Frost dates for Bear Gap, PA
At Bear Gap, the median last spring frost (32°F) is Apr 27 and the median first fall frost is Oct 20, for a typical growing season of 172 days. For a 90% chance that the last frost has passed, wait until May 15. Nearby ZIP codes are in USDA hardiness zone 6b.
- Apr 27Last spring frost (median)50% chance of 32°F after this date
- May 15Safer planting date10% chance of 32°F after this date
- Oct 20First fall frost (median)50% chance of 32°F by this date
- 172 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 22 | May 9 | May 26 |
| 32°F | Apr 12 | Apr 27 | May 15 |
| 28°F | Mar 28 | Apr 13 | May 3 |
| 24°F | Mar 15 | Mar 31 | Apr 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 24 | Oct 6 | Oct 22 |
| 32°F | Oct 4 | Oct 20 | Nov 5 |
| 28°F | Oct 16 | Nov 2 | Nov 18 |
| 24°F | Nov 1 | Nov 15 | Dec 2 |
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 | 148 days | 171 days |
| 32°F | 150 days | 172 days | 195 days |
| 28°F | 178 days | 202 days | 225 days |
| 24°F | 208 days | 228 days | 249 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 |
|---|---|---|---|
| 17832 | 6b | -5 to 0°F | 4 km |
| 17824 | 6b | -5 to 0°F | 5 km |
| 17834 | 6b | -5 to 0°F | 5 km |
| 17851 | 6b | -5 to 0°F | 7 km |
| 17858 | 6b | -5 to 0°F | 7 km |
| 17840 | 6b | -5 to 0°F | 8 km |
| 17860 | 6b | -5 to 0°F | 9 km |
| 17866 | 6b | -5 to 0°F | 10 km |
| 17888 | 6b | -5 to 0°F | 10 km |
| 17945 | 6b | -5 to 0°F | 11 km |
| 17820 | 6b | -5 to 0°F | 12 km |
| 17943 | 6b | -5 to 0°F | 12 km |
| 17964 | 6b | -5 to 0°F | 13 km |
| 17921 | 6b | -5 to 0°F | 14 km |
| 17920 | 6b | -5 to 0°F | 14 km |
| 17836 | 6b | -5 to 0°F | 15 km |
| 17936 | 6b | -5 to 0°F | 15 km |
| 17941 | 6b | -5 to 0°F | 18 km |
| 17938 | 6b | -5 to 0°F | 19 km |
| 17822 | 6b | -5 to 0°F | 19 km |
| 17983 | 6b | -5 to 0°F | 20 km |
| 17981 | 6b | -5 to 0°F | 23 km |
| 17815 | 6b | -5 to 0°F | 23 km |
| 17923 | 6b | -5 to 0°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 USC00360457, at 40.8208, -76.4983, elevation 309 m (1,015 ft).
- Data quality: Representative (10+ years), 12 years of freeze data.
- Average days per year at or below 32°F: 126.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Sunbury (25 km)
- Mahanoy City 2 N (30 km)
- Selinsgrove Penn Valley Airport (31 km)
- Selinsgrove 2 S (31 km)
- Lewisburg (35 km)
- Dehart Dam (45 km)
- Benton 3 NE (48 km)
- Hamburg (52 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.