Average Temperatures for Maine in December





Average temperatures for December at cities, communities, lakes and other locations throughout Maine are listed below in degrees Fahrenheit and Celsius.

You can jump to a separate table for Maine's Coast, Central Maine and Northern Maine.

The tables give the normals for maximum and minimum monthly temperatures based on weather data collected from 1991 to 2020 by the US National Centers for Environmental Information.

Maine Coast

Average December temperatures
High °F Low °F Place High °C Low °C
38 22 Acadia National Park 3 -5
35 18 Belfast 2 -8
37 20 Brunswick 3 -7
37 23 Eastport 3 -5
35 19 Jonesboro 2 -7
39 20 Kennebunkport 4 -7
36 22 Newcastle 2 -6
38 22 Portland 4 -5
41 24 Tenants Harbor 5 -4

Central Maine

Average daily temperatures in December
High °F Low °F Place High °C Low °C
35 20 Augusta 2 -7
35 17 Bangor 1 -8
32 13 Dover-Foxcroft 0 -10
29 14 Flagstaff Lake, Long Falls Dam -2 -10
33 18 Grand Lake Stream 1 -8
34 20 Lewiston 1 -6
30 12 Lower Richardson Lake, Middle Dam -1 -11
29 11 Rangeley -2 -12
33 16 Rumford 1 -9
35 17 Waterville 1 -8

Northern Maine

December temperatures: daily averages
High °F Low °F Place High °C Low °C
26 8 Fort Kent -3 -13
31 15 Millinocket -1 -9
29 12 Moosehead Lake, Brassua Dam -2 -11
28 13 Presque Isle -2 -11
Reference

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

Maine Temperatures
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