Frost dates for Beaver Dam, KY
At Beaver Dam, the median last spring frost (32°F) is Apr 10 and the median first fall frost is Oct 22, for a typical growing season of 192 days. For a 90% chance that the last frost has passed, wait until Apr 29. Nearby ZIP codes are in USDA hardiness zone 7a.
- Apr 10Last spring frost (median)50% chance of 32°F after this date
- Apr 29Safer planting date10% chance of 32°F after this date
- Oct 22First fall frost (median)50% chance of 32°F by this date
- 192 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 23 | May 9 |
| 32°F | Mar 26 | Apr 10 | Apr 29 |
| 28°F | Mar 13 | Mar 31 | Apr 18 |
| 24°F | Feb 28 | Mar 22 | Apr 7 |
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 30 | Oct 12 | Oct 24 |
| 32°F | Oct 8 | Oct 22 | Nov 3 |
| 28°F | Oct 18 | Nov 1 | Nov 18 |
| 24°F | Oct 28 | Nov 13 | Dec 2 |
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 | 150 days | 171 days | 190 days |
| 32°F | 170 days | 192 days | 212 days |
| 28°F | 193 days | 215 days | 236 days |
| 24°F | 213 days | 236 days | 264 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 |
|---|---|---|---|
| 42347 | 7a | 0 to 5°F | 8 km |
| 42354 | 7a | 0 to 5°F | 9 km |
| 42328 | 7a | 0 to 5°F | 12 km |
| 42369 | 7a | 0 to 5°F | 15 km |
| 42370 | 7a | 0 to 5°F | 15 km |
| 42333 | 7a | 0 to 5°F | 16 km |
| 42338 | 7a | 0 to 5°F | 16 km |
| 42361 | 7a | 0 to 5°F | 19 km |
| 42349 | 7a | 0 to 5°F | 21 km |
| 42378 | 7a | 0 to 5°F | 23 km |
| 42374 | 7a | 0 to 5°F | 24 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 USC00150490, at 37.4533, -86.9117, elevation 122 m (400 ft).
- Data quality: Representative (10+ years), 11 years of freeze data.
- Average days per year at or below 32°F: 92.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Rochester Ferry (26 km)
- Calhoun Lock 2 (33 km)
- Rough River Lake (40 km)
- McDaniels (48 km)
- Leitchfield 2 N (55 km)
- Madisonville (55 km)
- Nolin River Lake (62 km)
- Bowling Green 21 NNE (64 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.