Frost dates for Chattanooga, Tennessee
In a typical year, Chattanooga’s last spring frost lands around Mar 31 and the first fall frost around Nov 6, a growing season of about 220 days. These are odds drawn from 30-year NOAA climate normals, not a promise. USDA zone 8a.
Right now the growing season is open, with about 12 days until the typical first fall frost.
| Odds | Last spring frost | First fall frost |
|---|---|---|
| 10 percent | Mar 15 | Oct 24 |
| 50 percent | Mar 31 | Nov 6 |
| 90 percent | Apr 18 | Nov 26 |
A 10 percent year is an early year, a 90 percent year a late one. Frost-sensitive planting usually waits for the 90 percent side of the last-frost band.
Soil in Chattanooga is typically around 57°F at 4 inches this time of year, estimated from the last two weeks of normal air temperatures.
Plantable now in Chattanooga
- Garlic (Music)
Timing comes from the same temperature engine the app uses, run against Chattanooga’s normals for today.
Common questions
When is the last frost in Chattanooga, Tennessee?
Chattanooga’s last spring frost falls around March 31 in a typical year. One year in ten it is done by March 15, and one year in ten frost holds on until April 18. Frost-sensitive planting usually waits for the late side of that band.
When is the first fall frost in Chattanooga?
The first fall frost arrives around November 6 in a typical year, as early as October 24 in an early year and as late as November 26 in a late one.
How long is the growing season in Chattanooga?
About 220 days, counted between the typical last spring frost and the typical first fall frost.
What USDA zone is Chattanooga in?
Chattanooga is in USDA hardiness zone 8a under the 2023 USDA Plant Hardiness Zone Map.
Dates come from 30-year NOAA climate normals for the nearest reporting station. They describe odds, not a forecast.
Nearby cities
- Rome, GA (around Apr 1 to Nov 3)
- Huntsville, AL (around Apr 4 to Oct 30)
- Cookeville, TN (around Apr 14 to Oct 25)
- Gadsden, AL (around Mar 19 to Nov 13)
- Murfreesboro, TN (around Apr 9 to Oct 27)
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