Frost dates in Knapp, WI

The average last spring frost in Knapp is around May 12 and the first fall frost is around September 30. That gives Knapp an average growing season of about 141 days.

Last spring frost

Early (10% chance after)April 27
Average (50%)May 12
Late (90%)May 26

First fall frost

Early (10%)September 20
Average (50%)September 30
Late (90% chance before)October 14

See the Knapp planting calendar →