Frost dates for 12438Halcottsville, NY
The average last spring frost in Halcottsville is May 19 and the average first fall frost is October 1, giving a typical growing season of about 132 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 19
- Average first fall frost
- Oct 1
- Growing season
- 132 days
Safer after Jun 3 (1-in-10 risk)
Possible by Sep 17 (1-in-10 risk)
Last frost typically in 197 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 18 · Jun 2 · Jun 17 | Sep 5 · Sep 20 · Oct 3 | 109 days | 100% |
| Frost / freeze (32°F) | May 1 · May 19 · Jun 3 | Sep 17 · Oct 1 · Oct 14 | 132 days | 100% |
| Hard freeze (28°F) | Apr 20 · May 5 · May 23 | Sep 29 · Oct 11 · Oct 28 | 158 days | 100% |
Planting calendar for Halcottsville
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 18 – Jun 24 |
| Tomatoes | Transplant outdoors | Jun 4 – Jun 11 |
| Peppers | Start seeds indoors | Apr 18 – May 19 |
| Peppers | Transplant outdoors | Jun 18 – Jul 19 |
| Eggplant | Start seeds indoors | May 5 – Jun 3 |
| Eggplant | Transplant outdoors | Jun 18 – Jul 19 |
| Cucumbers | Sow outdoors | Jun 18 – Jun 21 |
| Summer squash | Sow outdoors | Jun 4 – Jul 19 |
| Winter squash & pumpkins | Sow outdoors | Jun 18 – Jul 19 |
| Snap beans | Sow outdoors | Jun 4 – Jul 14 |
| Sweet corn | Sow outdoors | Jun 4 – Jun 11 |
| Watermelon & cantaloupe | Sow outdoors | Jun 18 – Jul 19 |
| Okra | Sow outdoors | Jun 11 – Jul 4 |
| Peas | Sow outdoors (spring) | Apr 18 – Jun 3 |
| Potatoes | Plant outdoors (spring) | Apr 18 – Jun 18 |
| Onions | Start seeds indoors (spring) | Mar 7 – Apr 3 |
| Onions | Transplant outdoors (spring) | May 5 – Jun 3 |
| Broccoli | Start seeds indoors (spring) | Mar 31 – May 4 |
| Broccoli | Transplant outdoors (spring) | May 5 – Jun 3 |
| Broccoli | Start seeds indoors (fall) | Jun 1 – Jun 11 |
| Broccoli | Transplant outdoors (fall) | Jul 1 – Jul 12 |
| Cabbage | Start seeds indoors (spring) | Mar 21 – Apr 18 |
| Cabbage | Transplant outdoors (spring) | Apr 18 – May 19 |
| Cabbage | Start seeds indoors (fall) | May 22 – Jun 21 |
| Cabbage | Transplant outdoors (fall) | Jun 21 – Jul 22 |
| Leaf lettuce | Sow outdoors (spring) | Apr 18 – Jul 4 |
| Leaf lettuce | Sow outdoors (fall) | Jun 21 – Aug 7 |
| Spinach | Sow outdoors (spring) | Apr 11 – May 25 |
| Spinach | Sow outdoors (fall) | Jul 8 – Aug 12 |
| Radishes | Sow outdoors (spring) | Apr 18 – Jun 8 |
| Radishes | Sow outdoors (fall) | Jun 21 – Aug 22 |
| Kale | Sow outdoors (spring) | May 5 – May 25 |
| Kale | Sow outdoors (fall) | Jun 14 – Jul 22 |
| Carrots | Sow outdoors (spring) | May 19 – Jul 4 |
| Carrots | Sow outdoors (fall) | May 22 – Jul 7 |
| Garlic | Plant outdoors (fall) | Sep 21 – Oct 22 |
Where these dates come from
ZIP code 12438 is matched to the NOAA station Delhi 2 Se, NY, 25.5 km away, at 1,460 ft elevation (46 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Delhi 2 Se, NY (used) | 1,460 ft | May 19 | Oct 1 |
| Slide Mtn, NY | 2,650 ft | May 6 | Oct 7 |
| Lansing Manor, NY | 1,100 ft | May 18 | Oct 2 |
| Downsville Dam, NY | 1,200 ft | May 15 | Oct 3 |
Frost dates near Halcottsville
- Margaretville, NY 12455 · last May 20, first Sep 27
- Fleischmanns, NY 12430 · last May 20, first Sep 27
- New Kingston, NY 12459 · last May 19, first Oct 1
- Denver, NY 12421 · last May 20, first Sep 27
- Arkville, NY 12406 · last May 6, first Oct 7
- Roxbury, NY 12474 · last May 19, first Oct 1
- Highmount, NY 12441 · last May 20, first Sep 27
- Pine Hill, NY 12465 · last May 19, first Oct 1
Frequently asked questions
- When is the last frost in Halcottsville, NY?
- For ZIP code 12438, the average last spring frost (32°F) is May 19, based on NOAA 1991-2020 climate normals for the Delhi 2 Se, NY weather station. There is a 1-in-10 chance of a frost after June 3.
- When is the first frost in Halcottsville, NY?
- The average first fall frost (32°F) is October 1. There is a 1-in-10 chance of frost by September 17, so tender plants are at risk from that point on.
- How long is the growing season in 12438?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 132 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.