Average annual temperature is 11.6 °C
Absolute maximum temperature: 33.4 °C
Absolute minimum temperature: -16.9 °C
Number of sunny days: 170 days
Number of rainy days: 183 days
Number of snow days: 12 days
Look at detailed online map of Defiance County
* Weather data for Defiance 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) | 16.5 | 17.2 | 17.4 | 26.5 | 31.0 | 33.4 | 31.4 | 31.9 | 32.8 | 28.9 | 18.2 | 15.9 |
| Average daytime temperature (°C) | 4.5 | 7.6 | 8.5 | 16.9 | 22.2 | 27.0 | 28.9 | 26.9 | 24.5 | 17.4 | 10.6 | 8.1 |
| Average temperature (°C) | 1.0 | 1.7 | 3.1 | 10.0 | 15.6 | 20.7 | 23.4 | 21.5 | 19.1 | 12.8 | 5.3 | 4.5 |
| Average night temperature (°C) | -1.9 | -2.4 | -0.7 | 4.1 | 9.4 | 14.7 | 18.1 | 16.7 | 14.4 | 9.0 | 1.3 | 1.8 |
| Absolute minimum temperature (°C) | -16.3 | -16.9 | -7.4 | -3.3 | 2.0 | 9.4 | 13.6 | 10.3 | 7.8 | -3.0 | -7.1 | -4.4 |
| 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) | 3.2 | 7.3 | 6.9 | 9.0 | 10.6 | 11.1 | 11.9 | 10.4 | 9.2 | 6.8 | 6.7 | 4.1 |
| Precipitation (mm) | 78 | 79 | 134 | 89 | 44 | 47 | 125 | 104 | 24 | 84 | 23 | 55 |
| Sunny days | 10 | 16 | 10 | 13 | 21 | 15 | 8 | 16 | 18 | 9 | 21 | 13 |
| Rainy days | 17 | 11 | 16 | 17 | 10 | 15 | 23 | 15 | 12 | 21 | 8 | 18 |
| Snow days | 4 | 1 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 |
The best time to visit Defiance County during the most sunny months:
The largest precipitation sum in Defiance County is at