Onslow Airport Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
36.5 36.3 36.2 34.0 29.4 26.1 25.6 27.5 30.3 33.0 34.4 36.0 32.1
Mean Min (°C)
24.5 25.1 24.4 21.6 17.4 14.4 13.1 13.8 15.7 18.0 20.2 22.5 19.2
Mean Rain (mm)
36.8 59.8 61.7 13.7 50.9 45.3 18.0 8.5 1.6 0.7 2.6 3.2 307.0
Median Rain (mm)
3.9 19.7 19.7 1.8 14.8 28.6 6.3 2.9 0.2 0.0 0.0 0.0 292.0
Mean Rain Days
3.4 4.4 3.5 2.3 4.5 5.2 3.8 3.0 1.1 0.6 0.5 0.9 33.7

Onslow Airport Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
50.7 48.1 47.2 43.4 38.8 33.5 33.4 37.7 41.7 46.0 44.8 49.2 50.7
Low Max (°C)
24.0 24.9 23.1 21.3 16.2 17.0 16.0 17.4 21.9 25.3 21.7 26.1 16.0
High Min (°C)
32.0 31.4 32.0 28.7 25.1 23.3 21.9 23.2 23.9 26.9 28.3 31.4 32.0
Low Min (°C)
16.3 18.2 16.0 11.8 7.5 3.5 4.0 5.1 8.4 11.5 13.1 16.4 3.5
High Rain (mm)
238.4 274.1 312.2 82.6 106.9 94.0 81.6 61.5 15.0 10.2 27.7 41.0 312.2

Onslow Airport Monthly Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Mn. Max (°C)
39.4 39.3 39.0 38.2 32.6 28.9 29.1 30.5 33.5 38.6 38.3 38.9 33.9
Low Mn. Max (°C)
32.9 32.6 33.1 30.7 25.8 22.8 22.8 24.4 28.1 29.9 30.4 32.5 30.8
High Mn. Min (°C)
27.1 26.6 27.0 24.8 20.1 17.2 15.8 16.4 19.8 21.3 22.8 25.5 20.9
Low Mn. Min (°C)
22.0 21.9 22.0 18.7 14.8 11.0 10.1 10.7 13.2 15.5 18.2 20.0 17.5
High Rain (mm)
275.6 358.6 368.4 163.4 310.4 230.8 115.4 81.8 24.7 15.0 60.2 54.0 1085.1
Low Rain (mm)
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 26.0

Onslow Airport Annual Temperatures & Rainfall

Onslow Airport annual climate

Onslow Airport Average Number of Days With Temperatures

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
≥ 40°C
6.5 5.1 4.7 0.8 0.0 0.0 0.0 0.0 0.1 1.3 2.9 5.9 26.8
≥ 35°C
18.3 17.1 19.6 11.0 1.2 0.0 0.0 0.2 2.3 9.5 12.5 17.4 107.9
≥ 30°C
30.1 27.3 29.9 27.4 13.7 1.6 1.1 5.2 15.1 23.7 25.8 29.2 227.7
≤ 2°C
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
≤ 0°C
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

Onslow Airport 'per Week' Values (14th/86th Percentiles)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max
41.6 40.7 40.0 37.1 32.3 28.6 27.6 29.9 33.2 37.0 38.9 40.6 37.7
Low Max
32.0 32.3 32.5 30.6 26.0 23.3 22.9 24.5 27.0 28.4 29.9 31.3 26.0
High Min
26.7 27.0 26.3 23.9 20.4 17.8 16.3 16.1 17.6 20.2 22.3 24.8 24.6
Low Min
21.7 22.7 21.7 18.5 14.0 10.7 9.5 10.7 13.0 15.2 17.5 19.6 13.0

Onslow Airport Data Availability

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Years of Minima
56 58 58 57 57 57 59 59 59 58 57 57 57.0
Earliest Entry
1944 1944 1944 1944 1944 1943 1943 1943 1943 1943 1943 1943 1943
Latest Entry
2024 2024 2024 2024 2024 2024 2024 2024 2024 2024 2023 2023 2024
Years of Maxima
57 58 58 57 58 58 59 59 59 58 57 57 57.0
Earliest Entry
1944 1944 1944 1944 1943 1943 1943 1940 1943 1943 1943 1943 1940
Latest Entry
2024 2024 2024 2024 2024 2024 2024 2024 2024 2024 2023 2023 2024
Years of Rainfall
54 55 55 53 52 53 51 53 59 58 59 56 51.0
Earliest Entry
1941 1941 1941 1941 1941 1941 1941 1940 1940 1940 1940 1940 1940
Latest Entry
2024 2024 2024 2024 2024 2024 2024 2024 2024 2024 2023 2023 2024

Station Details

ONSLOW AIRPORT
Pilbara, Western Australia
21.6689°S 115.1092°E 11m AMSL
Commenced 1940

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