There is not enough information to say exactly how much snow fell at your specific location today.

Snow totals vary a lot over short distances, even within the same city or county, so generalized online reports or maps cannot reliably answer this for your exact spot. The most accurate way to know is to check any nearby official measurement (such as a local weather station or airport report) and compare it with your own measurement using a ruler or yardstick on a flat, undisturbed surface.