Since they're forecasting snowfalls of 20 to 30 28 to 38 20 to 30 inches in Boston before this storm winds down, I thought I'd see what it would take to break the records, especially the famous "blizzard of '78". Here's the data from the NWS:
Most Snow in 1 Day Most Snow in 2 Days Most Snow in 3 Days
21.0 Jan 20 1978 27.1 Feb 6-7 1978 27.1 Feb 5-7 1978
20.0 Jan 24 1945 21.4 Jan 20-21 1978 25.8 Feb 24-26 1969
19.3 Feb 16 1958 20.7 Feb 24-25 1969 22.8 Jan 22-24 1945
19.0 Feb 7 1978 20.0 Jan 24-25 1945 21.7 Jan 18-20 1978
15.0 Feb 20 1934 19.7 Mar 3-4 1960
14.3 Feb 4 1961
13.8 Jan 7 1977