Average annual temperature is 15.0 °C
Absolute maximum temperature: 35.5 °C
Absolute minimum temperature: -8.6 °C
Number of sunny days: 180 days
Number of rainy days: 183 days
Number of snow days: 2 days
Look at detailed online map of Willoughby
* Weather data for Willoughby 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) | 18.1 | 21.4 | 22.0 | 29.2 | 28.0 | 32.1 | 35.5 | 32.8 | 34.0 | 27.6 | 22.9 | 16.2 |
| Average daytime temperature (°C) | 10.5 | 11.5 | 13.0 | 20.9 | 22.0 | 26.8 | 30.8 | 29.4 | 26.2 | 21.2 | 13.4 | 10.8 |
| Average temperature (°C) | 6.7 | 6.8 | 7.7 | 15.1 | 16.7 | 21.3 | 25.9 | 24.8 | 21.6 | 16.5 | 8.7 | 7.1 |
| Average night temperature (°C) | 3.5 | 2.6 | 3.1 | 10.6 | 11.8 | 16.7 | 22.0 | 21.0 | 17.9 | 12.7 | 5.0 | 3.9 |
| Absolute minimum temperature (°C) | -3.1 | -8.6 | -2.4 | 3.0 | 6.6 | 11.2 | 19.7 | 16.8 | 12.4 | 6.9 | -3.4 | -1.5 |
| 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 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.7 | 12.0 | 13.2 | 14.3 | 14.8 | 14.6 | 13.7 | 12.4 | 11.2 | 10.1 | 9.5 |
| 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) | 5.4 | 7.1 | 7.8 | 9.7 | 11.2 | 11.1 | 11.8 | 10.5 | 8.3 | 9.1 | 7.6 | 5.5 |
| Precipitation (mm) | 71 | 64 | 80 | 112 | 51 | 152 | 157 | 113 | 68 | 25 | 59 | 195 |
| Sunny days | 14 | 15 | 16 | 16 | 13 | 12 | 8 | 13 | 15 | 20 | 21 | 17 |
| Rainy days | 17 | 12 | 15 | 14 | 18 | 18 | 23 | 18 | 15 | 11 | 8 | 14 |
| Snow days | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
The best time to visit Willoughby during the most sunny months:
The largest precipitation sum in Willoughby is at