Frost dates for Greensboro Water Plant, NC
At Greensboro Water Plant, the median last spring frost (32°F) is Apr 1 and the median first fall frost is Nov 4, for a typical growing season of 217 days. For a 90% chance that the last frost has passed, wait until Apr 14. Nearby ZIP codes are in USDA hardiness zone 8a.
- Apr 1Last spring frost (median)50% chance of 32°F after this date
- Apr 14Safer planting date10% chance of 32°F after this date
- Nov 4First fall frost (median)50% chance of 32°F by this date
- 217 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 30 | Apr 12 | Apr 27 |
| 32°F | Mar 18 | Apr 1 | Apr 14 |
| 28°F | Mar 3 | Mar 22 | Apr 5 |
| 24°F | Feb 17 | Mar 8 | Mar 25 |
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 14 | Oct 27 | Nov 8 |
| 32°F | Oct 23 | Nov 4 | Nov 19 |
| 28°F | Nov 1 | Nov 15 | Dec 2 |
| 24°F | Nov 12 | Nov 30 | Dec 24 |
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 | 178 days | 197 days | 215 days |
| 32°F | 197 days | 217 days | 239 days |
| 28°F | 219 days | 242 days | 266 days |
| 24°F | 244 days | 267 days | 296 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 |
|---|---|---|---|
| 27412 | 8a | 10 to 15°F | 2 km |
| 27408 | 8a | 10 to 15°F | 2 km |
| 27403 | 8a | 10 to 15°F | 3 km |
| 27401 | 8a | 10 to 15°F | 4 km |
| 27405 | 8a | 10 to 15°F | 7 km |
| 27407 | 8a | 10 to 15°F | 10 km |
| 27406 | 8a | 10 to 15°F | 10 km |
| 27455 | 8a | 10 to 15°F | 12 km |
| 27301 | 8a | 10 to 15°F | 13 km |
| 27214 | 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 USC00313625, at 36.0831, -79.8045, elevation 233 m (765 ft).
- Data quality: Representative (10+ years), 11 years of freeze data.
- Average days per year at or below 32°F: 63.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Piedmont Triad Intl Airport (13 km)
- High Point (20 km)
- Randleman (29 km)
- Burlington Alamance Airport (30 km)
- Burlington Fire Station #5 (32 km)
- Reidsville 2 NW (34 km)
- Winston Salem Rynlds Airport (38 km)
- Haw River 1e (39 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