Last frost date in Lebanon, Pennsylvania
April 20
Average last frost in spring. In an early year (1 in 10) it's over by April 5; in a late year (1 in 10) it comes after May 7.
October 25
Average first frost in fall. 1 year in 10 it comes by October 10.
Source: NOAA U.S. Climate Normals 1991–2020, station Lebanon 2 W (USC00364896), 2.4 miles from Lebanon, elevation 450 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Apr 5 | Apr 20 | May 7 |
| First frost in fall | Oct 10 | Oct 25 | Nov 6 |
Frost-free days in an average year: 185
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 2 | Oct 14 |
| Frost (32°F) | Every year | Apr 20 | Oct 25 |
| Hard freeze (28°F) | Every year | Apr 4 | Nov 5 |
Nights at 32°F or colder in an average year: 120
What to plant now in Lebanon
- Spring planting calendar for an average last frost around April 20 Lebanon: April 20
- Fall planting calendar for an average first frost around October 20 Lebanon: October 25
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), “Suburban and Farm Vegetable Gardens,” tables 4 and 5. How we match the table.
Nearby in Pennsylvania
- Elizabethtown 16 mi · last frost Apr 9
- Ephrata 17 mi · last frost Apr 18
- Columbia 22 mi · last frost Apr 30
- Lancaster 22 mi · last frost Apr 19
- Harrisburg 25 mi · last frost Apr 15
Updated