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Belfast, ME Weather


Belfast, ME climate is mild during summer when temperatures tend to be in the 60's and very cold during winter when temperatures tend to be in the 20's.

The warmest month of the year is July with an average maximum temperature of 79.30 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 10.60 degrees Fahrenheit.

Temperature variations between night and day tend to be moderate during summer with a difference that can reach 22 degrees Fahrenheit, and moderate during winter with an average difference of 21 degrees Fahrenheit.

The annual average precipitation at Belfast is 47.65 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is November with an average rainfall of 4.74 Inches.

Weather Data

Normal Climate

Normal Temperatures

(BELFAST Weather station, 1.81 miles from Belfast)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max °F 31.1 33.8 42.0 52.8 64.6 73.8 79.3 77.9 69.8 58.5 46.7 35.7 55.5
Mean °F 20.9 23.4 32.3 42.7 53.5 62.6 68.2 66.9 59.0 48.4 38.4 26.6 45.2
Min °F 10.6 12.9 22.6 32.5 42.4 51.3 57.1 55.9 48.1 38.2 30.1 17.5 34.9

Normal Precipitation

(BELFAST Weather station, 1.81 miles from Belfast)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Inch 4.06 3.01 4.38 4.45 4.18 3.88 3.20 3.01 4.10 4.33 4.74 4.31 47.65