Global Temperature

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Additional figures are on More Figures page.


With 1880-1920 Base Period

In this graph the base period is switched from our traditional 1951-1980 to 1880-1920 for the reasons given in "A Better Graph", but of course we continue to also produce our graphs with the 1951-1980 base period, as shown below. Data through September 2020 are used for computing the means. Figures in PDF. last modified 2020/10/14, now with GHCN v4 and ERSST v5.)

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Table


With Our Traditional 1951-1980 Base Period from Here

Below are maps of the mean surface temperature anomaly for the past month, the past three months, and the past 12 months. Regional weather patterns, apparent on the monthly time scale, tend to disappear in averages over longer time scales.

Also in PDF, last modified 2020/11/13, now with GHCN version 4 and ERSST v5.

Also in PDF.
Data through October 2020 are used for computing the means. last modified 2020/11/13, now with GHCN v4 and ERSST v5.)

Comparison of temperature of several years in recent past. Figure also available in PDF (Updated on 2020/11/13, now with GHCN v4 and ERSST v5)

Comparison of El Nino/La Nin phase and the global mean temperature change. Figure also available in PDF (Updated on 2020/11/13, now with GHCN v4 and ERSST v5)


Additional figures are on More Figures page.


Switching to New Versions of Data Sets

GHCN Station Data:

Sea Surface Temperature:

AIRS Temperature Data:

NASA/GISS added Surface Temperature Anomaly estimates from Remote Sensed data (Susskind et al. 2019) to be available from its web site.


Our Essays

Monthly Update E-Mails:

Annual and Decadal Summary:


Original Data

Information in detail with tables and the original data are available on NASA GISS temperature web pages. Here is a summary table from GISS website.