Global Temperature

Additional figures are on More Figures page.

* * * Monthly and Annual Temperature Tables ***
1880-1920 Base Period
1951-1980 Base Period

* * * * * * Annual Mean Temperature Ranking (Top 10) * * * * * *
The top 10 warmest years were all in the past 11 years (2015-2025)
1880-1920 Base Period

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 March 2026 are used for computing the means. Figures in PDF. last modified 2026/04/09, now with GHCN v4 and ERSST v5.)
With Predictions Updated on 2026/04/09
With Current Trend Updated on 2026/04/09

With Our Traditional 1951-1980 Base Period from Here

Also in PDF.
Data through September 2026 are used for computing the means. last modified 2026/10/09, now with GHCN v4 and ERSST v5.)

Comparison of temperature of a few years in recent past. Figure also available in PDF (Updated on 2026/10/09, with GHCN v4 and ERSST v5)

Comparison of El Nino/La Nina phase and the global mean temperature change. Figure also available in PDF Note: RONI data (3-month means) are through the July-August-September mean and the global temperature is monthly mean through September. (Updated on 2026/10/09, with GHCN v4 and ERSST v5)

Comparison of two super El Ninos. We had a super El Nino in 2015-2016. The current one 2026-2027 will be another super El Nino. The global mean temperature for Jul-Aug-Sep before the El Ninos were 0.79C (2015) and 1.35C (2026), more than half a degree warmer than the previous one. Jul-Aug-Sep 2026 was also wrmer than Jan-Feb-Mar 2016, which was the warmest 3month mean after the 2015-16 El Nino. (Updated on 2026/10/09, with GHCN v4 and ERSST v5)

Our Essays

Global Warming Acceleration (2020/12/14)
Accelerated Warming (2020/10/14)
Race is On, and Here Comes... (2020/06/12)
Bending the Curves (2020/04/14)
Global Warming and East Coast Hurricanes (2018/09/17)
A Better Graph (2016/09/26)
Global Temperature Update (2015/08/24)
Global Warming Hole (2015/03/31)
If It's That Warm, How Come It's So Darned Cold? (2010/01/26)

Monthly Update E-Mails:

2024: Feb, Apr, May
2023: May, Jun, Jul, Aug, Sep, Nov, Dec (Annual)
2022: Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Dec (annual)
2021: Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec (annual)
2020: Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec (annual), Annual Figures
2019: Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec (annual)
2018: Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec (annual)
2017: Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec (annual)
2016: Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec (annual)
2015: Feb Mar, Apr, May, Jul, Aug, Sep, Oct, Dec (annual)

Annual and Decadal Summary:

Annual: 2014, 2013, 2012, 2011, 2010
Decadal: 2000-2009
Annual: 2009, 2008, 2007, 2006, 2005, 2004, 2003, 2002, 2001

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.