Last spring frost
Mar 30
Frost Dates for McBee, SC
First fall frost
Nov 6
Growing season
224 days
Hardiness zone
8a
In an average year around McBee, SC, the last spring frost (32°F) is about Mar 30 and the first fall frost is about Nov 6, giving roughly a 224-day growing season. To be safe most years, wait until Mar 11 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 23 | Apr 9 | Mar 24 |
| Freeze (32°F) | Apr 13 | Mar 30 | Mar 11 |
| Hard (28°F) | Apr 2 | Mar 16 | Feb 23 |
| Severe (24°F) | Mar 23 | Mar 1 | Jan 31 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 23 | Apr 19 | Apr 16 | Apr 12 | Apr 9 | Apr 7 | Apr 2 | Mar 30 | Mar 24 |
| 32°F | Apr 13 | Apr 8 | Apr 4 | Apr 1 | Mar 30 | Mar 25 | Mar 21 | Mar 18 | Mar 11 |
| 28°F | Apr 2 | Mar 29 | Mar 24 | Mar 19 | Mar 16 | Mar 13 | Mar 8 | Mar 2 | Feb 23 |
| 24°F | Mar 23 | Mar 16 | Mar 11 | Mar 6 | Mar 1 | Feb 25 | Feb 18 | Feb 10 | Jan 31 |
| 20°F | Mar 11 | Mar 2 | Feb 26 | Feb 18 | Feb 8 | Feb 2 | Jan 29 | Jan 20 | Jan 8 |
| 16°F | Feb 28 | Feb 17 | Feb 6 | Jan 31 | Jan 29 | Jan 22 | Jan 17 | Jan 10 | 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 16 | Oct 30 | Nov 10 |
| Freeze (32°F) | Oct 26 | Nov 6 | Nov 23 |
| Hard (28°F) | Nov 3 | Nov 18 | Dec 10 |
| Severe (24°F) | Nov 13 | Dec 2 | Jan 5 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 16 | Oct 21 | Oct 25 | Oct 27 | Oct 30 | Nov 1 | Nov 3 | Nov 6 | Nov 10 |
| 32°F | Oct 26 | Oct 30 | Nov 1 | Nov 4 | Nov 6 | Nov 10 | Nov 13 | Nov 17 | Nov 23 |
| 28°F | Nov 3 | Nov 8 | Nov 12 | Nov 15 | Nov 18 | Nov 21 | Nov 26 | Dec 1 | Dec 10 |
| 24°F | Nov 13 | Nov 18 | Nov 23 | Nov 28 | Dec 2 | Dec 9 | Dec 17 | Dec 27 | Jan 5 |
| 20°F | Nov 26 | Dec 4 | Dec 13 | Dec 22 | Dec 30 | Jan 3 | Jan 8 | Jan 15 | Jan 27 |
| 16°F | Dec 12 | Dec 24 | Jan 1 | Jan 5 | Jan 10 | Jan 14 | Jan 19 | Jan 26 | Feb 3 |
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: Hartsville, Sc, about 12.7 miles away@if(!empty($station['elevation_ft'])), at 185 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 McBee, SC?
On average, the last spring frost (32°F) around McBee, SC is about Mar 30. In cooler years it can run later, so for a safer bet many gardeners wait until Mar 11.
When is the first frost in the fall?
The first fall frost around McBee, SC typically arrives about Nov 6. 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 30 on average, or Mar 11 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 224 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 29101 Planting calendar → South Carolina frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026