Frost dates in Dillon, CO

The average last spring frost in Dillon is around July 14 and the first fall frost is around August 11. That gives Dillon an average growing season of about 28 days.

Last spring frost

Early (10% chance after)June 23
Average (50%)July 14
Late (90%)July 31

First fall frost

Early (10%)August 1
Average (50%)August 11
Late (90% chance before)September 4

See the Dillon planting calendar →