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
| 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
| 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
| 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.