Frost dates in Mercer, MO

The average last spring frost in Mercer is around April 22 and the first fall frost is around October 11. That gives Mercer an average growing season of about 172 days.

Last spring frost

Early (10% chance after)April 7
Average (50%)April 22
Late (90%)May 9

First fall frost

Early (10%)September 25
Average (50%)October 11
Late (90% chance before)October 29

See the Mercer planting calendar →