Average annual temperature is 11.4 °C
Absolute maximum temperature: 35.3 °C
Absolute minimum temperature: -20.9 °C
Number of sunny days: 223 days
Number of rainy days: 121 days
Number of snow days: 21 days
Look at detailed online map of Adair County
* Weather data for Adair 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) | 10.5 | 14.0 | 22.2 | 27.0 | 29.3 | 31.9 | 34.1 | 35.3 | 33.8 | 30.7 | 18.2 | 14.2 |
| Average daytime temperature (°C) | 1.1 | 5.1 | 8.1 | 17.2 | 24.3 | 28.5 | 28.4 | 28.4 | 26.6 | 17.9 | 10.7 | 6.5 |
| Average temperature (°C) | -3.2 | -1.3 | 1.8 | 10.2 | 17.9 | 22.6 | 23.0 | 23.5 | 20.7 | 12.8 | 5.2 | 2.1 |
| Average night temperature (°C) | -6.5 | -5.9 | -2.5 | 4.7 | 12.0 | 17.0 | 18.3 | 19.1 | 15.7 | 8.7 | 0.9 | -1.1 |
| Absolute minimum temperature (°C) | -20.9 | -20.2 | -13.0 | -5.3 | 2.8 | 8.6 | 12.3 | 13.0 | 9.9 | -5.1 | -10.2 | -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 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.3 |
| 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 | 7.4 | 7.3 | 9.3 | 11.4 | 12.4 | 11.5 | 11.5 | 10.6 | 7.7 | 7.1 | 4.9 |
| Precipitation (mm) | 44 | 48 | 49 | 41 | 43 | 88 | 107 | 77 | 21 | 49 | 7 | 48 |
| Sunny days | 18 | 19 | 19 | 18 | 16 | 14 | 19 | 16 | 21 | 18 | 25 | 20 |
| Rainy days | 5 | 7 | 9 | 10 | 15 | 16 | 12 | 15 | 9 | 12 | 3 | 8 |
| Snow days | 8 | 2 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 3 |
The best time to visit Adair County during the most sunny months:
The largest precipitation sum in Adair County is at