Frost dates for Ebensburg Sewage Plant, PA
At Ebensburg Sewage Plant, the median last spring frost (32°F) is May 17 and the median first fall frost is Oct 2, for a typical growing season of 136 days. For a 90% chance that the last frost has passed, wait until Jun 1. Nearby ZIP codes are in USDA hardiness zones 6a to 6b.
- May 17Last spring frost (median)50% chance of 32°F after this date
- Jun 1Safer planting date10% chance of 32°F after this date
- Oct 2First fall frost (median)50% chance of 32°F by this date
- 136 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 13 | May 31 | Jun 14 |
| 32°F | Apr 30 | May 17 | Jun 1 |
| 28°F | Apr 18 | May 4 | May 22 |
| 24°F | Apr 5 | Apr 21 | May 12 |
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 5 | Sep 22 | Oct 3 |
| 32°F | Sep 19 | Oct 2 | Oct 14 |
| 28°F | Oct 1 | Oct 13 | Oct 30 |
| 24°F | Oct 11 | Oct 29 | Nov 13 |
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 | 92 days | 112 days | 134 days |
| 32°F | 114 days | 136 days | 159 days |
| 28°F | 139 days | 160 days | 183 days |
| 24°F | 164 days | 188 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 |
|---|---|---|---|
| 15948 | 6a | -10 to -5°F | 4 km |
| 15931 | 6a | -10 to -5°F | 7 km |
| 15962 | 6a | -10 to -5°F | 9 km |
| 15943 | 6a | -10 to -5°F | 9 km |
| 15958 | 6a | -10 to -5°F | 9 km |
| 15927 | 6a | -10 to -5°F | 9 km |
| 15940 | 6a | -10 to -5°F | 10 km |
| 15925 | 6a | -10 to -5°F | 10 km |
| 15960 | 6a | -10 to -5°F | 11 km |
| 15938 | 6a | -10 to -5°F | 13 km |
| 15922 | 6a | -10 to -5°F | 14 km |
| 15946 | 6a | -10 to -5°F | 14 km |
| 15737 | 6a | -10 to -5°F | 15 km |
| 15722 | 6a | -10 to -5°F | 15 km |
| 15762 | 6a | -10 to -5°F | 16 km |
| 15957 | 6a | -10 to -5°F | 17 km |
| 15961 | 6b | -5 to 0°F | 18 km |
| 15775 | 6a | -10 to -5°F | 19 km |
| 15760 | 6a | -10 to -5°F | 21 km |
| 15714 | 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 USC00362470, at 40.4681, -78.7308, elevation 591 m (1,940 ft).
- Data quality: Standard (24+ years of data), 29 years of freeze data.
- Average days per year at or below 32°F: 156.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Johnstown Cambria Co Airport (19 km)
- Altoona 3 W (23 km)
- Prince Gallitzin State Park (25 km)
- Altoona 7 SW (27 km)
- Indiana 3 SE (36 km)
- Altoona Blair Co Airport (40 km)
- Laurel Summit (48 km)
- Laurel Mountain (49 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.