Average annual temperature is 11.0 °C
Absolute maximum temperature: 38.9 °C
Absolute minimum temperature: -21.5 °C
Number of sunny days: 226 days
Number of rainy days: 111 days
Number of snow days: 28 days
Look at detailed online map of Boone County
* Weather data for Boone 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) | 7.7 | 14.5 | 18.9 | 28.9 | 30.6 | 33.6 | 36.0 | 38.9 | 35.5 | 31.4 | 18.4 | 12.7 |
| Average daytime temperature (°C) | -1.1 | 4.0 | 7.9 | 17.1 | 24.8 | 28.9 | 29.1 | 30.6 | 27.4 | 17.0 | 11.1 | 5.3 |
| Average temperature (°C) | -4.9 | -2.5 | 0.6 | 10.0 | 18.3 | 23.0 | 23.3 | 24.2 | 21.0 | 11.5 | 5.2 | 0.7 |
| Average night temperature (°C) | -8.0 | -6.9 | -4.2 | 4.0 | 12.5 | 17.1 | 18.3 | 19.2 | 15.7 | 7.0 | 1.0 | -2.6 |
| Absolute minimum temperature (°C) | -21.4 | -21.5 | -11.7 | -6.3 | 1.9 | 9.3 | 12.2 | 13.2 | 9.3 | -7.9 | -6.6 | -8.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 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) | 9.5 | 10.6 | 11.9 | 13.3 | 14.5 | 15.2 | 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 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 5.1 | 7.8 | 8.6 | 10.6 | 11.3 | 12.5 | 12.1 | 11.6 | 10.5 | 7.5 | 7.2 | 4.9 |
| Precipitation (mm) | 65 | 25 | 23 | 21 | 54 | 100 | 64 | 44 | 21 | 121 | 19 | 46 |
| Sunny days | 21 | 18 | 23 | 21 | 14 | 14 | 16 | 20 | 20 | 17 | 24 | 18 |
| Rainy days | 4 | 4 | 4 | 8 | 17 | 16 | 15 | 11 | 10 | 12 | 5 | 5 |
| Snow days | 6 | 6 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 8 |
The best time to visit Boone County during the most sunny months:
The largest precipitation sum in Boone County is at