Last frost date in New Castle, Indiana

April 27

Average last frost in spring. In an early year (1 in 10) it's over by April 11; in a late year (1 in 10) it comes after May 12.

October 17

Average first frost in fall. 1 year in 10 it comes by October 4.

Source: NOAA U.S. Climate Normals 1991–2020, station New Castle 3 SW (USC00126164), 2.2 miles from New Castle, elevation 991 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.

What to plant now

Frost dates for New Castle, Indiana
Early yearAverageLate year
Last frost in springApr 11Apr 27May 12
First frost in fallOct 4Oct 17Oct 28

Frost-free days in an average year: 173

Light frost, frost and hard freeze in New Castle
Chance in a yearAverage last in springAverage first in fall
Light frost (36°F)Every yearMay 6Oct 7
Frost (32°F)Every yearApr 27Oct 17
Hard freeze (28°F)Every yearApr 15Oct 27

Nights at 32°F or colder in an average year: 132

What to plant now in New Castle

Planting dates: USDA Home and Garden Bulletin No. 9 (1967), “Suburban and Farm Vegetable Gardens,” tables 4 and 5. How we match the table.

Nearby in Indiana

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