Average annual temperature is 18.5 °C
Absolute maximum temperature: 45.0 °C
Absolute minimum temperature: -1.3 °C
Number of sunny days: 303 days
Number of rainy days: 59 days
Number of snow days: 3 days
Look at detailed online map of Fort Irwin
* Weather data for Fort Irwin United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 14.9 | 20.5 | 21.7 | 34.0 | 35.4 | 37.9 | 45.0 | 40.8 | 37.6 | 33.2 | 27.2 | 20.3 |
| Average daytime temperature (°C) | 11.7 | 14.3 | 15.5 | 25.6 | 29.2 | 31.9 | 40.4 | 36.1 | 31.5 | 26.7 | 18.7 | 16.0 |
| Average temperature (°C) | 7.2 | 8.6 | 9.6 | 18.5 | 21.7 | 24.1 | 33.2 | 29.5 | 24.6 | 20.2 | 13.2 | 10.6 |
| Average night temperature (°C) | 3.3 | 3.6 | 5.2 | 11.5 | 14.6 | 16.7 | 25.2 | 22.8 | 18.5 | 14.1 | 7.8 | 5.7 |
| Absolute minimum temperature (°C) | -0.8 | -1.3 | 0.9 | 1.2 | 7.4 | 12.1 | 18.8 | 17.9 | 13.1 | 5.4 | 2.2 | 1.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.2 | 8.9 | 9.6 | 12.0 | 12.8 | 13.1 | 13.2 | 11.5 | 10.8 | 10.4 | 9.0 | 8.2 |
| Precipitation (mm) | 50 | 13 | 39 | 0 | 0 | 7 | 0 | 52 | 53 | 0 | 10 | 4 |
| Sunny days | 17 | 22 | 17 | 30 | 27 | 25 | 30 | 26 | 25 | 31 | 28 | 25 |
| Rainy days | 14 | 4 | 13 | 0 | 4 | 5 | 1 | 5 | 5 | 0 | 2 | 6 |
| Snow days | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Fort Irwin is at