Average Temperatures for Maryland in December
Average temperatures for December at cities, communities and other locations around Maryland are listed below in degrees Fahrenheit and Celsius.
You can jump to a separate table for each region of the state: Eastern Shore, Central Maryland and Western Maryland.
The tables give the normals for maximum and minimum temperatures based on weather data collected from 1991 to 2020 by the US National Centers for Environmental Information.
Eastern Shore
| High °F | Low °F | Place | High °C | Low °C |
|---|---|---|---|---|
| 52 | 35 | Assateague Island | 11 | 2 |
| 45 | 31 | Chestertown | 7 | 0 |
| 50 | 32 | Ocean City | 10 | 0 |
| 49 | 33 | Royal Oak | 9 | 1 |
| 52 | 33 | Salisbury | 11 | 0 |
| 52 | 34 | Snow Hill | 11 | 1 |
Central Maryland
| High °F | Low °F | Place | High °C | Low °C |
|---|---|---|---|---|
| 46 | 30 | Aberdeen | 8 | -1 |
| 48 | 34 | Annapolis | 9 | 1 |
| 48 | 30 | Baltimore | 9 | -1 |
| 47 | 30 | Beltsville | 8 | -1 |
| 43 | 28 | Catoctin Mountain Park | 6 | -2 |
| 47 | 31 | Frederick | 8 | -1 |
| 47 | 31 | Laurel | 8 | 0 |
| 48 | 29 | Mechanicsville | 9 | -2 |
| 50 | 34 | Patuxent River | 10 | 1 |
| 46 | 31 | Rockville | 8 | -1 |
Western Maryland
| High °F | Low °F | Place | High °C | Low °C |
|---|---|---|---|---|
| 43 | 27 | Cumberland | 6 | -3 |
| 38 | 24 | Frostburg | 3 | -5 |
| 44 | 30 | Hagerstown | 7 | -1 |
| 42 | 24 | Oakland | 5 | -5 |
| 40 | 25 | Savage River Reservoir Dam | 4 | -4 |
Reference
NOAA National Centers for Environmental Information (NCEI). Climate Normals.