2017 Global Temperature Visuals
Earth’s global surface temperatures in 2017 were the second warmest since modern recordkeeping began in 1880, continuing the planet’s long-term warming trend.
Globally averaged temperatures in 2017 were 1.62 degrees Fahrenheit (0.90 degrees Celsius) warmer than the 1951 to 1980 mean. That is second only to global temperatures in 2016. Last year was the third consecutive year in which temperatures were more than 1.8 degrees Fahrenheit (1 degree Celsius) above late nineteenth-century levels.
2017 was the warmest year that did not have an El Niño event.
NASA’s temperature analyses incorporate surface temperature measurements from 6,300 weather stations, ship- and buoy-based observations of sea surface temperatures, and temperature measurements from Antarctic research stations.
These raw measurements are analyzed using an algorithm that considers the varied spacing of temperature stations around the globe and urban heating effects that could skew the conclusions. These calculations produce the global average temperature deviations from the baseline period of 1951 to 1980.
The full 2017 surface temperature data set and the complete methodology used to make the temperature calculation are available at: http://data.giss.nasa.gov/gistemp/
This map shows Earth’s average global temperatures during the entire year of 2017, as compared to a baseline average from 1951 to 1980, according to an analysis by NASA’s Goddard Institute for Space Studies. Yellows, oranges and reds show regions warmer than the baseline. The data are in degrees Fahrenheit.
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Please give credit for this item to:
NASA's Goddard Space Flight Center
- Kate Ramsayer (Telophase)