Average annual temperature is 9.3 °C
Absolute maximum temperature: 35.3 °C
Absolute minimum temperature: -27.2 °C
Number of sunny days: 191 days
Number of rainy days: 142 days
Number of snow days: 32 days
Look at detailed online map of City of Dennison
* Weather data for City of 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) | 3.1 | 5.0 | 13.3 | 26.6 | 31.3 | 31.9 | 33.2 | 35.3 | 34.5 | 29.2 | 18.6 | 11.7 |
| Average daytime temperature (°C) | -3.0 | -0.9 | 3.5 | 12.7 | 22.8 | 28.4 | 27.6 | 27.8 | 25.0 | 15.0 | 8.0 | 4.9 |
| Average temperature (°C) | -6.4 | -6.0 | -1.8 | 6.8 | 16.6 | 22.5 | 22.0 | 22.4 | 19.8 | 10.7 | 3.2 | 0.9 |
| Average night temperature (°C) | -9.6 | -10.7 | -6.4 | 2.5 | 10.9 | 16.9 | 16.8 | 17.9 | 15.4 | 7.2 | -0.6 | -1.9 |
| Absolute minimum temperature (°C) | -23.8 | -27.2 | -18.2 | -6.9 | -0.1 | 10.1 | 12.7 | 12.1 | 7.2 | -5.5 | -13.5 | -8.7 |
| 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) | 9.3 | 10.5 | 11.9 | 13.5 | 14.8 | 15.5 | 15.1 | 14.0 | 12.5 | 11.0 | 9.6 | 8.9 |
| Daylight minimum duration (h) | 8.0 | 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) | 3.7 | 6.8 | 6.9 | 7.9 | 11.3 | 12.7 | 12.2 | 11.3 | 9.1 | 7.0 | 6.1 | 4.7 |
| Precipitation (mm) | 58 | 75 | 74 | 119 | 73 | 55 | 96 | 70 | 121 | 85 | 12 | 55 |
| Sunny days | 19 | 18 | 14 | 13 | 17 | 15 | 10 | 17 | 13 | 15 | 21 | 19 |
| Rainy days | 4 | 6 | 8 | 15 | 14 | 15 | 21 | 14 | 17 | 13 | 7 | 8 |
| Snow days | 8 | 4 | 9 | 2 | 0 | 0 | 0 | 0 | 0 | 3 | 2 | 4 |
The best time to visit City of Dennison during the most sunny months:
Months with the longest average daylight duration in City of Dennison:
The largest precipitation sum in City of Dennison is at