October 2015 was warmest October on record for the globe



October 2015 was warmest October on record for the globe

Year to date also continues to be record warm

November 18, 2015 NCDC, NOAA

The globally averaged temperature over land and ocean surfaces for October 2015 was the highest for October since record keeping began in 1880. This was also the highest departure from average for any month in the 1630 months of record keeping, surpassing the previous record set last month. The year-to-date (January-October) was also record warm.

  • The combined average temperature over global land and ocean surfaces for October 2015 was the highest for October in the 136-year period of record, at 0.98°C (1.76°F) above the 20th century average of 14.0°C (57.1°F). This marked the sixth consecutive month a monthly global temperature record has been broken and was also the greatest departure from average for any month in the 1630 months of recordkeeping, surpassing the previous record high departure set just last month by 0.13°F (0.07°C). The October temperature is currently increasing at an average rate of 0.06°C (0.11°F) per decade.
  • Separately, the October average temperature across global land surfaces was 1.33°C (2.39°F) above the 20th century average, the highest for October on record. This surpasses the previous record set in October 2011 by 0.17°C (0.31°F). This margin is larger than the uncertainty associated with the dataset. Large regions of Earth’s land surfaces were much warmer than average, according to the Land & Ocean Temperature Percentiles map above.
  • Record warmth was observed across the entire southern half of Australia, part of southern and southeastern Asia, much of central and southern Africa, most of Central America and northern South America, and parts of western North America.
  • Regionally, Oceania and the African continent were both record warm. Argentina, part of northeastern Canada, scattered regions of western and central Russia, and central Japan were cooler or much cooler than average. …

This monthly summary, developed by scientists at NOAA’s National Centers for Environmental Information is part of the suite of climate services NOAA provides to government, business, academia and the public to support informed decision-making.

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