The Washington Post reports this shocking news
The GHCN station at nearby Beltsville, Maryland says that 2012 is the second warmest year.
But let’s move away from the urban sprawl, to the closest GHCN HCN station in Virginia. November was the coldest on record, temperatures have been declining for 80 years, and 2012 as a whole was below normal. The Washington DC temperature record is thoroughly contaminated by UHI, and is completely useless as a climate indicator.