Last spring frost
Mar 19
Frost Dates for Lamar, SC
First fall frost
Nov 15
Growing season
241 days
Hardiness zone
8b
In an average year around Lamar, SC, the last spring frost (32°F) is about Mar 19 and the first fall frost is about Nov 15, giving roughly a 241-day growing season. To be safe most years, wait until Feb 28 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) | Apr 15 | Mar 31 | Mar 15 |
| Freeze (32°F) | Apr 4 | Mar 19 | Feb 28 |
| Hard (28°F) | Mar 25 | Mar 5 | Feb 7 |
| Severe (24°F) | Mar 13 | Feb 15 | Jan 16 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 15 | Apr 10 | Apr 6 | Apr 3 | Mar 31 | Mar 29 | Mar 25 | Mar 20 | Mar 15 |
| 32°F | Apr 4 | Mar 30 | Mar 26 | Mar 23 | Mar 19 | Mar 16 | Mar 12 | Mar 7 | Feb 28 |
| 28°F | Mar 25 | Mar 19 | Mar 14 | Mar 10 | Mar 5 | Mar 1 | Feb 25 | Feb 18 | Feb 7 |
| 24°F | Mar 13 | Mar 5 | Feb 28 | Feb 23 | Feb 15 | Feb 7 | Feb 2 | Jan 27 | Jan 16 |
| 20°F | Mar 2 | Feb 21 | Feb 9 | Feb 2 | Jan 30 | Jan 25 | Jan 18 | Jan 12 | Jan 3 |
| 16°F | Feb 17 | Feb 4 | Jan 31 | Jan 26 | Jan 23 | Jan 18 | Jan 14 | Jan 9 | Jan 1 |
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 21 | Nov 2 | Nov 18 |
| Freeze (32°F) | Oct 31 | Nov 15 | Dec 6 |
| Hard (28°F) | Nov 11 | Dec 1 | Jan 1 |
| Severe (24°F) | Nov 23 | Dec 22 | Jan 21 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 21 | Oct 25 | Oct 28 | Oct 31 | Nov 2 | Nov 5 | Nov 8 | Nov 13 | Nov 18 |
| 32°F | Oct 31 | Nov 4 | Nov 8 | Nov 11 | Nov 15 | Nov 19 | Nov 24 | Dec 1 | Dec 6 |
| 28°F | Nov 11 | Nov 16 | Nov 22 | Nov 27 | Dec 1 | Dec 5 | Dec 12 | Dec 21 | Jan 1 |
| 24°F | Nov 23 | Dec 2 | Dec 7 | Dec 14 | Dec 22 | Dec 29 | Jan 3 | Jan 10 | Jan 21 |
| 20°F | Dec 9 | Dec 21 | Dec 29 | Jan 3 | Jan 9 | Jan 14 | Jan 18 | Jan 26 | Feb 5 |
| 16°F | Dec 24 | Jan 1 | Jan 7 | Jan 11 | Jan 16 | Jan 19 | Jan 25 | Jan 30 | Feb 9 |
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: Elliott 0.8 Nw, Sc, about 6.1 miles away@if(!empty($station['elevation_ft'])), at 173 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 Lamar, SC?
On average, the last spring frost (32°F) around Lamar, SC is about Mar 19. In cooler years it can run later, so for a safer bet many gardeners wait until Feb 28.
When is the first frost in the fall?
The first fall frost around Lamar, SC typically arrives about Nov 15. 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 Mar 19 on average, or Feb 28 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 241 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 29069 Planting calendar → South Carolina frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026