Alaska Climate Research Center

The Alaska State Climate Center
The Alaska State Climate Center
The Alaska State Climate Center
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Our departure maps are updated daily to show the difference between the current temperature and expected temperature, based on 30 years of previously values.

Arctic Sea Ice Extent: March 27, 2025

March 27, 2025: The Arctic sea ice has experienced a decrease for this week at a rate of 2.13% (as opposed to last week’s increase rate of 0.98%), from the level on 03/20/2025 of 14.333 M km2 to 14.028 M km2 for this week.  The sea ice extent right ...
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Arctic sea ice extent during the seasonal maximum. 2025 shown in blue. The grey shading shows the 1981-2020 median and the interquartile range. The colored lines show the years with the ten lowest maximum extents in the satellite record. Source: https://nsidc.org/sea-ice-today/sea-ice-tools/charctic-interactive-sea-ice-graph

Seasonal sea ice maximum: Record low extent

Arctic sea ice has likely reached its seasonal maximum. On March 22, sea ice extent reached 14.33 million square kilometers (5.53 square miles). The ice extent has been trending downwards since, suggesting that we are now in the sea ice melt season (see the corresponding update on the NSIDC “sea ice today” page).  The 2025 seasonal ...
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