Frost dates for Henderson 8 SSW, KY
At Henderson 8 SSW, the median last spring frost (32°F) is Apr 4 and the median first fall frost is Oct 29, for a typical growing season of 207 days. For a 90% chance that the last frost has passed, wait until Apr 19. Nearby ZIP codes are in USDA hardiness zone 7a.
- Apr 4Last spring frost (median)50% chance of 32°F after this date
- Apr 19Safer planting date10% chance of 32°F after this date
- Oct 29First fall frost (median)50% chance of 32°F by this date
- 207 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 2 | Apr 16 | Apr 30 |
| 32°F | Mar 22 | Apr 4 | Apr 19 |
| 28°F | Mar 9 | Mar 26 | Apr 10 |
| 24°F | Feb 24 | Mar 14 | Mar 31 |
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 | Oct 30 |
| 32°F | Oct 17 | Oct 29 | Nov 10 |
| 28°F | Oct 28 | Nov 8 | Nov 27 |
| 24°F | Nov 4 | Nov 18 | Dec 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 | 164 days | 186 days | 204 days |
| 32°F | 187 days | 207 days | 226 days |
| 28°F | 207 days | 227 days | 252 days |
| 24°F | 227 days | 250 days | 278 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 |
|---|---|---|---|
| 42406 | 7a | 0 to 5°F | 7 km |
| 42452 | 7a | 0 to 5°F | 12 km |
| 42444 | 7a | 0 to 5°F | 13 km |
| 42462 | 7a | 0 to 5°F | 13 km |
| 42455 | 7a | 0 to 5°F | 22 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 USC00153762, at 37.7558, -87.6456, elevation 137 m (449 ft).
- Data quality: Standard (24+ years of data), 28 years of freeze data.
- Average days per year at or below 32°F: 86.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Henderson State Police (8 km)
- Providence (41 km)
- Calhoun Lock 2 (42 km)
- Madisonville (47 km)
- Beaver Dam (73 km)
- Princeton 1 SE (73 km)
- Eddyville 5s (87 km)
- Rochester Ferry (89 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.