Last frost date in Detroit Lakes, Minnesota

May 15

Average last frost in spring. In an early year (1 in 10) it's over by May 2; in a late year (1 in 10) it comes after May 30.

September 24

Average first frost in fall. 1 year in 10 it comes by September 9.

Source: NOAA U.S. Climate Normals 1991–2020, station Detroit Lakes 1 Nne (USC00212142), 2.1 miles from Detroit Lakes, elevation 1,355 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.

What to plant now

Frost dates for Detroit Lakes, Minnesota
Early yearAverageLate year
Last frost in springMay 2May 15May 30
First frost in fallSept 9Sept 24Oct 6

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: 130

Planting calendar for Detroit Lakes

Fall planting

USDA dates for places whose average first freeze is about September 20 (Detroit Lakes: September 24).

USDA lists 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 May 10 (Detroit Lakes: May 15).

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.

Nearby in Minnesota

All 103 places in Minnesota