Frost dates for Ripley Exp. Farm, OH
At Ripley Exp. Farm, the median last spring frost (32°F) is Apr 29 and the median first fall frost is Oct 11, for a typical growing season of 162 days. For a 90% chance that the last frost has passed, wait until May 16. Nearby ZIP codes are in USDA hardiness zone 6b.
- Apr 29Last spring frost (median)50% chance of 32°F after this date
- May 16Safer planting date10% chance of 32°F after this date
- Oct 11First fall frost (median)50% chance of 32°F by this date
- 162 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 25 | May 9 | May 26 |
| 32°F | Apr 17 | Apr 29 | May 16 |
| 28°F | Apr 6 | Apr 20 | May 8 |
| 24°F | Mar 26 | Apr 8 | 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 18 | Oct 1 | Oct 13 |
| 32°F | Sep 28 | Oct 11 | Oct 23 |
| 28°F | Oct 7 | Oct 21 | Nov 3 |
| 24°F | Oct 17 | Nov 1 | Nov 18 |
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 | 125 days | 145 days | 162 days |
| 32°F | 143 days | 162 days | 179 days |
| 28°F | 163 days | 183 days | 202 days |
| 24°F | 185 days | 206 days | 228 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 |
|---|---|---|---|
| 45167 | 6b | -5 to 0°F | 1 km |
| 45168 | 6b | -5 to 0°F | 7 km |
| 45115 | 6b | -5 to 0°F | 8 km |
| 45121 | 6b | -5 to 0°F | 13 km |
| 45105 | 6b | -5 to 0°F | 17 km |
| 45618 | 6b | -5 to 0°F | 19 km |
| 45697 | 6b | -5 to 0°F | 19 km |
| 45693 | 6b | -5 to 0°F | 23 km |
| 45171 | 6b | -5 to 0°F | 25 km |
| 45154 | 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 USC00337120, at 38.7872, -83.7972, elevation 268 m (880 ft).
- Data quality: Representative (10+ years), 14 years of freeze data.
- Average days per year at or below 32°F: 128.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Chilo Meldahl Locks & Dam (33 km)
- Hillsboro (52 km)
- Milford (61 km)
- Cincinnati Lunken Airport (64 km)
- Lucasville (70 km)
- Cincinnati (70 km)
- WFO Wilmington (71 km)
- Wilmington 3 N (78 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.