Average annual temperature is 14.4 °C
Absolute maximum temperature: 35.9 °C
Absolute minimum temperature: -7.7 °C
Number of sunny days: 185 days
Number of rainy days: 178 days
Number of snow days: 2 days
Look at detailed online map of Grahn
* Weather data for Grahn 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) | 19.3 | 24.9 | 24.4 | 29.2 | 28.9 | 32.8 | 35.9 | 35.8 | 34.5 | 30.8 | 26.6 | 19.5 |
| Average daytime temperature (°C) | 10.6 | 14.2 | 14.3 | 20.7 | 24.1 | 27.6 | 31.6 | 30.5 | 27.8 | 21.3 | 14.7 | 11.5 |
| Average temperature (°C) | 5.4 | 7.4 | 7.6 | 13.6 | 17.3 | 21.4 | 25.2 | 24.1 | 21.1 | 15.3 | 8.2 | 5.9 |
| Average night temperature (°C) | 1.9 | 2.6 | 2.5 | 7.7 | 11.7 | 15.9 | 20.1 | 18.9 | 15.6 | 10.6 | 3.7 | 2.3 |
| Absolute minimum temperature (°C) | -5.9 | -7.4 | -7.7 | 0.7 | 4.1 | 11.1 | 16.4 | 13.0 | 11.1 | 4.0 | -6.0 | -4.9 |
| 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 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.8 | 12.0 | 13.2 | 14.2 | 14.8 | 14.5 | 13.6 | 12.4 | 11.2 | 10.1 | 9.6 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 4.6 | 7.3 | 7.5 | 9.9 | 9.9 | 11.3 | 11.8 | 10.2 | 10.1 | 7.9 | 7.3 | 5.5 |
| Precipitation (mm) | 86 | 81 | 94 | 51 | 64 | 86 | 50 | 73 | 36 | 47 | 46 | 90 |
| Sunny days | 11 | 15 | 16 | 16 | 17 | 15 | 8 | 17 | 16 | 16 | 22 | 16 |
| Rainy days | 19 | 13 | 14 | 14 | 14 | 15 | 23 | 14 | 14 | 15 | 8 | 15 |
| Snow days | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Grahn during the most sunny months:
The largest precipitation sum in Grahn is at