Last frost date in Marshfield, Wisconsin

May 5

Average last frost in spring. In an early year (1 in 10) it's over by April 22; in a late year (1 in 10) it comes after May 20.

October 5

Average first frost in fall. 1 year in 10 it comes by September 21.

Source: NOAA U.S. Climate Normals 1991–2020, station Marshfield Muni AP (USW00094985), 1.9 miles from Marshfield, elevation 1,255 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.

What to plant now

Frost dates for Marshfield, Wisconsin
Early yearAverageLate year
Last frost in springApr 22May 5May 20
First frost in fallSept 21Oct 5Oct 18

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: 152

Planting calendar for Marshfield

Fall planting

USDA dates for places whose average first freeze is about September 30 (Marshfield: October 5).

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

Spring planting

USDA dates for places whose average last freeze is about April 30 (Marshfield: May 5).

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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