Two Analyses Find That July 2015 Was Warmest on Record. World Likely Headed for Warmest Year As Well.

Mean surface temperature anomalies for the past month, the past three months, and the past 12 months. (Data: NASA GISS. Maps and graph: Makiko Sato, Columbia University) Last month was the warmest July on record globally, according to independent analyses by NASA, and by the Japan Meteorological Agency. With a significant El Niño likely to continue through the end of the year — and possibly peak as one of the strongest on record — it's looking ever more likely that calendar year 2015 will go down as the warmest on record, and possibly by a large margin.