Last frost date in Pingree Grove, Illinois

April 26

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

October 18

Average first frost in fall. 1 year in 10 it comes by October 3.

Source: NOAA U.S. Climate Normals 1991–2020, station Elgin (USC00112736), 7.7 miles from Pingree Grove, elevation 763 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.

What to plant now

Frost dates for Pingree Grove, Illinois
Early yearAverageLate year
Last frost in springApr 12Apr 26May 12
First frost in fallOct 3Oct 18Oct 31

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: 174

Planting calendar for Pingree Grove

Fall planting

USDA dates for places whose average first freeze is about October 20 (Pingree Grove: October 18).

USDA lists chervil and chives, garlic, horseradish, leeks, onion plants, onion seed, onion sets, parsnips, garden peas, shallots as generally spring-planted here.

Spring planting

USDA dates for places whose average last freeze is about April 30 (Pingree Grove: April 26).

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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