Do you think that back in the 1800s at some point DC averaged around 70 inches of snow though? And NYC averaged around 50 inches of snow?
I can buy NYC averaging around 40 inches back in the early to mid 1800s so I guess that's close enough. I'm not familiar with DC climo to hazard a guess, but the highest I would go for them is between 30-35 inches of snow back in the early to mid 1800s.