Last frost date in Lake Grove, New York

April 10

Average last frost in spring. In an early year (1 in 10) it's over by March 31; in a late year (1 in 10) it comes after April 25.

November 2

Average first frost in fall. 1 year in 10 it comes by October 18.

Source: NOAA U.S. Climate Normals 1991–2020, station Islip Li Macarthur AP (USW00004781), 4.5 miles from Lake Grove, elevation 84 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.

What to plant now

Frost dates for Lake Grove, New York
Early yearAverageLate year
Last frost in springMar 31Apr 10Apr 25
First frost in fallOct 18Nov 2Nov 15

An early or late year is one in 10: 1 year in 10 the frost comes before the early date, and 1 year in 10 after the late date.

Frost-free days in an average year: 207

Planting calendar for Lake Grove

Fall planting

USDA dates for places whose average first freeze is about October 30 (Lake Grove: November 2).

USDA lists chervil and chives, garlic, horseradish, leeks, parsnips, shallots as generally spring-planted here.

Spring planting

USDA dates for places whose average last freeze is about April 10 (Lake Grove: April 10).

USDA lists chinese cabbage as generally fall-planted here.

Planting dates: USDA Home and Garden Bulletin No. 9 (1967), “Suburban and Farm Vegetable Gardens,” tables 4 and 5 (earliest safe spring and latest safe fall dates), applied to this place's NOAA frost dates. “Plants” means setting out transplants, not sowing seed. How we match the table.

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