Williamstown Long-term Averages

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
Mean Max (°C)	-	-	-	-	-	-	-	-	-	-	-	-	-
Mean Min (°C)	-	-	-	-	-	-	-	-	-	-	-	-	-
Mean Rain (mm)	23.2	21.5	24.7	51.5	76.2	96.9	92.3	91.3	72.0	58.1	38.0	30.5	678.6
Median Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-
Mean Rain Days	3.3	3.0	3.9	6.6	9.9	12.2	13.5	13.4	10.4	8.7	5.8	4.6	95.3

Williamstown Daily Records

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
High Max (°C)	-	-	-	-	-	-	-	-	-	-	-	-	-
Low Max (°C)	-	-	-	-	-	-	-	-	-	-	-	-	-
High Min (°C)	-	-	-	-	-	-	-	-	-	-	-	-	-
Low Min (°C)	-	-	-	-	-	-	-	-	-	-	-	-	-
High Rain (mm)	74.7	80.3	59.2	123.7	80.0	96.0	55.1	65.2	84.4	82.3	61.0	94.6	123.7

Williamstown Monthly Records

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
High Mn. Max (°C)	-	-	-	-	-	-	-	-	-	-	-	-	-
Low Mn. Max (°C)	-	-	-	-	-	-	-	-	-	-	-	-	-
High Mn. Min (°C)	-	-	-	-	-	-	-	-	-	-	-	-	-
Low Mn. Min (°C)	-	-	-	-	-	-	-	-	-	-	-	-	-
High Rain (mm)	120.2	117.5	170.6	277.2	237.7	286.1	210.5	209.8	230.1	176.8	159.8	169.2	1194.8
Low Rain (mm)	0.0	0.0	0.0	0.8	1.8	9.2	15.3	6.4	7.6	0.0	0.0	0.0	310.5

Williamstown Annual Temperatures & Rainfall

Williamstown Average Number of Days With Temperatures

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
≥ 40°C	-	-	-	-	-	-	-	-	-	-	-	-	-
≥ 35°C	-	-	-	-	-	-	-	-	-	-	-	-	-
≥ 30°C	-	-	-	-	-	-	-	-	-	-	-	-	-
≤ 2°C	-	-	-	-	-	-	-	-	-	-	-	-	-
≤ 0°C	-	-	-	-	-	-	-	-	-	-	-	-	-

Williamstown 'per Week' Values (14th/86th Percentiles)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
High Max	-	-	-	-	-	-	-	-	-	-	-	-	-
Low Max	-	-	-	-	-	-	-	-	-	-	-	-	-
High Min	-	-	-	-	-	-	-	-	-	-	-	-	-
Low Min	-	-	-	-	-	-	-	-	-	-	-	-	-

Williamstown Data Availability

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
Years of Minima	-	-	-	-	-	-	-	-	-	-	-	-	-
Earliest Entry	-	-	-	-	-	-	-	-	-	-	-	-	-
Latest Entry	-	-	-	-	-	-	-	-	-	-	-	-	-
Years of Maxima	-	-	-	-	-	-	-	-	-	-	-	-	-
Earliest Entry	-	-	-	-	-	-	-	-	-	-	-	-	-
Latest Entry	-	-	-	-	-	-	-	-	-	-	-	-	-
Years of Rainfall	140	142	140	139	138	136	134	139	133	139	139	139	139.0
Earliest Entry	1884	1881	1884	1884	1884	1884	1884	1884	1884	1884	1884	1884	1881
Latest Entry	2024	2024	2024	2024	2023	2023	2023	2023	2023	2023	2023	2023	2024

Station Details

WILLIAMSTOWN
Mount Lofty Ranges, South Australia

34.6508°S 138.8780°E 260m AMSL
Commenced 1880

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400km line of severe thunderstorms lashing southwest WA

10:42 AEST A line of severe thunderstorms is moving onshore towards the southwest of WA, which could produce heavy rainfall and large hail on Thursday morning.