Average annual temperature is 10.0 °C
Absolute maximum temperature: 28.9 °C
Absolute minimum temperature: -11.2 °C
Number of sunny days: 160 days
Number of rainy days: 187 days
Number of snow days: 18 days
Look at detailed online map of Kelleys Island
* Weather data for Kelleys Island 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 | 10.4 | 10.4 | 18.7 | 21.6 | 26.3 | 28.9 | 28.0 | 28.0 | 24.1 | 15.1 | 10.9 |
| Average daytime temperature (°C) | 1.8 | 3.9 | 3.4 | 10.4 | 14.8 | 20.6 | 24.7 | 23.8 | 20.7 | 14.9 | 8.3 | 4.9 |
| Average temperature (°C) | -0.3 | 0.0 | 1.2 | 7.2 | 11.7 | 17.6 | 21.8 | 20.6 | 18.5 | 12.6 | 5.6 | 3.0 |
| Average night temperature (°C) | -1.8 | -2.2 | -0.5 | 4.9 | 9.9 | 15.6 | 19.8 | 18.5 | 16.8 | 10.8 | 3.7 | 1.7 |
| Absolute minimum temperature (°C) | -10.9 | -11.2 | -5.6 | -0.1 | 2.9 | 11.7 | 17.5 | 13.0 | 14.0 | 2.7 | -5.3 | -2.2 |
| 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 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 3.6 | 7.1 | 7.1 | 9.3 | 11.2 | 12.3 | 11.9 | 10.9 | 9.9 | 6.6 | 6.8 | 3.9 |
| Precipitation (mm) | 94 | 70 | 111 | 87 | 51 | 96 | 83 | 84 | 35 | 84 | 42 | 73 |
| Sunny days | 9 | 15 | 9 | 13 | 24 | 18 | 8 | 13 | 14 | 10 | 18 | 9 |
| Rainy days | 14 | 10 | 18 | 17 | 7 | 12 | 23 | 18 | 16 | 21 | 10 | 21 |
| Snow days | 8 | 3 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 |
The best time to visit Kelleys Island during the most sunny months:
The largest precipitation sum in Kelleys Island is at