Global Warming: Historical Temperatures

It's now official, 2005 was the hottest year on record. The National Oceanic and Atmospheric Administration ( has just updated global temperatures from 1890 to 2005, and 2005 beat out 1998 by a hair. Global-warming skeptics had dismissed 1998 as due to an unusually strong El Niño, but 2005 was not. Moreover, 2005 was the coolest solar year since 1987.

Global Temperatures 1975-2005
Central-England-Temperatures from 1650

Above. This is a plot of average annual temperatures based on measurements made at the time starting in 1659. The temperatures from 1975--2005 have been corrected for urban warming. The dark line is a smoothed version of the annual data.

Below. "In February, 2006 NCDC/NOAA transitioned to the use of an improved Global Land and Ocean data set." These new global temperatures slightly different from those previously posted. They are freely available at oa/climate/research/anomalies/anomalies.html

global temperature 1860-2005