As of 08:09 EDT

Portland, ME weather in December

71°

Portland, Sunday, 9 August, 08:09

Clear. Feels like 72°. High 92°, low 69°.

Pressure29.88 inHg

Wind1 mph N

Humidity95%

Visibility6.2 mi

Dew point69°

See detailed hourly forecast

In December, Portland, ME averages a high of 36.5° and a low of 24.9°. About 4.3 inches of precipitation fall over the month (10 wet days). The record high is 63.7° (1998) and the record low -16.1° (2017). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	42.1°	31.5°	30%	61° (2001)	11.3° (1989)
2	41.4°	30.4°	30%	54.5° (1998)	11.1° (1989)
3	40.8°	30.4°	35%	61.7° (2009)	4.8° (1976)
4	39.4°	28.9°	25%	62.1° (1982)	10.9° (1989)
5	37.6°	27.7°	23%	56.5° (2001)	0.7° (2025)
6	39.6°	29.1°	38%	63.3° (2001)	7.2° (2025)
7	39.4°	28.2°	37%	63.7° (1998)	9.5° (1989)
8	36.1°	25.2°	28%	51.4° (2022)	5.5° (2025)
9	37.4°	25°	37%	52.5° (1991)	-1.5° (2025)
10	38.1°	26.8°	37%	55.6° (2019)	5.4° (1976)
11	38.1°	26.8°	32%	55.6° (2024)	4.1° (1977)
12	37°	26.1°	32%	56.3° (1979)	1.6° (1977)
13	37°	25.5°	28%	54.5° (1984)	1.8° (1976)
14	36.5°	25°	38%	51.8° (2019)	0.9° (1989)
15	36.9°	25.5°	35%	55.6° (2008)	3° (1989)
16	36.5°	24.6°	33%	53.2° (2008)	-1.7° (2016)
17	36.1°	25°	50%	56.3° (2021)	1.4° (2017)
18	35.4°	23.2°	37%	56.5° (2023)	5.9° (1972)
19	33.1°	21.7°	30%	54° (2025)	0.1° (1985)
20	32.7°	21.7°	37%	51.1° (2002)	-2.2° (1980)
21	35.2°	22.8°	33%	54.3° (1973)	-3.6° (1963)
22	35.4°	23.5°	35%	52.7° (2018)	-2.9° (1989)
23	36°	24.3°	32%	56.7° (1990)	-3.5° (1989)
24	36.3°	23.9°	38%	57.9° (2015)	-2.7° (1989)
25	35.1°	21.7°	33%	55.8° (2015)	-12.5° (1980)
26	33.8°	20.8°	27%	53.4° (1982)	-12.6° (1980)
27	32.2°	21.4°	28%	51.6° (1964)	-3.3° (1968)
28	34.3°	21.9°	30%	53.2° (1982)	-9.4° (2017)
29	34.9°	22.5°	32%	55.8° (1984)	-16.1° (2017)
30	33.1°	19.9°	40%	50.9° (1984)	-11° (2017)
31	33.1°	20.1°	33%	55.9° (2022)	-9° (2017)