Average annual temperature is 11.1 °C
Absolute maximum temperature: 36.1 °C
Absolute minimum temperature: -25.9 °C
Number of sunny days: 228 days
Number of rainy days: 118 days
Number of snow days: 19 days
Look at detailed online map of Denison
* Weather data for Denison 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) | 8.0 | 13.0 | 19.9 | 28.1 | 29.5 | 31.7 | 34.4 | 36.1 | 33.9 | 31.5 | 17.9 | 13.6 |
| Average daytime temperature (°C) | -0.2 | 3.6 | 7.2 | 17.3 | 24.9 | 29.0 | 28.7 | 28.8 | 26.6 | 17.3 | 10.9 | 5.9 |
| Average temperature (°C) | -4.3 | -2.3 | 1.0 | 10.1 | 18.4 | 23.1 | 23.0 | 23.7 | 20.9 | 12.4 | 5.3 | 1.4 |
| Average night temperature (°C) | -7.4 | -6.7 | -3.4 | 4.7 | 12.5 | 17.3 | 17.9 | 19.2 | 16.3 | 8.4 | 0.9 | -2.0 |
| Absolute minimum temperature (°C) | -25.9 | -24.0 | -13.1 | -5.0 | 1.9 | 9.4 | 10.8 | 12.1 | 10.9 | -5.8 | -9.0 | -5.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 13.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.5 | 10.6 | 11.9 | 13.4 | 14.6 | 15.2 | 14.9 | 13.8 | 12.5 | 11.1 | 9.8 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 4.2 | 7.0 | 7.6 | 9.2 | 11.4 | 12.7 | 11.8 | 11.3 | 9.7 | 7.7 | 7.1 | 5.0 |
| Precipitation (mm) | 60 | 74 | 40 | 43 | 41 | 38 | 86 | 83 | 46 | 64 | 6 | 51 |
| Sunny days | 18 | 18 | 20 | 20 | 18 | 19 | 14 | 20 | 19 | 16 | 24 | 22 |
| Rainy days | 4 | 8 | 9 | 9 | 13 | 11 | 17 | 11 | 11 | 15 | 4 | 6 |
| Snow days | 9 | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 3 |
The best time to visit Denison during the most sunny months:
The largest precipitation sum in Denison is at