The most pleasant months of the year for Casas are November, March and February. In Casas, there are 4 comfortable months with high temperatures in the range of 70-85°. August is the hottest month for Casas with an average high temperature of 99.7°, which ranks it as one of the hottest places in Texas. Any measurable snowfall is a rare occurance in Casas. The humidity here has been described as stifling in July and June.