Frost dates for Dunn 4 NW, NC
At Dunn 4 NW, the median last spring frost (32°F) is Mar 28 and the median first fall frost is Nov 7, for a typical growing season of 226 days. For a 90% chance that the last frost has passed, wait until Apr 11. Nearby ZIP codes are in USDA hardiness zone 8a.
- Mar 28Last spring frost (median)50% chance of 32°F after this date
- Apr 11Safer planting date10% chance of 32°F after this date
- Nov 7First fall frost (median)50% chance of 32°F by this date
- 226 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 22 | Apr 6 | Apr 21 |
| 32°F | Mar 9 | Mar 28 | Apr 11 |
| 28°F | Feb 21 | Mar 14 | Mar 31 |
| 24°F | Jan 31 | Feb 28 | Mar 20 |
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 17 | Oct 30 | Nov 10 |
| 32°F | Oct 26 | Nov 7 | Nov 23 |
| 28°F | Nov 4 | Nov 19 | Dec 10 |
| 24°F | Nov 14 | Dec 5 | Jan 6 |
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 | 185 days | 205 days | 225 days |
| 32°F | 205 days | 226 days | 249 days |
| 28°F | 227 days | 251 days | 279 days |
| 24°F | 253 days | 284 days | 319 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 100% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 28339 | 8a | 10 to 15°F | 4 km |
| 27521 | 8a | 10 to 15°F | 10 km |
| 28334 | 8a | 10 to 15°F | 12 km |
| 28356 | 8a | 10 to 15°F | 13 km |
| 28331 | 8a | 10 to 15°F | 15 km |
| 28342 | 8a | 10 to 15°F | 16 km |
| 27504 | 8a | 10 to 15°F | 18 km |
| 28344 | 8a | 10 to 15°F | 18 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 USC00312500, at 35.3244, -78.6878, elevation 61 m (200 ft).
- Data quality: Standard (24+ years of data), 30 years of freeze data.
- Average days per year at or below 32°F: 67.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Lillington (15 km)
- Fayetteville (pwc) (33 km)
- Smithfield (38 km)
- Garner (39 km)
- Sanford 8 NE (40 km)
- Clayton Water Plant (41 km)
- Fayetteville Regional Airport (41 km)
- Clayton 3e (43 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