Average December Temperatures for Maryland

Average temperatures for December at cities, towns, parks and lakes throughout Maryland are listed below in degrees Fahrenheit and Celsius.

The tables give the normals for maximum and minimum monthly temperatures based on weather data collected from 1981 to 2010.

You can jump to a separate table for each region of the state: Eastern Shore, Central Maryland and Western Maryland.

Eastern Shore

Average December temperatures
High °F	Low °F	Place	High °C	Low °C
50	33	Assateague Island	10	1
49	33	Cambridge	10	0
44	30	Chestertown	7	-1
49	32	Ocean City	9	0
48	32	Royal Oak	9	0
50	33	Salisbury	10	1
51	31	Snow Hill	10	-1

Average daily temperatures in December
High °F	Low °F	Place	High °C	Low °C
45	30	Aberdeen	7	-1
48	33	Annapolis	9	0
45	28	Baltimore	7	-2
46	28	Beltsville	8	-2
42	26	Catoctin Mountain Park	6	-4
47	30	College Park	8	-1
45	30	Frederick	7	-1
48	31	La Plata	9	0
44	31	Rockville	7	-1

December temperatures: daily averages
High °F	Low °F	Place	High °C	Low °C
45	27	Cumberland	7	-3
41	27	Hagerstown	5	-3
39	21	Oakland	4	-6
39	24	Savage River Reservoir Dam	4	-5