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The tables below display average monthly climate and weather indicators in Houston Texas.
Temperature by: Fahrenheit / Centigrade
| Houston Temperature |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Avg. Temperature |
10.2 |
12.2 |
15.9 |
20.2 |
23.6 |
26.9 |
28.1 |
27.9 |
25.7 |
20.9 |
16.1 |
11.9 |
19.9 |
| Avg. Max Temperature |
16.1 |
18.5 |
21.7 |
25.8 |
29.2 |
32.3 |
33.7 |
33.6 |
31.3 |
27.6 |
22.4 |
18.2 |
25.9 |
| Avg. Min Temperature |
4.3 |
5.9 |
10.0 |
14.5 |
18.0 |
21.4 |
22.4 |
22.2 |
19.9 |
14.2 |
9.8 |
5.7 |
14.1 |
| Days with Max Temp of 32 C or Higher |
0.0 |
< 0.5 |
< 0.5 |
1.0 |
6.0 |
20.0 |
27.0 |
26.0 |
16.0 |
3.0 |
0.0 |
0.0 |
98.0 |
| Days with Min Temp Below Freezing |
7.0 |
4.0 |
1.0 |
< 0.5 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
< 0.5 |
1.0 |
5.0 |
18.0 |
| | |
| Houston Heating and Cooling |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Heating Degree Days |
468 |
322 |
187 |
36.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
31.0 |
181 |
374 |
1599 |
| Cooling Degree Days |
16.0 |
11.0 |
50.0 |
135 |
295 |
462 |
546 |
536 |
396 |
174 |
61.0 |
18.0 |
2700 |
| | |
| Houston Precipitation |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Precipitation (inches) |
3.3 |
3.0 |
2.9 |
3.2 |
5.2 |
5.0 |
3.6 |
3.5 |
4.9 |
4.3 |
3.8 |
3.5 |
46.1 |
| Days with Precipitation 0.01 inch or More |
11.0 |
9.0 |
9.0 |
7.0 |
8.0 |
9.0 |
9.0 |
9.0 |
9.0 |
8.0 |
8.0 |
9.0 |
106 |
| Monthly Snowfall (inches) |
0.2 |
0.2 |
0.0 |
< 0.05 |
< 0.05 |
< 0.05 |
0.0 |
0.0 |
0.0 |
0.0 |
< 0.05 |
< 0.05 |
0.4 |
| | |
| Other Houston Weather Indicators |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Average Wind Speed |
8.2 |
8.7 |
9.2 |
9.1 |
8.1 |
7.5 |
6.9 |
6.2 |
6.6 |
7.0 |
7.8 |
7.7 |
7.8 |
| Clear Days |
7.0 |
7.0 |
7.0 |
7.0 |
6.0 |
7.0 |
7.0 |
6.0 |
9.0 |
11.0 |
9.0 |
7.0 |
90.0 |
| Partly Cloudy Days |
5.0 |
5.0 |
6.0 |
7.0 |
11.0 |
13.0 |
16.0 |
17.0 |
11.0 |
9.0 |
7.0 |
6.0 |
114 |
| Cloudy Days |
18.0 |
16.0 |
18.0 |
16.0 |
14.0 |
9.0 |
8.0 |
8.0 |
10.0 |
11.0 |
14.0 |
18.0 |
161 |
| Percent of Possible Sunshine |
45.0 |
50.0 |
54.0 |
58.0 |
62.0 |
68.0 |
70.0 |
68.0 |
66.0 |
64.0 |
52.0 |
51.0 |
59.0 |
| Avg. Relative Humidity |
57.5 |
76.0 |
74.5 |
75.0 |
76.0 |
77.0 |
77.0 |
75.5 |
76.0 |
76.0 |
73.5 |
74.0 |
77.0 |
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