This is highly flawed my man. Before the 1940s the record keeping was done right on the shoreline, literally on the beach. So of course snowfall depth/totals would be much lower then where they are now at Buffalo International Airport (14 miles inland). I didn't expect you to know this though. You can only use 1943 onward for Buffalo stats.
1943-1944 is the first datapoint you can use
https://www.weather.gov/buf/BUFsnowdepth
The average number of days for the past 76 winter seasons are:
1 inch - 71.2 days 6 inches - 24.6 days 12 inches 8.6 days