Rainy days · Texas
How often does it rain in Houston?
Houston’s rain is heavy enough to make the humidity look like the warm-up act.
Houston gets measurable rain or snow on about 104 days a year, adding up to about 52 inches.
November usually brings Houston about 8 wet days and 3.9 inches. The wettest month is usually January, with about 10 wet days, and the driest is April, with about 7 wet days. That makes Houston number 87 of the 129 US cities we track, rainiest first.
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Rainy days, month by month
| Month | Wet days | Inches |
|---|---|---|
| January | 10 | 3.8 |
| February | 9 | 3.0 |
| March | 9 | 3.5 |
| April | 7 | 4.0 |
| May | 9 | 5.0 |
| June | 10 | 6.0 |
| July | 9 | 3.8 |
| August | 9 | 4.8 |
| September | 8 | 4.7 |
| October | 8 | 5.5 |
| November | 8 | 3.9 |
| December | 10 | 4.0 |
Cities with about as many rainy days
- Sioux Falls, South Dakota: about 104 wet days a year
- Kansas City, Missouri: about 104 wet days a year
- Medford, Oregon: about 103 wet days a year
Source: NOAA daily precipitation records for the Houston area, 1991 to 2020 (at least 30 complete years behind every month), via the Applied Climate Information System. A wet day here means at least a hundredth of an inch of rain or melted snow.