Sounds like you've been smart priced by google. Have you noticed any Public Service type ads? I would look in to a plugin that only serves adsense ads to organic search traffic. Your traffic will be more targeted that way and should pull your average click value up.
This might be a stupid question, but where exactly do I find out how much I'm getting for each click? I've checked the Adsense help center but I'm still a bit confused.
that's pretty impressive. How about October & September? Just wondering if everyone's average click value is dropping?