FrostDateCheck

Larchmont, NY 10538 Frost Dates

When can you plant in Larchmont, NY?

Zone 7b

Around 04/20 is the usual last spring frost, about 235 days away. The first fall frost typically arrives around 10/26, about 189 frost-free days later.

Larchmont sits in USDA Zone 7b (5 to 10°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.

What to do before the first frost

About 8 weeks of growing season left in Larchmont before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

The actual range around Larchmont's last frost

04/20 is the middle of 30 years of NOAA records, not a promise. Plant by 04/04 and you're betting against frost in roughly 9 years out of 10. 05/06 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Larchmont compares

Larchmont's growing season runs about 189 days, ranking 21,513 of 40,283 US ZIP codes measured here, longest to shortest. Within NY, it ranks 398 of 1,951.

Learn more

the frost range covers how to read the range around Larchmont's dates instead of trusting one. local microclimates covers what one yard in Larchmont can differ from the 10538 normal.