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Record High Global Temperature in September, January–September

Posted by feww on October 22, 2015

Each of global oceans and global land temperatures also highest on record for the periods: NCDC/NOAA

State of the Climate Report – Blog Summary of Global highlights: September 2015

  • The combined average temperature for global land and ocean surfaces in September 2015 was the highest for September in the 136-year period of record, at 0.90°C (1.62°F) above the 20th century average of 15.0°C (59.0°F).  It surpassed previous record set in 2014 by 0.19°C.
    • September’s high temperature was also the greatest rise above average for any month in the 136-year historical record, surpassing the previous record set in both February and March this year by 0.02°F (0.01°C).
    • Seven months this year, including the past five, have been record warm for their respective months. January was the second warmest January on record and April third warmest.
  • The September globally-averaged land surface temperature was 1.16°C above the 20th century average. This was also the highest for September in the 1880–2015 record.
    • Record warmth was observed across much of South America and parts of Africa, the Middle East, Europe, and Asia.
  •  September globally-averaged sea surface temperature was 0.81°C (1.46°F) above the 20th century average of 16.2°C (61.1°F), the highest departure for September on record, beating the previous record set last year by 0.07°C (0.13°F).

Blog Summary of Global highlights: Year-to-date (January–September 2015)

  • The year-to-date temperature across global land and ocean surfaces was 0.85°C above the 20th century average. This was the highest for January–September in the 1880–2015 record, surpassing the previous record set in 2014 by 0.12°C.
  • The year-to-date globally-averaged land surface temperature was also the highest for January–September in the 1880–2015 record at 1.29°C above the 20th century average. This value surpassed the previous record of 2007 by 0.17°C.
  • The year-to-date globally-averaged sea surface temperature was 0.69°C above the 20th century average and the highest for January–September in the 1880–2015 record. This value surpassed the previous record of 2010 by 0.06°C.

Precipitation

September rainfall across Australia was the third lowest for the month in the 116-year period of record. At only 6.2 mm, it was 37 percent of average precipitation.

The Southwest Monsoon rainfall in India, for the seasonal period June 1st to September 30th, was 86 percent of the 1951–2000 average. About half of India received deficient rainfall (less than 80 percent of average).

NOAA National Centers for Environmental Information, State of the Climate: Global Analysis for September 2015, published online October 2015, retrieved on October 22, 2015 from http://www.ncdc.noaa.gov/sotc/global/201509.

State of the Climate Report – Blog Summary of Global highlights: August 2015

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