Average annual temperature is 16.4 °C
Absolute maximum temperature: 39.9 °C
Absolute minimum temperature: -8.4 °C
Number of sunny days: 212 days
Number of rainy days: 152 days
Number of snow days: 1 day
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) | 19.3 | 21.7 | 26.0 | 28.2 | 32.5 | 38.8 | 38.9 | 39.9 | 35.8 | 31.2 | 25.5 | 20.3 |
| Average daytime temperature (°C) | 10.5 | 12.5 | 15.2 | 21.5 | 26.4 | 31.6 | 33.9 | 34.4 | 30.2 | 21.9 | 15.9 | 11.9 |
| Average temperature (°C) | 5.0 | 6.0 | 9.5 | 15.0 | 20.5 | 25.6 | 27.9 | 28.3 | 24.2 | 16.9 | 10.5 | 7.0 |
| Average night temperature (°C) | 1.0 | 1.5 | 5.0 | 9.6 | 15.5 | 20.4 | 22.9 | 23.3 | 19.4 | 12.7 | 6.2 | 3.5 |
| Absolute minimum temperature (°C) | -8.4 | -6.9 | -5.9 | 3.5 | 6.4 | 16.1 | 18.3 | 17.4 | 15.7 | -0.5 | -3.6 | -2.3 |
| 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 | 14.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.8 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 13.5 | 12.4 | 11.3 | 10.2 | 9.7 |
| 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) | 6.1 | 6.9 | 7.2 | 9.8 | 10.3 | 12.4 | 11.5 | 11.9 | 10.3 | 7.9 | 7.6 | 5.9 |
| Precipitation (mm) | 39 | 85 | 103 | 49 | 87 | 58 | 112 | 45 | 56 | 98 | 41 | 66 |
| Sunny days | 20 | 16 | 14 | 17 | 10 | 17 | 17 | 20 | 20 | 18 | 23 | 20 |
| Rainy days | 11 | 12 | 17 | 13 | 21 | 13 | 14 | 11 | 10 | 13 | 7 | 10 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Delaware during the most sunny months:
The largest precipitation sum in Delaware is at