May 2016 Hottest May On Record, Possibly 13th Straight Record Hottest Month, Pending NOAA Data
The streak continues: May was record warm for the globe, according to NASA data released Monday. Its now even more likely that 2016 will be the hottest year ever recorded, despite the demise of one of the strongest El Niños on record.
NASA put May at 1.67°F (0.93°C) warmer than the 1951-1980 average for the month, the first month since October 2015 to be less than 1.8°F (1°C) above average in their dataset, which extends back to 1880.
So far this year every month has been record warm. February and March actually set consecutive records for the most anomalously warm month, according to data from the National Oceanic and Atmospheric Administration (NOAA). February retained that record by NASAs reckoning.
NOAA will release its global temperature data on Friday. If it also rates May as record warm, it will be the 13th month in a row to reach that mark in its records. NASA and NOAA use slightly different methods to process the temperature data and use different baseline periods for comparison (NOAA uses the 20th century average). Even without Mays record heat, there was a 99 percent chance that 2016 was going to best 2015 as the warmest year on record.
EDIT
http://www.climatecentral.org/news/may-record-hot-month-for-earth-20441