Frost dates in Castle, OK

The average last spring frost in Castle is around March 29 and the first fall frost is around November 8. That gives Castle an average growing season of about 224 days.

Last spring frost

Early (10% chance after)March 14
Average (50%)March 29
Late (90%)April 13

First fall frost

Early (10%)October 23
Average (50%)November 8
Late (90% chance before)November 25

See the Castle planting calendar →