Frost dates for Port Meadville Airport, PA
At Port Meadville Airport, the median last spring frost (32°F) is Apr 30 and the median first fall frost is Oct 23, for a typical growing season of 175 days. For a 90% chance that the last frost has passed, wait until May 18. Nearby ZIP codes are in USDA hardiness zone 6a.
- Apr 30Last spring frost (median)50% chance of 32°F after this date
- May 18Safer planting date10% chance of 32°F after this date
- Oct 23First fall frost (median)50% chance of 32°F by this date
- 175 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 26 | May 11 | May 26 |
| 32°F | Apr 16 | Apr 30 | May 18 |
| 28°F | Apr 2 | Apr 18 | May 5 |
| 24°F | Mar 23 | Apr 5 | Apr 20 |
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 28 | Oct 9 | Oct 23 |
| 32°F | Oct 6 | Oct 23 | Nov 7 |
| 28°F | Oct 20 | Nov 4 | Nov 20 |
| 24°F | Nov 4 | 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 | 132 days | 151 days | 172 days |
| 32°F | 153 days | 175 days | 196 days |
| 28°F | 179 days | 200 days | 223 days |
| 24°F | 205 days | 224 days | 245 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 |
|---|---|---|---|
| 16335 | 6a | -10 to -5°F | 5 km |
| 16316 | 6a | -10 to -5°F | 7 km |
| 16422 | 6a | -10 to -5°F | 9 km |
| 16111 | 6a | -10 to -5°F | 13 km |
| 16433 | 6a | -10 to -5°F | 14 km |
| 16314 | 6a | -10 to -5°F | 16 km |
| 16440 | 6a | -10 to -5°F | 19 km |
| 16130 | 6a | -10 to -5°F | 20 km |
| 16151 | 6a | -10 to -5°F | 20 km |
| 16327 | 6a | -10 to -5°F | 21 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 USW00004843, at 41.6264, -80.2150, elevation 427 m (1,400 ft).
- Data quality: Representative (10+ years), 23 years of freeze data.
- Average days per year at or below 32°F: 125.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Linesville 1 S (18 km)
- Jamestown 2 NW (25 km)
- Springboro 3 WNW (27 km)
- Franklin (41 km)
- Union City Filtration Plant (42 km)
- Titusville Wtr Wks (43 km)
- Mercer (45 km)
- Erie Intl Airport (51 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.