The most pleasant months of the year for the Grand Rapids metro area are July, August and June. In the Grand Rapids metro area, there are 3 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for the Grand Rapids metro area with an average high temperature of 78.4°, which ranks it as one of the coolest places in Minnesota. January is the snowiest month in the Grand Rapids metro area with 11.2 inches of snow, and 7 months of the year have significant snowfall. There are few days during the summer when the humidity becomes unpleasant.