Sea Ice and Snow Cover Extent

Sea ice extent provided by the National Snow and Ice Data Center (NSIDC) is available from 1979–2014 for the Northern Hemisphere, Southern Hemisphere, and Globe. Snow cover extent provided by the Rutgers University Global Snow Laboratory (GSL) is available from 1967–2014 for the North America + Greenland, Northern Hemisphere, Eurasia, and North America. All anomalies are relative to the 1981–2010 average.

Place mouse on axis and left-click to pan; wheel up/down for zoom in/out (or shift key+left-click).

Source: National Snow and Ice Data Center (NSIDC)

Download: xml csv json
Date Extent
million km²
Extent
million mi²
Anomaly
million km²
Anomaly
million mi²
Anomaly
% Difference
1979 27.33 10.55 1.51 0.58 5.85
1980 25.55 9.86 -0.27 -0.11 -1.05
1981 26.49 10.23 0.67 0.26 2.59
1982 26.68 10.30 0.86 0.33 3.33
1983 25.71 9.93 -0.11 -0.04 -0.43
1984 26.14 10.09 0.32 0.12 1.24
1985 26.39 10.19 0.57 0.22 2.21
1986 25.41 9.81 -0.41 -0.16 -1.59
1987 25.88 9.99 0.06 0.02 0.23
1988 25.62 9.89 -0.20 -0.08 -0.77
1989 26.48 10.22 0.66 0.25 2.56
1990 25.43 9.82 -0.39 -0.15 -1.51
1991 25.75 9.94 -0.07 -0.03 -0.27
1992 25.47 9.83 -0.35 -0.14 -1.36
1993 25.60 9.88 -0.22 -0.09 -0.85
1994 26.23 10.13 0.41 0.16 1.59
1995 25.39 9.80 -0.43 -0.17 -1.67
1996 26.48 10.22 0.66 0.25 2.56
1997 25.58 9.88 -0.24 -0.09 -0.93
1998 25.83 9.97 0.01 0.00 0.04
1999 26.32 10.16 0.50 0.19 1.94
2000 26.12 10.08 0.30 0.11 1.16
2001 25.60 9.88 -0.22 -0.09 -0.85
2002 24.63 9.51 -1.19 -0.46 -4.61
2003 26.25 10.14 0.43 0.17 1.67
2004 25.87 9.99 0.05 0.02 0.19
2005 25.23 9.74 -0.59 -0.23 -2.29
2006 25.04 9.67 -0.78 -0.30 -3.02
2007 25.36 9.79 -0.46 -0.18 -1.78
2008 25.88 9.99 0.06 0.02 0.23
2009 25.87 9.99 0.05 0.02 0.19
2010 25.82 9.97 0.00 -0.00 0.00
2011 24.77 9.56 -1.05 -0.41 -4.07
2012 25.12 9.70 -0.70 -0.27 -2.71
2013 26.25 10.14 0.43 0.17 1.67
2014 26.57 10.26 0.75 0.29 2.90