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Mount Isa Long-term Averages
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean Max (°C) |
36.6 | 35.5 | 34.5 | 32.1 | 28.0 | 25.1 | 24.9 | 27.6 | 31.6 | 35.0 | 36.7 | 37.4 | 32.0 |
| Mean Min (°C) |
23.8 | 23.2 | 21.8 | 18.4 | 13.9 | 10.0 | 8.7 | 10.1 | 14.3 | 18.5 | 21.5 | 23.1 | 17.3 |
| Mean Rain (mm) |
114.1 | 102.6 | 68.3 | 13.1 | 11.2 | 6.9 | 7.5 | 3.3 | 8.5 | 19.1 | 39.5 | 66.7 | 467.0 |
| Median Rain (mm) |
72.8 | 85.6 | 38.0 | 1.8 | 3.7 | 0.0 | 0.0 | 0.4 | 0.4 | 8.6 | 25.2 | 49.4 | 421.2 |
| Mean Rain Days |
9.9 | 8.9 | 5.8 | 2.0 | 1.6 | 1.1 | 1.0 | 0.9 | 1.7 | 3.3 | 5.5 | 7.6 | 49.6 |
Mount Isa Daily Records
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High Max (°C) |
45.9 | 43.5 | 43.1 | 38.6 | 37.8 | 34.3 | 35.2 | 37.6 | 40.4 | 42.5 | 43.9 | 45.4 | 45.9 |
| Low Max (°C) |
22.8 | 23.1 | 21.1 | 17.0 | 15.6 | 9.4 | 10.1 | 14.1 | 14.8 | 19.1 | 19.1 | 20.4 | 9.4 |
| High Min (°C) |
31.6 | 30.1 | 29.3 | 27.3 | 24.0 | 20.3 | 20.1 | 21.3 | 26.6 | 28.2 | 31.4 | 30.7 | 31.6 |
| Low Min (°C) |
15.4 | 13.1 | 13.1 | 5.8 | 1.8 | -1.3 | -2.9 | -1.1 | 1.0 | 6.1 | 10.3 | 12.0 | -2.9 |
| High Rain (mm) |
213.0 | 148.8 | 153.8 | 44.6 | 106.4 | 54.8 | 78.4 | 26.6 | 70.3 | 39.2 | 102.4 | 115.0 | 213.0 |
Mount Isa Monthly Records
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High Mn. Max (°C) |
41.7 | 40.5 | 38.3 | 35.1 | 31.1 | 28.8 | 27.9 | 31.6 | 35.3 | 38.2 | 40.1 | 41.2 | 34.2 |
| Low Mn. Max (°C) |
30.0 | 31.3 | 30.2 | 26.9 | 24.2 | 20.4 | 22.6 | 24.9 | 27.6 | 31.9 | 32.7 | 31.6 | 29.9 |
| High Mn. Min (°C) |
26.2 | 25.5 | 24.4 | 20.9 | 17.7 | 13.9 | 12.9 | 13.8 | 17.8 | 21.7 | 24.1 | 25.8 | 19.3 |
| Low Mn. Min (°C) |
21.1 | 19.9 | 18.4 | 15.3 | 9.3 | 6.5 | 5.0 | 5.9 | 10.8 | 14.6 | 19.7 | 20.1 | 15.4 |
| High Rain (mm) |
535.2 | 278.2 | 276.6 | 167.8 | 176.4 | 111.8 | 84.2 | 41.8 | 117.0 | 91.4 | 205.6 | 275.2 | 1092.4 |
| Low Rain (mm) |
0.2 | 2.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 93.4 |
Mount Isa Annual Temperatures & Rainfall
Mount Isa Average Number of Days With Temperatures
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ≥ 40°C |
5.9 | 2.7 | 0.5 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.2 | 4.5 | 7.9 | 22.2 |
| ≥ 35°C |
21.9 | 16.5 | 14.9 | 4.7 | 0.2 | 0.0 | 0.0 | 0.4 | 5.6 | 17.1 | 22.3 | 24.4 | 127.1 |
| ≥ 30°C |
28.8 | 26.0 | 28.7 | 24.0 | 9.1 | 2.0 | 1.9 | 8.2 | 21.2 | 28.0 | 28.4 | 29.7 | 234.4 |
| ≤ 2°C |
0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.6 | 1.5 | 0.7 | 0.1 | 0.0 | 0.0 | 0.0 | 2.9 |
| ≤ 0°C |
0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.4 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.6 |
Mount Isa 'per Week' Values (14th/86th Percentiles)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High Max |
40.0 | 39.0 | 37.0 | 34.7 | 31.2 | 28.5 | 28.4 | 31.2 | 35.3 | 38.0 | 39.8 | 40.5 | 37.9 |
| Low Max |
32.0 | 31.4 | 31.7 | 28.9 | 24.3 | 21.1 | 21.0 | 23.2 | 26.8 | 30.9 | 33.1 | 33.5 | 25.1 |
| High Min |
26.3 | 25.7 | 24.4 | 22.0 | 18.5 | 14.3 | 13.1 | 15.0 | 18.8 | 22.6 | 24.9 | 26.1 | 24.0 |
| Low Min |
21.3 | 21.2 | 18.6 | 15.0 | 9.4 | 5.6 | 4.0 | 5.6 | 9.8 | 14.3 | 17.9 | 20.2 | 9.3 |
Mount Isa Data Availability
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Years of Minima |
57 | 58 | 57 | 57 | 57 | 57 | 58 | 57 | 55 | 57 | 58 | 57 | 58.0 |
| Earliest Entry |
1967 | 1967 | 1967 | 1967 | 1967 | 1967 | 1967 | 1967 | 1967 | 1967 | 1967 | 1966 | 1966 |
| Latest Entry |
2025 | 2025 | 2025 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2025 |
| Years of Maxima |
58 | 58 | 57 | 57 | 57 | 57 | 58 | 57 | 56 | 57 | 58 | 57 | 58.0 |
| Earliest Entry |
1967 | 1967 | 1967 | 1967 | 1967 | 1967 | 1967 | 1967 | 1967 | 1967 | 1967 | 1966 | 1966 |
| Latest Entry |
2025 | 2025 | 2025 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2025 |
| Years of Rainfall |
59 | 58 | 57 | 58 | 58 | 58 | 58 | 58 | 58 | 58 | 58 | 57 | 58.0 |
| Earliest Entry |
1967 | 1967 | 1967 | 1967 | 1967 | 1967 | 1967 | 1967 | 1967 | 1967 | 1967 | 1966 | 1966 |
| Latest Entry |
2025 | 2025 | 2025 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2024 | 2025 |
Station Details
MOUNT ISA AERO
Northwest, Queensland
Northwest, Queensland
20.6778°S 139.4875°E
341m AMSL
Commenced 1966
Commenced 1966
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