Frost dates for Rochester Ferry, KY
At Rochester Ferry, the median last spring frost (32°F) is Apr 15 and the median first fall frost is Oct 20, for a typical growing season of 187 days. For a 90% chance that the last frost has passed, wait until May 3. Nearby ZIP codes are in USDA hardiness zone 7a.
- Apr 15Last spring frost (median)50% chance of 32°F after this date
- May 3Safer planting date10% chance of 32°F after this date
- Oct 20First fall frost (median)50% chance of 32°F by this date
- 187 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 12 | Apr 27 | May 12 |
| 32°F | Mar 31 | Apr 15 | May 3 |
| 28°F | Mar 17 | Apr 2 | Apr 19 |
| 24°F | Mar 2 | Mar 21 | Apr 6 |
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 1 | Oct 12 | Oct 21 |
| 32°F | Oct 9 | Oct 20 | Oct 30 |
| 28°F | Oct 18 | Oct 30 | Nov 13 |
| 24°F | Oct 31 | Nov 11 | 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 | 149 days | 167 days | 185 days |
| 32°F | 168 days | 187 days | 207 days |
| 28°F | 190 days | 211 days | 232 days |
| 24°F | 214 days | 236 days | 261 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 |
|---|---|---|---|
| 42273 | 7a | 0 to 5°F | 3 km |
| 42337 | 7a | 0 to 5°F | 5 km |
| 42326 | 7a | 0 to 5°F | 11 km |
| 42339 | 7a | 0 to 5°F | 12 km |
| 42320 | 7a | 0 to 5°F | 13 km |
| 42323 | 7a | 0 to 5°F | 13 km |
| 42324 | 7a | 0 to 5°F | 13 km |
| 42321 | 7a | 0 to 5°F | 14 km |
| 42332 | 7a | 0 to 5°F | 18 km |
| 42261 | 7a | 0 to 5°F | 22 km |
| 42330 | 7a | 0 to 5°F | 23 km |
| 42367 | 7a | 0 to 5°F | 24 km |
| 42345 | 7a | 0 to 5°F | 28 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 USC00156882, at 37.2167, -86.8936, elevation 119 m (390 ft).
- Data quality: Representative (10+ years), 15 years of freeze data.
- Average days per year at or below 32°F: 97.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Beaver Dam (26 km)
- Russellville (40 km)
- Calhoun Lock 2 (48 km)
- Bowling Green Warren Co Airport (50 km)
- Elkton (51 km)
- Rough River Lake (56 km)
- Nolin River Lake (57 km)
- Madisonville (58 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.