Frost dates for New Holland 2 SE, PA
At New Holland 2 SE, the median last spring frost (32°F) is Apr 14 and the median first fall frost is Nov 1, for a typical growing season of 198 days. For a 90% chance that the last frost has passed, wait until Apr 30. Nearby ZIP codes are in USDA hardiness zone 7a.
- Apr 14Last spring frost (median)50% chance of 32°F after this date
- Apr 30Safer planting date10% chance of 32°F after this date
- Nov 1First fall frost (median)50% chance of 32°F by this date
- 198 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 12 | Apr 25 | May 12 |
| 32°F | Apr 1 | Apr 14 | Apr 30 |
| 28°F | Mar 20 | Apr 3 | Apr 17 |
| 24°F | Mar 7 | Mar 25 | Apr 4 |
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 6 | Oct 20 | Nov 2 |
| 32°F | Oct 17 | Nov 1 | Nov 13 |
| 28°F | Oct 31 | Nov 11 | Nov 28 |
| 24°F | Nov 8 | Nov 22 | Dec 11 |
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 | 156 days | 177 days | 195 days |
| 32°F | 178 days | 198 days | 217 days |
| 28°F | 204 days | 222 days | 244 days |
| 24°F | 223 days | 245 days | 270 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 |
|---|---|---|---|
| 17557 | 7a | 0 to 5°F | 3 km |
| 17529 | 7a | 0 to 5°F | 4 km |
| 17506 | 7a | 0 to 5°F | 5 km |
| 17534 | 7a | 0 to 5°F | 6 km |
| 17535 | 7a | 0 to 5°F | 8 km |
| 17519 | 7a | 0 to 5°F | 8 km |
| 17581 | 7a | 0 to 5°F | 9 km |
| 17527 | 7a | 0 to 5°F | 9 km |
| 17572 | 7a | 0 to 5°F | 10 km |
| 17562 | 7a | 0 to 5°F | 12 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 USC00366238, at 40.0753, -76.0714, elevation 184 m (605 ft).
- Data quality: Standard (24+ years of data), 27 years of freeze data.
- Average days per year at or below 32°F: 97.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Lancaster 2ne Fltr Plant (17 km)
- Hopewell Morgantown (18 km)
- Lancaster Airport (20 km)
- Coatesville 2 W (21 km)
- Glenmoore (27 km)
- Landisville 2 NW (31 km)
- Octoraro Lake (31 km)
- Safe Harbor Dam (32 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.