Frost dates for Townsend 5s, TN
At Townsend 5s, the median last spring frost (32°F) is Apr 20 and the median first fall frost is Oct 22, for a typical growing season of 185 days. For a 90% chance that the last frost has passed, wait until May 10. Nearby ZIP codes are in USDA hardiness zones 7a to 7b.
- Apr 20Last spring frost (median)50% chance of 32°F after this date
- May 10Safer planting date10% chance of 32°F after this date
- Oct 22First fall frost (median)50% chance of 32°F by this date
- 185 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 16 | May 3 | May 18 |
| 32°F | Apr 1 | Apr 20 | May 10 |
| 28°F | Mar 18 | Apr 4 | Apr 23 |
| 24°F | Mar 3 | Mar 22 | Apr 7 |
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 2 | Oct 13 | Oct 27 |
| 32°F | Oct 9 | Oct 22 | Nov 4 |
| 28°F | Oct 18 | Nov 1 | Nov 14 |
| 24°F | Oct 31 | Nov 12 | Dec 1 |
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 | 143 days | 163 days | 183 days |
| 32°F | 163 days | 185 days | 208 days |
| 28°F | 186 days | 210 days | 233 days |
| 24°F | 212 days | 236 days | 263 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 |
|---|---|---|---|
| 37882 | 7a | 0 to 5°F | 4 km |
| 37886 | 7b | 5 to 10°F | 16 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 USC00409065, at 35.6031, -83.7767, elevation 577 m (1,893 ft).
- Data quality: Representative (10+ years), 19 years of freeze data.
- Average days per year at or below 32°F: 101.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Gatlinburg 2 SW (24 km)
- Knoxville McGhee Tyson Airport (30 km)
- Mount Leconte (31 km)
- Newfound Gap (31 km)
- Knoxville Exp. Station (37 km)
- Sevierville (40 km)
- Lenoir City (48 km)
- Tellico Plains (54 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.