Frost dates for Maysville Wastewater Plant, KY
At Maysville Wastewater Plant, the median last spring frost (32°F) is Apr 18 and the median first fall frost is Oct 30, for a typical growing season of 195 days. For a 90% chance that the last frost has passed, wait until May 4. Nearby ZIP codes are in USDA hardiness zone 6b.
- Apr 18Last spring frost (median)50% chance of 32°F after this date
- May 4Safer planting date10% chance of 32°F after this date
- Oct 30First fall frost (median)50% chance of 32°F by this date
- 195 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 15 | Apr 29 | May 15 |
| 32°F | Apr 3 | Apr 18 | May 4 |
| 28°F | Mar 21 | Apr 5 | Apr 22 |
| 24°F | Mar 6 | Mar 26 | Apr 9 |
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 7 | Oct 19 | Oct 31 |
| 32°F | Oct 17 | Oct 30 | Nov 11 |
| 28°F | Oct 29 | Nov 8 | Nov 21 |
| 24°F | Nov 4 | Nov 17 | Dec 3 |
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 | 152 days | 173 days | 191 days |
| 32°F | 175 days | 195 days | 212 days |
| 28°F | 197 days | 215 days | 235 days |
| 24°F | 216 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 |
|---|---|---|---|
| 45101 | 6b | -5 to 0°F | 5 km |
| 41056 | 6b | -5 to 0°F | 9 km |
| 41034 | 6b | -5 to 0°F | 10 km |
| 45144 | 6b | -5 to 0°F | 15 km |
| 45650 | 6b | -5 to 0°F | 32 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 USC00155243, at 38.6869, -83.7872, elevation 157 m (515 ft).
- Data quality: Representative (10+ years), 25 years of freeze data.
- Average days per year at or below 32°F: 107.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Augusta 2 (22 km)
- Flemingsburg 2 N (27 km)
- Cynthiana (57 km)
- Cave Run Lake (67 km)
- Williamstown (67 km)
- Warnock 2 (70 km)
- Olive Hill 5ne (71 km)
- Mount Sterling (71 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.