Average annual temperature is 13.2 °C
Absolute maximum temperature: 39.8 °C
Absolute minimum temperature: -23.4 °C
Number of sunny days: 227 days
Number of rainy days: 117 days
Number of snow days: 21 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) | 12.9 | 16.5 | 24.0 | 29.6 | 32.3 | 35.2 | 38.2 | 39.8 | 37.6 | 31.4 | 21.4 | 14.7 |
| Average daytime temperature (°C) | 2.7 | 7.6 | 11.4 | 20.7 | 25.7 | 30.3 | 31.7 | 33.0 | 29.7 | 21.0 | 14.1 | 7.6 |
| Average temperature (°C) | -2.4 | -0.5 | 4.4 | 12.8 | 19.4 | 23.8 | 25.6 | 26.4 | 23.1 | 14.5 | 7.6 | 2.6 |
| Average night temperature (°C) | -5.9 | -5.9 | -0.8 | 6.4 | 13.6 | 18.0 | 20.2 | 20.7 | 17.0 | 9.2 | 2.5 | -1.1 |
| Absolute minimum temperature (°C) | -23.4 | -20.1 | -8.3 | -3.9 | 3.3 | 13.5 | 14.6 | 14.1 | 10.2 | -6.1 | -5.2 | -5.6 |
| 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) | 9.7 | 10.7 | 12.0 | 13.3 | 14.4 | 14.9 | 14.7 | 13.7 | 12.5 | 11.2 | 10.0 | 9.4 |
| 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) | 6.3 | 8.3 | 8.5 | 10.3 | 10.9 | 12.1 | 12.1 | 12.1 | 10.3 | 8.6 | 7.5 | 5.2 |
| Precipitation (mm) | 40 | 35 | 22 | 7 | 59 | 90 | 54 | 73 | 5 | 32 | 27 | 61 |
| Sunny days | 21 | 22 | 20 | 22 | 13 | 15 | 9 | 21 | 22 | 22 | 23 | 17 |
| Rainy days | 4 | 5 | 7 | 6 | 18 | 15 | 22 | 10 | 8 | 8 | 4 | 10 |
| Snow days | 6 | 1 | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 4 |
The best time to visit Harlan during the most sunny months:
The largest precipitation sum in Harlan is at