Global Temperature

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Additional figures are on More Figures page.


With 1880-1920 Base Period

In recent years

In these graphs 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. Figures also in 1880-2019 and 1990-2019. Data through October 2019 are used for computing the means. last modified 2019/11/15, now with GHCN v4 and ERSST v5.)

* * * Data Comparison * * *
1880-1920 base,
1951-1980 base.


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. In the chart in the lower right we show the 2014-2019 global land-ocean temperature anomalies.

Also in PDF, last modified 2019/11/15, now with GHCN version 4 and ERSST v5.

(a) Our traditional graph of the annual and 5-year running means of the global temperature, and (b) 12-month and 132-month (to minimize the effect of the 11-year solar cycle) running means on the right. Also in PDF.
Data through October 2019 are used for computing the means. last modified 2019/11/15, now with GHCN v4 and ERSST v5.)


Additional figures are on More Figures page.
Information in detail with tables and the original data sources are on NASA GISS temperature web pages.

Switching to New Versions of Data Sets

GHCN Station Data:

Sea Surface Temperature:

For more details, please see GISS Updates page.

Our Essays:

Monthly Update E-Mails:



Information in detail with tables and the original data sources are on NASA GISS temperature web pages.