weather temperature in houston texas
Houston Weather. Houstonâs temperate climate sustains tropical vegetation and allows the cityâs residents and visitors an enviable outdoor lifestyle. Houston averages only 18.0 days per year with temperatures of 32Â°F or less and 99.6 days with high temperatures of 90Â°F or more. Temperatures rarely reach 100Â°F. Houstonâs growing season averages 300 days. The normal frost-free period extends from Feb. 14 to Dec. 11.