Average annual temperature is 14.5 °C
Absolute maximum temperature: 35.7 °C
Absolute minimum temperature: -6.4 °C
Number of sunny days: 191 days
Number of rainy days: 174 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) | 18.7 | 25.7 | 26.0 | 28.5 | 28.7 | 32.1 | 34.1 | 35.7 | 33.0 | 28.1 | 25.7 | 19.2 |
| Average daytime temperature (°C) | 11.2 | 14.9 | 15.8 | 21.0 | 22.9 | 26.7 | 31.1 | 29.6 | 26.3 | 21.8 | 15.3 | 11.4 |
| Average temperature (°C) | 5.9 | 8.9 | 9.4 | 14.0 | 17.0 | 20.2 | 24.3 | 23.6 | 20.1 | 15.0 | 8.7 | 5.9 |
| Average night temperature (°C) | 1.9 | 4.5 | 4.2 | 7.5 | 11.8 | 14.8 | 18.5 | 18.5 | 15.3 | 9.5 | 3.5 | 1.7 |
| Absolute minimum temperature (°C) | -3.8 | -6.4 | -4.4 | 0.8 | 3.6 | 11.1 | 14.8 | 14.3 | 11.7 | 2.8 | -4.7 | -5.1 |
| 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) | 5.8 | 6.6 | 8.2 | 9.3 | 10.1 | 10.4 | 12.0 | 10.5 | 10.0 | 9.5 | 8.0 | 6.2 |
| Precipitation (mm) | 112 | 72 | 73 | 140 | 58 | 114 | 97 | 84 | 53 | 8 | 30 | 147 |
| Sunny days | 15 | 15 | 17 | 13 | 12 | 13 | 9 | 14 | 14 | 25 | 25 | 19 |
| Rainy days | 16 | 13 | 14 | 17 | 19 | 17 | 22 | 17 | 16 | 6 | 5 | 12 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Harley during the most sunny months:
The largest precipitation sum in Harley is at