Last updated: March 2, 2024
Under the Köppen–Geiger climate classification Houston features a humid subtropical climate (Cfa). Temperatures typically range between 1 °C (35 °F) and 26 °C (78 °F) through the year, but rarely can drop to -23 °C (-9 °F) or can rise to as high as 37 °C (98 °F). The average annual precipitation amounts to about 1198 mm (47.2 inches) and receives 118 rainy days on the 1 mm (0.04 inches) threshold annually. Houston enjoys an average of 3018 hours of sunshine throughout the year, and daylight varies from 9 hours 37 minutes to 14 hours 40 minutes per day.
The warmest months in Houston are June, July and August, with daily mean temperatures ranging from 23 to 26 °C (74 - 78 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 1 to 5 °C (35 - 41 °F) throughout the day. On average each year, Houston experiences 116 days above 25 °C (77.0 °F) and 75 days below 0 °C (32.0 °F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum | 20°C (68°F) |
26°C (78°F) |
29°C (84°F) |
30°C (86°F) |
33°C (91°F) |
37°C (98°F) |
37°C (98°F) |
35°C (96°F) |
34°C (94°F) |
33°C (91°F) |
28°C (82°F) |
25°C (77°F) |
| Mean maximum | 18°C (64°F) |
22°C (73°F) |
25°C (78°F) |
27°C (82°F) |
30°C (86°F) |
32°C (90°F) |
35°C (95°F) |
34°C (94°F) |
33°C (92°F) |
31°C (87°F) |
23°C (73°F) |
21°C (69°F) |
| Average high | 6°C (43°F) |
9°C (48°F) |
15°C (58°F) |
18°C (65°F) |
23°C (74°F) |
28°C (83°F) |
31°C (88°F) |
29°C (85°F) |
28°C (83°F) |
20°C (69°F) |
13°C (56°F) |
10°C (50°F) |
| Daily mean | 1°C (35°F) |
3°C (38°F) |
9°C (48°F) |
13°C (55°F) |
18°C (65°F) |
23°C (74°F) |
26°C (78°F) |
24°C (76°F) |
22°C (72°F) |
15°C (58°F) |
7°C (45°F) |
5°C (41°F) |
| Average low | -3°C (27°F) |
-2°C (29°F) |
4°C (39°F) |
7°C (45°F) |
14°C (57°F) |
19°C (66°F) |
21°C (70°F) |
19°C (67°F) |
17°C (62°F) |
10°C (49°F) |
2°C (36°F) |
0°C (33°F) |
| Mean minimum | -13°C (8°F) |
-14°C (7°F) |
-7°C (20°F) |
-2°C (28°F) |
6°C (43°F) |
14°C (57°F) |
16°C (62°F) |
14°C (58°F) |
9°C (49°F) |
-1°C (30°F) |
-7°C (20°F) |
-9°C (16°F) |
| Minimum | -19°C (-1°F) |
-23°C (-9°F) |
-16°C (4°F) |
-5°C (22°F) |
2°C (36°F) |
11°C (52°F) |
15°C (59°F) |
13°C (56°F) |
7°C (45°F) |
-5°C (23°F) |
-12°C (10°F) |
-14°C (8°F) |
Compare temperature, precipitation, sunshine, UV index in Houston, Missouri, United States with other places around the world.
Houston usually has the most precipitation in March, April and May, with an average of 13 rainy days and 165 mm (6.5 inches) of precipitation per month. The driest months in Houston are June, September and December. On average, 57 mm (2.3 inches) of precipitation falls during these months.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average precipitation mm (inches) | 73 (2.9) | 100 (3.9) | 138 (5.4) | 170 (6.7) | 188 (7.4) | 67 (2.7) | 75 (2.9) | 97 (3.8) | 42 (1.6) | 117 (4.6) | 68 (2.7) | 63 (2.5) |
| Average precipitation days (≥ 1 mm) | 8 | 9 | 12 | 13 | 15 | 10 | 10 | 11 | 5 | 10 | 8 | 7 |
The sunniest months in Houston are June, July and August, when the sun shines an average of 10 hours 51 minutes a day. Least sunny months in Houston: January, February and December receive an average of 5 hours 46 minutes of sunshine daily.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean monthly sunshine hours | 141 | 179 | 211 | 241 | 283 | 330 | 347 | 322 | 292 | 242 | 221 | 205 |
| Mean daily daylight hours | 9h 54m | 10h 49m | 11h 59m | 13h 10m | 14h 11m | 14h 40m | 14h 24m | 13h 30m | 12h 22m | 11h 10m | 10h 8m | 9h 37m |
Houston experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 11 - 11, which corresponds to the Extreme category of sun exposure. January, November and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 5. For more detailed information, check out our hourly Houston UV Index data.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV Index (month maximum) | 3 | 6 | 7 | 10 | 11 | 11 | 11 | 10 | 9 | 7 | 5 | 3 |
Discover in-depth weather details for every month in Houston. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Houston's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.
Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.