd in 2003	72	20.5
Echuca Aerodrome	36.0	on the 23rd	34.0	on the 30th in 2001	61	18.3
Ouyen (Post Office)	36.6	on the 23rd	35.6	on the 22nd in 2003	61	20.3
Mangalore Airport	31.8	on the 23rd	29.7	on the 27th in 2008	59	16.8
Tatura Inst Sustainable Ag	33.7	on the 23rd	31.7	on the 27th in 2008	53	17.5
Scoresby Research Institute	30.8	on the 23rd	30.0	on the 26th in 1987	52	16.5
Kyabram	33.9	on the 23rd	32.2	on the 12th in 2009	51	17.6
Point Hicks (Lighthouse)	36.4	on the 23rd	31.1	on the 18th in 1981	49	16.6
Lake Eildon	28.5	on the 23rd	28.2	on the 26th in 1987	48	16.6
Melbourne Airport	30.2	on the 23rd	= 30.2	on the 12th in 2009	48	16.7
Bairnsdale Airport	35.4	on the 23rd	32.6	on the 26th in 1987	37	17.7
Bundoora (Latrobe University)	30.5	on the 23rd	29.2	on the 12th in 2009	35	17.0
Morwell (Latrobe Valley Airport)	31.4	on the 23rd	31.0	on the 27th in 1987	34	17.0
Edi Upper	27.0	on the 23rd	26.5	on the 27th in 2008	30	16.3
Cranbourne Botanic Gardens	30.0	on the 23rd	28.4	on the 19th in 2006	27	16.6
Bendigo Airport	32.8	on the 23rd	30.4	on the 12th in 2009	26	17.0
Gelantipy	27.4	on the 23rd	23.8	on the 22nd in 2003	25	13.8
Hunters Hill	24.5	on the 23rd	21.5	on the 19th in 2006	25	12.3
Mallacoota	35.2	on the 23rd	31.1	on the 16th in 1996	25	17.5
Redesdale	29.1	on the 23rd	28.5	on the 12th in 2009	25	16.3
Combienbar AWS	31.8	on the 23rd	30.2	on the 18th in 1995	24	15.7
Mount Moornapa	33.0	on the 23rd	29.1	on the 30th in 2013	24	16.2
Yarrawonga	34.0	on the 23rd	31.4	on the 27th in 2008	24	18.5
Coldstream	29.7	on the 23rd	28.3	on the 19th in 2006	23	17.2
Mount Nowa Nowa	32.7	on the 23rd	28.2	on the 19th in 2011	22	16.9
Shepparton Airport	34.1	on the 23rd	31.8	on the 27th in 2008	22	18.2
Swan Hill Aerodrome	36.3	on the 23rd	34.1	on the 27th in 2008	21	20.3
Mount Baw Baw	16.6	on the 23rd	15.7	on the 27th in 2008	20	5.7

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Record lowest September daily maximum temperature
	New record (°C)		Old record		Years of record	Average for September
Dartmouth Reservoir	7.6	on the 5th	8.0	on the 14th in 2003	39	16.6
Port Fairy AWS	9.7	on the 4th	10.2	on the 11th in 2004	26	16.6
Cape Nelson Lighthouse	10.1	on the 4th	10.2	on the 11th in 2004	22	15.9

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Record highest September daily minimum temperature
	New record (°C)		Old record		Years of record	Average for September
Combienbar AWS	17.9	on the 23rd	17.7	on the 28th in 2012	24	6.5
Mount Baw Baw	8.8	on the 23rd	8.7	on the 4th in 2013	20	-0.1

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Record lowest September temperature
	New record (°C)		Old record		Years of record	Average for September
Avalon Airport	-1.7	on the 1st	-1.0	on the 23rd in 2007	23	6.8
Swan Hill Aerodrome	-1.7	on the 17th	-1.6	on the 12th in 2011	21	5.9

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Record lowest September mean daily minimum temperature
	New record (°C)	Old record		Years of record	Average for September
Cape Nelson Lighthouse	8.7	= 8.7	in 2012	21	9.5

Lowest September mean daily minimum temperature for at least 20 years
	Observed (°C)	Most recent lower		Average for September
Rhyll	8.5	8.3	in 1995	9.5

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Lowest September mean temperature for at least 20 years
	Observed (°C)	Most recent lower		Average for September
Dartmouth Reservoir	9.8	8.5	in 1994	10.6
Edi Upper	9.3	8.9	in 1994	10.8

Extremes Maps Records Summaries Important notes the top

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Summary statistics for September 2017
	Maximum temperatures (°C)				Minimum temperatures (°C)				Rainfall (millimetres)
	Mean for September 2017	Diff from average	Highest for September 2017		Mean for September 2017	Diff from average	Lowest for September 2017		Total for September 2017	Average for September	Rank of September 2017	Fraction of September average
North Mallee (district 76)
Mildura Airport	22.8	+2.3	37.7	23rd	7.5	+0.1	1.1	9th	4.0	27.1	v low	15%
Ouyen (Post Office)	22.4	+2.1	36.6	23rd	7.0	+0.3	0.9	10th	7.0	33.1	v low	21%
Walpeup Research	21.5	+1.8	35.3	23rd	6.8	-0.1	1.6	9th	9.6	31.8	low	30%
South Mallee (district 77)
Hopetoun Airport	20.7	+0.5	34.6	23rd	4.6	-0.4	-1.0	10th	17.0	28.9	low	59%
Swan Hill Aerodrome	20.6	+0.3	36.3	23rd	5.0	-0.9	-1.7	17th	6.8	28.1	lowest	24%
North Wimmera (district 78)
Kellalac (Warracknabeal Airport)	19.1		30.6	23rd	4.9		-1.1	17th	19.4
Nhill Aerodrome	18.0	-0.5	28.3	23rd	6.3	+0.4	-0.2	26th	29.0	31.8	average	91%
Warracknabeal Museum	19.1	+0.9	31.5	23rd	6.0	+0.1	-1.0	26th	21.6	42.0	low	51%
South Wimmera (district 79)
Edenhope Airport	16.8	-0.4	25.5	22nd	7.0	+0.3	1.3	26th	63.8	52.1	high	122%
Grampians (Mount William)	8.1	-0.8	19.0	23rd	1.5	-0.8	-2.4	5th	111.4	122.2	average	91%
Horsham Aerodrome	17.5	-0.6	28.0	23rd	4.5	0.0	-2.7	26th	27.8	39.2	average	71%
Kanagulk	16.3	-0.3	24.6	22nd	6.2	+0.5	0.5	26th	59.6	43.4	high	137%
Longerenong	17.5	+0.2	27.8	23rd	4.9	-0.2	-1.9	26th	29.2	40.8	average	72%
Pyrenees (Ben Nevis)	11.7		22.6	23rd	3.6		-0.7	5th	62.8	74.8	average	84%
Stawell Aerodrome	16.2	-0.5	27.3	23rd	6.2	+0.1	-0.6	17th	31.8	52.8	low	60%
Lower North (district 80)
Charlton	19.2	+0.3	33.9	23rd	4.9	-0.5	-1.8	17th	16.0	38.5	low	42%
Echuca Aerodrome	19.1	+0.8	36.0	23rd	5.1	-1.2	-1.4	1st	7.3	39.1	v low	19%
Kerang	20.3	+1.2	36.6	23rd	6.2	-0.4	0.2	17th	9.2	35.7	v low	26%
Kyabram	18.4	+0.8	33.9	23rd	4.7	-0.6	-1.8	1st	6.2	42.2	lowest	15%
Upper North (district 81)
Bendigo Airport	17.7	+0.7	32.8	23rd	4.6	+0.1	-1.6	17th	13.6	52.5	v low	26%
Shepparton Airport	18.0	-0.2	34.1	23rd	5.0	-0.5	-1.7	1st	6.6	38.2	v low	17%
Tatura Inst Sustainable Ag	17.8	+0.3	33.7	23rd	4.7	-0.7	-2.2	1st	10.4	43.1	v low	24%
Yarrawonga	18.4	-0.1	34.0	23rd	4.7	-0.5	-1.3	17th	6.4	44.5	v low	14%
Lower Northeast (district 82)
Benalla Airport	17.1	-0.7	28.3	23rd	3.8	-0.9	-2.2	17th	23.5	45.1	average	52%
Corryong Airport	16.3	-1.7	27.0	23rd	3.1	0.0	-3.0	17th	33.6	67.4	low	50%
Dartmouth Reservoir	15.9	-0.7	27.0	23rd	3.7	-0.9	-1.5	18th	70.8	103.8	low	68%
Hunters Hill	11.5	-0.8	24.5	23rd	3.6	-1.0	-1.2	5th	79.8	119.9	average	67%
Rutherglen Research	17.3	+0.1	28.6	23rd	2.9	-1.3	-4.0	17th	9.0	54.3	v low	17%
Strathbogie	13.8	-0.5	25.5	23rd	3.2	-0.6	-3.5	1st	40.6	94.8	low	43%
Wangaratta Aero	17.1	-0.5	28.3	23rd	4.1	-0.5	-1.9	1st	17.6	55.4	low	32%
Upper Northeast (district 83)
Edi Upper	15.1	-1.2	27.0	23rd	4.2	-1.1	-1.0	17th	39.9	100.2	low	40%
Falls Creek	3.6	-1.3	13.9	23rd	-1.8	-1.0	-6.8	5th	129.8	119.7	average	108%
Mount Buller	3.7	-1.3	15.0	23rd	-1.9	-1.2	-6.4	5th	212.6	148.8	high	143%
Mount Hotham	2.7	-0.8	12.6	23rd	-2.8	-1.2	-7.5	5th
Omeo	15.7	+0.4	27.0	23rd	2.4	-0.9	-5.0	1st	27.8	53.8	v low	52%
East Gippsland (district 84)
Combienbar AWS	16.9	+1.2	31.8	23rd	6.2	-0.3	1.2	6th	1.2	72.7	lowest	2%
Gabo Island Lighthouse	17.5	+1.6	31.2	23rd	9.7	0.0	6.7	6th	26.6	72.2	low	37%
Gelantipy	14.5	+0.7	27.4	23rd	4.0	-0.5	-2.1	1st	43.2	59.7	average	72%
Lakes Entrance (Eastern Beach Road)	19.1	+1.0	35.7	23rd	7.3	-0.6	1.9	2nd	37.2	52.9	low	70%
Mallacoota	18.4	+0.9	35.2	23rd	7.7	-0.6	3.0	11th	41.0	80.4	low	51%
Mount Nowa Nowa	17.7	+0.8	32.7	23rd	7.1	-0.8	2.6	6th	42.8	64.2	average	67%
Orbost	18.9	+0.7	34.6	23rd	6.8	-0.9	1.9	1st	33.2	59.0	low	56%
Point Hicks (Lighthouse)	17.5	+0.9	36.4	23rd	8.6	-1.0	4.8	6th	63.5	76.6	average	83%
West Gippsland (district 85)
Bairnsdale Airport	19.4	+1.7	35.4	23rd	5.3	-0.6	-1.7	1st	30.6	52.4	low	58%
Corner Inlet (Yanakie)	15.5		22.2	23rd	7.2		2.4	5th	155.6
East Sale	18.0	+0.9	33.9	23rd	5.5	-0.1	-2.2	1st	31.2	50.7	low	62%
Morwell (Latrobe Valley Airport)	17.1	+0.1	31.4	23rd	5.8	-0.1	-0.7	1st	100.4	74.5	high	135%
Mount Baw Baw	4.6	-1.1	16.6	23rd	-1.2	-1.1	-5.7	5th	234.2	154.5	high	152%
Mount Moornapa	18.1	+1.9	33.0	23rd	6.3	-0.6	1.8	1st	31.4	54.3	low	58%
Nilma North (Warragul)	16.2		29.8	23rd	6.3		1.6	1st	140.2
Pound Creek	16.2	-0.5	23.4	23rd	7.5	-0.1	3.3	1st	131.4	80.5	v high	163%
Wilsons Promontory Lighthouse	15.0	+0.8	25.9	22nd	8.6	-0.4	4.0	5th	186.2	99.0	v high	188%
Yarram Airport	16.7		26.7	23rd	6.2		1.7	1st	82.4	49.4	v high	167%
East Central (district 86)
Bundoora (Latrobe University)	17.6	+0.6	30.5	23rd	7.2	-0.1	0.0	1st	43.8	59.4	low	74%
Cerberus	16.5	0.0	24.7	23rd	7.5	-0.1	3.4	20th	92.2	67.5	high	137%
Coldstream	17.0	-0.2	29.7	23rd	5.1	-0.5	-2.6	1st	65.8	70.2	average	94%
Cranbourne Botanic Gardens	17.0	+0.4	30.0	23rd	7.2	-0.6	1.3	1st	110.3	85.8	high	129%
Essendon Airport	17.8	+1.0	29.3	23rd	7.7	+0.9	1.2	1st	33.6	51.4	low	65%
Ferny Creek	13.3		26.8	23rd	5.8		1.5	14th	109.0
Frankston AWS	15.0	-0.6	25.6	23rd	8.9	-0.6	4.8	1st
Melbourne (Olympic Park)	17.8		30.6	23rd	9.0		3.7	1st	39.6
Melbourne Airport	17.7	+1.0	30.2	23rd	7.0	-0.1	1.1	1st	26.0	47.2	low	55%
Moorabbin Airport	17.0	+0.1	29.9	23rd	8.3	+0.2	0.8	1st	38.6	64.6	low	60%
Rhyll	15.6	-0.5	23.7	23rd	8.5	-1.0	4.3	5th	112.0	68.9	v high	163%
Scoresby Research Institute	17.0	+0.5	30.8	23rd	7.5	-0.1	0.0	1st	77.6	83.1	average	93%
Viewbank	17.6	-0.2	31.0	23rd	7.6	-0.3	0.8	1st	47.2	56.2	average	84%
Wonthaggi	16.3	+0.2	24.4	23rd	7.8	0.0	3.6	1st	145.0	89.9	v high	161%
West Central (district 87)
Avalon Airport	18.0	+0.3	25.2	21st	6.5	-0.3	-1.7	1st	23.6	45.5	low	52%
Breakwater (Geelong Racecourse)	17.1		23.2	21st	7.1		0.7	1st	68.2
Laverton RAAF	18.1	+1.1	31.3	23rd	7.3	+0.6	-0.5	1st	20.8	49.0	v low	42%
Sheoaks	15.3	-0.2	23.8	22nd	5.7	-0.6	-1.5	1st	51.2	49.1	average	104%
North Central (district 88)
Castlemaine Prison	16.4	+0.7	28.6	23rd	5.9	+0.9	-1.0	1st	26.7	61.6	low	43%
Eildon Fire Tower	13.0	-0.6	25.0	23rd	4.9	-0.9	0.8	5th	48.4	65.2	average	74%
Lake Eildon	16.7	+0.1	28.5	23rd	5.7	+0.1	-0.2	17th	59.6	81.9	average	73%
Mangalore Airport	17.3	+0.5	31.8	23rd	3.5	-1.8	-2.3	17th	9.8	55.0	v low	18%
Maryborough	17.0	+0.3	30.1	23rd	5.3	-0.1	-1.0	1st	30.7	52.2	average	59%
Redesdale	17.0	+0.7	29.1	23rd	3.5	-0.7	-2.8	1st	21.2	53.5	low	40%
Wallan (Kilmore Gap)	13.4	+0.2	24.2	23rd	5.2	-0.5	1.1	5th	38.2	62.5	low	61%
Western Plains (district 89)
Ararat Prison	16.0	+0.8	26.5	23rd	5.6	+0.5	-1.2	17th	49.4	61.8	average	80%
Ballarat Aerodrome	14.3	+0.4	25.6	23rd	4.1	-0.7	-2.2	17th	50.4	71.8	low	70%
Westmere	15.1	-0.7	24.0	23rd	5.1	+0.1	-0.8	17th	56.6	50.7	high	112%
West Coast (district 90)
Aireys Inlet	16.1	-0.1	22.2	21st	7.5	-0.7	2.8	5th	73.2	60.1	high	122%
Cape Nelson Lighthouse	15.5	-0.4	20.1	27th	8.7	-0.8	3.7	17th	93.2	74.6	high	125%
Cape Otway Lighthouse	15.0	-0.2	21.9	22nd	8.5	0.0	4.3	5th	150.0	90.3	v high	166%
Casterton	15.6	-0.8	23.5	22nd	6.3	+0.1	0.3	17th	105.8	68.3	high	155%
Colac (Mount Gellibrand)	14.1	-0.5	22.0	22nd	5.8	-0.7	0.9	5th	102.8	56.5	high	182%
Dartmoor	15.7		24.4	22nd	6.6		-0.1	17th	109.8
Hamilton Airport	15.0	-0.3	22.8	22nd	5.9	+0.1	-0.7	17th	72.0	68.3	average	105%
Mortlake Racecourse	15.9	+0.1	23.2	22nd	5.9	+0.2	0.7	17th	69.6	58.1	high	120%
Port Fairy AWS	16.1	-0.5	23.1	22nd	8.1	-0.2	2.9	17th	96.2	70.1	highest	137%
Portland (Cashmore Airport)	15.2	-0.1	22.5	22nd	7.6	+0.1	2.5	17th	124.8	87.6	high	142%
Warrnambool Airport NDB	15.5	-0.6	22.4	22nd	6.7	-0.1	0.6	17th	141.6	75.4	v high	188%

Extremes Maps Records Summaries Important notes the top

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