Last frost date in Suffern, New York
April 19
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 3.
October 23
Average first frost in fall. 1 year in 10 it comes by October 9.
Source: NOAA U.S. Climate Normals 1991–2020, station Wanaque Raymond Dam (USC00289187), 9.2 miles from Suffern, elevation 245 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
This station is also the nearest one for Airmont, so its frost dates are the same as Suffern's.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Apr 5 | Apr 19 | May 3 |
| First frost in fall | Oct 9 | Oct 23 | Nov 6 |
Frost-free days in an average year: 188
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | Apr 30 | Oct 13 |
| Frost (32°F) | Every year | Apr 19 | Oct 23 |
| Hard freeze (28°F) | Every year | Apr 4 | Nov 4 |
Nights at 32°F or colder in an average year: 121
What to plant now in Suffern
- Spring planting calendar for an average last frost around April 20 Suffern: April 19
- Fall planting calendar for an average first frost around October 20 Suffern: October 23
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 New York
- Ossining 14 mi · last frost Apr 25
- Kiryas Joel 16 mi · last frost Apr 10
- Peekskill 17 mi · last frost Apr 30
- Yonkers 18 mi · last frost Apr 20
- White Plains 21 mi · last frost Apr 12