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 32°F or less and 99.6 days with high temperatures of 90°F or more. Temperatures rarely reach 100°F.

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 7.4 mph.

Average Temperatures Average Precipitation

Month High Low Month Inches

January 62°F 41°F January 3.68

February 67°F 44°F February 2.98

March 73°F 51°F March 3.36

April 79°F 57°F April 3.60

May 86°F 66°F May 5.15

June 91°F 72°F June 5.35

July 94°F 74°F July 3.18

August 94°F 73°F August 3.83

September 89°F 68°F September 4.33

October 82°F 59°F October 4.50

November 72°F 50°F November 4.19

December 65°F 43°F December 3.69