Average annual temperature is 10.3 °C
Absolute maximum temperature: 38.3 °C
Absolute minimum temperature: -28.6 °C
Number of sunny days: 195 days
Number of rainy days: 137 days
Number of snow days: 33 days
Look at detailed online map of Charles City
* Weather data for Charles City 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) | 6.7 | 9.7 | 16.6 | 26.8 | 30.9 | 32.7 | 33.7 | 38.3 | 34.2 | 30.8 | 18.0 | 12.2 |
| Average daytime temperature (°C) | -1.1 | 2.4 | 6.0 | 15.3 | 23.9 | 28.3 | 27.9 | 28.5 | 25.8 | 16.4 | 9.4 | 5.6 |
| Average temperature (°C) | -5.0 | -3.7 | 0.4 | 8.8 | 17.2 | 22.5 | 22.3 | 23.1 | 19.9 | 11.7 | 4.0 | 1.1 |
| Average night temperature (°C) | -8.2 | -8.2 | -3.7 | 3.7 | 10.9 | 16.7 | 16.7 | 18.2 | 15.1 | 7.9 | 0.0 | -1.8 |
| Absolute minimum temperature (°C) | -28.6 | -26.3 | -16.4 | -4.8 | 0.1 | 8.9 | 11.1 | 11.7 | 8.1 | -5.2 | -13.7 | -7.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.4 | 10.5 | 11.9 | 13.4 | 14.7 | 15.3 | 15.0 | 13.9 | 12.5 | 11.0 | 9.7 | 9.1 |
| Daylight minimum duration (h) | 9.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 4.0 | 6.8 | 7.1 | 8.8 | 12.0 | 12.4 | 12.4 | 11.5 | 9.6 | 7.3 | 7.1 | 4.4 |
| Precipitation (mm) | 51 | 44 | 74 | 84 | 43 | 30 | 57 | 71 | 39 | 78 | 6 | 31 |
| Sunny days | 18 | 17 | 12 | 16 | 20 | 14 | 12 | 18 | 12 | 15 | 21 | 20 |
| Rainy days | 5 | 6 | 10 | 11 | 11 | 16 | 19 | 13 | 18 | 13 | 8 | 7 |
| Snow days | 8 | 5 | 9 | 3 | 0 | 0 | 0 | 0 | 0 | 3 | 1 | 4 |
The best time to visit Charles City during the most sunny months:
Months with the longest average daylight duration in Charles City:
The largest precipitation sum in Charles City is at