As shown in the time series to the right, mean Northern Hemisphere snow cover extent during January 2007 was below average. Much of this was due to anomalously warm conditions across Asia, Europe, Canada, and the northeast half of the U.S. January 2007 snow cover extent on the Northern Hemisphere was the 4th lowest extent on record. Mean Northern Hemisphere January snow cover extent for the 1967-2007 period of record is 46.9 million square kilometers.

Snow cover for January 2007 across North America was above average. This was in part due to a series of snow and ice storms that struck the U.S. during the month of January. Mean North America January snow cover extent is 17.5 million square kilometers for the 1967-2007 period of record.

As depicted in the time series to the right, Eurasia's snow cover extent in January was the 2nd lowest on record behind 1981. Monthly mean temperatures above 5.0°C covered much of Europe and Russia. Average Eurasian January snow cover extent is 29.4 million square kilometers for the 1967-2007 period of record.