Frost dates for Hartsville, SC
At Hartsville, the median last spring frost (32°F) is Mar 30 and the median first fall frost is Nov 6, for a typical growing season of 224 days. For a 90% chance that the last frost has passed, wait until Apr 13. Nearby ZIP codes are in USDA hardiness zones 8a to 8b.
- Mar 30Last spring frost (median)50% chance of 32°F after this date
- Apr 13Safer planting date10% chance of 32°F after this date
- Nov 6First fall frost (median)50% chance of 32°F by this date
- 224 daysGrowing season (median)between 32°F freezes
Last spring frost dates
The chance that the temperature drops to the threshold after each date.
| Temperature | 90% chance later | 50% chance later | 10% chance later |
|---|---|---|---|
| 36°F | Mar 24 | Apr 9 | Apr 23 |
| 32°F | Mar 11 | Mar 30 | Apr 13 |
| 28°F | Feb 23 | Mar 16 | Apr 2 |
| 24°F | Jan 31 | Mar 1 | Mar 23 |
First fall frost dates
The chance that the temperature has dropped to the threshold by each date.
| Temperature | 10% chance by | 50% chance by | 90% chance by |
|---|---|---|---|
| 36°F | Oct 16 | Oct 30 | Nov 10 |
| 32°F | Oct 26 | Nov 6 | Nov 23 |
| 28°F | Nov 3 | Nov 18 | Dec 10 |
| 24°F | Nov 13 | Dec 2 | Jan 5 |
Growing season length
Days between the last spring and first fall freeze, as the length reached in 9, 5 and 1 out of 10 years.
| Temperature | 9 in 10 years at least | 5 in 10 years at least | 1 in 10 years at least |
|---|---|---|---|
| 36°F | 185 days | 203 days | 222 days |
| 32°F | 201 days | 224 days | 248 days |
| 28°F | 223 days | 249 days | 278 days |
| 24°F | 247 days | 280 days | 316 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 100% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 29550 | 8b | 15 to 20°F | 3 km |
| 29079 | 8b | 15 to 20°F | 13 km |
| 29101 | 8a | 10 to 15°F | 20 km |
| 29593 | 8b | 15 to 20°F | 21 km |
Not the official USDA Plant Hardiness Zone Map. Zones shown here are the values published in the USDA-ARS / Oregon State University PRISM Group 2023 ZIP code tables, shown unaltered. For the official interactive map, visit planthardiness.ars.usda.gov.
About this station
- NOAA station ID USC00383990, at 34.3950, -80.0486, elevation 56 m (185 ft).
- Data quality: Standard (24+ years of data), 26 years of freeze data.
- Average days per year at or below 32°F: 62.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Darlington (19 km)
- Bishopville 1ene (26 km)
- Florence 8 NE (31 km)
- Elliott 0.8 NW (33 km)
- Chesterfield 3 E (37 km)
- Cheraw (37 km)
- Florence Regional Airport (38 km)
- Pageland (50 km)
Sources
- NOAA National Centers for Environmental Information, U.S. Climate Normals 1991–2020, annual/seasonal normals by station (version 1.0.1), file dated June 27, 2023; documentation.
- USDA Agricultural Research Service and PRISM Group, Oregon State University, 2023 Plant Hardiness Zone Map ZIP code tables (CONUS, Alaska, Hawaii, Puerto Rico), files dated November 17, 2023. Data © PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed November 1, 2026. Official map: planthardiness.ars.usda.gov.
- U.S. Census Bureau, 2024 Gazetteer ZIP Code Tabulation Areas file, dated August 30, 2024 (ZIP centroids used to find the nearest station).
Freeze dates are 30-year probabilities, not forecasts. Check your local forecast before planting tender plants.
All South Carolina stations · How frost dates are calculated