Frost dates in Ripon, WI

The average last spring frost in Ripon is around April 29 and the first fall frost is around October 10. That gives Ripon an average growing season of about 164 days.

Last spring frost

Early (10% chance after)March 21
Average (50%)April 29
Late (90%)May 11

First fall frost

Early (10%)October 1
Average (50%)October 10
Late (90% chance before)October 24

See the Ripon planting calendar →