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Ciencia en EL PAÍS



NOAA - National Oceanic and Atmospheric Administration

Global Summary Information - June 2015

See Full Report

Note: With this report and data release, the National Centers for Environmental Information is transitioning to improved versions of its global land (GHCN-M version 3.3.0) and ocean (ERSST version 4.0.0) datasets. Please note that anomalies and ranks reflect the historical record according to these updated versions. Historical months and years may differ from what was reported in previous reports. For more, please visit the associated FAQ and supplemental information.

June 2015 was warmest June on record for the globe.

Global land areas and oceans each record warm for June.

First half of 2015 also record warm.

Selected Climate Events & Anomalies for June 2015

Global highlights: June 2015

June 2015 Blended Land and Sea Surface 
Temperature Percentiles June 2015 Blended Land & Sea Surface Temperature Anomalies in °C



• During June, the average temperature across global land and ocean surfaces was 1.58°F (0.88°C) above the 20th century average. This was the highest for June in the 1880–2015 record, surpassing the previous record set last year in 2014 by 0.22°F (0.12°C).
• The June globally-averaged land surface temperature was 2.27°F (1.26°C) above the 20th century average. This was the highest for June in the 1880–2015 record, surpassing the previous record set in 2012 by 0.11°F (0.06°C).
• The June globally-averaged sea surface temperature was 1.33°F (0.74°C) above the 20th century average. This was the highest for June in the 1880–2015 record, surpassing the previous record set last year in 2014 by 0.11°F (0.06°C).
• The average Arctic sea ice extent for June was 350,000 square miles (7.7 percent) below the 1981–2010 average and 60,000 square miles larger than the smallest sea ice extent that occurred in 2010. This was the third smallest June extent since records began in 1979, according to analysis by the National Snow and Ice Data Center using data from NOAA and NASA.
• Antarctic sea ice during June was 380,000 square miles (7.2 percent) above the 1981–2010 average. This was the third largest June Antarctic sea ice extent on record and 140,000 square miles smaller than the record-large June extent of 2014.

Global highlights: Year-to-date (January–June 2015)

• During January–June, the average temperature across global land and ocean surfaces was 1.53°F (0.85°C) above the 20th century average. This was the highest for January–June in the 1880–2015 record, surpassing the previous record of 2010 by 0.16°F (0.09°C).
• During January–June, the globally-averaged land surface temperature was 2.52°F (1.40°C) above the 20th century average. This was the highest for January–June in the 1880–2015 record, surpassing the previous record of 2007 by 0.23°F (0.13°C).
• During January–June, the globally-averaged sea surface temperature was 1.17°F (0.65°C) above the 20th century average. This was the highest for January–June in the 1880–2015 record, surpassing the previous record of 2010 by 0.07°F (0.04°C)
For extended analysis of global temperature and precipitation patterns, please see our full June report