Frost dates for Barren River Lake, KY
At Barren River Lake, the median last spring frost (32°F) is Apr 12 and the median first fall frost is Oct 29, for a typical growing season of 198 days. For a 90% chance that the last frost has passed, wait until Apr 30. Nearby ZIP codes are in USDA hardiness zone 7a.
- Apr 12Last spring frost (median)50% chance of 32°F after this date
- Apr 30Safer planting date10% chance of 32°F after this date
- Oct 29First fall frost (median)50% chance of 32°F by this date
- 198 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 9 | Apr 24 | May 11 |
| 32°F | Mar 27 | Apr 12 | Apr 30 |
| 28°F | Mar 13 | Mar 31 | Apr 17 |
| 24°F | Feb 27 | Mar 20 | 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 6 | Oct 20 | Nov 1 |
| 32°F | Oct 16 | Oct 29 | Nov 11 |
| 28°F | Oct 26 | Nov 6 | Nov 25 |
| 24°F | Nov 3 | Nov 17 | Dec 5 |
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 | 156 days | 176 days | 196 days |
| 32°F | 174 days | 198 days | 218 days |
| 28°F | 200 days | 221 days | 245 days |
| 24°F | 220 days | 244 days | 271 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 |
|---|---|---|---|
| 42156 | 7a | 0 to 5°F | 8 km |
| 42123 | 7a | 0 to 5°F | 14 km |
| 42159 | 7a | 0 to 5°F | 16 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 USC00150422, at 36.8978, -86.1247, elevation 188 m (615 ft).
- Data quality: Standard (24+ years of data), 27 years of freeze data.
- Average days per year at or below 32°F: 88.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Scottsville (19 km)
- Glasgow (23 km)
- Mammoth Cave (26 km)
- Bowling Green Warren Co Airport (28 km)
- Summer Shade (37 km)
- Bowling Green 21 NNE (40 km)
- Knob Lick 4s (40 km)
- Nolin River Lake (44 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.