Delaware Climate Data
NOAA 30-year climate normals for all 3 counties.
NOAA NCEI 1991-2020 Climate NormalsState Avg Temp
56.4°F
Hottest County
Sussex County
57.2°F avg
Coldest County
New Castle County
54.9°F avg
Wettest County
Kent County
47.6" precip
All Delaware Counties
Data sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.
Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.