Average annual temperature is 14.4 °C
Absolute maximum temperature: 37.2 °C
Absolute minimum temperature: -7.6 °C
Number of sunny days: 186 days
Number of rainy days: 176 days
Number of snow days: 3 days
Look at detailed online map of Harper
* Weather data for Harper 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) | 19.2 | 24.6 | 24.5 | 28.4 | 27.9 | 31.7 | 37.2 | 36.0 | 33.7 | 29.8 | 25.9 | 19.1 |
| Average daytime temperature (°C) | 11.0 | 14.1 | 14.5 | 20.5 | 23.6 | 27.2 | 31.6 | 30.0 | 27.3 | 21.4 | 15.0 | 11.7 |
| Average temperature (°C) | 5.6 | 7.6 | 7.8 | 13.5 | 17.1 | 20.9 | 25.1 | 23.7 | 20.8 | 15.4 | 8.4 | 6.0 |
| Average night temperature (°C) | 2.1 | 2.9 | 2.8 | 7.7 | 11.6 | 15.4 | 19.8 | 18.6 | 15.4 | 10.7 | 3.8 | 2.3 |
| Absolute minimum temperature (°C) | -6.1 | -7.6 | -7.6 | 0.5 | 3.0 | 9.6 | 15.7 | 12.7 | 11.4 | 3.9 | -6.2 | -6.2 |
| 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) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.5 | 13.6 | 12.4 | 11.2 | 10.2 | 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) | 4.8 | 7.3 | 7.8 | 9.6 | 10.5 | 11.5 | 11.8 | 10.7 | 10.1 | 8.1 | 7.4 | 5.8 |
| Precipitation (mm) | 115 | 112 | 86 | 69 | 54 | 83 | 65 | 98 | 40 | 50 | 55 | 82 |
| Sunny days | 11 | 16 | 18 | 19 | 16 | 16 | 8 | 12 | 15 | 17 | 20 | 18 |
| Rainy days | 18 | 12 | 12 | 11 | 15 | 14 | 23 | 19 | 15 | 14 | 10 | 13 |
| Snow days | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Harper during the most sunny months:
The largest precipitation sum in Harper is at