Frost dates for Burlington Fire Station #5, NC
At Burlington Fire Station #5, the median last spring frost (32°F) is Mar 29 and the median first fall frost is Nov 9, for a typical growing season of 226 days. For a 90% chance that the last frost has passed, wait until Apr 15. Nearby ZIP codes are in USDA hardiness zone 8a.
- Mar 29Last spring frost (median)50% chance of 32°F after this date
- Apr 15Safer planting date10% chance of 32°F after this date
- Nov 9First 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 25 | Apr 10 | May 2 |
| 32°F | Mar 8 | Mar 29 | Apr 15 |
| 28°F | Feb 22 | Mar 15 | Apr 3 |
| 24°F | Feb 2 | Feb 28 | Mar 22 |
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 9 | Nov 25 |
| 28°F | Nov 6 | Nov 23 | Dec 14 |
| 24°F | Nov 20 | Dec 11 | Jan 7 |
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 | 179 days | 203 days | 224 days |
| 32°F | 200 days | 226 days | 253 days |
| 28°F | 225 days | 255 days | 284 days |
| 24°F | 255 days | 288 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 |
|---|---|---|---|
| 27202 | 8a | 10 to 15°F | 15 km |
| 27244 | 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 USC00311239, at 36.0600, -79.4481, elevation 201 m (660 ft).
- Data quality: Representative (10+ years), 20 years of freeze data.
- Average days per year at or below 32°F: 72.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Burlington Alamance Airport (3 km)
- Haw River 1e (7 km)
- Cane Creek Rsvr (23 km)
- Greensboro Water Plant (32 km)
- Siler City 2 N (33 km)
- Durham 11 W (33 km)
- Chapel Hill 2 W (37 km)
- Chapel Hill Williams Airport (37 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