Delaware weather in August: Statewide normals and every place, NOAA 1991-2020
In August, Delaware's statewide normal high is 85°F and normal low 66°F; normal highs run from 85°F in Wilmington to 87°F in Newark (NOAA 1991-2020 normals).
- Statewide normal high
- 85°FAugust, 1991-2020
- Statewide normal low
- 66°FAugust, 1991-2020
- Statewide normal precipitation
- 4.69 inAugust
- Warmest place
- 87°Fnormal high, Newark
- Coolest place
- 85°Fnormal high, Wilmington
Where is Delaware warmest and wettest in August?
Newark has the warmest August afternoons (87°F) and Wilmington the coolest (85°F). Dover gets the most precipitation (4.92 in) and Newark the least (3.95 in).
Statewide, August averaged 76.9°F in 2021, 78.1°F in 2022, 75.3°F in 2023, 75.0°F in 2024, 71.9°F in 2025, 77.9°F in 2026, against a 1991-2020 normal of 75.5°F.
| Place | High | Low | Precip. | Snow |
|---|---|---|---|---|
| Wilmington | 85°F | 67°F | 3.98 | 0.0 |
| Dover | 85°F | 67°F | 4.92 | 0.0 |
| Newark | 87°F | 65°F | 3.95 | – |
| Georgetown | 86°F | 68°F | 3.99 | – |
| Lewes | 86°F | 69°F | 4.31 | 0.0 |
| Greenwood | 85°F | 65°F | 4.50 | 0.0 |
| Wilmington Porter Research | 82°F | 66°F | 4.39 | 0.0 |
Source: NOAA NCEI nClimDiv statewide normals; NOAA NCEI 1991-2020 monthly normals for each station.