Last frost date in North Branch, Minnesota

May 19

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 June 3.

September 25

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

Source: NOAA U.S. Climate Normals 1991–2020, station Wild Rvr Sp (USC00218986), 10.1 miles from North Branch, elevation 840 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.

What to plant now

Frost dates for North Branch, Minnesota
Early yearAverageLate year
Last frost in springMay 2May 19June 3
First frost in fallSept 10Sept 25Oct 8

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: 128

Planting calendar for North Branch

Fall planting

USDA dates for places whose average first freeze is about September 20 (North Branch: September 25).

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 20 (North Branch: May 19).

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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