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Grand Marais, MN Weather


Grand Marais, MN climate is mild during summer when temperatures tend to be in the 60's and extremely cold during winter when temperatures tend to be in the 10's.

The warmest month of the year is August with an average maximum temperature of 71.00 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 4.90 degrees Fahrenheit.

Temperature variations between night and day tend to be fairly limited during summer with a difference that can reach 18 degrees Fahrenheit, and fairly limited during winter with an average difference of 18 degrees Fahrenheit.

The annual average precipitation at Grand Marais is 24.62 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is June with an average rainfall of 3.41 Inches.

Weather Data

Normal Climate

Normal Temperatures

(GRAND MARAIS Weather station, 2.19 miles from Grand Marais)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max °F 22.9 27.4 35.4 46.4 55.9 62.9 69.8 71.0 63.0 52.0 38.3 27.3 47.7
Mean °F 13.9 18.5 27.5 38.4 47.1 53.3 60.6 62.6 55.1 44.6 31.8 19.4 39.4
Min °F 4.9 9.6 19.6 30.3 38.2 43.7 51.3 54.2 47.2 37.1 25.2 11.5 31.1

Normal Precipitation

(GRAND MARAIS Weather station, 2.19 miles from Grand Marais)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Inch 0.72 0.56 1.12 1.30 2.50 3.41 3.38 3.13 3.36 2.59 1.76 0.79 24.62