Tuesday, 1 October 2024 - Monthly Climate Summary for Victoria - Product code IDCKGC16R0

Victoria in September 2024

Rainfall

• The September area-averaged rainfall total was below average (lowest 30% of all Septembers since 1900) to very much below average (lowest 10% of all Septembers since 1900) across the state's north. Most of the south was generally within 10 mm of average, except some regions in the far south with above average September rainfall total (highest 30% of all Septembers since 1900).
• Victoria's area-averaged rainfall total for September was 43.28 mm, which was 32.9% below the 1961–1990 average.

Temperature

• Mean maximum temperatures for September were above average (top 30% of all Septembers since 1910) to very much above average (top 10% of all Septembers since 1910) across most of the state, except the south-west and an area of the far south.
• The area-averaged September mean maximum temperature for Victoria was 17.54 °C, which was 1.35 °C above the 1961–1990 average.
• Mount Hotham in the North East district had its equal highest September temperature on record on the 28th at 13.7 °C. This matches the previous record in 2001.
• On the 14th, Orbost in East Gippsland had its coldest September day (lowest maximum temperature) on record at 9.6 °C. The previous record was 10.2 °C in 2012.
• Mean minimum temperatures for September were above average (top 30% of all Septembers since 1910) to very much above average (top 10% of all Septembers since 1910) across the southern half of the state, but below average for the north-west.
• The area-averaged September mean minimum temperature was 6.38 °C, which was 0.63 °C above the 1961–1990 average.
• On the 16th, Charlton in the Mallee district had its equal lowest September temperature on record at -2.1 °C as a cold front passed with cold south to south-westerly winds. The previous record was in 2014.
• Some sites had their warmest September night (highest daily minimum temperature) on record on the 6th as north-westerly winds carried warm air from the central inland, resulting in a warm period.
• The mean temperature for September was above average (top 30% of all Septembers since 1910) to very much above average (top 10% of all Septembers since 1910) across most of the state.
• The area-averaged September mean temperature was 11.96 °C, which was 0.99 °C above the 1961–1990 average.

Extremes Maps Records Summaries Important notes the top

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Extremes in September 2024
Hottest day	33.3 °C at Mildura Airport on the 5th
Warmest days on average	22.8 °C at Mildura Airport
Coolest days on average	4.6 °C at Mount Hotham
Coldest day	-3.1 °C at Mount Hotham on the 2nd
Coldest night	-7.5 °C at Mount Hotham on the 15th
Coolest nights on average	-1.7 °C at Mount Hotham
Warmest nights on average	10.6 °C at Gabo Island Lighthouse
Warmest night	21.4 °C at Mildura Airport on the 6th
Warmest on average overall	15.0 °C at Mildura Airport
Coolest on average overall	1.5 °C at Mount Hotham
Wettest overall	215.0 mm at Mount Baw Baw
Wettest day	47.0 mm at Darriman (Tarralangi) on the 19th
Strongest wind gust	146 km/h at Wilsons Promontory Lighthouse on the 2nd

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 temperature
	New record (°C)		Old record		Years of record	Average for September
Mount Hotham	13.7	on the 28th	= 13.7	on the 30th in 2001	33	3.7




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Record lowest September daily maximum temperature
	New record (°C)		Old record		Years of record	Average for September
Orbost	9.6	on the 14th	10.2	on the 12th in 2012	24	18.3




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Record highest September daily minimum temperature
	New record (°C)		Old record		Years of record	Average for September
Walpeup Research	19.3	on the 6th	18.9	on the 26th in 1965	57	6.9
Charlton	16.6	on the 6th	14.9	on the 24th in 2014	21	5.3
Hopetoun Airport	19.6	on the 6th	16.9	on the 3rd in 2021	21	4.9




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Record lowest September temperature
	New record (°C)		Old record		Years of record	Average for September
Charlton	-2.1	on the 16th	= -2.1	on the 19th in 2014	21	5.3





Extremes Maps Records Summaries Important notes the top

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Summary statistics for September 2024
	Maximum temperatures (°C)				Minimum temperatures (°C)				Rainfall (millimetres)
	Mean for September 2024	Diff from average	Highest for September 2024		Mean for September 2024	Diff from average	Lowest for September 2024		Total for September 2024	Average for September	Rank of September 2024	Fraction of September average
North Mallee (district 76)
Mildura Airport	22.8	+2.1	33.3	5th	7.1	-0.3	0.7	16th	11.6	26.3	low	44%
Ouyen (Post Office)	22.6	+2.2	29.9	6th	5.5	-1.2	0.5	16th	3.0	32.6	v low	9%
Walpeup Research	22.4	+2.6	28.9	6th	6.0	-0.9	-1.2	16th	7.2	31.4	v low	23%
South Mallee (district 77)
Hopetoun Airport	21.3	+1.0	28.2	24th	4.8	-0.1	-2.9	17th	7.6	27.2	low	28%
Swan Hill Aerodrome	21.5	+1.1	31.2	6th	5.5	-0.3	-1.5	16th	18.6	27.5	average	68%
North Wimmera (district 78)
Kellalac (Warracknabeal Airport)	19.5		26.9	24th	5.1		-2.3	18th	12.8
Nhill Aerodrome	18.6	+0.2	23.7	28th	6.0	+0.2	-1.1	15th	17.0	31.8	low	53%
South Wimmera (district 79)
Edenhope Airport	16.1	-0.9	22.6	28th	7.1	+0.6	0.0	27th	34.8	47.8	average	73%
Grampians (Mount William)	8.6	-0.4	16.5	5th	2.1	-0.2	-1.9	15th	182.4	118.9	v high	153%
Horsham Aerodrome	18.0	0.0	23.3	28th	4.9	+0.5	-2.6	18th	14.4	37.5	low	38%
Kanagulk	16.3	-0.3	21.7	28th	6.4	+0.8	-1.7	27th	42.6	44.3	average	96%
Longerenong	18.3	+0.9	23.8	24th	5.2	+0.2	-2.4	18th	12.8	40.3	low	32%
Pyrenees (Ben Nevis)	12.0	0.0	19.5	24th	4.1	-0.2	0.2	2nd	37.0	67.9	average	54%
Stawell Aerodrome	16.6	0.0	22.2	24th	7.0	+1.0	0.9	27th	16.4	47.7	low	34%
Lower North (district 80)
Charlton	19.8	+0.8	27.6	24th	5.6	+0.3	-2.1	16th	11.8	35.2	low	34%
Echuca Aerodrome	20.0	+1.6	30.7	6th	6.2	-0.1	1.5	16th	14.1	38.4	low	37%
Kerang	20.7	+1.5	31.1	6th	7.0	+0.4	1.9	16th	10.4	35.2	low	30%
Kyabram	19.1	+1.4	28.8	6th	6.2	+0.9	0.5	18th	12.6	40.8	low	31%
Upper North (district 81)
Bendigo Airport	17.8	+0.7	26.3	6th	5.1	+0.5	-1.1	18th	24.8	50.8	low	49%
Shepparton Airport	19.0	+0.7	29.4	6th	5.9	+0.4	-0.1	18th	13.2	36.4	low	36%
Tatura Inst Sustainable Ag	18.8	+1.3	29.4	6th	5.4	0.0	-1.0	18th	13.4	42.3	v low	32%
Yarrawonga	19.4	+0.8	30.1	6th	5.0	-0.1	-0.1	18th	33.6	42.8	average	79%
Lower Northeast (district 82)
Benalla Airport	18.2	+0.3	27.5	6th	4.7	+0.1	-2.3	15th	27.9	40.6	average	69%
Corryong Airport	18.2	+0.2	24.0	24th	3.4	+0.1	-3.8	16th	28.0	68.7	low	41%
Dartmouth Reservoir	17.4	+0.7	25.0	6th	4.9	+0.3	-2.2	16th	40.5	100.5	v low	40%
Hunters Hill	12.9	+0.5	21.8	6th	4.4	-0.2	-1.2	15th	84.0	116.0	average	72%
Rutherglen Research	18.6	+1.3	28.4	6th	3.1	-1.0	-3.8	16th	39.6	53.6	average	74%
Strathbogie	15.1	+0.7	22.3	6th	3.3	-0.4	-1.6	15th	51.6	93.2	low	55%
Wangaratta Aero	18.4	+0.7	27.3	6th	4.8	+0.2	-1.3	18th	32.4	52.6	low	62%
Upper Northeast (district 83)
Falls Creek	5.6	+0.6	14.4	28th	-1.1	-0.3	-6.9	15th	129.8	120.2	average	108%
Mount Buller	5.5	+0.4	12.0	28th	-1.0	-0.4	-6.8	15th	143.0	142.7	average	100%
Mount Hotham	4.6	+0.9	13.7	28th	-1.7	-0.1	-7.5	15th	128.8	126.7	average	102%
Omeo	16.2	+0.7	23.0	28th	4.1	+1.0	-4.6	16th	47.0	53.7	average	88%
East Gippsland (district 84)
Combienbar AWS	15.9	0.0	23.7	6th	6.8	+0.2	0.1	15th	70.4	72.6	average	97%
Gabo Island Lighthouse	18.0	+2.0	29.8	6th	10.6	+0.8	6.6	15th	49.2	70.9	average	69%
Gelantipy	14.5	+0.5	21.8	6th	5.1	+0.6	-0.9	27th	55.8	58.3	average	96%
Lakes Entrance (Eastern Beach Road)	18.2	+0.1	30.1	6th	8.5	+0.8	3.0	18th	70.8	50.4	high	140%
Mallacoota	18.7	+1.1	30.2	6th	9.0	+0.7	3.6	18th	61.6	75.7	average	81%
Mount Nowa Nowa	17.7	+0.6	27.0	6th	8.1	+0.2	2.1	15th	74.2	63.0	average	118%
Orbost	18.5	+0.2	29.2	6th	8.4	+0.8	3.8	18th	82.0	61.0	high	134%
West Gippsland (district 85)
Bairnsdale Airport	18.3	+0.4	28.5	6th	6.9	+1.1	1.3	18th	60.8	50.4	high	121%
East Sale	17.9	+0.7	28.3	6th	6.8	+1.2	0.3	18th	63.2	49.5	high	128%
East Sale Airport	18.0		28.8	6th	6.8		0.5	18th	68.8
Morwell (Latrobe Valley Airport)	17.4	+0.3	27.0	6th	6.6	+0.7	-0.8	15th	86.8	73.9	average	117%
Mount Moornapa	16.4	0.0	26.2	6th	7.7	+0.7	1.9	15th	74.6	55.4	high	135%
Nilma North (Warragul)	16.6	-0.1	24.3	24th	6.9	+0.4	0.3	15th	95.0	83.9	average	113%
Pound Creek	16.1	-0.7	22.4	5th	8.5	+1.0	2.5	15th	95.2	80.0	high	119%
Wilsons Promontory Lighthouse	15.0	+0.7	23.6	5th	10.0	+0.9	6.7	3rd	176.4	98.8	v high	179%
Yarram Airport	17.2	-0.2	25.9	6th	7.0	+0.9	1.3	18th	47.4	48.2	average	98%
East Central (district 86)
Cerberus	16.8	+0.2	22.9	24th	8.9	+1.3	4.2	18th	82.0	67.0	high	122%
Coldstream	17.3	0.0	23.5	6th	6.2	+0.6	0.2	15th	64.6	68.1	average	95%
Essendon Airport	18.0	+1.1	25.6	24th	9.1	+2.2	4.8	15th	38.8	50.2	average	77%
Ferny Creek	13.8	-0.2	20.8	24th	6.5	-0.3	2.7	15th	139.8	99.3	high	141%
Frankston (Ballam Park)	16.6		23.1	24th	9.1		4.5	15th	56.8
Melbourne (Olympic Park)	17.8	-0.2	25.3	24th	10.1	+0.6	5.1	18th	48.0	44.8	average	107%
Melbourne Airport	17.6	+0.8	24.1	24th	8.0	+0.9	4.0	15th	39.8	45.7	average	87%
Moorabbin Airport	17.4	+0.4	25.1	24th	9.2	+1.1	3.8	15th	56.6	63.1	average	90%
Rhyll	16.5	+0.3	21.6	24th	10.0	+0.5	6.4	15th	79.8	66.9	high	119%
Scoresby Research Institute	17.3	+0.7	23.7	24th	8.3	+0.7	2.8	15th	27.4	80.1	lowest	34%
Viewbank	17.9	+0.1	23.9	24th	8.5	+0.7	3.6	28th	68.4	55.2	average	124%
West Central (district 87)
Avalon Airport	18.3	+0.4	25.8	24th	7.9	+1.2	2.8	28th	37.0	43.2	average	86%
Breakwater (Geelong Racecourse)	17.3	-0.5	23.2	24th	8.8	+1.0	5.1	15th	52.2	48.5	average	108%
Laverton RAAF	18.5	+1.4	26.7	24th	8.9	+2.1	4.2	28th	36.8	47.6	average	77%
Point Cook RAAF	18.0		25.1	24th	8.6		3.7	18th	42.2
She Oaks	16.0	+0.5	22.6	24th	7.2	+1.0	1.3	15th	44.4	46.8	average	95%
North Central (district 88)
Castlemaine Prison	16.2	+0.4	23.0	24th	5.7	+0.6	-1.0	15th	42.6	59.9	average	71%
Eildon Fire Tower	13.9	+0.2	21.7	6th	6.0	+0.2	1.4	15th	32.4	62.3	low	52%
Lake Eildon	17.4	+0.7	25.4	6th	6.4	+0.8	-0.5	15th	44.4	81.1	low	55%
Mangalore Airport	18.1	+1.2	27.2	6th	4.5	-0.8	-1.6	15th	17.2	53.6	v low	32%
Maryborough	17.4	+0.6	24.9	24th	5.8	+0.4	0.3	15th	25.0	51.4	low	49%
Puckapunyal Lyon Hill (Defence)	17.3		26.6	6th	6.6		2.1	17th	25.4
Puckapunyal West (Defence)	16.6		25.4	6th	6.0		-0.1	18th	28.0
Redesdale	17.6	+1.1	24.6	6th	4.7	+0.5	-2.0	18th	28.4	52.6	low	54%
Wallan (Kilmore Gap)	13.8	+0.5	21.1	6th	5.7	0.0	1.9	15th	50.8	59.6	average	85%
Western Plains (district 89)
Ararat Prison	15.9	+0.5	21.5	24th	6.2	+1.0	-1.3	15th	34.1	60.0	low	57%
Ballarat Aerodrome	14.4	+0.5	21.7	24th	5.1	+0.3	0.5	27th	44.8	70.4	low	64%
Westmere	15.2	-0.5	22.0	28th	5.5	+0.6	-1.9	27th	34.2	48.3	low	71%
West Coast (district 90)
Aireys Inlet	16.4	+0.1	24.0	28th	8.9	+0.6	5.8	15th	66.8	57.0	average	117%
Cape Nelson Lighthouse	15.1	-0.9	22.3	28th	10.1	+0.6	4.8	27th	96.0	72.3	high	133%
Cape Otway Lighthouse	14.9	-0.3	22.1	28th	9.7	+1.1	5.8	14th	114.4	90.1	high	127%
Casterton	15.6	-0.7	20.8	28th	7.0	+0.9	-0.8	27th	18.8	63.0	lowest	30%
Colac (Mount Gellibrand)	14.6	-0.1	20.6	28th	7.3	+0.7	3.9	15th	52.4	53.1	average	99%
Dartmoor	15.6	-0.9	21.3	28th	8.0	+1.3	-0.7	27th	81.2	69.8	average	116%
Hamilton Airport	14.9	-0.4	20.0	28th	6.9	+1.1	1.2	27th	78.4	67.2	average	117%
Mortlake Racecourse	15.4	-0.5	21.4	28th	6.5	+0.8	0.3	27th	47.8	57.5	average	83%
Port Fairy AWS	16.3	-0.4	23.3	28th	9.2	+0.9	2.7	27th	71.6	67.3	average	106%
Portland Airport	15.1	-0.2	21.0	28th	8.7	+1.2	0.2	27th	115.0	86.5	high	133%
Warrnambool Airport NDB	15.8	-0.3	22.2	28th	7.6	+0.8	0.5	27th	89.4	73.8	high	121%

Extremes Maps Records Summaries Important notes the top

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Notes

The Monthly climate summary, usually published in the first week of the following month, lists 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.

This statement has been prepared based on information available at 12 pm on Tuesday 1 October 2024. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

In some situations, some or all of the rainfall is in the form of hail or snow. In these cases the totals given are for the water equivalent: the depth of liquid water that results from melting any frozen precipitation. There can be significant 'undercatch' of snow in strong winds, meaning the true precipitation can be higher than that reported.

Averages for individual sites 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.

Where temperature area averages are mentioned, they are derived from the ACORN-SAT dataset.

Information about Australian Indigenous seasonal calendars is available at the Indigenous Weather Knowledge website.

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