Frost dates for Jackson, KY
At Jackson, the median last spring frost (32°F) is Apr 6 and the median first fall frost is Nov 1, for a typical growing season of 208 days. For a 90% chance that the last frost has passed, wait until Apr 25. Nearby ZIP codes are in USDA hardiness zone 7a.
- Apr 6Last spring frost (median)50% chance of 32°F after this date
- Apr 25Safer planting date10% chance of 32°F after this date
- Nov 1First fall frost (median)50% chance of 32°F by this date
- 208 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 4 | Apr 18 | May 8 |
| 32°F | Mar 21 | Apr 6 | Apr 25 |
| 28°F | Mar 10 | Mar 27 | Apr 11 |
| 24°F | Feb 25 | Mar 16 | Apr 2 |
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 9 | Oct 22 | Nov 4 |
| 32°F | Oct 18 | Nov 1 | Nov 17 |
| 28°F | Nov 1 | Nov 12 | Dec 1 |
| 24°F | Nov 8 | Nov 25 | Dec 16 |
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 | 205 days |
| 32°F | 185 days | 208 days | 230 days |
| 28°F | 209 days | 231 days | 258 days |
| 24°F | 230 days | 254 days | 282 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 |
|---|---|---|---|
| 41310 | 7a | 0 to 5°F | 8 km |
| 41385 | 7a | 0 to 5°F | 8 km |
| 41366 | 7a | 0 to 5°F | 9 km |
| 41301 | 7a | 0 to 5°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 USW00003889, at 37.5908, -83.3131, elevation 416 m (1,364 ft).
- Data quality: Standard (24+ years of data), 30 years of freeze data.
- Average days per year at or below 32°F: 78.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Quicksand (7 km)
- Salyersville Wtr Wks (27 km)
- Buckhorn Lake (31 km)
- Beattyville 4n (36 km)
- W Liberty 3nw (39 km)
- Heidelberg (40 km)
- Prestonsburg 3wsw (43 km)
- Oneida (47 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.