Thursday, June 17, 2010

Record High Global Temperatures

http://www.ncdc.noaa.gov/sotc/?report=global&year=2010&month=5&submitted=Get+Report

# The combined global land and ocean average surface temperature for May 2010 was 0.69°C (1.24°F) above the 20th century average of 14.8°C (58.6°F). This is the warmest such value on record since 1880.

# For March–May 2010, the combined global land and ocean surface temperature was 14.4°C (58.0°F) — the warmest March-May on record. This value is 0.73°C (1.31°F) above the 20th century average.

# The combined global land and ocean average surface temperature for January–May 2010 was the warmest on record. The year-to-date period was 0.68°C (1.22°F) warmer than the 20th century average.

# The worldwide ocean surface temperature for May 2010 was the second warmest May on record, behind 1998, 0.55°C (0.99°F) above the 20th century average of 16.3°C (61.3°F).

# The seasonal (March–May 2010) worldwide ocean surface temperature was the second warmest such period on record, 0.55°C (0.99°F) above the 20th century average of 16.1°C (61.0°F).

# The global land surface temperatures for May and the March–May period were the warmest on record, at 1.04°C (1.87°F) and 1.22°C (2.20°F) above the 20th century average, respectively.

# In the Northern Hemisphere, both the May 2010 average temperature for land areas, and the hemisphere as a whole (land and ocean surface combined), represented the warmest May on record. The Northern Hemisphere ocean temperature was the second warmest May on record. The average combined land and ocean surface temperature for the Northern Hemisphere was also record warmest for the March–May period.

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May 2010: warmest on record

The globe recorded its warmest May since record keeping began in 1880, according to the National Oceanic and Atmospheric Administration's (NOAA's) National Climatic Data Center (NCDC). The May temperature anomaly of 0.69°C (1.24°F) beat the previous record set in 1998 by 0.06°C. We've now had three consecutive warmest months on record, the first time that has happened since 1998. NASA's Goddard Institute for Space Studies also rated May 2010 as the warmest May on record, tied with May 1998. Both NOAA and NASA rated the year-to-date period, January - May, as the warmest such period on record, and the last 12-month period (June 2009 - May 2010) as the warmest 12-month period on record. May 2010 global ocean temperatures were the second warmest on record, while land temperatures were the warmest on record. Global satellite-measured temperatures for the lowest 8 km of the atmosphere were the 2nd warmest on record in May, according to both the University of Alabama Huntsville (UAH) and Remote Sensing Systems (RSS) groups.
For those interested, NCDC has a page of notable weather highlights from May 2010.

Asia and Southeast Asia record their hottest temperatures in history

The mercury hit an astonishing 53.5°C (128.3°F) at MohenjuDaro, Pakistan, on May 26. Not only is the 128.3°F reading the hottest temperature ever recorded in Pakistan, it is the hottest reliably measured temperature ever recorded on the continent of Asia. The evidence for this record is detailed in a post I made earlier this month. The Pakistan heat wave killed at least 18 Pakistanis, and temperatures in excess of 50°C (122°F) were recorded at nine Pakistani cities on May 26, including 53°C (127.4°F) at Sibi. Record heat also hit Southeast Asia in May. According to the Myanmar Department of Meteorology and Hydrology, Myanmar (Burma) had its hottest temperature in its recorded history on May 12, when the mercury hit 47°C (116.6°F) in Myinmu. Myanmar's previous hottest temperature was 45.8°C (114.4°F) at Minbu, Magwe division on May 9, 1998. According to Chris Burt, author of Extreme Weather, the 47°C (116.6°F) measured on May 12 this year is the hottest temperature measured in Southeast Asia in recorded history.

An average May for the U.S.

For the contiguous U.S., it was the 50th coldest (66th warmest) May in the 116-year record, according to the National Climatic Data Center.

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