The most pleasant months of the year for Fallis are May, October and April. In Fallis, there are 3 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Fallis with an average high temperature of 94.2°, which ranks it as warmer than most places in Oklahoma. January is the snowiest month in Fallis with 1.6 inches of snow, and 3 months of the year have significant snowfall. July is the most humid month, though humidity is low for most of the year.