Past 12 months were warmest on record for Maryland, the nation

(National Climatic Data…)
May 08, 2012|By Scott Dance

The 12 months ending in April were the warmest in 117 years Maryland, the Northeast, and the nation.

The year from May 2011 to April 2012 averaged 55.7 degrees nationwide, 2.8 degrees above the average temperature for the 20th century. That was the warmest of 117 years that are ranked by the National Climatic Data Center.

Maryland is one of 22 states whose average temperature over the year ranked as the warmest on record. Another 19 states had average temperatures that ranked among the top 10 warmest over the year.

It isn't surprising given that Maryland, like many other states, has had a string of warmer-than-normal months. The pattern goes all the way back to February 2011, a span of 15 months.

The previous record for warmest 12-month period was set from November 1999 to October 2000. Six out of the top 10 warmest 12-month periods are during 1999 and 2000. The year ending in March ranks as the fourth-warmest on record, 2.6 degrees warmer than normal.

The climate data center's most recent report also shows that the lack of rain in Maryland and Delaware for the first four months of 2012 ranks as the driest on record for the first third of the year. Look out for a blog post on the developing drought conditions soon.

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