Frost dates for Lookout Mtn-Point Park, TN
At Lookout Mtn-Point Park, the median last spring frost (32°F) is Mar 31 and the median first fall frost is Nov 6, for a typical growing season of 219 days. For a 90% chance that the last frost has passed, wait until Apr 18. Nearby ZIP codes are in USDA hardiness zones 7b to 8a.
- Mar 31Last spring frost (median)50% chance of 32°F after this date
- Apr 18Safer planting date10% chance of 32°F after this date
- Nov 6First fall frost (median)50% chance of 32°F by this date
- 219 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 27 | Apr 12 | Apr 27 |
| 32°F | Mar 15 | Mar 31 | Apr 18 |
| 28°F | Mar 1 | Mar 21 | Apr 6 |
| 24°F | Feb 15 | Mar 9 | Mar 27 |
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 16 | Oct 29 | Nov 11 |
| 32°F | Oct 24 | Nov 6 | Nov 26 |
| 28°F | Nov 2 | Nov 17 | Dec 7 |
| 24°F | Nov 10 | Dec 1 | 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 | 179 days | 198 days | 220 days |
| 32°F | 196 days | 219 days | 244 days |
| 28°F | 217 days | 243 days | 269 days |
| 24°F | 239 days | 266 days | 295 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 |
|---|---|---|---|
| 37409 | 8a | 10 to 15°F | 1 km |
| 37350 | 7b | 5 to 10°F | 2 km |
| 37410 | 8a | 10 to 15°F | 3 km |
| 37408 | 8a | 10 to 15°F | 4 km |
| 37402 | 8a | 10 to 15°F | 5 km |
| 37407 | 8a | 10 to 15°F | 5 km |
| 37403 | 8a | 10 to 15°F | 6 km |
| 37419 | 7b | 5 to 10°F | 8 km |
| 30750 | 7b | 5 to 10°F | 9 km |
| 30757 | 8a | 10 to 15°F | 12 km |
| 37405 | 7b | 5 to 10°F | 14 km |
| 37396 | 7b | 5 to 10°F | 15 km |
| 37340 | 7b | 5 to 10°F | 16 km |
| 30752 | 7b | 5 to 10°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 USC00405431, at 35.0097, -85.3444, elevation 643 m (2,110 ft).
- Data quality: Representative (10+ years), 21 years of freeze data.
- Average days per year at or below 32°F: 68.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Chattanooga Lovell Airport (13 km)
- Soddy Daisy-Mowbray Mountain (32 km)
- Whitwell-Sequatchie Valley (33 km)
- Monteagle (51 km)
- Coalmont (51 km)
- Cleveland Fltr Plant (55 km)
- Sewanee (56 km)
- Dayton 2se (60 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.