Average annual temperature is 14.6 °C
Absolute maximum temperature: 36.6 °C
Absolute minimum temperature: -7.6 °C
Number of sunny days: 175 days
Number of rainy days: 187 days
Number of snow days: 3 days
Look at detailed online map of Duncanon
* Weather data for Duncanon 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) | 19.7 | 24.5 | 24.5 | 28.5 | 29.3 | 32.8 | 35.8 | 36.6 | 34.7 | 30.3 | 26.1 | 18.7 |
| Average daytime temperature (°C) | 10.7 | 13.9 | 14.3 | 19.9 | 24.1 | 28.0 | 31.1 | 29.6 | 27.9 | 21.2 | 14.8 | 11.3 |
| Average temperature (°C) | 6.0 | 7.8 | 8.0 | 13.4 | 17.6 | 21.3 | 24.9 | 23.6 | 21.1 | 15.5 | 8.7 | 6.2 |
| Average night temperature (°C) | 2.7 | 3.2 | 3.3 | 7.8 | 12.3 | 15.7 | 20.0 | 18.7 | 15.7 | 11.0 | 4.4 | 2.8 |
| Absolute minimum temperature (°C) | -5.0 | -6.6 | -7.6 | -0.2 | 4.3 | 9.4 | 15.5 | 12.7 | 12.0 | 2.7 | -5.6 | -6.1 |
| 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 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.5 | 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) | 4.8 | 6.9 | 7.7 | 9.7 | 10.2 | 10.3 | 11.3 | 10.6 | 10.6 | 7.7 | 7.4 | 5.4 |
| Precipitation (mm) | 127 | 96 | 124 | 73 | 44 | 138 | 70 | 99 | 37 | 47 | 46 | 87 |
| Sunny days | 10 | 15 | 19 | 17 | 15 | 12 | 7 | 12 | 15 | 19 | 21 | 13 |
| Rainy days | 19 | 13 | 11 | 13 | 16 | 18 | 24 | 19 | 15 | 12 | 9 | 18 |
| Snow days | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Duncanon during the most sunny months:
The largest precipitation sum in Duncanon is at