U.S. April temperatures third warmest on record

Warmer and drier than average temperatures continued for much of the nation in April. These temperatures, when combined with the first quarter and previous 11 months, calculate to the warmest year-to-date and 12-month periods on record for the contiguous United States.

Read more http://www.ncdc.noaa.gov/sotc/summary-info/national/2012/4