Houston weather by month

Check out Houston weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature in Houston (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
15°C maximum daytime temperature in January in Houston15
17°C maximum daytime temperature in February in Houston17
21°C maximum daytime temperature in March in Houston21
25°C maximum daytime temperature in April in Houston25
28°C maximum daytime temperature in May in Houston28
31°C maximum daytime temperature in June in Houston31
33°C maximum daytime temperature in July in Houston33
33°C maximum daytime temperature in August in Houston33
30°C maximum daytime temperature in September in Houston30
26°C maximum daytime temperature in October in Houston26
21°C maximum daytime temperature in November in Houston21
17°C maximum daytime temperature in December in Houston17
Min temperature (night-time)
6°C minimum night-time temperature in January in Houston6
8°C minimum night-time temperature in February in Houston8
12°C minimum night-time temperature in March in Houston12
16°C minimum night-time temperature in April in Houston16
19°C minimum night-time temperature in May in Houston19
23°C minimum night-time temperature in June in Houston23
24°C minimum night-time temperature in July in Houston24
24°C minimum night-time temperature in August in Houston24
21°C minimum night-time temperature in September in Houston21
16°C minimum night-time temperature in October in Houston16
12°C minimum night-time temperature in November in Houston12
8°C minimum night-time temperature in December in Houston8
Heat & Humidity
No heat & humidity in January in Houston0
No heat & humidity in February in Houston0
No heat & humidity in March in Houston0
Low heat & humidity in April in HoustonL
Moderate heat & humidity in May in HoustonM
Very high heat & humidity in June in HoustonVH
Very high heat & humidity in July in HoustonVH
Very high heat & humidity in August in HoustonVH
High heat & humidity in September in HoustonH
Low heat & humidity in October in HoustonL
No heat & humidity in November in Houston0
No heat & humidity in December in Houston0

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & Daylight in Houston

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
10 hours of daylight per day in January in Houston10
11 hours of daylight per day in February in Houston11
12 hours of daylight per day in March in Houston12
13 hours of daylight per day in April in Houston13
14 hours of daylight per day in May in Houston14
14 hours of daylight per day in June in Houston14
14 hours of daylight per day in July in Houston14
13 hours of daylight per day in August in Houston13
12 hours of daylight per day in September in Houston12
11 hours of daylight per day in October in Houston11
11 hours of daylight per day in November in Houston11
10 hours of daylight per day in December in Houston10
UV Index (Maximum)
UV (maximum) index 4 (Moderate) in January in Houston4
UV (maximum) index 6 (High) in February in Houston6
UV (maximum) index 8 (Very High) in March in Houston8
UV (maximum) index 10 (Very High) in April in Houston10
UV (maximum) index 10 (Very High) in May in Houston10
UV (maximum) index 11 (Extreme) in June in Houston11
UV (maximum) index 11 (Extreme) in July in Houston11
UV (maximum) index 10 (Very High) in August in Houston10
UV (maximum) index 9 (Very High) in September in Houston9
UV (maximum) index 7 (High) in October in Houston7
UV (maximum) index 5 (Moderate) in November in Houston5
UV (maximum) index 4 (Moderate) in December in Houston4

Rainfall in Houston

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
10 days with some rainfall in January in Houston10
8 days with some rainfall in February in Houston8
9 days with some rainfall in March in Houston9
6 days with some rainfall in April in Houston6
8 days with some rainfall in May in Houston8
8 days with some rainfall in June in Houston8
9 days with some rainfall in July in Houston9
9 days with some rainfall in August in Houston9
9 days with some rainfall in September in Houston9
7 days with some rainfall in October in Houston7
8 days with some rainfall in November in Houston8
9 days with some rainfall in December in Houston9
Average monthly rainfall (mm)
84 mm monthly rainfall in January in Houston84
73 mm monthly rainfall in February in Houston73
66 mm monthly rainfall in March in Houston66
78 mm monthly rainfall in April in Houston78
118 mm monthly rainfall in May in Houston118
132 mm monthly rainfall in June in Houston132
93 mm monthly rainfall in July in Houston93
100 mm monthly rainfall in August in Houston100
123 mm monthly rainfall in September in Houston123
93 mm monthly rainfall in October in Houston93
87 mm monthly rainfall in November in Houston87
80 mm monthly rainfall in December in Houston80

More about Houston

Houston by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for Texas (Houston) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in Houston?

Houston has a temperate climate with hot summers and some rainfall in all months.

Metric (°C / mm)  |  Imperial (°F / inches)

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Tropical storm risk: Houston, Texas hurricane season

% of month affected by tropical storms
0
0
0
0
0
1.3%
1.2%
2%
2.9%
0
0
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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More about the USA

Compare Houston with the USA

Below the Houston chart shows average maximum daytime temperature for Houston, Texas, USA and the USA (Washington).

Maximum daytime temperature (°C)

Houston, Texas, USA
USA (Washington)
15
5
17
7
21
13
25
19
28
24
31
29
33
31
33
30
30
26
26
20
21
14
17
8
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C / mm)  |  Imperial (°F / inches)

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