Frost dates for Canton, PA
At Canton, the median last spring frost (32°F) is May 16 and the median first fall frost is Oct 2, for a typical growing season of 139 days. For a 90% chance that the last frost has passed, wait until May 29. Nearby ZIP codes are in USDA hardiness zone 6a.
- May 16Last spring frost (median)50% chance of 32°F after this date
- May 29Safer planting date10% chance of 32°F after this date
- Oct 2First fall frost (median)50% chance of 32°F by this date
- 139 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 12 | May 29 | Jun 11 |
| 32°F | Apr 27 | May 16 | May 29 |
| 28°F | Apr 19 | May 1 | May 19 |
| 24°F | Apr 5 | Apr 20 | May 5 |
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 7 | Sep 22 | Oct 4 |
| 32°F | Sep 18 | Oct 2 | Oct 16 |
| 28°F | Sep 29 | Oct 13 | Oct 31 |
| 24°F | Oct 8 | Oct 28 | Nov 10 |
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 | 94 days | 115 days | 136 days |
| 32°F | 118 days | 139 days | 159 days |
| 28°F | 141 days | 163 days | 184 days |
| 24°F | 165 days | 189 days | 210 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 |
|---|---|---|---|
| 17724 | 6a | -10 to -5°F | 4 km |
| 16910 | 6a | -10 to -5°F | 6 km |
| 16947 | 6a | -10 to -5°F | 12 km |
| 17768 | 6a | -10 to -5°F | 13 km |
| 17765 | 6a | -10 to -5°F | 14 km |
| 16926 | 6a | -10 to -5°F | 14 km |
| 16939 | 6a | -10 to -5°F | 14 km |
| 16932 | 6a | -10 to -5°F | 16 km |
| 17763 | 6a | -10 to -5°F | 17 km |
| 16912 | 6a | -10 to -5°F | 18 km |
| 16917 | 6a | -10 to -5°F | 19 km |
| 16911 | 6a | -10 to -5°F | 21 km |
| 16914 | 6a | -10 to -5°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 USC00361212, at 41.6517, -76.8464, elevation 348 m (1,140 ft).
- Data quality: Standard (24+ years of data), 29 years of freeze data.
- Average days per year at or below 32°F: 160.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Towanda 1 S (35 km)
- Tioga Hammond Dam (37 km)
- Laporte (39 km)
- Dushore (40 km)
- Wellsboro 4 SW (45 km)
- Cowanesque Dam (46 km)
- Williamsport (46 km)
- Williamsport 2 (46 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.