Williamtown Climate

Williamtown Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
28.3 27.7 26.3 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 18.1 16.4 13.2 10.1 8.0 6.4 6.8 9.1 12.0 14.4 16.6 12.4
Mean Rain (mm)
98.2 109.7 125.1 106.1 109.4 132.1 69.5 65.1 62.4 78.5 80.5 79.3 1116.6
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 12.1 13.2 12.1 13.5 13.9 10.6 10.0 9.7 11.6 11.4 10.9 139.6

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 23.5 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 28.5 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 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)
422.4 599.6 459.2 361.2 410.2 414.2 242.6 212.2 179.2 252.0 241.4 238.0 1793.7
Low Rain (mm)
2.2 5.6 2.2 4.4 5.0 14.6 0.0 0.0 0.4 1.0 6.8 0.8 541.0

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
≥ 40.0°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
≥ 35.0°C
3.2 1.6 0.5 0.0 0.0 0.0 0.0 0.0 0.1 0.4 1.6 2.5 10.1
≥ 30.0°C
9.4 7.0 4.8 0.9 0.0 0.0 0.0 0.1 1.0 3.3 5.5 8.4 40.7
≤ 2.0°C
0.0 0.0 0.0 0.0 0.1 0.5 1.9 1.3 0.1 0.0 0.0 0.0 3.9
≤ 0.0°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
71 71 71 71 71 71 71 72 72 72 72 72 70.0
Earliest Entry
1951 1951 1951 1951 1951 1951 1951 1950 1942 1942 1942 1942 1942
Latest Entry
2021 2021 2021 2021 2021 2021 2021 2021 2021 2021 2020 2020 2021
Years of Maxima
71 71 71 71 71 71 71 72 72 72 72 72 70.0
Earliest Entry
1951 1951 1951 1951 1951 1951 1951 1950 1942 1942 1942 1942 1942
Latest Entry
2021 2021 2021 2021 2021 2021 2021 2021 2021 2021 2020 2020 2021
Years of Rainfall
65 65 67 67 65 64 64 67 66 69 65 68 63.0
Earliest Entry
1944 1944 1943 1943 1943 1943 1943 1943 1942 1942 1942 1942 1942
Latest Entry
2021 2021 2021 2021 2021 2021 2021 2021 2021 2021 2020 2020 2021

Station Details

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

Weather News

Some say La Nina is already here

16:18 EDT

While Australia's Bureau of Meteorology says that there is a 70 percent chance of La Niña developing later this year, the U.S.

Three maps which explain this week's severe thunderstorms over NSW and QLD

12:17 EDT

Eastern Australia has been hit by several days of severe weather this week, including multiple supercell thunderstorms.

Get a sneak peak into the new Weatherzone Beta website experience while we continue to build out its full functionality.
Explore new datasets, map layers, 7-day charts, 12-month trends and much more!