Global Climate Report - Annual 2019
Global Temperature Trends, Updated through 2019

« Global Climate Report - Annual 2019


Global Temperature Trends, Updated through 2019

The following maps show the temperature trend for each qualifying grid point since the beginning of the 20th century (top) and the last 30 years (bottom). The temperature trend is the average rate of increase or decrease at the grid point over the time period of interest. It is determined by simple linear regression through the data available for each grid point. They are expressed in degrees Celsius per decade. For the rate in degrees Celsius per century, multiply by 10.

To be eligible for inclusion on the top map, a grid point must have at least two-thirds of possible years available (this works out to at least 78 years). For the bottom map, a higher standard of eligibility - 80% - is enforced. This works out to 24 of the 30 possible years present.


Citing This Report

NOAA National Centers for Environmental Information, State of the Climate: Global Climate Report for 2019, published online January 2020, retrieved on February 29, 2020 from https://www.ncdc.noaa.gov/sotc/global/201913/supplemental/page-3.

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