Rainy days · Tennessee
How often does it rain in Chattanooga?
Chattanooga gets one of the biggest rain totals we track and uses every drop on the scenery.
Chattanooga gets measurable rain or snow on about 123 days a year, adding up to about 55 inches.
November usually brings Chattanooga about 9 wet days and 4.8 inches. The wettest month is usually July, with about 12 wet days, and the driest is September, with about 8 wet days. That makes Chattanooga number 46 of the 129 US cities we track, rainiest first.
Last updated
No rain in the forecast for the next 48 hours.
Live 48-hour check from OpenWeatherMap, refreshed about every half hour. Alerts from the National Weather Service.
Rainy days, month by month
| Month | Wet days | Inches |
|---|---|---|
| January | 11 | 5.0 |
| February | 11 | 5.0 |
| March | 11 | 5.3 |
| April | 10 | 4.9 |
| May | 11 | 3.9 |
| June | 11 | 4.2 |
| July | 12 | 5.1 |
| August | 9 | 3.7 |
| September | 8 | 4.2 |
| October | 8 | 3.6 |
| November | 9 | 4.8 |
| December | 11 | 5.3 |
Cities with about as many rainy days
- Newark, New Jersey: about 123 wet days a year
- Nashville, Tennessee: about 123 wet days a year
- Missoula, Montana: about 124 wet days a year
Source: NOAA daily precipitation records for the Chattanooga 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.