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Greenland Temperatures 2021

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By Paul Homewood

I mentioned a year ago that the reason for the deficit in ice mass increase during the winter and spring of 2020 was sustained cold and dry weather. (Conversely milder weather tends to bring snow). I also reported how the summer melt began much later than normal.

The Danish Meteorological Institute (DMI) have now published the official Greenland temperature for last year, bearing this out and showing how cold it really was:

Greenland Surface Mass Ice Balance 2019/20

http://polarportal.dk/en/greenland/surface-conditions/

Click to access DMIRep21-04.pdf

0DMIRep21-04Download

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Note that these are temperature anomalies, and not actuals!

The 2020 plots are not easy to see in some cases, as they are so close to the baseline. For instance, the anomaly at Quaqortoq is just 0.2C:

The clear picture all stations, west and east, is that annual temperatures last year, as well as in the last couple of decades, have been no higher than commonly seen in the 1920s to 40s. [The only exception was the unusually year of 2010].

To get a clearer impression of the actual temperatures, we can take a closer look at the SW Greenland Temperature series, a bit like the CET:

The actual temperatures are: 

Note how extremely cold the 1980s and 90s were, in comparison with most of the 20thC. This naturally skews 1981-2010 averages, which DMI use not just for temperatures but also ice mass, not to mention using 1979 as the baseline for sea ice extent.

Also the 10-year average has been dropping since 2010, and is now comparable to the 1930s and 40s. Indeed it now stands at –0.6C. Between 1930 and 1956, the average never went below this (ie cooler), and apart from 1957 it was to be 1976 before the 10-year average went colder again.

This is clear proof that alarmist talk of Greenland meltdowns has no basis in fact.

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June 12, 2021