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Last month is likely to go down as the warmest December on record in Boston, according to the National Weather Service in Taunton. As of midday yesterday, the average temperature for the month was 41.4 degrees, said Alan Dunham of the National Weather Service. That would top the previous record, 40.7 degrees in 1990. The official average was set after midnight.
Less than an inch of snow fell in Boston last month, dramatically short of the 6.7 inches in an average December. In December 2005, 10.6 inches fell.
December records were falling across New England. Providence, where temperatures averaged 40.9 degrees, was poised to break its 1990 record of 39.5 degrees. Worcester had an average December temperature of 36.7 degrees, 0.1 degrees higher than its 1923 record. And in Portland, Maine, the average temperature was pushing 34.9 degrees, 0.1 degrees higher than its 2001 record.
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http://www.boston.com/news/local/articles/2007/01/01/december_singes_a_record/