June 2011 ranked in the top five for warmest on record globally in the satellite record.
According to Remote Sensing Systems or RSS, June 2011 was the fifth warmest June in the satellite record, which goes back to 1979.
June 2011 ended up averaging .277 degrees celsius above normal for the lower troposphere, according to RSS.
Image courtesy of RSS.
The continental USA had a warm month compared to normal, averaging .536 celsius above normal. May 2011 averaged .412 celsius below normal.
The hot conditions clearly persisted across the south-central USA during June as the extreme drought further added to the heat. With such a lack of moisture in the ground across that region the sun's energy goes mostly toward heating the ground, rather than evaporation, which is a cooling process.
The longer term trend for the lower troposphere globally is +.143 c per decade. See below.
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