Average annual temperature is 14.9 °C
Absolute maximum temperature: 35.3 °C
Absolute minimum temperature: -9.0 °C
Number of sunny days: 182 days
Number of rainy days: 181 days
Number of snow days: 2 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) | 19.0 | 21.8 | 22.3 | 29.1 | 29.1 | 30.5 | 35.1 | 33.8 | 35.3 | 27.8 | 23.3 | 18.0 |
| Average daytime temperature (°C) | 10.9 | 11.7 | 13.2 | 20.8 | 21.5 | 26.3 | 31.0 | 29.6 | 26.1 | 21.6 | 14.0 | 11.2 |
| Average temperature (°C) | 6.8 | 6.9 | 7.6 | 15.1 | 16.4 | 21.0 | 25.8 | 24.7 | 21.5 | 16.1 | 8.7 | 7.0 |
| Average night temperature (°C) | 3.4 | 2.6 | 2.9 | 10.6 | 12.2 | 16.5 | 21.5 | 20.8 | 17.7 | 11.9 | 4.7 | 3.5 |
| Absolute minimum temperature (°C) | -3.3 | -9.0 | -3.1 | 1.8 | 4.9 | 11.4 | 17.8 | 16.4 | 12.6 | 4.8 | -4.5 | -2.6 |
| 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) | 9.8 | 10.7 | 12.0 | 13.2 | 14.3 | 14.9 | 14.6 | 13.7 | 12.4 | 11.2 | 10.1 | 9.5 |
| 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) | 5.5 | 7.0 | 7.8 | 9.8 | 11.3 | 11.1 | 11.9 | 10.6 | 8.6 | 8.8 | 7.7 | 5.5 |
| Precipitation (mm) | 55 | 63 | 84 | 134 | 68 | 138 | 108 | 66 | 129 | 28 | 54 | 141 |
| Sunny days | 13 | 16 | 16 | 15 | 16 | 11 | 10 | 12 | 15 | 19 | 23 | 16 |
| Rainy days | 18 | 11 | 14 | 15 | 15 | 19 | 21 | 19 | 15 | 12 | 7 | 15 |
| Snow days | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Delaware during the most sunny months:
The largest precipitation sum in Delaware is at