Just to be clear, we are talking about measuring snow, not whatever else you measure to that increment but I digress. We all know that snowfall measurements are by far the most inaccurate of all weather measurements. Sometimes it's innocent enough, sometimes its done because folks need to stoke their ego for some odd reason, and sometimes is because there are old and new guidelines out there as CP mentioned above. My highest total on the snowboard was 3.1" yesterday but OTG I had 4.3" (gotta keep the grass longer next fall).