State of the Climate

The State of the Climate is a collection of monthly summaries recapping climate-related occurrences on both a global and national scale.

  • Global
  • Global Analysis — a summary of global temperatures and precipitation, placing the data into a historical perspective
  • Regional Analysis — a summary of global regional temperature anomalies, placing the data into a historical perspective
  • Global Hazards — weather-related hazards and disasters around the world
  • Global Snow and Ice — a global view of snow and ice, placing the data into a historical perspective
  • Upper Air — tropospheric and stratospheric temperatures, with data placed into historical perspective
  • El Niño/Southern Oscillation — atmospheric and oceanic conditions related to ENSO

Global Summary Information - July 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.


July 2015 was warmest month ever recorded for the globe.

Global oceans record warm for July; January-July 2015 also record warm

Global highlights: July 2015


    July Blended Land and Sea Surface Temperature Percentiles

    July 2015 Blended Land and Sea Surface
    Temperature Percentiles
    July 2015 Blended Land & Sea Surface Temperature Anomalies in °C
  • The July average temperature across global land and ocean surfaces was 1.46°F (0.81°C) above the 20th century average. As July is climatologically the warmest month for the year, this was also the all-time highest monthly temperature in the 1880–2015 record, at 61.86°F (16.61°C), surpassing the previous record set in 1998 by 0.14°F (0.08°C).
  • Separately, the July globally-averaged land surface temperature was 1.73°F (0.96°C) above the 20th century average. This was the sixth highest for July in the 1880–2015 record.
  • The July globally-averaged sea surface temperature was 1.35°F (0.75°C) above the 20th century average. This was the highest temperature for any month in the 1880–2015 record, surpassing the previous record set in July 2014 by 0.13°F (0.07°C). The global value was driven by record warmth across large expanses of the Pacific and Indian Oceans.
  • The average Arctic sea ice extent for July was 350,000 square miles (9.5 percent) below the 1981–2010 average. This was the eighth smallest July extent since records began in 1979 and largest since 2009, according to analysis by the National Snow and Ice Data Center using data from NOAA and NASA.
  • Antarctic sea ice during July was 240,000 square miles (3.8 percent) above the 1981–2010 average. This was the fourth largest July Antarctic sea ice extent on record and 140,000 square miles smaller than the record-large July extent of 2014.

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

  • The year-to-date temperature combined across global land and ocean surfaces was 1.53°F (0.85°C) above the 20th century average. This was the highest for January–July in the 1880–2015 record, surpassing the previous record set in 2010 by 0.16°F (0.09°C).
  • The year-to-date globally-averaged land surface temperature was 2.41°F (1.34°C) above the 20th century average. This was the highest for January–July in the 1880–2015 record, surpassing the previous record of 2007 by 0.27°F (0.15°C).
  • The year-to-date globally-averaged sea surface temperature was 1.21°F (0.67°C) above the 20th century average. This was also the highest for January–July in the 1880–2015 record, surpassing the previous record of 2010 by 0.11°F (0.06°C). Every major ocean basin observed record warmth in some areas.
  • For extended analysis of global temperature and precipitation patterns, please see our full July report.