| # | City | Average annual temperature |
|---|---|---|
| 1 | Hockessin | 52.4°F |
| 2 | Elsmere | 53.3°F |
| 3 | Wilmington | 53.3°F |
| 4 | Harrington | 55.4°F |
| 5 | Milford | 55.4°F |
| 6 | Seaford | 55.4°F |
| 7 | Bear | 55.5°F |
| 8 | New Castle | 55.5°F |
| 9 | Middletown | 55.7°F |
| 10 | Newark | 55.7°F |
| 11 | Pike Creek | 55.7°F |
| 12 | Camden | 57.0°F |
| 13 | Dover | 57.0°F |
| 14 | Smyrna | 57.0°F |
| 15 | Claymont | 57.2°F |
| 16 | Georgetown | 57.6°F |
| 17 | Laurel | 58.3°F |
| 18 | Lewes | 58.6°F |
| 19 | Rehoboth Beach | 58.6°F |
Source: NOAA NCEI 1991-2020 U.S. Climate Normals, nearest station with complete data. Only cities covered by GIS Map with at least 1,000 residents are ranked. Estimates carry margins of error.
Citing this page: GIS Map, “Coldest Cities in Delaware”, https://gismap.land/rankings/delaware/coldest-cities. Figures from NOAA NCEI 1991-2020 U.S. Climate Normals, nearest station with complete data.