Frost dates in Lone Tree, CO

The average last spring frost in Lone Tree is around May 12 and the first fall frost is around October 8. That gives Lone Tree an average growing season of about 149 days.

Last spring frost

Early (10% chance after)April 24
Average (50%)May 12
Late (90%)May 25

First fall frost

Early (10%)September 16
Average (50%)October 8
Late (90% chance before)October 27

See the Lone Tree planting calendar →