The graph above shows June daily ice extents for 2024 compared to 18 year averages, and some years of note.

The black line shows on average Arctic ice extents decline from a maximum of 11.6M km2 on day 153 down to 9.7M Km2 by day 182.  2024 started slightly higher, then tracked below the 18-year average, before ending above average.  SII was somewhat higher than MASIE most of June until ending nearly the same. 2007 melted faster than average, while 2020 ice started and ended much in deficit.

Why is this important?  All the claims of global climate emergency depend on dangerously higher temperatures, lower sea ice, and rising sea levels.  The lack of additional warming prior to 2023 El Nino is documented in a post UAH May 2024: NH Cooling by Land and Sea.

The lack of acceleration in sea levels along coastlines has been discussed also.  See Observed vs. Imagined Sea Levels 2023 Update.

Also, a longer term perspective is informative:

The table below shows the distribution of Sea Ice on day 182 across the Arctic Regions, on average, this year and 2007. At this point in the year, Bering and Okhotsk seas are open water and thus dropped from the table.

The overall surplus to average is 167k km2, (2%).  The only major deficit is in Hudson Bay, going to open water next month anyway.  That is more than offset by surpluses everywhere, especially in Chukchi, Kara and Baffin Bay.  Note that 2007 had almost half a Wadham of less ice extent at June 30. 

Illustration by Eleanor Lutz shows Earth’s seasonal climate changes. If played in full screen, the four corners present views from top, bottom and sides. It is a visual representation of scientific datasets measuring ice and snow extents.

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