Chattanooga weather by month
Average highs run from 51°F in January to 90°F in July, and January nights average 32°F. It gets 55 inches of rain and melted snow a year and 4 inches of snow. Expect about 58 days a year at 90°F or hotter. The most comfortable months are May and September to October.
Best time to visit Chattanooga
For comfortable weather, go in May and September to October. In those months the average high stays between 62°F and 86°F, nights average 42°F or warmer, and rain stays under 4.5 inches for the month.
Month by month
| Month | High | Low | Precip. | Snow | Wet days | Days 90°F+ | Nights below 32°F | Feels |
|---|---|---|---|---|---|---|---|---|
| January | 51°F | 32°F | 5.0 in | 1.0 in | 7 | 0 | 17 | cool |
| February | 56°F | 36°F | 5.0 in | 1.2 in | 7 | 0 | 12 | cool |
| March | 64°F | 42°F | 5.3 in | 1.1 in | 8 | 0 | 5 | mild |
| April | 74°F | 50°F | 4.9 in | 0.0 in | 8 | 0 | 0 | mild |
| May | 81°F | 59°F | 3.9 in | 0.0 in | 7 | 3 | 0 | warm |
| June | 88°F | 67°F | 4.2 in | 0.0 in | 8 | 12 | 0 | hot |
| July | 91°F | 71°F | 5.1 in | 0.0 in | 8 | 19 | 0 | hot |
| August | 90°F | 70°F | 3.7 in | 0.0 in | 6 | 17 | 0 | hot |
| September | 84°F | 64°F | 4.2 in | 0.0 in | 5 | 7 | 0 | warm |
| October | 74°F | 51°F | 3.6 in | 0.0 in | 5 | 0 | 0 | mild |
| November | 62°F | 40°F | 4.8 in | 0.0 in | 6 | 0 | 7 | mild days, chilly nights |
| December | 53°F | 35°F | 5.3 in | 0.3 in | 8 | 0 | 15 | cool |
| Year | 72°F avg | 52°F avg | 55.0 in | 3.6 in | 83 | 58 | 56 |
"Wet days" are days with at least 0.1 inch of precipitation. "Feels" is a plain-language label for the average high. Normals for 1991-2020 from NOAA NCEI, station Chattanooga Lovell Airport, TN (USW00013882), 6 miles from the city center. Averages describe typical conditions, not a forecast.
Sunrise, sunset and daylight in Chattanooga
The shortest day is December 21, with 9h 47m of daylight; the longest is June 21, with 14h 31m. The earliest sunset comes around December 4 (5:28 pm) and the latest around June 26 (8:59 pm). The sun sets after 8 pm on 162 days a year.
| On the 15th of | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:49 am | 5:52 pm | 10h 04m |
| February | 7:27 am | 6:23 pm | 10h 56m |
| March | 7:51 am | 7:48 pm | 11h 57m |
| April | 7:09 am | 8:13 pm | 13h 04m |
| May | 6:37 am | 8:37 pm | 14h 00m |
| June | 6:26 am | 8:56 pm | 14h 30m |
| July | 6:38 am | 8:55 pm | 14h 17m |
| August | 7:01 am | 8:29 pm | 13h 28m |
| September | 7:24 am | 7:47 pm | 12h 23m |
| October | 7:47 am | 7:05 pm | 11h 18m |
| November | 7:16 am | 5:35 pm | 10h 19m |
| December | 7:42 am | 5:30 pm | 9h 48m |
Calculated for 2026 at the center of Chattanooga with NOAA's solar equations, in local clock time (Eastern Time, including daylight saving time where it applies). Times shift by a minute or two from year to year.
Is Chattanooga getting warmer?
The last 10 years averaged 2.1°F warmer than the 20th century. See the climate stripes for Chattanooga.Frequently asked questions
What is the warmest month in Chattanooga?
July is the warmest month, with an average high of 91°F and an average low of 71°F (NOAA 1991-2020 normals).
What is the coldest month in Chattanooga?
January is the coldest, with average lows of 32°F and highs of 51°F.
What is the rainiest month in Chattanooga?
March gets the most precipitation, 5.3 inches on average. October is the driest at 3.6 inches.
Does it snow in Chattanooga?
Yes. Chattanooga averages 4 inches of snow a year.
When is the best time to visit Chattanooga?
For comfortable weather, May and September to October. Those months average highs between 62 and 86°F with lows of 42°F or more and modest rain.
Thinking of moving to Chattanooga?
See what homes, rent and everyday prices cost, who lives there and how it compares with nearby cities on the full Chattanooga profile.
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