Average annual temperature is 14.5 °C
Absolute maximum temperature: 35.3 °C
Absolute minimum temperature: -7.6 °C
Number of sunny days: 176 days
Number of rainy days: 180 days
Number of snow days: 9 days
Look at detailed online map of Letcher County
* Weather data for Letcher County 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) | 19.5 | 24.8 | 24.3 | 28.4 | 28.0 | 31.6 | 35.3 | 34.8 | 31.9 | 28.8 | 24.7 | 18.2 |
| Average daytime temperature (°C) | 12.0 | 14.5 | 15.1 | 20.8 | 23.7 | 26.7 | 30.9 | 28.4 | 26.2 | 21.2 | 15.8 | 11.9 |
| Average temperature (°C) | 6.6 | 8.6 | 8.7 | 13.9 | 17.4 | 20.6 | 24.7 | 22.9 | 20.0 | 15.0 | 8.8 | 6.3 |
| Average night temperature (°C) | 3.0 | 3.9 | 3.6 | 8.4 | 12.2 | 15.1 | 19.7 | 18.5 | 14.6 | 9.6 | 3.7 | 2.2 |
| Absolute minimum temperature (°C) | -7.0 | -7.6 | -6.9 | 0.6 | 4.0 | 8.8 | 14.3 | 12.7 | 9.3 | 2.4 | -5.6 | -6.9 |
| 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 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.4 | 13.6 | 12.4 | 11.2 | 10.2 | 9.7 |
| 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) | 4.9 | 6.6 | 7.8 | 9.6 | 10.2 | 11.2 | 11.7 | 10.0 | 10.3 | 7.9 | 7.5 | 5.6 |
| Precipitation (mm) | 110 | 105 | 74 | 74 | 114 | 45 | 43 | 141 | 50 | 32 | 52 | 110 |
| Sunny days | 11 | 16 | 17 | 17 | 14 | 16 | 10 | 9 | 14 | 19 | 19 | 14 |
| Rainy days | 18 | 11 | 12 | 13 | 17 | 14 | 21 | 22 | 16 | 12 | 9 | 15 |
| Snow days | 2 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 |
The best time to visit Letcher County during the most sunny months:
The largest precipitation sum in Letcher County is at