Average annual temperature is 14.9 °C
Absolute maximum temperature: 40.0 °C
Absolute minimum temperature: -15.1 °C
Number of sunny days: 254 days
Number of rainy days: 104 days
Number of snow days: 7 days
Look at detailed online map of Irwin
* Weather data for 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) | 19.4 | 21.8 | 25.6 | 30.9 | 33.3 | 38.5 | 40.0 | 38.3 | 39.0 | 28.9 | 27.4 | 21.7 |
| Average daytime temperature (°C) | 10.3 | 13.8 | 16.7 | 23.1 | 26.3 | 29.0 | 34.2 | 34.4 | 30.7 | 22.1 | 16.2 | 11.7 |
| Average temperature (°C) | 3.5 | 4.8 | 8.4 | 14.1 | 19.0 | 21.8 | 26.7 | 27.2 | 23.6 | 15.1 | 8.8 | 4.9 |
| Average night temperature (°C) | -1.4 | -1.4 | 1.9 | 7.0 | 13.1 | 16.0 | 20.2 | 20.4 | 17.5 | 9.3 | 3.3 | 0.4 |
| Absolute minimum temperature (°C) | -15.1 | -10.9 | -5.9 | -2.9 | 6.9 | 10.6 | 16.3 | 16.9 | 12.3 | -6.0 | -4.9 | -5.5 |
| 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) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.7 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.6 | 8.9 | 9.9 | 11.1 | 10.6 | 11.7 | 12.4 | 12.0 | 10.4 | 9.6 | 8.2 | 7.8 |
| Precipitation (mm) | 12 | 15 | 7 | 36 | 105 | 73 | 49 | 13 | 29 | 38 | 3 | 54 |
| Sunny days | 25 | 22 | 25 | 23 | 9 | 12 | 16 | 27 | 21 | 24 | 26 | 24 |
| Rainy days | 4 | 4 | 5 | 7 | 22 | 18 | 15 | 4 | 9 | 7 | 3 | 6 |
| Snow days | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
The largest precipitation sum in Irwin is at