What is the hottest month in Dallas?

August — average highs around 96° with lows near 78°.

What is the coldest month in Dallas?

January, when nights typically drop to 38° and days top out near 56°.

What is the rainiest month in Dallas?

May, averaging about 8.2 in of precipitation; the driest is December at roughly 3.0 in.

How warm is Dallas over the year?

The annual mean is 68°, with about 58 in of precipitation in a typical year (1991-2020 normals).

Dallas Climate — Monthly Normals 1991-2020

Climate in Dallas

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

Annual mean temp

20.1°C

average across 12 months

Annual precipitation

1466 mm

yearly total

Warmest month

Aug

⌀ max 35°C

Coldest month

Jan

⌀ min 3°C

Temperatures by month

typical high (orange) · typical low (blue)

Jan

38° … 56°

Feb

41° … 60°

Mar

51° … 71°

Apr

57° … 76°

May

66° … 84°

Jun

74° … 91°

Jul

78° … 96°

Aug

78° … 96°

Sep

72° … 89°

Oct

61° … 80°

Nov

49° … 67°

Dec

45° … 62°

Precipitation by month

monthly totals across the year

Jan

84 mm

Feb

106 mm

Mar

129 mm

Apr

150 mm

May

208 mm

Jun

128 mm

Jul

81 mm

Aug

103 mm

Sep

126 mm

Oct

158 mm

Nov

118 mm

Dec

75 mm

The short version

RegionTexas

Latitude32.7831°N

Annual mean20.1°C

Annual precipitation1466 mm

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Weather map — Dallas

Dallas →

Source · 1991-2020 normals

Dallas, TX Climate