Average annual temperature is 12.7 °C
Absolute maximum temperature: 35.1 °C
Absolute minimum temperature: -12.0 °C
Number of sunny days: 179 days
Number of rainy days: 174 days
Number of snow days: 12 days
Look at detailed online map of Harley
* Weather data for Harley 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) | 17.8 | 18.8 | 19.6 | 27.2 | 31.6 | 33.2 | 34.9 | 35.1 | 32.8 | 30.2 | 23.7 | 15.2 |
| Average daytime temperature (°C) | 5.9 | 9.5 | 10.2 | 18.4 | 24.1 | 28.3 | 29.2 | 27.7 | 26.0 | 19.0 | 12.0 | 8.5 |
| Average temperature (°C) | 2.1 | 3.3 | 4.5 | 11.3 | 17.7 | 21.8 | 23.6 | 22.6 | 20.4 | 14.1 | 6.4 | 4.5 |
| Average night temperature (°C) | -0.6 | -1.0 | 0.1 | 5.5 | 11.7 | 15.9 | 18.6 | 18.0 | 15.3 | 10.0 | 2.0 | 1.6 |
| Absolute minimum temperature (°C) | -11.1 | -12.0 | -8.6 | -2.9 | 2.2 | 9.9 | 14.0 | 11.9 | 9.7 | -3.0 | -9.1 | -7.0 |
| 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 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 11.9 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.3 |
| 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) | 3.5 | 7.4 | 6.5 | 8.9 | 10.4 | 11.2 | 12.3 | 10.9 | 9.8 | 7.1 | 7.6 | 4.3 |
| Precipitation (mm) | 80 | 94 | 148 | 81 | 57 | 39 | 86 | 112 | 42 | 108 | 19 | 59 |
| Sunny days | 6 | 16 | 14 | 15 | 17 | 17 | 9 | 16 | 17 | 15 | 23 | 14 |
| Rainy days | 19 | 11 | 15 | 14 | 14 | 13 | 22 | 15 | 13 | 16 | 6 | 16 |
| Snow days | 6 | 1 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
The best time to visit Harley during the most sunny months:
The largest precipitation sum in Harley is at