Frost dates in Green Mountain Falls, CO

The average last spring frost in Green Mountain Falls is around June 13 and the first fall frost is around September 9. That gives Green Mountain Falls an average growing season of about 88 days.

Last spring frost

Early (10% chance after)May 31
Average (50%)June 13
Late (90%)July 28

First fall frost

Early (10%)August 2
Average (50%)September 9
Late (90% chance before)September 23

See the Green Mountain Falls planting calendar →