Houston Weather by Month
| Month | High / Low °F (°C) | Rainy days | Rain (in) |
|---|---|---|---|
| January | 63.8 (17.7) / 46.1 (7.8) | 10.2 | 4.09 |
| February | 67.6 (19.8) / 50.1 (10.1) | 8.9 | 2.85 |
| March | 73.4 (23.0) / 55.9 (13.3) | 8.3 | 3.28 |
| April | 79.3 (26.3) / 61.8 (16.6) | 8 | 4.08 |
| May | 85.9 (29.9) / 69.3 (20.7) | 7.7 | 5.42 |
| June | 91 (32.8) / 74.9 (23.8) | 10.4 | 6.09 |
| July | 92.9 (33.8) / 76.6 (24.8) | 9.2 | 4.59 |
| August | 93.5 (34.2) / 76.7 (24.8) | 9.6 | 5.44 |
| September | 89.3 (31.8) / 72.9 (22.7) | 9.8 | 5.76 |
| October | 82.1 (27.8) / 63.9 (17.7) | 7.2 | 5.78 |
| November | 72.6 (22.6) / 54 (12.2) | 8.4 | 3.90 |
| December | 65.7 (18.7) / 48 (8.9) | 9.5 | 4.34 |
A month-by-month planning table for Houston built on the NOAA 1991-2020 climate normals recorded at William P. Hobby Airport - the official 30-year averages, not a forecast. Pick any month for the typical high and low in Fahrenheit and Celsius, how many days usually see rain, and how much rain falls.
Houston has no dry season - every month averages 2.85 inches of rain or more - but the rain comes in fast, heavy bursts rather than all-day strings: 8-10 rain days a month carry roughly 55 inches a year. The real seasonal switch is heat: February through April sit in the 67-86 F window, then June through September run 91-94 F highs with lows that never leave the 70s.
How to use
- Pick your month from the dropdown.
- Read the typical high/low in F and C, rain days and monthly rainfall, plus the packing line.
- Cross-check the full 12-month table below when your dates are flexible.
Frequently asked questions
When is the best time to visit Houston?
February through April: highs run 67.6-85.9 F with 8-9 rain days a month and the year's lightest rain (2.85-4.08 inches). October is the autumn runner-up - 82.1/63.9 F - though it carries 5.78 inches, mostly from late-season tropical systems.
How bad is Houston humidity in summer?
It is the defining fact of the season: June through September average 91-94 F highs with lows in the mid-70s, and Gulf moisture keeps the heat index well above the air temperature most afternoons. Locals schedule outdoor life before 11 am; the table's temperature is what the thermometer says, not what your body feels.
When is hurricane season in Houston?
June 1 through November 30, peaking August-September. Harvey (August 2017) is the benchmark: roughly 50 inches of rain over the metro in days, the wettest tropical cyclone on record for the U.S. Storms are not annual events, but the season shapes insurance and planning more than any other month-to-month weather fact.
Does it snow in Houston?
Almost never: measurable snow lands a few times per decade, and the famous winter events were ice, not snow - the February 2021 Uri freeze iced roads and collapsed the power grid. A typical January runs 63.8/46.1 F; hard freezes (sub-30 F lows) happen a handful of nights a year.
Why does Houston flood so often?
Volume plus geography: about 55 inches of rain a year, much of it in multi-inch bursts, falling onto flat clay-soil prairie along slow-moving bayous. June (6.09 inches) and the tropical-season months are the watch windows; the flood risk is about rain rates, not river gauges.
What is the driest month in Houston?
February, and only relatively: 2.85 inches over 8.9 rain days. There is no true dry season - even the lightest month out-rains Seattle's wettest - so pack a compact umbrella year-round and treat afternoon downpours as routine, not exceptions.