Frost dates in Roseburg, OR

The average last spring frost in Roseburg is around March 31 and the first fall frost is around November 14. That gives Roseburg an average growing season of about 228 days.

Last spring frost

Early (10% chance after)March 4
Average (50%)March 31
Late (90%)April 26

First fall frost

Early (10%)October 21
Average (50%)November 14
Late (90% chance before)December 8

See the Roseburg planting calendar →