Frost dates in Black River Falls, WI

The average last spring frost in Black River Falls is around April 27 and the first fall frost is around October 1. That gives Black River Falls an average growing season of about 157 days.

Last spring frost

Early (10% chance after)March 31
Average (50%)April 27
Late (90%)May 29

First fall frost

Early (10%)August 31
Average (50%)October 1
Late (90% chance before)November 15

See the Black River Falls planting calendar →