Average annual temperature is 11.4 °C
Absolute maximum temperature: 36.2 °C
Absolute minimum temperature: -21.0 °C
Number of sunny days: 224 days
Number of rainy days: 119 days
Number of snow days: 22 days
Look at detailed online map of Harlan
* Weather data for Harlan 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) | 8.6 | 12.8 | 19.7 | 28.5 | 29.4 | 31.7 | 34.7 | 36.2 | 33.7 | 31.4 | 17.9 | 13.7 |
| Average daytime temperature (°C) | 0.6 | 4.6 | 7.8 | 17.8 | 24.9 | 29.1 | 28.7 | 28.6 | 26.7 | 17.7 | 11.0 | 6.2 |
| Average temperature (°C) | -3.6 | -1.7 | 1.4 | 10.5 | 18.4 | 23.2 | 23.1 | 23.7 | 21.0 | 12.7 | 5.5 | 1.7 |
| Average night temperature (°C) | -6.8 | -6.2 | -3.0 | 5.0 | 12.6 | 17.4 | 18.2 | 19.2 | 16.1 | 8.6 | 1.0 | -1.7 |
| Absolute minimum temperature (°C) | -21.0 | -20.9 | -12.8 | -5.1 | 2.2 | 9.2 | 11.2 | 12.5 | 10.5 | -5.7 | -9.0 | -5.8 |
| 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) | 9.6 | 10.6 | 11.9 | 13.3 | 14.5 | 15.1 | 14.9 | 13.8 | 12.5 | 11.1 | 9.9 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 4.6 | 7.3 | 8.0 | 9.4 | 11.6 | 12.7 | 11.5 | 11.3 | 10.1 | 7.6 | 6.9 | 4.9 |
| Precipitation (mm) | 48 | 75 | 41 | 32 | 60 | 37 | 84 | 90 | 39 | 49 | 5 | 47 |
| Sunny days | 18 | 18 | 19 | 17 | 18 | 17 | 16 | 17 | 21 | 16 | 24 | 23 |
| Rainy days | 6 | 7 | 9 | 11 | 13 | 13 | 15 | 14 | 9 | 14 | 4 | 4 |
| Snow days | 7 | 3 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 4 |
The best time to visit Harlan during the most sunny months:
The largest precipitation sum in Harlan is at