How will rain affect a discs flight?? We're having an argument on how much rain will reduce the distance of a thrown disc. We have a "professional" disc golfer here who says that it would decrease his distance by less than 1 percent. The rest of us aren't buying it. So, assuming that there is no head or tail wind present and no outside friction sources other than the normal friction produced by the atmosphere, how much decrease in distance would one encounter while throwing a disc in the rain. Assume that it's a normal rain shower and not a torrential down pour, whatever normal is.