Zhure said:"Melee and Ranged Weapons: Melee weapons are used for making melee attacks, though some of them can be thrown as well. Ranged weapons are thrown weapons or projectile weapons that are not effective in melee. Apply a character's Strength bonus to damage dealt by thrown weapons but not to damage dealt by projectile weapons (except for mighty composite shortbows or longbows)."
Greg
Based on that quote, it looks like daggers are always melee weapons, even when being thrown.