Frost dates for Landisville 2 NW, PA
At Landisville 2 NW, the median last spring frost (32°F) is Apr 30 and the median first fall frost is Oct 10, for a typical growing season of 162 days. For a 90% chance that the last frost has passed, wait until May 13. Nearby ZIP codes are in USDA hardiness zone 7a.
- Apr 30Last spring frost (median)50% chance of 32°F after this date
- May 13Safer planting date10% chance of 32°F after this date
- Oct 10First 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 28 | May 9 | May 22 |
| 32°F | Apr 16 | Apr 30 | May 13 |
| 28°F | Apr 5 | Apr 18 | May 2 |
| 24°F | Mar 22 | Apr 5 | Apr 19 |
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 19 | Sep 30 | Oct 12 |
| 32°F | Sep 29 | Oct 10 | Oct 26 |
| 28°F | Oct 8 | Oct 24 | Nov 5 |
| 24°F | Oct 19 | Nov 3 | Nov 19 |
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 | 126 days | 143 days | 160 days |
| 32°F | 144 days | 162 days | 182 days |
| 28°F | 165 days | 186 days | 207 days |
| 24°F | 192 days | 212 days | 233 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 |
|---|---|---|---|
| 17538 | 7a | 0 to 5°F | 4 km |
| 17545 | 7a | 0 to 5°F | 6 km |
| 17552 | 7a | 0 to 5°F | 7 km |
| 17554 | 7a | 0 to 5°F | 9 km |
| 17512 | 7a | 0 to 5°F | 10 km |
| 17570 | 7a | 0 to 5°F | 12 km |
| 17550 | 7a | 0 to 5°F | 14 km |
| 17547 | 7a | 0 to 5°F | 15 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 USC00364778, at 40.1192, -76.4264, elevation 110 m (360 ft).
- Data quality: Standard (24+ years of data), 28 years of freeze data.
- Average days per year at or below 32°F: 122.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Lancaster Airport (11 km)
- Lancaster 2ne Fltr Plant (15 km)
- Safe Harbor Dam (22 km)
- Lebanon 2 W (24 km)
- Middletown Harrisburg Intl Airport (30 km)
- New Holland 2 SE (31 km)
- York 3 SSW Pump Station (36 km)
- Harrisburg Cptl Cy Airport (38 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.