Graph of the Day: Global Temperature Anomalies, June 2010
- The combined global land and ocean average surface temperature for June 2010 was the warmest on record at 16.2°C (61.1°F), which is 0.68°C (1.22°F) above the 20th century average of 15.5°C (59.9°F). The previous record for June was set in 2005.
- June 2010 was the fourth consecutive warmest month on record (March, April, and May 2010 were also the warmest on record). This was the 304th consecutive month with a global temperature above the 20th century average. The last month with below-average temperature was February 1985.
- The June worldwide averaged land surface temperature was 1.07°C (1.93°F) above the 20th century average of 13.3°C (55.9°F)—the warmest on record.
- It was the warmest April–June (three-month period) on record for the global land and ocean temperature and the land-only temperature. The three-month period was the second warmest for the world’s oceans, behind 1998.
- It was the warmest June and April–June on record for the Northern Hemisphere as a whole and all land areas of the Northern Hemisphere.
- It was the warmest January–June on record for the global land and ocean temperature. The worldwide land on average had its second warmest January–June, behind 2007. The worldwide averaged ocean temperature was the second warmest January–June, behind 1998.
- Sea surface temperature (SST) anomalies in the central and eastern equatorial Pacific Ocean continued to decrease during June 2010. According to NOAA’s Climate Prediction Center, La Niña conditions are likely to develop during the Northern Hemisphere summer 2010.
Warmer-than-average conditions dominated the globe during June 2010, with the most prominent warmth in Mexico, northern Africa, and most of Europe, Asia, South America, and the contiguous U.S. Cooler-than-average conditions were present across Scandinavia, southeastern China, and the northwestern contiguous U.S. The world land surface temperature June 2010 anomaly of 1.07°C (1.93°F) was the warmest on record, surpassing the previous June record set in 2005 by 0.12°C (0.22°F). The anomalous warm conditions that affected large portions of each inhabited continent also contributed to the warmest June worldwide land and ocean surface temperature since records began in 1880. The previous June record was set in 2005. Separately, the worldwide ocean surface temperatures during June 2010 were 0.54°C (0.97°F) above the 20th century average—the fourth warmest June on record. Warmer-than-average conditions were present across most of the Atlantic, Indian, and the western Pacific oceans. Meanwhile, cooler-than-average conditions were present across the eastern and equatorial Pacific Ocean, the southern oceans, and a small region in the northwestern Atlantic Ocean. Sea surface temperature (SST) anomalies were below average across the eastern and central equatorial Pacific, as temperatures continued to decrease during June 2010. SST anomalies in the Niño 3.4 region decreased to -0.43°C (-0.77°F), a cooling of 0.34°C (0.61°F) compared to May’s anomaly. According to NOAA’s Climate Prediction Center (CPC), La Niña conditions are likely to develop during the Northern Hemisphere summer 2010 as SSTs continue to decrease across the equatorial Pacific Ocean. …
