I suppose the AHJ makes the rules but article 100 says wet locations are "... unprotected locations exposed to weather".
In 2008 they also removed the confusion about above grade wet location raceways
300.9 Raceways in Wet Locations Above Grade.
Where raceways are installed in wet locations above grade, the interior of these raceways shall be considered to be a wet location. Insulated conductors and cables installed in raceways in wet locations above grade shall comply with 310.8(C).
