I can't count the amount of storms where snow fell for 12 hrs then changed to rain and melted or was dry and sublimated or blew all around. So 10 inches fell in 6 hrs then melted almost out the next 18 so I only had a half inch. Or my exposed yard, snowboard was wiped clean by incredible winds so after averaging 10 spots I got 3 inches ave when 12 fell. Makes zero sense unless you are measuring depth.