The most pleasant months of the year for Clay are June, July and August. In Clay, there are 4 comfortable months with high temperatures in the range of 70-85°. August is the hottest month for Clay with an average high temperature of 81.7°, which ranks it as about average compared to other places in North Dakota. January is the snowiest month in Clay with 8.6 inches of snow, and 7 months of the year have significant snowfall. There are few days during the summer when the humidity becomes unpleasant.