Charctic Interactive Sea Ice Graph

  • View additional years by clicking the dates in the legend.
  • Roll your cursor over the line to see daily sea ice extent values.
  • Zoom in to any area on the chart by clicking and dragging your mouse.
  • To see a corresponding daily sea ice concentration image, click on a line in the chart. Sea ice extent is derived from sea ice concentration. Images are not available for the average or standard deviation.
  • Data are from the Sea Ice Index.
  • Graphs shown here may vary slightly from graphs displayed in Arctic Sea Ice News & Analysis, due to differences in handling leap years. However, the underlying data values are the same.
  • Currently, some functions do not work in Internet Explorer. We recommend using a different browser.
  • This interactive graph is a beta version. If you have questions or problems, please contact NSIDC User Services at
  • Note, 11 March 2015: NSIDC has made two revisions to the Sea Ice Index extent values used in our analyses, to improve scientific accuracy. These changes do not affect sea ice trends and year-to-year comparisons, but in some instances you may notice very small changes in values from the previous version of the data. See the Sea Ice Index documentation for more information.