Average annual temperature is 11.7 °C
Absolute maximum temperature: 38.4 °C
Absolute minimum temperature: -20.3 °C
Number of sunny days: 230 days
Number of rainy days: 112 days
Number of snow days: 23 days
Look at detailed online map of Duncan
* Weather data for Duncan 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) | 10.5 | 15.0 | 20.9 | 29.4 | 30.6 | 33.9 | 36.2 | 38.4 | 36.0 | 32.0 | 18.9 | 13.0 |
| Average daytime temperature (°C) | 0.7 | 5.7 | 8.7 | 18.3 | 25.4 | 29.2 | 29.3 | 30.4 | 28.5 | 18.0 | 12.0 | 6.1 |
| Average temperature (°C) | -3.7 | -1.3 | 1.6 | 11.1 | 18.9 | 23.4 | 23.6 | 24.4 | 21.8 | 12.6 | 5.8 | 1.2 |
| Average night temperature (°C) | -7.1 | -5.9 | -3.2 | 5.3 | 13.2 | 17.7 | 18.6 | 19.5 | 16.4 | 8.1 | 1.1 | -2.5 |
| Absolute minimum temperature (°C) | -20.3 | -18.1 | -10.9 | -5.1 | 3.2 | 10.9 | 12.4 | 12.7 | 9.1 | -6.6 | -6.5 | -6.3 |
| 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 | 9.2 |
| 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) | 5.1 | 7.7 | 8.4 | 10.5 | 11.5 | 12.8 | 11.8 | 11.6 | 10.3 | 7.5 | 7.2 | 4.9 |
| Precipitation (mm) | 42 | 30 | 47 | 31 | 57 | 89 | 92 | 35 | 47 | 97 | 15 | 46 |
| Sunny days | 20 | 20 | 22 | 23 | 15 | 16 | 13 | 21 | 20 | 15 | 24 | 21 |
| Rainy days | 4 | 3 | 7 | 6 | 16 | 14 | 18 | 10 | 10 | 15 | 3 | 6 |
| Snow days | 7 | 5 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 4 |
The best time to visit Duncan during the most sunny months:
The largest precipitation sum in Duncan is at