Williamtown Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
28.3 27.7 26.4 23.7 20.4 17.7 17.2 18.8 21.5 23.8 25.6 27.4 23.2
Mean Min (°C)
18.2 18.2 16.5 13.2 10.1 8.0 6.5 6.9 9.2 12.0 14.5 16.6 12.4
Mean Rain (mm)
97.1 110.6 126.9 107.9 112.1 129.3 73.2 64.4 62.0 78.0 81.8 77.4 1124.2
Median Rain (mm)
74.5 91.3 114.2 85.3 99.2 103.3 55.2 50.0 49.8 56.0 81.8 61.4 1072.2
Mean Rain Days
11.7 12.2 13.4 12.3 13.6 13.7 10.8 10.1 9.8 11.8 11.5 11.0 140.7

Williamtown Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
45.5 45.5 40.7 37.0 29.6 26.6 27.8 30.5 36.4 39.4 43.2 43.7 45.5
Low Max (°C)
18.1 19.1 18.1 15.2 11.8 10.7 9.2 10.4 10.9 14.4 14.1 17.4 9.2
High Min (°C)
26.6 26.9 24.5 21.7 18.9 16.3 15.7 15.6 18.2 21.2 23.1 24.6 26.9
Low Min (°C)
9.4 9.6 8.6 2.1 -0.6 -1.8 -3.9 -1.9 0.4 3.0 5.1 7.9 -3.9
High Rain (mm)
225.0 276.0 157.6 156.0 95.0 147.0 133.0 100.8 122.9 128.8 166.8 99.4 276.0

Williamtown Monthly Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Mn. Max (°C)
33.3 31.0 29.0 26.3 23.1 19.9 19.5 21.9 25.7 27.1 28.6 30.8 25.3
Low Mn. Max (°C)
24.4 24.9 23.8 21.7 18.8 15.9 15.5 17.0 18.5 20.9 22.7 23.8 21.9
High Mn. Min (°C)
21.0 20.3 19.2 16.3 12.9 12.2 9.0 10.0 11.6 14.4 16.8 19.1 13.6
Low Mn. Min (°C)
16.1 16.0 14.0 11.0 6.9 5.6 2.5 4.5 7.2 10.2 11.9 14.8 11.2
High Rain (mm)
422.4 599.6 459.2 361.2 410.2 414.2 327.4 212.2 179.2 252.0 241.4 238.0 1793.7
Low Rain (mm)
2.2 5.6 2.2 4.4 5.0 8.8 0.0 0.0 0.4 1.0 6.8 0.8 541.0

Williamtown Annual Temperatures & Rainfall

Williamtown annual climate

Williamtown Average Number of Days With Temperatures

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
≥ 40°C
0.6 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.4 1.4
≥ 35°C
3.2 1.6 0.6 0.0 0.0 0.0 0.0 0.0 0.1 0.4 1.6 2.5 9.9
≥ 30°C
9.4 7.1 4.8 0.9 0.0 0.0 0.0 0.1 1.1 3.3 5.4 8.4 40.4
≤ 2°C
0.0 0.0 0.0 0.0 0.1 0.5 1.9 1.2 0.1 0.0 0.0 0.0 3.8
≤ 0°C
0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.1 0.0 0.0 0.0 0.0 0.6

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

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max
33.3 32.0 30.0 26.8 22.8 19.9 19.4 21.5 25.7 28.6 31.0 32.6 28.7
Low Max
23.5 23.6 23.0 20.7 17.7 15.4 14.8 15.8 17.2 18.9 20.6 22.4 17.3
High Min
20.7 20.7 19.2 16.6 13.5 11.0 9.4 10.0 12.6 15.5 17.8 19.4 18.3
Low Min
15.0 15.3 13.3 9.8 6.7 4.5 3.2 3.7 5.6 8.4 10.7 13.2 6.4

Williamtown Data Availability

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Years of Minima
74 74 74 74 74 74 74 75 75 76 75 75 73.0
Earliest Entry
1951 1951 1951 1951 1951 1951 1951 1950 1942 1942 1942 1942 1942
Latest Entry
2024 2024 2024 2024 2024 2024 2024 2024 2024 2024 2024 2023 2024
Years of Maxima
74 74 74 74 74 74 74 75 75 76 75 75 73.0
Earliest Entry
1951 1951 1951 1951 1951 1951 1951 1950 1942 1942 1942 1942 1942
Latest Entry
2024 2024 2024 2024 2024 2024 2024 2024 2024 2024 2024 2023 2024
Years of Rainfall
68 68 70 70 68 67 67 70 69 73 68 71 66.0
Earliest Entry
1944 1944 1943 1943 1943 1943 1943 1943 1942 1942 1942 1942 1942
Latest Entry
2024 2024 2024 2024 2024 2024 2024 2024 2024 2024 2024 2023 2024

Station Details

WILLIAMTOWN RAAF
Hunter, New South Wales/ACT
32.7939°S 151.8364°E 8m AMSL
Commenced 1942

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