NOAA - Each Of The Past 12 Months Has Been The Warmest Month In 137-Year Instrumental Record

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Each of the past 12 months has set a record for being the warmest such month in 137 years of record-keeping, according to the National Oceanic and Atmospheric Administration (NOAA). The agency released new data on Wednesday finding that April also was the warmest such month on record for the globe, creating the 12-months of consecutive warmth, which has never happened before since instrumental records began in 1880.

According to NOAA, global average surface temperatures during April were 1.10 degrees Celsius, or 1.98 degrees Fahrenheit, above the 20th century average, which was the most unusually mild April on record. Surpassing April of 2010 by 0.28 degrees Celsius, or 0.50 degrees Fahrenheit, this was the fourth most unusually mild month of any month out of all 1,636 months on record.



All four of the highest monthly temperature departures from average have occurred in 2015 and 2016. The NOAA data matches the general findings of two other global agencies, NASA and the Japan Meteorological Agency, which also found April to be the warmest such month in their records.

The record warmth in 2015 and 2016 is due to a combination of human-caused global warming combined with an unusually intense El Niño event in the tropical Pacific Ocean. However, climate scientists have said that human-cased global warming likely played a far larger role than the El Niño has, as shown by the fact that this burst of warmth easily outpaced the records set during a similarly strong El Niño in 1997-98.

EDIT

http://mashable.com/2016/05/18/warmest-12-months-april-climate/#IlBBfmndsGqP

[OKIsItJustMe]

1. April marks 12th consecutive month of record warmth for globe

http://www.noaa.gov/april-marks-12th-consecutive-month-record-warmth-globe

[font face=Serif][font size=5]April marks 12th consecutive month of record warmth for globe[/font]

May 18, 2016

[font size=3]The heat goes on — and so do the records.

April 2016 was record warm for the month, rounding out one full year of record-breaking monthly temperatures for the globe. This is the longest such balmy streak in the 137-year record, which dates back to 1880.

For April, the average global temperature was 1.98 degrees F above the 20th-century average of 56.7 degrees F, according to scientists from NOAA’s National Centers for Environmental Information. This temperature departure from average was not only the highest for the month of April in the 1880-2016 record, but also the fourth-highest among all months on record.

The globally averaged sea surface temperature for April was also highest for this month on record and surpassed the same period in 1998 by 0.43 degrees F — the last time a similar strength El Niño occurred. This April we also saw the smallest Northern Hemisphere snow cover extent recorded in 50 years of snow-cover data collection.


Map: April 2016 land and ocean temperature departures from average for the globe (in degrees C).

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