Frost dates for Chandlers Valley 1se, PA
At Chandlers Valley 1se, the median last spring frost (32°F) is May 22 and the median first fall frost is Sep 30, for a typical growing season of 131 days. For a 90% chance that the last frost has passed, wait until Jun 5. Nearby ZIP codes are in USDA hardiness zones 5b to 6a.
- May 22Last spring frost (median)50% chance of 32°F after this date
- Jun 5Safer planting date10% chance of 32°F after this date
- Sep 30First fall frost (median)50% chance of 32°F by this date
- 131 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 | May 21 | Jun 3 | Jun 20 |
| 32°F | May 6 | May 22 | Jun 5 |
| 28°F | Apr 24 | May 8 | May 25 |
| 24°F | Apr 13 | Apr 27 | May 14 |
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 1 | Sep 18 | Oct 1 |
| 32°F | Sep 16 | Sep 30 | Oct 12 |
| 28°F | Sep 28 | Oct 11 | Oct 29 |
| 24°F | Oct 9 | Oct 26 | Nov 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 | 80 days | 104 days | 126 days |
| 32°F | 109 days | 131 days | 152 days |
| 28°F | 135 days | 156 days | 180 days |
| 24°F | 158 days | 183 days | 204 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 |
|---|---|---|---|
| 16312 | 5b | -15 to -10°F | 1 km |
| 16350 | 5b | -15 to -10°F | 4 km |
| 16371 | 5b | -15 to -10°F | 7 km |
| 16329 | 6a | -10 to -5°F | 9 km |
| 16402 | 5b | -15 to -10°F | 15 km |
| 16340 | 6a | -10 to -5°F | 18 km |
| 16416 | 5b | -15 to -10°F | 19 km |
| 16436 | 5b | -15 to -10°F | 19 km |
| 16405 | 6a | -10 to -5°F | 20 km |
| 14710 | 6a | -10 to -5°F | 20 km |
| 14767 | 5b | -15 to -10°F | 23 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 USC00361362, at 41.9300, -79.2969, elevation 454 m (1,490 ft).
- Data quality: Representative (10+ years), 16 years of freeze data.
- Average days per year at or below 32°F: 173.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Warren (15 km)
- Titusville Wtr Wks (47 km)
- Union City Filtration Plant (47 km)
- Bradford 4sw Rsch 5 (48 km)
- Kane 1nne (50 km)
- Tionesta 2 SE Lake (52 km)
- Bradford Regional Airport (56 km)
- Cooksburg 2 NW (64 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.