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Williamstown Climate

Williamstown Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
27.1 27.5 24.3 20.6 16.1 13.0 12.2 13.1 15.4 18.9 21.9 24.9 19.9
Mean Min (°C)
11.1 11.2 9.7 7.0 5.0 3.6 3.2 3.4 4.4 6.0 7.7 9.5 7.0
Mean Rain (mm)
27.0 22.2 29.0 47.0 70.4 90.8 112.2 91.4 79.8 58.1 38.0 38.3 691.9
Median Rain (mm)
20.4 11.8 15.8 41.2 61.6 78.4 95.3 83.7 58.0 42.1 33.6 29.0 638.5
Mean Rain Days
6.0 4.6 6.6 9.4 12.9 14.8 16.9 17.8 14.2 11.1 8.4 7.9 121.7

Williamstown Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
42.5 42.5 40.6 35.0 26.5 22.0 23.5 25.0 29.3 33.0 39.0 40.0 42.5
Low Max (°C)
14.4 15.6 13.2 9.6 8.0 6.0 5.8 7.0 8.0 7.1 10.4 11.7 5.8
High Min (°C)
26.5 28.5 26.0 22.5 18.9 13.9 16.0 12.0 19.0 21.0 23.0 23.0 28.5
Low Min (°C)
2.0 1.0 -2.2 -3.5 -5.0 -7.0 -7.0 -4.7 -4.0 -3.5 -2.0 0.1 -7.0
High Rain (mm)
40.1 102.9 65.2 40.1 58.7 53.3 53.0 71.4 35.6 64.5 40.1 49.0 102.9

Williamstown Monthly Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Mn. Max (°C)
31.2 30.6 27.6 23.6 17.9 15.4 14.5 15.5 17.2 21.4 25.7 28.1 21.3
Low Mn. Max (°C)
24.2 24.5 20.8 17.7 13.8 10.9 10.5 10.8 12.8 16.1 18.4 22.3 18.3
High Mn. Min (°C)
15.1 13.6 13.0 9.2 8.0 7.9 5.0 5.4 5.6 7.5 9.9 11.6 8.4
Low Mn. Min (°C)
8.5 9.3 7.0 5.5 3.1 0.6 1.8 1.3 2.6 4.2 6.3 7.6 5.8
High Rain (mm)
77.2 133.2 102.3 159.7 195.8 221.3 261.5 207.2 205.5 178.7 102.2 166.2 1231.7
Low Rain (mm)
0.6 0.0 0.0 3.0 17.0 15.2 10.4 19.5 22.4 4.2 0.3 2.8 315.0

Williamstown Annual Temperatures & Rainfall

MOUNT CRAWFORD FOREST HEADQUARTERS

Mean daily minimum temp
Mean daily maximum temp
Highest/lowest on record
Highest/lowest on record
Mean monthly rainfall

Williamstown Average Number of Days With Temperatures

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
≥ 40.0°C
0.6 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 1.0
≥ 35.0°C
3.8 3.4 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 1.7 10.2
≥ 30.0°C
9.8 10.4 5.5 1.1 0.0 0.0 0.0 0.0 0.0 0.5 3.0 7.1 37.0
≤ 2.0°C
0.1 0.1 1.0 3.7 7.4 9.7 10.8 9.6 7.9 5.0 2.0 0.8 56.1
≤ 0.0°C
0.0 0.0 0.1 1.0 3.5 5.5 6.6 5.5 4.1 1.6 0.6 0.0 27.6

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

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max
34.3 34.4 30.5 26.6 20.0 15.6 15.0 16.7 20.0 25.0 28.6 32.1 28.6
Low Max
20.6 21.0 18.5 15.5 12.7 10.5 10.0 10.0 11.2 13.5 15.8 18.3 12.1
High Min
15.6 15.5 14.0 11.5 9.5 8.0 7.1 7.0 8.5 10.0 12.0 13.4 12.0
Low Min
7.0 7.2 5.0 2.2 0.3 -1.0 -1.0 -0.8 0.0 1.7 3.5 5.5 1.5

Williamstown Data Availability

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Years of Minima
29 29 29 27 24 24 24 24 24 23 26 28 25.7
Earliest Entry
1967 1967 1967 1967 1967 1967 1967 1967 1967 1967 1967 1967 1967
Latest Entry
1995 1995 1995 1995 1994 1994 1994 1994 1994 1994 1994 1994 1995
Years of Maxima
29 29 29 27 24 24 25 24 24 24 26 28 25.8
Earliest Entry
1967 1967 1967 1967 1967 1967 1967 1967 1967 1967 1967 1967 1967
Latest Entry
1995 1995 1995 1995 1994 1994 1994 1994 1994 1994 1994 1994 1995
Years of Rainfall
33 33 33 32 31 30 30 30 30 30 32 32 31.2
Earliest Entry
1964 1964 1964 1964 1964 1964 1964 1964 1964 1964 1964 1964 1964
Latest Entry
1996 1996 2005 1996 1996 1996 1996 1995 1995 1995 1995 2001 2005

Station Details

MOUNT CRAWFORD FOREST HEADQUARTERS
Mount Lofty Ranges, South Australia
34.7122°S 138.9469°E 395m AMSL
Commenced 1954
Display Your Local Weather

Weather News

Shoalhaven Council defends its handling of floods

10:56 EST

Shoalhaven Council is staunchly defending its management of local waterways during floods across the region in August.

Producers urged to keep an eye out for poisonous pimelea

10:39 EST

Producers are being urged to keep a look out for Pimelea as there have been recent reports of the weed in parts of western and southern inland Queensland.

Drought-stricken Queensland endures dry, warm winter

10:29 EST

Queensland has just come out of a much warmer and drier winter than normal, with much of the drought-stricken state receiving almost no rain for the whole season, according to the Bureau of Meteorology (BoM).