Frost dates for Greenville Dwtn Airport, SC
At Greenville Dwtn Airport, the median last spring frost (32°F) is Mar 16 and the median first fall frost is Nov 20, for a typical growing season of 250 days. For a 90% chance that the last frost has passed, wait until Apr 2. Nearby ZIP codes are in USDA hardiness zone 8a.
- Mar 16Last spring frost (median)50% chance of 32°F after this date
- Apr 2Safer planting date10% chance of 32°F after this date
- Nov 20First fall frost (median)50% chance of 32°F by this date
- 250 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 13 | Mar 29 | Apr 14 |
| 32°F | Feb 26 | Mar 16 | Apr 2 |
| 28°F | Feb 5 | Mar 3 | Mar 22 |
| 24°F | Jan 17 | Feb 12 | Mar 13 |
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 25 | Nov 7 | Nov 23 |
| 32°F | Nov 4 | Nov 20 | Dec 7 |
| 28°F | Nov 16 | Dec 3 | Jan 1 |
| 24°F | Nov 29 | Dec 22 | Jan 19 |
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 | 203 days | 225 days | 248 days |
| 32°F | 226 days | 250 days | 275 days |
| 28°F | 249 days | 278 days | 311 days |
| 24°F | 274 days | 310 days | 344 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 98% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 29614 | 8a | 10 to 15°F | 3 km |
| 29615 | 8a | 10 to 15°F | 5 km |
| 29609 | 8a | 10 to 15°F | 8 km |
| 29613 | 8a | 10 to 15°F | 12 km |
| 29617 | 8a | 10 to 15°F | 13 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 USW00013886, at 34.8461, -82.3461, elevation 319 m (1,048 ft).
- Data quality: Representative (10+ years), 22 years of freeze data.
- Average days per year at or below 32°F: 44.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Greenville (3 km)
- Greer (12 km)
- Fountain Inn 2 SW (22 km)
- W Pelzer (25 km)
- Pickens (34 km)
- Table Rock (37 km)
- Caesars Head (39 km)
- Spartanburg 3 SSE (40 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