Weatheo

Houston Weather by Month

Average temperatures, rainfall and humidity for Houston, United States, month by month, built from OpenWeather’s historical records. Use it to see what a typical Houston month looks like before you travel — then check the live Houston forecast for the days ahead.

Warmest month

August

35°C average high

Coolest month

January

8°C average low

Wettest month

May

113 mm of rain

Driest month

February

55 mm of rain

Average temperature and rainfall in Houston by month

Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.

MonthAvg highAvg lowRecord low / highRainfallHumidityWind
January18°C8°C-8°C / 29°C
79 mm
71%14 km/h
February21°C11°C-10°C / 30°C
55 mm
74%15 km/h
March24°C14°C-3°C / 32°C
63 mm
72%16 km/h
April27°C17°C3°C / 33°C
72 mm
73%17 km/h
May30°C21°C8°C / 36°C
113 mm
75%15 km/h
June33°C24°C16°C / 40°C
112 mm
74%13 km/h
July34°C25°C20°C / 40°C
62 mm
73%12 km/h
August35°C25°C20°C / 42°C
87 mm
72%11 km/h
September32°C23°C14°C / 40°C
105 mm
74%11 km/h
October28°C18°C3°C / 36°C
79 mm
70%13 km/h
November23°C13°C-2°C / 31°C
59 mm
73%14 km/h
December20°C11°C-8°C / 28°C
75 mm
75%14 km/h

Best time to visit Houston

The most comfortable time to visit Houston is generally March to April and November, balancing mild daytime temperatures against the driest stretch of the year. The city has a moderate seasonal swing and rain concentrates around May, totalling about 961 mm a year.

Travellers who prefer heat should aim for August, when highs average 35°C. May is the month to avoid if rain would spoil your plans — it averages 113 mm, roughly 2× the rainfall of the driest month (February).

Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Houston forecast for what is happening now.

Weather across United States right now