The first three months of 2012 were the mildest on record in the US (slightly warmer than 1921) and so far in 2013 those same months have been among the coldest on record.
There has been no trend in January-March temperatures in the US over the last 90 years.
The 2013 numbers will come up some as the month progresses, but as it stands now the first three months of 2013 are ranked among the ten coldest.

The Delinquent Teenager