Frost dates for Georgetown Co Airport, SC
At Georgetown Co Airport, the median last spring frost (32°F) is Mar 12 and the median first fall frost is Nov 24, for a typical growing season of 258 days. For a 90% chance that the last frost has passed, wait until Mar 30. Nearby ZIP codes are in USDA hardiness zone 8b.
- Mar 12Last spring frost (median)50% chance of 32°F after this date
- Mar 30Safer planting date10% chance of 32°F after this date
- Nov 24First fall frost (median)50% chance of 32°F by this date
- 258 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 8 | Mar 25 | Apr 8 |
| 32°F | Feb 18 | Mar 12 | Mar 30 |
| 28°F | Jan 25 | Feb 25 | Mar 19 |
| 24°F | Dec 31 | Jan 31 | Mar 4 |
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 29 | Nov 10 | Nov 29 |
| 32°F | Nov 6 | Nov 24 | Dec 19 |
| 28°F | Nov 17 | Dec 10 | Jan 9 |
| 24°F | Dec 2 | Jan 1 | Jan 30 |
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 | 211 days | 231 days | 256 days |
| 32°F | 231 days | 258 days | 291 days |
| 28°F | 259 days | 293 days | 329 days |
| 24°F | 292 days | 329 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 99% |
| 24°F | 89% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 29440 | 8b | 15 to 20°F | 7 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 USC00383470, at 33.3169, -79.3228, elevation 9 m (30 ft).
- Data quality: Representative (10+ years), 14 years of freeze data.
- Average days per year at or below 32°F: 33.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- McClellanville 7 NE (19 km)
- Andrews (27 km)
- McClellanville (31 km)
- Brookgreen Gardens (31 km)
- Jamestown (35 km)
- Hemingway 8 ESE (41 km)
- Kingstree (62 km)
- Moncks Corner 4 N (62 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