Frost dates for Stearns 2S, KY
At Stearns 2S, the median last spring frost (32°F) is Apr 24 and the median first fall frost is Oct 18, for a typical growing season of 177 days. For a 90% chance that the last frost has passed, wait until May 11. Nearby ZIP codes are in USDA hardiness zone 7a.
- Apr 24Last spring frost (median)50% chance of 32°F after this date
- May 11Safer planting date10% chance of 32°F after this date
- Oct 18First fall frost (median)50% chance of 32°F by this date
- 177 daysGrowing season (median)between 32°F freezes
USDA hardiness zone 7a (0 to 5°F) · see all zone 7a frost dates
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 20 | May 4 | May 21 |
| 32°F | Apr 8 | Apr 24 | May 11 |
| 28°F | Mar 24 | Apr 10 | Apr 30 |
| 24°F | Mar 7 | Mar 29 | Apr 12 |
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 | Sep 27 | Oct 9 | Oct 23 |
| 32°F | Oct 4 | Oct 18 | Nov 2 |
| 28°F | Oct 13 | Oct 29 | Nov 11 |
| 24°F | Oct 23 | Nov 7 | Nov 25 |
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 | 138 days | 158 days | 178 days |
| 32°F | 154 days | 177 days | 198 days |
| 28°F | 176 days | 200 days | 221 days |
| 24°F | 201 days | 224 days | 251 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 |
|---|---|---|---|
| 42638 | 7a | 0 to 5°F | 1 km |
| 42635 | 7a | 0 to 5°F | 7 km |
| 42631 | 7a | 0 to 5°F | 7 km |
| 42649 | 7a | 0 to 5°F | 8 km |
| 42653 | 7a | 0 to 5°F | 12 km |
| 42647 | 7a | 0 to 5°F | 13 km |
| 42634 | 7a | 0 to 5°F | 25 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 USC00157677, at 36.6736, -84.4792, elevation 372 m (1,220 ft).
- Data quality: Representative (10+ years), 17 years of freeze data.
- Average days per year at or below 32°F: 119.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Williamsburg (30 km)
- Monticello 3 NE (38 km)
- Somerset 2 N (51 km)
- Barbourville (58 km)
- London Corbin Airport (58 km)
- Jamestown Wastewater Plant (64 km)
- Mount Vernon (77 km)
- Manchester 4 W (79 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.