Record minimums or maximums are updated annually. Therefore, a newly-set record may not be reflected in the chart until after the annual update.
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.
When reusing Charctic images or data, please credit “National Snow and Ice Data Center.”
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