The most pleasant months of the year for Durham are June, August and July. In Durham, there are 4 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Durham with an average high temperature of 82.7°, which ranks it as warmer than most places in North Dakota. January is the snowiest month in Durham with 9.6 inches of snow, and 7 months of the year have significant snowfall. There are few days during the summer when the humidity becomes unpleasant.