Last month was the warmest November since record-keeping began 134 years ago, the National Oceanic and Atmospheric Administration (NOAA) reported Tuesday. The latest data, combined with more recently reported by NASA, showed a record global average surface temperature for November, particularly in Eurasia, where Russia experienced its warmest November in history.
According to NOAA, the global average surface temperature for November was 1.4°F above the long-term average for the month, and much of Russia, northwest Kazakhstan, south India, southern Madagascar, parts of the central and south Indian Ocean, and areas of the Pacific Ocean were record warm. That surpassed the previous record-holder of November 2004 by 0.05°F, and is the 6th-highest monthly departure from average of any month on record, according to NOAA.
Russia had its warmest November since records began there in 1891, with some parts of the country, including Siberia and the Arctic islands in the Kara Sea, seeing temperatures that were more than 14°F above the typical monthly average.
In contrast, not a single region of the globe was record cold for the month, NOAA said. The only areas that were cooler than average were northern Australia, parts of North America, southwest Greenland, and parts of the Southern Ocean near South America.
According to NOAA, November's warmth catapulted the year-to-date to the 4th warmest year on record, up from the 7th warmest, which is where it stood as of the end of October. That puts 2013 on track to be the warmest year on record without an El Niño event, depending on where December temperatures rank.
El Niño events feature warmer-than-average ocean temperatures in the tropical Pacific Ocean and tend to alter weather patterns and ocean currents in ways that provide an added boost — on top of manmade global warming and other climate cycles — to global average surface temperatures. NOAA said that while milder-than-average global ocean conditions contributed to November's record warm, the month was the 19th straight without an El Niño or La Niña event present in the tropical Pacific Ocean.
Each of the top three years in NOAA’s dataset — 2010, 2005, and 1998, respectively — were El Niño years or exhibited the lingering effects of an El Niño.
The additional heat injected into the climate system from El Niño events accentuates the impacts of long-term global warming from manmade emissions of greenhouse gases and other causes. Although most climate outlooks show the continued absence of El Niño through the spring of 2014, should El Niño conditions develop at some point in the new year, it will increase the likelihood that 2014 will set a new global temperature record.
