Tuesday, July 20, 2010

2010 Hottest summer temperatures on record

Globe icon.Image via Wikipedia

Well, this will surprise no one except for Sen. James Inhofe, but pretty much every thermometer worth checking shows climbing temperatures, according toNOAA. June was the hottest ever, year-to-date 2010 is the hottest ever, and the three months of April-June were the hottest ever. June’s global average of land and sea was almost 2°F above the 20th century average for the month.
Here’s the full report from Uncle Sam, though calling these results “highlights” might be missing the point:
Global Temperature Highlights – June
The combined global land and ocean average surface temperature for June 2010 was the warmest on record at 61.1°F (16.2°C), which is 1.22°F (0.68°C) above the 20th century average of 59.9°F (15.5°C).
The global June land surface temperature was 1.93°F (1.07°C) above the 20th century average of 55.9 °F (13.3°C) — the warmest on record.
Warmer-than-average conditions dominated the globe, with the most prominent warmth in Peru, the central and eastern contiguous U.S., and eastern and western Asia. Cooler-than-average regions included Scandinavia, southern China and the northwestern contiguous United States.
According to Beijing Climate Center, Inner Mongolia, Heilongjiang and Jilin had their warmest June since national records began in 1951. Meanwhile, Guizhou experienced its coolest June on record.
According to Spain’s meteorological office, the nationwide average temperature was 0.7°F (0.4°C) above normal, Spain’s coolest June since 1997.
The worldwide ocean surface temperature was 0.97°F (0.54°C) above the 20th century average of 61.5°F (16.4°C), which was the fourth warmest June on record. The warmth was most pronounced in the Atlantic Ocean.
Sea surface temperature continued to decrease across the equatorial Pacific Ocean during June 2010, consistent with the end of El Niño. According to NOAA’s Climate Prediction Center, La Niña conditions are likely to develop during the northern hemisphere summer 2010.
April – June 2010 and Year-to-Date
The combined global land and ocean surface temperature for April-June 2010 was 1.26°F (0.70°C) above the 20th century average—the warmest April-June period on record.
For the year-to-date, the global combined land and ocean surface temperature of 57.5°F (14.2°C) was the warmest January-June period. This value is 1.22°F (0.68°C) above the 20th century average.
Polar Sea Ice and Precipitation Highlights
Arctic sea ice covered an average of 4.2 million square miles (10.9 million square kilometers) during June. This is 10.6 percent below the 1979-2000 average extent and the lowest June extent since records began in 1979. This was also the 19th consecutive June with below-average Arctic sea ice extent.
Antarctic sea ice extent in June was above average, 8.3 percent above the 1979-2000 average—resulting in the largest June extent on record.
China had near-average precipitation. Regionally, Guizhou, Fujian and Qinghai had above-average precipitation during June 2010, resulting in the second wettest June since national records began in 1951—according to Beijing Climate Center. Meanwhile, the province of Jiangsu had its driest June on record, while Shanxi had its second driest on record.
According to Australia’s Bureau of Meteorology, the continent had its fourth-driest June on record.
The first six months of 2010 were the driest since 1929 for the United Kingdom, according to the UK Met Office. The average rainfall during January-June 2010 was 14.3 inches (362.5 mm), just 3.4 inches (86.8 mm) above January-June 1929. The January-June long-term average is 20.1 inches (511.7 mm).
Scientists, researchers and leaders in government and industry use NOAA’s monthly reports to help track trends and other changes in the world’s climate. This climate service has a wide range of practical uses, from helping farmers know what and when to plant, to guiding resource managers with critical decisions about water, energy and other vital assets.

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