Frost dates in Colesburg, IA

The average last spring frost in Colesburg is around April 20 and the first fall frost is around October 13. That gives Colesburg an average growing season of about 176 days.

Last spring frost

Early (10% chance after)April 9
Average (50%)April 20
Late (90%)May 5

First fall frost

Early (10%)October 1
Average (50%)October 13
Late (90% chance before)November 1

See the Colesburg planting calendar →