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Williamtown Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
28.0 27.6 26.2 23.6 20.3 17.7 17.1 18.7 21.4 23.6 25.5 27.2 23.1
Mean Min (°C)
18.0 18.1 16.3 13.1 10.0 7.9 6.4 6.8 9.1 11.9 14.4 16.5 12.4
Mean Rain (mm)
98.9 117.7 123.0 111.5 116.6 129.7 72.2 67.9 61.7 75.4 86.6 80.5 1141.1
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
11.8 12.0 13.0 12.2 13.6 13.8 10.8 10.4 9.6 11.6 11.7 11.0 129.4

Williamtown Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
44.8 42.9 40.7 37.0 29.6 26.6 27.8 30.5 36.4 39.4 43.2 42.8 44.8
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)
25.7 26.9 23.5 21.7 18.9 16.3 15.2 15.6 18.2 21.2 22.4 24.1 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)
153.0 276.0 157.6 129.0 95.0 147.0 86.8 100.8 122.9 106.0 166.8 99.4 276.0

Williamtown Monthly Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Mn. Max (°C)
30.9 30.9 28.5 26.2 22.3 19.9 19.0 21.9 25.7 27.1 28.5 30.8 24.5
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)
19.8 20.2 19.2 16.3 12.9 12.2 9.0 9.4 11.6 14.4 16.8 18.8 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)
327.3 599.6 398.5 361.2 410.2 414.2 190.4 212.2 179.2 237.5 244.6 238.0 1793.7
Low Rain (mm)
2.2 5.6 2.2 4.4 5.0 14.6 0.0 0.0 0.4 1.0 6.8 14.2 541.0

Williamtown Annual Temperatures & Rainfall

WILLIAMTOWN RAAF

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

Williamtown Average Number of Days With Temperatures

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
≥ 40°C
0.5 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.4 1.1
≥ 35°C
2.9 1.6 0.5 0.0 0.0 0.0 0.0 0.0 0.1 0.4 1.6 2.3 9.2
≥ 30°C
8.8 6.9 4.6 0.8 0.0 0.0 0.0 0.1 1.0 3.1 5.3 8.0 37.8
≤ 2°C
0.0 0.0 0.0 0.0 0.1 0.5 2.0 1.3 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 0.2 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
63 63 63 63 63 63 63 64 65 65 65 65 63.6
Earliest Entry
1951 1951 1951 1951 1951 1951 1951 1950 1942 1942 1942 1942 1942
Latest Entry
2013 2013 2013 2013 2013 2013 2013 2013 2013 2013 2013 2013 2013
Years of Maxima
63 63 63 63 63 63 63 64 65 65 65 65 63.7
Earliest Entry
1951 1951 1951 1951 1951 1951 1951 1950 1942 1942 1942 1942 1942
Latest Entry
2013 2013 2013 2013 2013 2013 2013 2013 2013 2013 2013 2013 2013
Years of Rainfall
59 60 62 62 61 59 59 60 61 63 61 62 60.7
Earliest Entry
1944 1944 1943 1943 1943 1943 1943 1943 1942 1942 1942 1942 1942
Latest Entry
2013 2013 2013 2013 2013 2013 2013 2013 2013 2013 2013 2013 2013

Station Details

WILLIAMTOWN RAAF
Hunter, New South Wales/ACT
32.7932°S 151.8359°E 9m AMSL
Commenced 1942

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