Frost dates for Shallotte Ag, NC
At Shallotte Ag, the median last spring frost (32°F) is Mar 20 and the median first fall frost is Nov 17, for a typical growing season of 243 days. For a 90% chance that the last frost has passed, wait until Apr 4. Nearby ZIP codes are in USDA hardiness zone 8b.
- Mar 20Last spring frost (median)50% chance of 32°F after this date
- Apr 4Safer planting date10% chance of 32°F after this date
- Nov 17First fall frost (median)50% chance of 32°F by this date
- 243 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 17 | Mar 31 | Apr 14 |
| 32°F | Feb 28 | Mar 20 | Apr 4 |
| 28°F | Feb 5 | Mar 7 | Mar 26 |
| 24°F | Jan 14 | Feb 19 | Mar 15 |
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 24 | Nov 6 | Nov 20 |
| 32°F | Nov 3 | Nov 17 | Dec 6 |
| 28°F | Nov 12 | Dec 1 | Jan 1 |
| 24°F | Nov 27 | Dec 24 | Jan 22 |
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 | 201 days | 222 days | 246 days |
| 32°F | 220 days | 243 days | 272 days |
| 28°F | 241 days | 273 days | 307 days |
| 24°F | 268 days | 306 days | 345 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 97% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 28470 | 8b | 15 to 20°F | 4 km |
| 28469 | 8b | 15 to 20°F | 8 km |
| 28462 | 8b | 15 to 20°F | 11 km |
| 28468 | 8b | 15 to 20°F | 12 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 USC00317813, at 33.9283, -78.3894, elevation 6 m (20 ft).
- Data quality: Representative (10+ years), 15 years of freeze data.
- Average days per year at or below 32°F: 37.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Longwood (17 km)
- Southport 5 N (36 km)
- Wilmington 7 SE (53 km)
- Wilmington Intl Airport (59 km)
- Wilmington 7 N (61 km)
- Moores Creek Nb (64 km)
- Whiteville 7 NW (65 km)
- Lumber River State Park (76 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 North Carolina stations · How frost dates are calculated