Frost dates for Indiana 3 SE, PA
At Indiana 3 SE, the median last spring frost (32°F) is May 8 and the median first fall frost is Oct 13, for a typical growing season of 157 days. For a 90% chance that the last frost has passed, wait until May 24. Nearby ZIP codes are in USDA hardiness zones 6a to 6b.
- May 8Last spring frost (median)50% chance of 32°F after this date
- May 24Safer planting date10% chance of 32°F after this date
- Oct 13First fall frost (median)50% chance of 32°F by this date
- 157 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 4 | May 20 | Jun 2 |
| 32°F | Apr 23 | May 8 | May 24 |
| 28°F | Apr 13 | Apr 27 | May 14 |
| 24°F | Mar 30 | Apr 15 | Apr 30 |
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 | Oct 3 | Oct 15 |
| 32°F | Oct 1 | Oct 13 | Oct 27 |
| 28°F | Oct 9 | Oct 25 | Nov 7 |
| 24°F | Oct 21 | Nov 5 | 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 | 117 days | 135 days | 155 days |
| 32°F | 136 days | 157 days | 178 days |
| 28°F | 160 days | 180 days | 201 days |
| 24°F | 184 days | 205 days | 225 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 |
|---|---|---|---|
| 15705 | 6b | -5 to 0°F | 4 km |
| 15701 | 6b | -5 to 0°F | 4 km |
| 15754 | 6b | -5 to 0°F | 5 km |
| 15720 | 6b | -5 to 0°F | 8 km |
| 15748 | 6b | -5 to 0°F | 9 km |
| 15765 | 6b | -5 to 0°F | 10 km |
| 15731 | 6b | -5 to 0°F | 12 km |
| 15723 | 6b | -5 to 0°F | 12 km |
| 15713 | 6b | -5 to 0°F | 12 km |
| 15750 | 6b | -5 to 0°F | 14 km |
| 15752 | 6b | -5 to 0°F | 15 km |
| 15716 | 6b | -5 to 0°F | 15 km |
| 15728 | 6a | -10 to -5°F | 16 km |
| 15920 | 6b | -5 to 0°F | 16 km |
| 15756 | 6b | -5 to 0°F | 16 km |
| 15929 | 6b | -5 to 0°F | 16 km |
| 15734 | 6a | -10 to -5°F | 16 km |
| 15732 | 6b | -5 to 0°F | 17 km |
| 15777 | 6a | -10 to -5°F | 17 km |
| 15745 | 6a | -10 to -5°F | 18 km |
| 15747 | 6a | -10 to -5°F | 19 km |
| 15761 | 6a | -10 to -5°F | 20 km |
| 15759 | 6a | -10 to -5°F | 21 km |
| 15729 | 6a | -10 to -5°F | 21 km |
| 15949 | 6b | -5 to 0°F | 21 km |
| 15710 | 6a | -10 to -5°F | 21 km |
| 15746 | 6a | -10 to -5°F | 27 km |
| 15741 | 6a | -10 to -5°F | 30 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 USC00364214, at 40.5972, -79.1186, elevation 336 m (1,102 ft).
- Data quality: Standard (24+ years of data), 27 years of freeze data.
- Average days per year at or below 32°F: 131.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Loyalhanna Lake (32 km)
- Ford City 4 S Dam (36 km)
- Ebensburg Sewage Plant (36 km)
- Salina 3 W (37 km)
- Putneyville 2 SE Dam (39 km)
- Johnstown Cambria Co Airport (39 km)
- Laurel Mountain (45 km)
- Schenley Lock 5 (47 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.