June, April to June, and year-to-date global temperatures are warmest on record

NOAA: Last month’s combined global land and ocean surface temperature made it the warmest June on record and the warmest on record averaged for any April-June and January-June periods, according to NOAA. Worldwide average land surface temperature was the warmest on record for June and the April-June period, and the second warmest on record for the year-to-date (January-June) period, behind 2007.

The monthly analysis from NOAA’s National Climatic Data Center, which is based on records going back to 1880, is part of the suite of climate services NOAA provides government, business and community leaders so they can make informed decisions. [Some highlights:]

• 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.