Direct quote from the WSGA regarding posting your golf scores during the Inactive Posting Season.
"It is the policy of the WSGA that scores from rounds played in Idaho, Oregon, and Washington are only acceptable for handicapping purposes when played between March 1st and November 15th(Active Season). Rounds played between November 16th and the last day of February each year(Inactive Season) in Idaho, Oregon, and Washington are Never Acceptable for handicapping purposes.