Average annual temperature is 14.5 °C
Absolute maximum temperature: 40.4 °C
Absolute minimum temperature: -10.1 °C
Number of sunny days: 194 days
Number of rainy days: 166 days
Number of snow days: 5 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) | 19.1 | 21.1 | 22.7 | 26.2 | 29.3 | 38.8 | 36.4 | 40.4 | 32.5 | 29.6 | 25.8 | 16.2 |
| Average daytime temperature (°C) | 8.7 | 12.3 | 13.3 | 19.7 | 24.8 | 29.8 | 31.8 | 31.6 | 28.0 | 20.3 | 14.7 | 10.4 |
| Average temperature (°C) | 3.6 | 5.6 | 7.1 | 13.1 | 18.6 | 23.1 | 25.7 | 25.2 | 21.4 | 15.0 | 8.7 | 5.6 |
| Average night temperature (°C) | 0.1 | 0.9 | 2.6 | 7.7 | 13.6 | 17.7 | 20.8 | 20.6 | 16.4 | 11.1 | 4.4 | 2.2 |
| Absolute minimum temperature (°C) | -10.1 | -9.6 | -7.5 | 1.0 | 5.7 | 12.1 | 16.4 | 14.1 | 11.5 | -2.8 | -4.9 | -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 | 14.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.4 | 13.6 | 12.4 | 11.2 | 10.2 | 9.6 |
| 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) | 5.6 | 7.2 | 7.7 | 10.5 | 10.8 | 12.5 | 11.7 | 10.8 | 10.9 | 8.0 | 7.5 | 6.0 |
| Precipitation (mm) | 52 | 86 | 173 | 54 | 88 | 75 | 54 | 112 | 56 | 58 | 31 | 60 |
| Sunny days | 13 | 17 | 14 | 20 | 15 | 14 | 10 | 20 | 17 | 20 | 19 | 15 |
| Rainy days | 15 | 10 | 17 | 10 | 16 | 16 | 21 | 11 | 13 | 11 | 11 | 15 |
| Snow days | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Duncan during the most sunny months:
The largest precipitation sum in Duncan is at