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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) |
24.6 | 25.1 | 24.4 | 21.6 | 17.4 | 14.4 | 13.1 | 13.8 | 15.7 | 18.1 | 20.2 | 22.6 | 19.2 |
| Mean Rain (mm) |
39.6 | 58.9 | 61.7 | 13.7 | 50.9 | 45.3 | 18.0 | 8.5 | 1.6 | 0.7 | 2.6 | 3.2 | 303.1 |
| 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 |
3.5 | 4.5 | 3.5 | 2.3 | 4.5 | 5.2 | 3.8 | 3.0 | 1.1 | 0.6 | 0.5 | 0.9 | 33.8 |
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 | 32.1 | 28.7 | 25.1 | 23.3 | 21.9 | 23.2 | 23.9 | 26.9 | 28.3 | 31.4 | 32.1 |
| 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 | 27.3 | 27.0 | 24.8 | 20.1 | 17.2 | 15.8 | 16.4 | 19.8 | 21.3 | 22.9 | 26.5 | 21.2 |
| 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 Average Number of Days With Temperatures
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ≥ 40°C |
6.4 | 5.2 | 4.7 | 0.8 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 1.3 | 2.9 | 5.9 | 26.8 |
| ≥ 35°C |
18.4 | 17.2 | 19.6 | 11.0 | 1.2 | 0.0 | 0.0 | 0.2 | 2.3 | 9.6 | 12.5 | 17.6 | 108.4 |
| ≥ 30°C |
30.1 | 27.3 | 29.9 | 27.4 | 13.7 | 1.6 | 1.1 | 5.2 | 15.1 | 23.7 | 25.9 | 29.2 | 228.4 |
| ≤ 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 |
57 | 59 | 58 | 57 | 57 | 57 | 59 | 59 | 59 | 59 | 58 | 58 | 58.0 |
| Earliest Entry |
1944 | 1944 | 1944 | 1944 | 1944 | 1943 | 1943 | 1943 | 1943 | 1943 | 1943 | 1943 | 1943 |
| Latest Entry |
2025 | 2025 | 2025 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2025 |
| Years of Maxima |
58 | 59 | 58 | 57 | 58 | 58 | 59 | 59 | 59 | 59 | 58 | 58 | 58.0 |
| Earliest Entry |
1944 | 1944 | 1944 | 1944 | 1943 | 1943 | 1943 | 1940 | 1943 | 1943 | 1943 | 1943 | 1940 |
| Latest Entry |
2025 | 2025 | 2025 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2025 |
| Years of Rainfall |
55 | 56 | 55 | 53 | 52 | 53 | 51 | 53 | 59 | 59 | 60 | 57 | 52.0 |
| Earliest Entry |
1941 | 1941 | 1941 | 1941 | 1941 | 1941 | 1941 | 1940 | 1940 | 1940 | 1940 | 1940 | 1940 |
| Latest Entry |
2025 | 2025 | 2025 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2025 |
Station Details
ONSLOW AIRPORT
Pilbara, Western Australia
Pilbara, Western Australia
21.6689°S 115.1092°E
11m AMSL
Commenced 1940
Commenced 1940
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