NASA GISS: Record Global Temperatures in 2015.

NOAA Scientists confirmed 2015 to be the warmest year on record, according to this press release:"During 2015, the average temperature across global land and ocean surfaces was 1.62°F (0.90°C) above the 20th century average. This was the highest among all years in the 1880-2015 record, surpassing the previous record set last year by 0.29°F (0.16°C). This is also the largest margin by which the annual global temperature record has been broken. Ten months had record high temperatures for their respective months during the year. The five highest monthly departures from average
for any month on record all occurred during 2015. Since 1997, which at the time was the warmest year on record, 16 of the subsequent 18 years have been warmer than that year."