Frost dates in Lost Springs, WY

The average last spring frost in Lost Springs is around June 5 and the first fall frost is around September 17. That gives Lost Springs an average growing season of about 104 days.

Last spring frost

Early (10% chance after)May 15
Average (50%)June 5
Late (90%)June 14

First fall frost

Early (10%)September 6
Average (50%)September 17
Late (90% chance before)October 5

See the Lost Springs planting calendar →