National Snow and Ice - May 2008
NCEI added Alaska climate divisions to its nClimDiv dataset on Friday, March 6, 2015, coincident with the release of the February 2015 monthly monitoring report. For more information on this data, please visit the Alaska Climate Divisions FAQ.
May, as expected, brought warm temperatures to North America, melting most of the remaining snow cover by the end of the month. The images above display the retreat of snow cover and oceanic ice across northern North America and the Northern Hemisphere. By the end of May, nearly all snow cover in the Rockies had melted, and most lakes in southern Canada were ice-free. Much of James Bay and the Hudson Bay retained their ice cover at the end of the month.
More information on May severe winter weather can also be found on NCDC's Hazards page.