Frost dates for ZIP 10577 (Harrison, NY)
Average last spring and first fall frost dates with 10%, 50% and 90% odds, from NOAA's 1991–2020 climate normals for the nearest weather station, Westchester Co AP, NY (2 miles away).
- Average last spring frostApr 1250% chance of a 32°F freeze after this date
- Average first fall frostOct 3150% chance of a 32°F freeze by this date
- Growing season (frost-free)200 daysmedian, 32°F threshold
- USDA hardiness zone7a0 to 5°F avg. coldest night
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This week in your yard
As of Oct 17, 2026, from your frost dates, zone and soil temperature. Lawn timing · Vegetables · Pruning · Plants
Soil temperature now
2-inch depth
56°F 55°F or warmer
24-hour average · latest 51°F, as of Oct 17, 9:00 PM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Millbrook 3 W (52 mi).
4-inch depth
59°F 55°F or warmer
24-hour average · latest 56°F, as of Oct 17, 9:00 PM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Millbrook 3 W (52 mi).
Fall: Texas A&M AgriLife times fall pre-emergent (for winter weeds such as annual bluegrass) to soil cooling to about 70°F for several days. The 50–55°F band is the spring trigger. Always read and follow the product label.
7-day forecast and frost risk
The latest National Weather Service 7-day forecast and any Frost Advisory or Freeze Warning for 10577 load here. You can also open the NWS forecast for this ZIP.
Pre-emergent
Soil is 59°F at 4 inches (estimated soil temperature, not a station reading). Fall pre-emergent (annual bluegrass, winter weeds): window open as soil cools through the 70s and 60s.
Fertilizer window
Lawn region: North (cool-season). Timing only; always follow the product label.
- Kentucky bluegrass (cool-season): Early fall: Around Labor Day (late August–September); Late fall: Late October–November, before the ground freezes; Late spring: Optional around Memorial Day. Avoid: Early-spring and midsummer feeding (pushes top growth, favors crabgrass).
Plant now
Prune now
No frost-timed pruning windows are open this week.
Your average first frost is Oct 31: skip heavy pruning in the 6–8 weeks before it, because new growth may not harden off in time.
Spring-flowering shrubs are pruned right after their flowers fade, not by date. See the pruning guide.
Last spring frost odds
| Chance of a 32°F freeze after this date | Date |
|---|---|
| 90% (early: most years still freeze after this) | Apr 1 |
| 50% (the "average" last frost) | Apr 12 |
| 10% (cautious: only 1 year in 10 freezes later) | Apr 27 |
Most gardeners plant frost-tender crops (tomatoes, peppers, basil) after the 50% date, and closer to the 10% date for less risk.
First fall frost odds
| Chance the first 32°F freeze has happened by this date | Date |
|---|---|
| 10% (early: 1 year in 10 freezes this soon) | Oct 15 |
| 50% (the "average" first frost) | Oct 31 |
| 90% (late: most years have frozen by now) | Nov 14 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Apr 26 | Oct 18 |
| 32°F (freeze) | Apr 12 | Oct 31 |
| 28°F (hard freeze) | Apr 1 | Nov 13 |
n/a means NOAA did not publish a date at that threshold for this station (usually because it rarely gets that cold).
Vegetable planting calendar for 10577
Dates count from your average last spring frost (Apr 12) and first fall frost (Oct 31). Half of years have a frost after the spring date, so give tender crops (tomatoes, peppers, squash) some slack.
| Crop | Start indoors | Spring planting | Fall planting |
|---|---|---|---|
| Tomato | Feb 15–Mar 1 | Apr 19–May 3 (transplant) | – |
| Pepper (sweet and hot) | Feb 1–15 | Apr 26–May 10 (transplant) | – |
| Eggplant | Feb 1–15 | Apr 26–May 10 (transplant) | – |
| Tomatillo | Feb 15–Mar 1 | Apr 19–May 3 (transplant) | – |
| Lettuce | Feb 15–Mar 1 | Mar 22–Apr 12 (transplant) Mar 15–Apr 26 (sow outdoors) | Sep 5–26 (transplant) Aug 22–Sep 19 (sowing) |
| Spinach | – | Mar 1–22 (sow outdoors) | Sep 5–26 (sowing) |
| Kale | Feb 15–Mar 1 | Mar 15–29 (transplant) Mar 15–29 (sow outdoors) | Aug 8–Sep 5 (transplant) Jul 25–Aug 22 (sowing) |
| Collards | Feb 15–Mar 1 | Mar 15–Apr 12 (transplant) Mar 15–Apr 12 (sow outdoors) | Aug 8–Sep 5 (transplant) Jul 25–Aug 22 (sowing) |
| Broccoli | Feb 1–15 | Mar 15–29 (transplant) | Jul 25–Aug 22 (transplant) |
| Cabbage | Feb 1–15 | Mar 15–29 (transplant) | Jul 25–Aug 22 (transplant) |
| Cauliflower | Feb 1–15 | Mar 29–Apr 12 (transplant) | Jul 25–Aug 22 (transplant) |
| Brussels sprouts | Jan 18–Feb 1 | Mar 15–29 (transplant) | Jul 11–Aug 1 (transplant) |
| Kohlrabi | Feb 15–Mar 1 | Mar 15–29 (transplant) Mar 15–29 (sow outdoors) | Aug 22–Sep 5 (sowing) |
| Bok choy / Asian greens | – | Mar 15–29 (sow outdoors) | Sep 5–19 (sowing) |
| Arugula | – | Mar 15–Apr 12 (sow outdoors) | Sep 5–Oct 3 (sowing) |
| Mustard greens | – | Mar 15–Apr 5 (sow outdoors) | Sep 5–19 (sowing) |
| Swiss chard | Mar 1–15 | Mar 29–Apr 19 (transplant) Mar 29–Apr 26 (sow outdoors) | Aug 22–Sep 5 (sowing) |
| Beet | – | Mar 15–Apr 12 (sow outdoors) | Aug 22–Sep 5 (sowing) |
| Carrot | – | Mar 22–Apr 19 (sow outdoors) | Aug 8–22 (sowing) |
| Radish | – | Mar 8–Apr 19 (sow outdoors) | Sep 19–Oct 3 (sowing) |
| Turnip | – | Mar 15–Apr 5 (sow outdoors) | Aug 22–Sep 5 (sowing) |
| Parsnip | – | Mar 22–Apr 12 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Feb 15–Mar 15 (sow outdoors) | Aug 8–22 (sowing) |
| Onion (bulbing) | Jan 18–Feb 1 | Mar 1–15 (transplant) | – |
| Green onion / scallion | – | Mar 1–29 (sow outdoors) | Aug 22–Sep 5 (sowing) |
| Leek | Jan 18–Feb 1 | Mar 15–29 (transplant) | – |
| Garlic | – | – | Sep 19–Oct 17 (sowing) |
| Shallot | – | Mar 1–15 (transplant) | Sep 19–Oct 17 (sowing) |
| Potato | – | Mar 15–29 (transplant) | Jul 11–25 (transplant) |
| Sweet potato | – | May 3–17 (transplant) | – |
| Sweet corn | – | Apr 19–May 3 (sow outdoors) | – |
| Bean, bush (snap) | – | Apr 19–May 3 (sow outdoors) | – |
| Bean, pole | – | Apr 19–May 3 (sow outdoors) | – |
| Lima bean | – | Apr 26–May 10 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | May 3–24 (sow outdoors) | – |
| Cucumber | Mar 15–22 | Apr 19–May 3 (transplant) Apr 19–May 3 (sow outdoors) | – |
| Summer squash / zucchini | Mar 15–22 | Apr 19–May 3 (transplant) Apr 19–May 3 (sow outdoors) | – |
| Winter squash | Mar 15–22 | Apr 19–May 3 (transplant) Apr 19–May 3 (sow outdoors) | – |
| Pumpkin | – | Apr 19–May 3 (sow outdoors) | – |
| Watermelon | Mar 15–22 | Apr 26–May 10 (transplant) Apr 26–May 10 (sow outdoors) | – |
| Cantaloupe / muskmelon | Mar 15–22 | Apr 26–May 10 (transplant) Apr 26–May 10 (sow outdoors) | – |
| Okra | Mar 1–15 | Apr 26–May 10 (transplant) Apr 26–May 10 (sow outdoors) | – |
| Celery | Jan 18–Feb 1 | Apr 19–26 (transplant) | – |
| Basil | Mar 1–15 | Apr 19–May 3 (transplant) Apr 19–May 3 (sow outdoors) | – |
| Cilantro | – | Mar 29–Apr 26 (sow outdoors) | Sep 5–19 (sowing) |
| Parsley | Feb 1–15 | Mar 29–Apr 12 (transplant) Mar 22–Apr 12 (sow outdoors) | – |
| Dill | – | Apr 12–26 (sow outdoors) | Sep 5–19 (sowing) |
| Sunflower | – | Apr 12–26 (sow outdoors) | – |
| Asparagus (crowns) | – | Mar 15–29 (transplant) | – |
| Rhubarb (crowns) | – | Mar 15–29 (transplant) | – |
| Strawberry (plants) | – | Mar 15–29 (transplant) | Aug 22–Sep 19 (transplant) |
Typical ranges from university extension planting calendars, adjusted to your frost dates. Probabilities, not guarantees. Fall windows that would overlap spring planting are left out, as are fall crops of frost-tender plants where the frost-free season is under 210 days.
Where these numbers come from
Station: Westchester Co AP, NY (NOAA GHCN-Daily ID USW00094745), elevation 379 ft, 2.0 miles from the ZIP's center point. NOAA completeness flag: S (standard, 24+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Dobbs Ferry-ardsley, NY | 7 mi | Apr 20 | Oct 26 |
| Stamford 5 N, CT | 10 mi | Apr 17 | Oct 23 |
| Bronx, NY | 16 mi | Apr 1 | Nov 16 |
The average last-frost dates of these stations span 19 days, a rough guide to local variation. See data sources & methods.
Frost questions for 10577
When is the last frost in 10577?
The average (50% chance) last spring freeze of 32°F for ZIP 10577 is April 12. For a more cautious planting date, use April 27, when only 1 year in 10 still sees a later freeze.
When is the first frost in 10577?
The average first fall freeze is October 31. In 1 year in 10 it comes by October 15.
What hardiness zone is 10577?
ZIP 10577 is in USDA zone 7a (0 to 5°F average coldest winter night), per the 2023 USDA Plant Hardiness Zone Map ZIP listing.
What is the soil temperature in 10577 right now?
This page shows the latest 2-inch and 4-inch soil temperature from the nearest public soil station (USDA SCAN, NOAA USCRN or TexMesonet), or a labeled estimate when no station is close, against the 50–55°F spring pre-emergent band.
Nearby ZIP codes
10573 Rye Brook 10605 White Plains 10601 White Plains 10604 Harrison 10606 White Plains 10603 White Plains 10580 Rye 06831 Rock Ridge
Other ZIP codes in Westchester County
10501 10502 10503 10504 10505 10506 10507 10510 10511 10514 10517 10518 10519 10520 10522 10523 10526 10527 10528 10530 10532 10533 10535 10536 All Westchester County frost dates · New York frost dates
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