Frost dates for 12592Wassaic, NY
The average last spring frost in Wassaic is May 4 and the average first fall frost is October 7, giving a typical growing season of about 155 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 4
- Average first fall frost
- Oct 7
- Growing season
- 155 days
Safer after May 21 (1-in-10 risk)
Possible by Sep 28 (1-in-10 risk)
Last frost typically in 182 days
Frost risk by date
NOAA reports frost dates as probabilities. The middle date is the average (a 50% chance). For spring, the 10% date is a safer planting date: frost after it happens in about 1 year in 10. Light frost (36°F) can damage tender plants; a hard freeze (28°F) kills most annuals.
| Temperature | Last spring: 90% / 50% / 10% chance | First fall: 10% / 50% / 90% chance | Growing season (50%) | Years with at least one |
|---|---|---|---|---|
| Light frost (36°F) | May 1 · May 19 · Jun 2 | Sep 16 · Sep 29 · Oct 11 | 132 days | 100% |
| Frost / freeze (32°F) | Apr 21 · May 4 · May 21 | Sep 28 · Oct 7 · Oct 24 | 155 days | 100% |
| Hard freeze (28°F) | Apr 6 · Apr 22 · May 9 | Oct 5 · Oct 19 · Nov 4 | 179 days | 100% |
Planting calendar for Wassaic
Planting windows from the University of Maryland Extension calendar, shifted to your average frost dates. Use them as a starting point and adjust for seed packet instructions and local conditions.
| Crop | Task | Window |
|---|---|---|
| Tomatoes | Start seeds indoors | Apr 3 – Jun 9 |
| Tomatoes | Transplant outdoors | May 20 – Jun 17 |
| Peppers | Start seeds indoors | Apr 3 – May 4 |
| Peppers | Transplant outdoors | Jun 3 – Jul 4 |
| Eggplant | Start seeds indoors | Apr 20 – May 19 |
| Eggplant | Transplant outdoors | Jun 3 – Jul 4 |
| Cucumbers | Sow outdoors | Jun 3 – Jun 27 |
| Summer squash | Sow outdoors | May 20 – Jul 4 |
| Winter squash & pumpkins | Sow outdoors | Jun 3 – Jul 4 |
| Snap beans | Sow outdoors | May 20 – Jul 20 |
| Sweet corn | Sow outdoors | May 20 – Jun 17 |
| Watermelon & cantaloupe | Sow outdoors | Jun 3 – Jul 4 |
| Okra | Sow outdoors | May 27 – Jun 19 |
| Peas | Sow outdoors (spring) | Apr 3 – May 19 |
| Potatoes | Plant outdoors (spring) | Apr 3 – Jun 3 |
| Onions | Start seeds indoors (spring) | Feb 20 – Mar 19 |
| Onions | Transplant outdoors (spring) | Apr 20 – May 19 |
| Broccoli | Start seeds indoors (spring) | Mar 16 – Apr 19 |
| Broccoli | Transplant outdoors (spring) | Apr 20 – May 19 |
| Broccoli | Start seeds indoors (fall) | Jun 7 – Jun 17 |
| Broccoli | Transplant outdoors (fall) | Jul 7 – Jul 18 |
| Cabbage | Start seeds indoors (spring) | Mar 6 – Apr 3 |
| Cabbage | Transplant outdoors (spring) | Apr 3 – May 4 |
| Cabbage | Start seeds indoors (fall) | May 28 – Jun 27 |
| Cabbage | Transplant outdoors (fall) | Jun 27 – Jul 28 |
| Leaf lettuce | Sow outdoors (spring) | Apr 3 – Jun 19 |
| Leaf lettuce | Sow outdoors (fall) | Jun 27 – Aug 13 |
| Spinach | Sow outdoors (spring) | Mar 27 – May 10 |
| Spinach | Sow outdoors (fall) | Jul 14 – Aug 18 |
| Radishes | Sow outdoors (spring) | Apr 3 – May 24 |
| Radishes | Sow outdoors (fall) | Jun 27 – Aug 28 |
| Kale | Sow outdoors (spring) | Apr 20 – May 10 |
| Kale | Sow outdoors (fall) | Jun 20 – Jul 28 |
| Carrots | Sow outdoors (spring) | May 4 – Jun 19 |
| Carrots | Sow outdoors (fall) | May 28 – Jul 13 |
| Garlic | Plant outdoors (fall) | Sep 27 – Oct 28 |
Where these dates come from
ZIP code 12592 is matched to the NOAA station Millbrook 3 W, NY, 15.6 km away, at 413 ft elevation (132 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Millbrook 3 W, NY (used) | 413 ft | May 4 | Oct 7 |
| Falls Village, CT | 550 ft | May 11 | Oct 4 |
| Rhinebeck 4Se, NY | 301 ft | May 14 | Sep 28 |
| Stormville, NY | 915 ft | Apr 21 | Oct 25 |
Frost dates near Wassaic
- Dover Plains, NY 12522 · last May 4, first Oct 7
- Amenia, NY 12501 · last May 11, first Oct 4
- Kent, CT 06757 · last May 11, first Oct 4
- Millbrook, NY 12545 · last May 4, first Oct 7
- South Kent, CT 06785 · last Apr 21, first Oct 25
- Sharon, CT 06069 · last May 11, first Oct 4
- Wingdale, NY 12594 · last May 4, first Oct 7
- Verbank, NY 12585 · last May 4, first Oct 7
Frequently asked questions
- When is the last frost in Wassaic, NY?
- For ZIP code 12592, the average last spring frost (32°F) is May 4, based on NOAA 1991-2020 climate normals for the Millbrook 3 W, NY weather station. There is a 1-in-10 chance of a frost after May 21.
- When is the first frost in Wassaic, NY?
- The average first fall frost (32°F) is October 7. There is a 1-in-10 chance of frost by September 28, so tender plants are at risk from that point on.
- How long is the growing season in 12592?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 155 days long.
- Are these frost dates a forecast?
- No. They are 30-year averages and probabilities from NOAA weather station records. Use them to plan, then watch your local forecast before planting tender crops or leaving them uncovered.