As far back as records go (1895), never has the U.S. strung together 12 straight months warmer than May 2011 to April 2012 according to new data released today by NOAA’s National Climatic Data Center (NCDC) .
The record-setting 12-month period edged out November 1999-October 2000, the 2nd warmest 12-month period, by 0.1°F. The average temperature was 2.8 degrees F above the 20th century average.
In the last year, the U.S. has experienced its second hottest summer, fourth warmest winter (December through February) and warmest March on record. And NCDC announced April 2012 was third warmest on record.
Twenty-two states experienced their warmest May 2011-April 2012 (12-month) period, including Maryland, much of the Northeast and the Upper Midwest. Virginia and several other states had their second warmest May-April period on record.
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