Frost dates for McClellanville 7 NE, SC
At McClellanville 7 NE, the median last spring frost (32°F) is Feb 28 and the median first fall frost is Dec 1, for a typical growing season of 277 days. For a 90% chance that the last frost has passed, wait until Mar 25. Nearby ZIP codes are in USDA hardiness zones 8b to 9a.
- Feb 28Last spring frost (median)50% chance of 32°F after this date
- Mar 25Safer planting date10% chance of 32°F after this date
- Dec 1First fall frost (median)50% chance of 32°F by this date
- 277 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 | Feb 24 | Mar 19 | Apr 6 |
| 32°F | Feb 1 | Feb 28 | Mar 25 |
| 28°F | Jan 11 | Feb 6 | Mar 9 |
| 24°F | Dec 31 | Jan 25 | Feb 24 |
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 | Nov 2 | Nov 15 | Dec 6 |
| 32°F | Nov 11 | Dec 1 | Dec 31 |
| 28°F | Nov 27 | Dec 25 | Jan 23 |
| 24°F | Dec 9 | Jan 7 | Feb 1 |
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 | 220 days | 246 days | 275 days |
| 32°F | 247 days | 277 days | 310 days |
| 28°F | 276 days | 312 days | 347 days |
| 24°F | 308 days | 345 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 98% |
| 24°F | 72% |
Closest ZIP codes (each is closer to another station)
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 29458 | 9a | 20 to 25°F | 12 km |
| 29453 | 8b | 15 to 20°F | 24 km |
| 29440 | 8b | 15 to 20°F | 26 km |
| 29429 | 9a | 20 to 25°F | 36 km |
| 29450 | 8b | 15 to 20°F | 39 km |
| 29510 | 8b | 15 to 20°F | 41 km |
| 29434 | 8b | 15 to 20°F | 45 km |
| 29466 | 9a | 20 to 25°F | 50 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 USW00003728, at 33.1533, -79.3636, elevation 3 m (9 ft).
- Data quality: Representative (10+ years), 18 years of freeze data.
- Average days per year at or below 32°F: 20.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- McClellanville (14 km)
- Georgetown Co Airport (19 km)
- Jamestown (34 km)
- Andrews (37 km)
- Brookgreen Gardens (48 km)
- Hemingway 8 ESE (58 km)
- Moncks Corner 4 N (59 km)
- Sullivans Island (63 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