Frost dates for New Philadelphia, OH
At New Philadelphia, the median last spring frost (32°F) is Apr 30 and the median first fall frost is Oct 15, for a typical growing season of 167 days. For a 90% chance that the last frost has passed, wait until May 17. Nearby ZIP codes are in USDA hardiness zone 6b.
- Apr 30Last spring frost (median)50% chance of 32°F after this date
- May 17Safer planting date10% chance of 32°F after this date
- Oct 15First fall frost (median)50% chance of 32°F by this date
- 167 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 10 | May 26 |
| 32°F | Apr 18 | Apr 30 | May 17 |
| 28°F | Apr 7 | Apr 21 | May 6 |
| 24°F | Mar 26 | Apr 9 | Apr 23 |
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 24 | Oct 5 | Oct 17 |
| 32°F | Oct 2 | Oct 15 | Oct 27 |
| 28°F | Oct 11 | Oct 25 | Nov 8 |
| 24°F | Oct 23 | Nov 6 | 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 | 128 days | 148 days | 167 days |
| 32°F | 148 days | 167 days | 186 days |
| 28°F | 167 days | 187 days | 206 days |
| 24°F | 191 days | 211 days | 232 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 |
|---|---|---|---|
| 44622 | 6b | -5 to 0°F | 8 km |
| 44678 | 6b | -5 to 0°F | 10 km |
| 44656 | 6b | -5 to 0°F | 13 km |
| 44697 | 6b | -5 to 0°F | 14 km |
| 44680 | 6b | -5 to 0°F | 16 km |
| 44612 | 6b | -5 to 0°F | 17 km |
| 44671 | 6b | -5 to 0°F | 18 km |
| 44643 | 6b | -5 to 0°F | 20 km |
| 44620 | 6b | -5 to 0°F | 20 km |
| 44608 | 6b | -5 to 0°F | 23 km |
| 44626 | 6b | -5 to 0°F | 23 km |
| 44688 | 6b | -5 to 0°F | 26 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 USC00335894, at 40.4878, -81.4317, elevation 282 m (925 ft).
- Data quality: Representative (10+ years), 14 years of freeze data.
- Average days per year at or below 32°F: 134.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- New Philadelphia Field (2 km)
- Dennison Wtr Wks (12 km)
- Coshocton Ag Rsch Station (33 km)
- Millersburg (42 km)
- Cadiz (44 km)
- Coshocton Wpc Plant (46 km)
- Akron Canton Regional Airport (48 km)
- Wooster 3 SSE (51 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.