What is the hottest month in Houston?

August — average highs around 92° with lows near 77°.

What is the coldest month in Houston?

January, when nights typically drop to 46° and days top out near 62°.

What is the rainiest month in Houston?

May, averaging about 9.3 in of precipitation; the driest is March at roughly 4.4 in.

How warm is Houston over the year?

The annual mean is 71°, with about 75 in of precipitation in a typical year (1991-2020 normals).

Houston Climate — Monthly Normals 1991-2020

Climate in Houston

The typical year in Houston (Texas), from 1991-2020 normals. For what's happening now, see the current forecast; a month ahead — the 30-day outlook.

Annual mean temp

21.8°C

average across 12 months

Annual precipitation

1913 mm

yearly total

Warmest month

Aug

⌀ max 33°C

Coldest month

Jan

⌀ min 7°C

Temperatures by month

typical high (orange) · typical low (blue)

Jan

8° … 17°

Feb

10° … 20°

Mar

14° … 23°

Apr

17° … 26°

May

21° … 29°

Jun

24° … 32°

Jul

25° … 33°

Aug

25° … 34°

Sep

23° … 31°

Oct

18° … 28°

Nov

13° … 22°

Dec

11° … 20°

Precipitation by month

monthly totals across the year

Jan

154 mm

Feb

122 mm

Mar

112 mm

Apr

163 mm

May

235 mm

Jun

177 mm

Jul

209 mm

Aug

120 mm

Sep

208 mm

Oct

131 mm

Nov

122 mm

Dec

160 mm

The short version

RegionTexas

Latitude29.7633°N

Annual mean21.8°C

Annual precipitation1913 mm

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Weather map — Houston

Houston →

Source · 1991-2020 normals

Houston, TX Climate