Frost dates in Moscow, ID

The average last spring frost in Moscow is around May 19 and the first fall frost is around September 23. That gives Moscow an average growing season of about 127 days.

Last spring frost

Early (10% chance after)April 26
Average (50%)May 19
Late (90%)June 14

First fall frost

Early (10%)September 8
Average (50%)September 23
Late (90% chance before)October 19

See the Moscow planting calendar →