Frost dates for Summer Shade, KY
At Summer Shade, the median last spring frost (32°F) is Apr 26 and the median first fall frost is Oct 18, for a typical growing season of 174 days. For a 90% chance that the last frost has passed, wait until May 16. Nearby ZIP codes are in USDA hardiness zones 6b to 7a.
- Apr 26Last spring frost (median)50% chance of 32°F after this date
- May 16Safer planting date10% chance of 32°F after this date
- Oct 18First fall frost (median)50% chance of 32°F by this date
- 174 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 20 | May 6 | May 23 |
| 32°F | Apr 7 | Apr 26 | May 16 |
| 28°F | Mar 26 | Apr 12 | May 5 |
| 24°F | Mar 13 | Mar 31 | Apr 24 |
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 26 | Oct 9 | Oct 21 |
| 32°F | Oct 5 | Oct 18 | Oct 29 |
| 28°F | Oct 14 | Oct 27 | Nov 8 |
| 24°F | Oct 23 | Nov 5 | Nov 21 |
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 | 136 days | 155 days | 174 days |
| 32°F | 152 days | 174 days | 197 days |
| 28°F | 170 days | 197 days | 218 days |
| 24°F | 191 days | 218 days | 244 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 |
|---|---|---|---|
| 42166 | 7a | 0 to 5°F | 2 km |
| 42124 | 7a | 0 to 5°F | 5 km |
| 42130 | 7a | 0 to 5°F | 8 km |
| 42157 | 7a | 0 to 5°F | 15 km |
| 42759 | 6b | -5 to 0°F | 18 km |
| 42167 | 7a | 0 to 5°F | 19 km |
| 42131 | 7a | 0 to 5°F | 19 km |
| 42715 | 7a | 0 to 5°F | 27 km |
| 42151 | 7a | 0 to 5°F | 29 km |
| 42717 | 7a | 0 to 5°F | 31 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 USC00157800, at 36.8861, -85.7067, elevation 263 m (864 ft).
- Data quality: Representative (10+ years), 14 years of freeze data.
- Average days per year at or below 32°F: 101.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Knob Lick 4s (15 km)
- Glasgow (22 km)
- Barren River Lake (37 km)
- Greensburg (45 km)
- Mammoth Cave (48 km)
- Scottsville (49 km)
- Jamestown Wastewater Plant (59 km)
- Bowling Green 21 NNE (62 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.