The most pleasant months of the year for Montello are September, June and May. In Montello, there are 2 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Montello with an average high temperature of 90.1°, which ranks it as cooler than most places in Nevada. January is the snowiest month in Montello with 6.2 inches of snow, and 6 months of the year have significant snowfall. There are few days during the year when the humidity is even noticable.