Frost dates in Blue Grass, IA

The average last spring frost in Blue Grass is around April 12 and the first fall frost is around October 23. That gives Blue Grass an average growing season of about 194 days.

Last spring frost

Early (10% chance after)March 27
Average (50%)April 12
Late (90%)May 4

First fall frost

Early (10%)October 6
Average (50%)October 23
Late (90% chance before)November 11

See the Blue Grass planting calendar →