Last spring frost
Apr 10
Frost Dates for South Carthage, TN
First fall frost
Oct 29
Growing season
201 days
Hardiness zone
7b
In an average year around South Carthage, TN, the last spring frost (32°F) is about Apr 10 and the first fall frost is about Oct 29, giving roughly a 201-day growing season. To be safe most years, wait until Mar 26 before setting out tender plants.
Last spring frost
Dates the last frost of spring typically ends. Plant tender crops after the risk has passed for your comfort level.
| Frost intensity | Early (10%) | Average (50%) | Late (90%) |
|---|---|---|---|
| Light (36°F) | May 9 | Apr 23 | Apr 9 |
| Freeze (32°F) | Apr 27 | Apr 10 | Mar 26 |
| Hard (28°F) | Apr 14 | Mar 30 | Mar 9 |
| Severe (24°F) | Apr 4 | Mar 16 | Feb 24 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | May 9 | May 4 | Apr 30 | Apr 27 | Apr 23 | Apr 20 | Apr 16 | Apr 12 | Apr 9 |
| 32°F | Apr 27 | Apr 21 | Apr 17 | Apr 13 | Apr 10 | Apr 7 | Apr 4 | Mar 31 | Mar 26 |
| 28°F | Apr 14 | Apr 8 | Apr 5 | Apr 2 | Mar 30 | Mar 26 | Mar 22 | Mar 17 | Mar 9 |
| 24°F | Apr 4 | Mar 30 | Mar 24 | Mar 20 | Mar 16 | Mar 12 | Mar 7 | Mar 2 | Feb 24 |
| 20°F | Mar 24 | Mar 16 | Mar 11 | Mar 6 | Mar 2 | Feb 26 | Feb 20 | Feb 13 | Feb 4 |
| 16°F | Mar 10 | Mar 1 | Feb 24 | Feb 18 | Feb 13 | Feb 7 | Feb 2 | Jan 29 | Jan 19 |
First fall frost
Dates the first frost of fall typically arrives. Count back by a crop's days-to-maturity to know your planting cutoff.
| Frost intensity | Early (10%) | Average (50%) | Late (90%) |
|---|---|---|---|
| Light (36°F) | Oct 8 | Oct 20 | Nov 1 |
| Freeze (32°F) | Oct 17 | Oct 29 | Nov 11 |
| Hard (28°F) | Oct 26 | Nov 8 | Nov 24 |
| Severe (24°F) | Nov 5 | Nov 20 | Dec 8 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 8 | Oct 12 | Oct 15 | Oct 18 | Oct 20 | Oct 23 | Oct 25 | Oct 28 | Nov 1 |
| 32°F | Oct 17 | Oct 22 | Oct 24 | Oct 27 | Oct 29 | Nov 1 | Nov 2 | Nov 6 | Nov 11 |
| 28°F | Oct 26 | Oct 31 | Nov 3 | Nov 5 | Nov 8 | Nov 11 | Nov 14 | Nov 18 | Nov 24 |
| 24°F | Nov 5 | Nov 10 | Nov 13 | Nov 17 | Nov 20 | Nov 24 | Nov 29 | Dec 2 | Dec 8 |
| 20°F | Nov 13 | Nov 20 | Nov 26 | Dec 1 | Dec 3 | Dec 8 | Dec 14 | Dec 22 | Dec 30 |
| 16°F | Nov 28 | Dec 4 | Dec 10 | Dec 18 | Dec 23 | Dec 29 | Jan 1 | Jan 8 | Jan 18 |
Growing season is measured at 32°F with about 50% probability. Hardiness zone from the 2023 USDA map; frost normals from NOAA 1991-2020.
Where this data comes from
@endif These dates are computed from the nearest official weather station with long-term records: Carthage, Tn, about 4.9 miles away@if(!empty($station['elevation_ft'])), at 515 ft elevation. The further the station and the greater the elevation difference from your yard, the more your local frost timing can vary.
How we calculate these dates
Frost and freeze dates come from the NOAA 1991–2020 U.S. Climate Normals, the National Oceanic and Atmospheric Administration's 30-year averages for each weather station. A date shown at the 50% level is the median: in half of years the frost falls on or before it. The 10% and 90% columns show the early and late ends of the range, so you can plant on the odds you're comfortable with. These are long-term averages, not a forecast for this year - always check your local outlook before planting.
Source: NOAA National Centers for Environmental Information, 1991–2020 Climate Normals (public domain). Harman is not affiliated with or endorsed by NOAA.
Frequently asked questions
When is the last frost in South Carthage, TN?
On average, the last spring frost (32°F) around South Carthage, TN is about Apr 10. In cooler years it can run later, so for a safer bet many gardeners wait until Mar 26.
When is the first frost in the fall?
The first fall frost around South Carthage, TN typically arrives about Oct 29. Count back by a crop's days to maturity to find the latest date you can plant it.
When can I plant tomatoes and other tender crops?
Tender crops like tomatoes, peppers and basil are damaged by frost, so wait until the last spring frost has passed - around Apr 10 on average, or Mar 26 to be safe most years.
How long is the growing season here?
The frost-free growing season (between the last spring and first fall 32°F frost) is about 201 days in a typical year.
Are these dates a forecast for this year?
No. They are 30-year averages from the NOAA 1991–2020 Climate Normals, not a prediction for the current year. Use them for planning and always check your local weather forecast before planting or protecting crops.
Local weather for 38563 Planting calendar → Tennessee frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026