The most pleasant months of the year for Elm Tree are June, July and August. In Elm Tree, there are 4 comfortable months with high temperatures in the range of 70-85°. August is the hottest month for Elm Tree with an average high temperature of 82.9°, which ranks it as warmer than most places in North Dakota. December is the snowiest month in Elm Tree with 8.1 inches of snow, and 8 months of the year have significant snowfall. There are few days during the summer when the humidity becomes unpleasant.