Northam Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
34.3 33.7 30.7 26.1 21.4 18.0 17.0 18.0 20.6 24.2 28.6 32.2 25.4
Mean Min (°C)
17.2 17.3 15.5 12.0 8.4 6.5 5.4 5.7 6.9 9.0 12.5 15.4 10.9
Mean Rain (mm)
12.1 14.2 19.3 23.1 54.8 76.9 81.7 60.3 35.3 24.5 12.7 8.7 429.3
Median Rain (mm)
1.2 3.5 7.6 17.3 50.9 73.8 71.6 56.2 33.0 19.9 8.8 2.8 416.8
Mean Rain Days
1.9 2.2 3.1 5.4 10.4 14.2 16.1 13.9 10.7 7.1 4.0 2.3 92.2

Northam Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
46.3 48.1 43.9 39.5 35.2 27.2 25.2 29.7 34.7 40.0 44.1 45.6 48.1
Low Max (°C)
17.4 15.7 15.4 13.8 10.0 10.0 10.0 8.9 8.3 12.2 13.2 16.1 8.3
High Min (°C)
28.9 29.8 27.3 24.4 20.0 16.1 15.6 14.7 16.7 21.7 25.6 26.6 29.8
Low Min (°C)
7.3 7.9 4.9 0.6 -2.3 -3.9 -3.2 -1.7 -1.4 -0.3 2.1 4.5 -3.9
High Rain (mm)
101.6 115.6 126.2 74.7 68.5 67.1 53.8 36.3 33.6 59.8 34.3 49.5 126.2

Northam Monthly Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Mn. Max (°C)
37.9 38.2 34.4 29.5 25.1 20.9 19.1 21.0 24.7 29.0 32.9 36.8 27.6
Low Mn. Max (°C)
30.2 30.3 25.9 22.1 18.7 15.3 14.8 15.9 17.6 20.8 24.2 28.3 23.4
High Mn. Min (°C)
19.9 20.8 18.0 15.2 12.1 10.4 8.6 8.7 10.1 12.4 15.6 18.4 12.8
Low Mn. Min (°C)
15.0 15.2 12.5 9.1 4.8 2.8 1.9 2.3 4.1 6.4 9.7 11.4 9.7
High Rain (mm)
135.4 189.8 188.9 99.2 148.3 232.9 221.3 170.0 102.4 89.1 85.7 65.8 710.9
Low Rain (mm)
0.0 0.0 0.0 0.0 1.0 5.6 13.6 3.1 2.6 0.0 0.0 0.0 194.1

Northam Annual Temperatures & Rainfall

Northam annual climate

Northam Average Number of Days With Temperatures

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
≥ 40°C
3.9 2.9 0.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 2.0 9.8
≥ 35°C
14.1 11.5 6.5 0.8 0.0 0.0 0.0 0.0 0.0 0.6 3.9 9.4 46.7
≥ 30°C
25.0 21.9 16.9 6.0 0.5 0.0 0.0 0.0 0.5 3.7 11.6 20.7 106.7
≤ 2°C
0.0 0.0 0.0 0.1 1.0 3.6 5.7 4.5 1.8 0.3 0.0 0.0 17.0
≤ 0°C
0.0 0.0 0.0 0.0 0.2 0.8 1.7 0.8 0.2 0.0 0.0 0.0 3.9

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

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max
39.5 39.1 36.2 31.1 25.0 20.6 19.2 20.7 24.3 29.2 34.4 37.8 34.4
Low Max
28.9 28.4 25.6 21.5 17.8 15.3 14.5 15.2 17.1 19.4 23.0 26.5 17.2
High Min
20.6 20.6 19.0 15.8 12.8 10.6 9.4 9.4 10.6 12.5 16.0 18.8 17.2
Low Min
13.9 13.9 11.8 8.3 4.4 2.3 1.6 2.0 3.3 5.1 8.9 11.9 4.5

Northam Data Availability

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Years of Minima
117 117 114 115 112 115 115 114 114 113 114 116 114.0
Earliest Entry
1907 1907 1907 1907 1907 1907 1907 1907 1907 1907 1907 1907 1907
Latest Entry
2024 2024 2024 2024 2024 2024 2024 2024 2024 2024 2024 2023 2024
Years of Maxima
116 117 115 116 114 115 113 113 114 113 114 115 113.0
Earliest Entry
1907 1907 1907 1907 1907 1907 1907 1907 1907 1907 1907 1907 1907
Latest Entry
2024 2024 2024 2024 2024 2024 2024 2024 2024 2024 2024 2023 2024
Years of Rainfall
130 128 124 121 118 118 118 117 118 120 122 125 117.0
Earliest Entry
1877 1877 1877 1891 1907 1907 1907 1907 1907 1877 1877 1877 1877
Latest Entry
2024 2024 2024 2024 2024 2024 2024 2024 2024 2024 2024 2023 2024

Station Details

NORTHAM
Central Wheatbelt, Western Australia
31.6508°S 116.6586°E 170m AMSL
Commenced 1877

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