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ZIP 10001 planting calendar

When to plant watermelon in New York, NY - Zone 7b

In ZIP 10001, plant watermelon around Apr 22; this uses the New York frost station, USDA zone 7b, and watermelon timing rules.

Your New York calendar has a 211-day estimated frost-free season. This estimate uses the representative New York frost station, USDA zone 7b, and watermelon timing rules.

Source: new-york-central-park frost station, USDA zone 7b, last updated 2026-06-28. Verify locally before planting high-value crops because microclimates, current weather, and yard exposure can move the safe date.

Reviewed by GrowZone Editorial. Calculated from the new-york-central-park frost station and USDA zone 7b, last updated 2026-06-28.

In the New York area, watermelon timing follows the New York frost window, so the local ZIP date can differ from a broad zone-only calendar.

USDA zone 7b New York frost station Cornell Cooperative Extension Updated 2026-06-28
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Answer first

When to start watermelon seeds indoors in New York

In ZIP 10001, start watermelon seeds indoors around Mar 18, about 21 days before the Apr 8 last-frost estimate.

Start watermelon seeds indoors in New York around Mar 18, about 21 days before the Apr 8 last-frost estimate.

Seed starting schedule

Watermelon dates for New York, NY

StepDateHow to use it
Start IndoorsMarch 18, 2026Start seeds under lights or in a bright indoor seed-starting space.
Transplant OutdoorsApril 22, 2026Move hardened-off seedlings outside after the frost-risk window.
Direct SowApril 22, 2026Sow seed outside when the crop and soil can handle the window.

Last frost

When is the last frost in New York?

New York (ZIP 10001) has an average last spring frost around Apr 8.

First frost

When is the first frost in New York?

The average first fall frost is around Nov 5, giving about 211 frost-free days.

Season map

Watermelon windows by month

JanFebMarAprMayJunJulAugSepOctNovDec
Start indoors
Mar 18
Direct sow
Apr 22
Transplant
Apr 22
Harvest
Jul 21
Frost watch
Aug 7

Reminder workflow

Every date has a next action

Start watermelon indoorsMar 18
Last frost windowApr 8
Direct sow watermelonApr 22
Transplant watermelonApr 22
First watermelon harvest windowJul 21
Last watermelon sowing targetAug 7
SignalValueWhy it matters
Last frost estimateApril 8, 2026Warm-season transplant risk starts falling after this window.
First frost estimateNovember 5, 2026Fall planting counts backward from this date.
Season length211 daysLonger seasons can support succession crops.
Spacing36-60 inAirflow and root space affect yield.
Soil temperature70 F+Seeds and transplants stall in cold soil.

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Local data

Why this date changes by ZIP

New York frost history and USDA zone 7b shift the safe planting window. GrowZone uses a local representative station instead of one national rule.

Cornell Cooperative Extension is the kind of local source to verify against when a crop is expensive, weather is unusual, or your yard has a cold pocket.

Crop note

Watermelon timing notes

Wait for warm soil; watermelon stalls when nights stay cool. Watermelon prefers full sun, 36-60 in spacing, and soil near 70 F+.

For fall, count backward from Nov 5. A conservative last sowing target is around Aug 7.