March 16, 2020

Cool conditions in Alaska and northern Canada related to a strong polar vortex were not enough to outweigh the extreme warmth across Europe and Asia in February 2020. Both the Northern Hemisphere and the globe as a whole had their second-warmest February on record.  

January 7, 2015

(animation) The Lower 48 United States was 0.5°F above average in 2014, making it the 34th warmest year in the historical record (1895-2014).  It was the 18th year in a row with above-average temperature.

MJO impacts on 2017-18 winter
February 22, 2018

How this winter's temperature swings may have been partially driven by the Madden Julian Oscillation or MJO.