Average annual temperature is 12.1 °C
Absolute maximum temperature: 32.5 °C
Absolute minimum temperature: -10.4 °C
Number of sunny days: 165 days
Number of rainy days: 187 days
Number of snow days: 13 days
Look at detailed online map of Delaware
* Weather data for Delaware 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) | 17.0 | 20.4 | 19.9 | 25.9 | 28.7 | 32.2 | 32.5 | 31.4 | 32.1 | 27.9 | 20.0 | 15.9 |
| Average daytime temperature (°C) | 6.1 | 10.6 | 10.4 | 17.3 | 21.6 | 25.7 | 28.1 | 26.9 | 24.5 | 18.1 | 11.3 | 8.5 |
| Average temperature (°C) | 2.3 | 3.6 | 4.4 | 11.0 | 15.5 | 19.9 | 23.1 | 21.6 | 19.1 | 13.4 | 5.8 | 4.5 |
| Average night temperature (°C) | -0.8 | -1.1 | 0.0 | 5.3 | 10.0 | 14.3 | 18.5 | 16.8 | 14.5 | 9.4 | 1.7 | 1.7 |
| Absolute minimum temperature (°C) | -10.4 | -10.2 | -7.6 | -1.2 | 2.1 | 8.8 | 14.3 | 10.4 | 9.0 | -1.1 | -7.1 | -4.5 |
| 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) | 9.7 | 10.7 | 11.9 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.4 |
| 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) | 3.3 | 7.1 | 7.1 | 9.1 | 10.4 | 10.5 | 11.9 | 10.8 | 9.3 | 7.1 | 7.1 | 4.5 |
| Precipitation (mm) | 126 | 55 | 137 | 99 | 63 | 110 | 79 | 115 | 34 | 67 | 41 | 62 |
| Sunny days | 6 | 17 | 11 | 15 | 19 | 14 | 5 | 15 | 17 | 13 | 20 | 13 |
| Rainy days | 18 | 11 | 15 | 15 | 12 | 16 | 26 | 16 | 13 | 18 | 9 | 18 |
| Snow days | 7 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
The best time to visit Delaware during the most sunny months:
The largest precipitation sum in Delaware is at