Frost dates in Bethany, MO

The average last spring frost in Bethany is around April 23 and the first fall frost is around October 11. That gives Bethany an average growing season of about 171 days.

Last spring frost

Early (10% chance after)April 6
Average (50%)April 23
Late (90%)May 7

First fall frost

Early (10%)September 26
Average (50%)October 11
Late (90% chance before)October 28

See the Bethany planting calendar →