Average annual temperature is 14.2 °C
Absolute maximum temperature: 39.7 °C
Absolute minimum temperature: -11.1 °C
Number of sunny days: 273 days
Number of rainy days: 85 days
Number of snow days: 7 days
Look at detailed online map of Dennison
* Weather data for Dennison 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) | 15.9 | 16.3 | 18.2 | 30.7 | 30.3 | 35.4 | 39.7 | 37.4 | 35.2 | 29.1 | 25.8 | 17.6 |
| Average daytime temperature (°C) | 7.6 | 9.6 | 12.6 | 21.9 | 26.8 | 30.5 | 36.9 | 33.0 | 29.6 | 23.7 | 15.1 | 9.0 |
| Average temperature (°C) | 1.4 | 1.9 | 5.9 | 13.6 | 19.3 | 23.0 | 30.1 | 26.0 | 21.8 | 15.9 | 8.0 | 2.9 |
| Average night temperature (°C) | -3.1 | -3.7 | 0.3 | 5.0 | 11.1 | 14.0 | 21.1 | 18.4 | 14.0 | 8.3 | 1.7 | -2.6 |
| Absolute minimum temperature (°C) | -10.5 | -11.1 | -5.4 | -5.4 | 4.4 | 9.2 | 16.5 | 14.7 | 10.2 | -3.5 | -5.4 | -7.8 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.5 | 9.3 | 9.2 | 11.9 | 12.5 | 13.1 | 12.9 | 12.1 | 10.7 | 10.3 | 9.0 | 7.9 |
| Precipitation (mm) | 53 | 23 | 37 | 3 | 9 | 1 | 1 | 16 | 11 | 1 | 15 | 6 |
| Sunny days | 17 | 21 | 16 | 26 | 23 | 27 | 27 | 15 | 21 | 27 | 27 | 26 |
| Rainy days | 8 | 7 | 15 | 3 | 8 | 3 | 4 | 16 | 9 | 4 | 3 | 5 |
| Snow days | 6 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Dennison is at