Science

September 2015 was hottest on record, breaking 7th monthly record this year

This past September was the hottest ever worldwide — the seventh monthly record set this year.

2015 on track to beat 2014 as hottest year ever

Luis Soto, 8, cools off in the splash pad at Catalina Park in Tucson, Ariz., in mid-August, when temperatures highs of 43 degrees or higher in the region. The U.S. National Oceanic and Atmospheric Administration calculated a global temperature for September of 15.9 C (60.62 F), beating the record set in 2014. (Mamta Popat /Arizona Daily Star/Associated Press)

This past September was the hottest ever worldwide — the seventh monthly record set this year.

The U.S. National Oceanic and Atmospheric Administration calculated a global temperature for September of 15.9 C (60.62 F), beating the record set in 2014.

Seven of the nine months this year have broken monthly global heat records, tying 1998 for the most monthly heat records broken. This year, only January and April did not surpass records going back to 1880.

Climate scientists blame man-made global warming and El Nino.

This is has been the hottest first nine months of any year. NOAA climate scientist Jessica Blunden said it would take a highly unlikely cold stretch the rest of the year for 2015 not to pass 2014 as the hottest on record.

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