18 December 2015
NASA released the global temperature data today and it agrees with that of NASA and Japan that November was the hottest on record. More from NOAA here:
“The combined average temperature over global land and ocean surfaces for November 2015 was the highest for November in the 136-year period of record, at 0.97°C (1.75°F) above the 20th century average of 12.9°C (55.2°F), breaking the previous record of 2013 by 0.15°C (0.27°F). This marks the seventh consecutive month that a monthly global temperature record has been broken. The temperature departure from average for November is also the second highest among all months in the 136-year period of record. The highest departure of 0.99°C (1.79°F) occurred last month.
For the oceans, the November global sea surface temperature was 0.84°C (1.51°F) above the 20thcentury average of 15.8°C (60.4°F), the highest for November on record, surpassing the previous record set last year by 0.20°C (0.36°F). Strong El Niño conditions were present across the central and eastern equatorial Pacific Ocean during November 2015, as evidenced by record warmth across much of this region.
The September–November seasonal temperature was 0.96°C (1.73°F) above the 20th century average of 14.0°C (57.1°F). This marks the highest departure from average for the season in the 136-year period of record, surpassing the previous record set last year by 0.21°C (0.38°F).
The globally-averaged temperature across land surfaces was also the highest on record for September–November, at 1.27°C (2.29°F) above the 20th century average of 9.1°C (48.3°F). Most of the Americas from Mexico through the northern half of South America were record warm, as were scattered regions across Africa, southern and southeastern Asia, and southern Australia, as shown by the Land & Ocean Temperature Percentiles map above.”
The top 25 warmest months on the instrument record are shown below. Notice that ALL of them have been in the last 20 years.