Frost dates for Cedar Island, NC
At Cedar Island, the median last spring frost (32°F) is Mar 11 and the median first fall frost is Nov 30, for a typical growing season of 261 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 11Last spring frost (median)50% chance of 32°F after this date
- Mar 30Safer planting date10% chance of 32°F after this date
- Nov 30First fall frost (median)50% chance of 32°F by this date
- 261 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 5 | Mar 24 | Apr 9 |
| 32°F | Feb 19 | Mar 11 | Mar 30 |
| 28°F | Jan 29 | Feb 27 | Mar 19 |
| 24°F | Jan 8 | Feb 5 | 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 | Nov 1 | Nov 17 | Dec 2 |
| 32°F | Nov 11 | Nov 30 | Dec 20 |
| 28°F | Nov 24 | Dec 17 | Jan 14 |
| 24°F | Dec 10 | Jan 5 | Feb 3 |
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 | 215 days | 237 days | 261 days |
| 32°F | 237 days | 261 days | 290 days |
| 28°F | 264 days | 294 days | 328 days |
| 24°F | 298 days | 328 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 89% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 28511 | 8b | 15 to 20°F | 10 km |
| 28577 | 8b | 15 to 20°F | 13 km |
| 28520 | 8b | 15 to 20°F | 15 km |
| 28581 | 8b | 15 to 20°F | 20 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 USC00311606, at 34.9833, -76.3000, elevation 2 m (8 ft).
- Data quality: Representative (10+ years), 25 years of freeze data.
- Average days per year at or below 32°F: 34.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Ocracoke (32 km)
- Beaufort Michael J Smith Field (43 km)
- Swanquarter Ferry (46 km)
- Morehead City 2 WNW (48 km)
- Bayboro 3 SW (50 km)
- Atlantic Beach Water Plant (51 km)
- Cherry Point MCAS (54 km)
- Newport/morehead City WFO (57 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