Frost dates in Mountain View, CO

The average last spring frost in Mountain View is around May 9 and the first fall frost is around October 6. That gives Mountain View an average growing season of about 150 days.

Last spring frost

Early (10% chance after)April 23
Average (50%)May 9
Late (90%)May 21

First fall frost

Early (10%)September 14
Average (50%)October 6
Late (90% chance before)October 17

See the Mountain View planting calendar →