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Posts Tagged ‘climate events’

Second Warmest March since 1880

Posted by feww on April 19, 2017

State of the Climate: Global Climate Report – March 2017

March 2017 was the second warmest since global temperature records began in 1880, with the average temperature (combined global land and SST) rising 1.05°C (1.89°F) above the 20th century average of 12.7°C (54.9°F).

  • Record March 2016 temperature was 0.18°C (0.32°F) higher.
  • March 2017 marks the first time since April 2016 that the global land and ocean temperature departure from average was greater than 1.0°C (1.8°F).

Land – March 2017

Global land temperature during January–March 2017 was also the second highest on record at 1.75°C (3.15°F) above the 20th century average of 3.7°C (38.5°F). Record March 2016 was warmer by 0.31°C (0.56°F).

SST

SST in March 2017 was 0.71°C (1.28°F) above the 20th century average of 15.9°C (60.7°F). This was the second highest March in the 138-year record, behind 2016 by 0.10°C (0.18°F) and ahead of 2015 by +0.08°C (0.14°F).

Q1 -2017

Land and SST temperature for Q1 (January–March) was 0.97°C (1.75°F) above the 20th century average of 12.3°C (54.1°F)—the second highest such period in the 138-year record. This value trails behind the record year set in 2016 by 0.18°C (0.32°F).

Land  temperature for the same period was also the second highest on record at 1.75°C (3.15°F) above the 20th century average of 3.7°C (38.5°F). This value was behind the record warm 2016 by 0.31°C (0.56°F).

SST for the period was 0.68°C (1.22°F) above the 20th century average of 15.9°C (60.6°F)—also the second highest in the 138–year record, behind 2016 by 0.14°C (0.25°F).

Arctic Sea Ice Extent
March 2017 sea ice extent was 7.5 percent below the 1981-2010 average—the smallest March ice cover since satellite records began in 1979.

Antarctic Sea Ice Extent

March 2017 sea ice extent was 34.2 percent below the 1981-2010 average—the smallest March ice cover on record.

NOAA National Centers for Environmental Information, State of the Climate: Global Climate Report for March 2017, published online April 2017, retrieved on April 19, 2017 from https://www.ncdc.noaa.gov/sotc/global/201703.

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U.S. Autumn Warmest on Record

Posted by feww on December 8, 2016

U.S. autumn temperature 2.8ºC above average

The U.S. temperature in autumn was 14.2ºC, 2.8 degrees above average [57.6 degrees F, 4.1 degrees a.a.] surpassing last fall as the warmest on record, according to NOAA’s National Centers for Environmental Information.

  • November was the 2nd warmest on record, with an average temperature across the contiguous U.S. of 8.9ºC, 3.5 degrees above average [48 degrees F, 6.3 degrees a.a. ]
    • Every state in the Continental U.S. and Alaska were warmer than average during November. The precipitation total for the month was 0.50 inch below average.
  • The year-to-date (January-November) average temperature for the contiguous U.S. was 13.8ºC,  1.7 degrees above average [56.9 degrees F, 3.1 degrees a.a.]

Here's a map of significant climate events that occurred in the U.S. in November and during Autumn 2016.

November’s  Selected  Climate Events:

  • Drought: Extreme to exceptional drought in the Lower 48 increased from 4.9% to 8.7% of the area; in the Southeast from 19.7% to 36.2%.
  • Wildfires: In November, 8,560 wildfires raged across the Continental U.S. and burned more than 275,000 acres, most notably in the Southeast.
  • North Dakota Temperatures rocketed 7.1ºC [12.8 degrees F] above average, about 1.1 degrees above the previous record set in 1999.
  • Alaska experienced its warmest year to date on record, with the mercury rising more than 3.3 degrees [6 degrees F] above average.
  • Pacific Northwest Washington state had record rainfall.

NOAA’s report, related maps and images are posted at the NCEI website.

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