Weather
Houston’s temperate climate sustains tropical vegetation and allows the city’s residents and visitors an enviable outdoor lifestyle.
- Houston averages only 18.0 days per year with temperatures of 32oF or less and 99.6 days with high temperatures of 90oF or more. Temperatures rarely reach 100oF.
- Houston’s growing season averages 300 days. The normal frost-free period extends from Feb. 14 to Dec. 11.
- Houston has had only 14 measurable snowfalls since 1939.
- A statistically average year contains 90.3 “clear” days, concentrated in October and November; 114.5 “partly cloudy” days, typical of June through September; and 160.3 “cloudy” days, common in December through May.
- Prevailing wind in Houston is south-southeasterly at a mean speed of 7.7 mph.
Average Temperatures:
MONTH HIGH/LOWJanuary 61/40°F
February 65/43
March 71/50
April 78/58
May 85/64
June 90/71
July 93/72
August 93/72
September 88/68
October 82/58
November 72/50
December 65/42
Source: Greater Houston Partnership
Green Houston 
