Mount William Long-term Averages

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
Mean Max (°C)	21.2	20.1	17.3	12.5	8.3	5.8	5.0	5.9	9.0	12.6	15.8	18.1	12.6
Mean Min (°C)	10.2	9.5	8.4	6.0	3.6	1.8	1.0	1.1	2.3	3.9	6.3	7.8	5.1
Mean Rain (mm)	66.1	32.2	57.0	82.2	132.9	138.8	165.3	152.5	115.4	93.6	77.2	63.2	1163.8
Median Rain (mm)	46.8	35.4	30.4	79.0	119.2	107.8	156.0	123.4	86.8	56.4	73.2	99.4	1109.8
Mean Rain Days	9.3	11.3	15.3	18.2	22.4	23.2	24.3	24.2	20.8	17.2	15.5	12.1	211.6

Mount William Daily Records

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
High Max (°C)	36.6	36.6	32.2	26.1	18.0	13.4	12.1	16.1	20.8	27.0	32.1	36.1	36.6
Low Max (°C)	7.8	6.6	5.4	2.4	-0.2	-0.2	-0.4	-0.9	-0.5	2.2	0.0	3.8	-0.9
High Min (°C)	25.9	25.6	23.2	19.6	11.4	7.6	6.4	8.2	12.9	19.3	20.4	22.5	25.9
Low Min (°C)	0.9	1.0	-0.1	-1.2	-2.1	-2.6	-4.1	-3.8	-3.8	-3.3	-2.5	-0.5	-4.1
High Rain (mm)	134.6	40.8	45.8	62.8	60.6	49.2	70.0	49.0	78.6	61.8	58.4	70.0	134.6

Mount William Monthly Records

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
High Mn. Max (°C)	24.8	22.3	20.4	16.5	10.1	7.0	6.4	8.1	11.5	18.5	19.8	22.5	14.1
Low Mn. Max (°C)	19.0	16.9	14.5	9.5	6.8	4.0	3.7	3.6	6.8	10.1	11.3	14.7	11.8
High Mn. Min (°C)	12.6	12.1	11.2	8.0	5.6	3.2	2.0	2.9	4.4	7.6	10.8	10.7	5.9
Low Mn. Min (°C)	8.7	7.5	5.4	3.4	2.2	0.4	-0.2	0.1	0.9	2.2	4.1	5.6	4.6
High Rain (mm)	289.6	93.6	138.2	177.0	240.2	324.8	276.6	312.0	328.2	240.8	115.4	183.2	1511.6
Low Rain (mm)	2.6	2.8	16.0	22.8	88.0	4.8	9.8	0.0	49.6	11.4	29.2	0.0	794.4

Mount William Annual Temperatures & Rainfall

Mount William Average Number of Days With Temperatures

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
≥ 40°C	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
≥ 35°C	0.4	0.1	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.1	0.6
≥ 30°C	2.9	1.3	0.4	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.1	1.2	5.9
≤ 2°C	0.3	0.2	0.9	3.7	9.8	16.0	22.9	21.7	16.8	13.5	7.1	3.1	115.1
≤ 0°C	0.0	0.0	0.1	0.7	2.3	5.8	9.0	10.9	8.1	5.2	1.8	0.2	43.9

Mount William 'per Week' Values (14th/86th Percentiles)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
High Max	27.8	27.4	24.6	17.2	11.6	8.1	6.9	9.9	13.4	19.0	24.1	24.0	21.5
Low Max	14.3	13.3	10.9	6.9	5.0	2.9	2.4	3.1	4.4	6.0	9.3	11.1	4.7
High Min	16.8	16.0	14.0	9.7	6.5	3.8	2.5	3.8	5.0	8.4	13.7	13.4	11.4
Low Min	4.4	3.7	3.7	1.8	0.9	-0.5	-0.8	-0.9	-0.7	-0.4	1.7	2.3	0.2

Mount William Data Availability

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
Years of Minima	19	19	18	18	18	17	18	18	18	18	18	18	18.0
Earliest Entry	2006	2006	2006	2006	2006	2006	2006	2006	2006	2006	2006	2005	2005
Latest Entry	2024	2024	2024	2023	2023	2023	2023	2023	2023	2023	2023	2023	2024
Years of Maxima	19	19	18	18	18	17	18	18	18	18	18	18	18.0
Earliest Entry	2006	2006	2006	2006	2006	2006	2006	2006	2006	2006	2006	2005	2005
Latest Entry	2024	2024	2024	2023	2023	2023	2023	2023	2023	2023	2023	2023	2024
Years of Rainfall	19	19	18	18	18	17	18	18	18	18	17	18	18.0
Earliest Entry	2006	2006	2006	2006	2006	2006	2006	2006	2006	2006	2006	2005	2005
Latest Entry	2024	2024	2024	2023	2023	2023	2023	2023	2023	2023	2023	2023	2024

Station Details

GRAMPIANS (MOUNT WILLIAM)
South West, Victoria

37.2950°S 142.6039°E 1150m AMSL
Commenced 2005

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Weather News

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Winter is Coming: Chilly day for Sydney, rain pelts eastern seaboard

17:22 AEST Just as we forecast yesterday, a coastal trough has deepened along the NSW and southeast Qld coasts as a low in the Coral Sea continues to inch closer to Qld. The trough has brought some interesting weather to NSW in the past 36 hours or so, particularly along the coastal fringe, giving those New South Welshmen a “Stark” Game of Thrones reminder: winter is coming.