Frost dates for Millersburg, OH
At Millersburg, the median last spring frost (32°F) is May 2 and the median first fall frost is Oct 14, for a typical growing season of 164 days. For a 90% chance that the last frost has passed, wait until May 21. Nearby ZIP codes are in USDA hardiness zone 6a.
- May 2Last spring frost (median)50% chance of 32°F after this date
- May 21Safer planting date10% chance of 32°F after this date
- Oct 14First fall frost (median)50% chance of 32°F by this date
- 164 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 27 | May 13 | May 30 |
| 32°F | Apr 18 | May 2 | May 21 |
| 28°F | Apr 5 | Apr 21 | May 10 |
| 24°F | Mar 23 | Apr 6 | Apr 25 |
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 22 | Oct 3 | Oct 16 |
| 32°F | Oct 1 | Oct 14 | Oct 27 |
| 28°F | Oct 11 | Oct 26 | Nov 7 |
| 24°F | Oct 21 | Nov 5 | Nov 22 |
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 | 120 days | 142 days | 164 days |
| 32°F | 141 days | 164 days | 184 days |
| 28°F | 165 days | 187 days | 209 days |
| 24°F | 187 days | 214 days | 235 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 |
|---|---|---|---|
| 44654 | 6a | -10 to -5°F | 4 km |
| 44633 | 6a | -10 to -5°F | 10 km |
| 44610 | 6a | -10 to -5°F | 10 km |
| 44637 | 6a | -10 to -5°F | 11 km |
| 44611 | 6a | -10 to -5°F | 15 km |
| 44660 | 6a | -10 to -5°F | 16 km |
| 44661 | 6a | -10 to -5°F | 18 km |
| 44687 | 6a | -10 to -5°F | 18 km |
| 44690 | 6a | -10 to -5°F | 21 km |
| 44638 | 6a | -10 to -5°F | 22 km |
| 44624 | 6a | -10 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 USC00335297, at 40.5375, -81.9197, elevation 250 m (819 ft).
- Data quality: Standard (24+ years of data), 29 years of freeze data.
- Average days per year at or below 32°F: 140.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Coshocton Ag Rsch Station (22 km)
- Wooster 3 SSE (25 km)
- Wooster Exp. Station (27 km)
- Coshocton Wpc Plant (33 km)
- Danville 2 W (34 km)
- Wooster Wayne Co Airport (37 km)
- New Philadelphia (42 km)
- New Philadelphia Field (43 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.