Frost dates for Louisburg, NC
At Louisburg, the median last spring frost (32°F) is Apr 11 and the median first fall frost is Oct 29, for a typical growing season of 201 days. For a 90% chance that the last frost has passed, wait until Apr 28. Nearby ZIP codes are in USDA hardiness zones 7b to 8a.
- Apr 11Last spring frost (median)50% chance of 32°F after this date
- Apr 28Safer planting date10% chance of 32°F after this date
- Oct 29First fall frost (median)50% chance of 32°F by this date
- 201 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 | Apr 8 | Apr 22 | May 10 |
| 32°F | Mar 25 | Apr 11 | Apr 28 |
| 28°F | Mar 11 | Mar 29 | Apr 12 |
| 24°F | Feb 22 | Mar 16 | Apr 3 |
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 6 | Oct 20 | Nov 1 |
| 32°F | Oct 15 | Oct 29 | Nov 11 |
| 28°F | Oct 24 | Nov 6 | Nov 25 |
| 24°F | Nov 5 | Nov 20 | Dec 12 |
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 | 159 days | 180 days | 200 days |
| 32°F | 180 days | 201 days | 221 days |
| 28°F | 202 days | 223 days | 248 days |
| 24°F | 224 days | 249 days | 280 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 |
|---|---|---|---|
| 27549 | 8a | 10 to 15°F | 5 km |
| 27544 | 7b | 5 to 10°F | 16 km |
| 27525 | 8a | 10 to 15°F | 16 km |
| 27596 | 8a | 10 to 15°F | 16 km |
| 27508 | 8a | 10 to 15°F | 17 km |
| 27816 | 8a | 10 to 15°F | 21 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 USC00315123, at 36.1025, -78.3042, elevation 79 m (260 ft).
- Data quality: Representative (10+ years), 24 years of freeze data.
- Average days per year at or below 32°F: 98.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Henderson 2 NNW (29 km)
- Henderson 4 NNE (30 km)
- Falls Lake (34 km)
- Oxford Ag (35 km)
- Arcola (36 km)
- Rocky Mount Wilson Airport (46 km)
- Raleigh Durham Intl Airport (49 km)
- Raleigh State Univ (50 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