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Thursday, July 9, 2020

The preliminary new warm temperature record at Verhojansk, Siberia, in context

Prior July 2 article about heat 


The preliminary record 
on June 20 of this year 
was only +0.7C 
higher than the previous 
record set in 1988 for the 
same Siberian town.

Extremely hot summer days 
do happen in Verhojansk, 
with heatwaves in 1988 and 2010. 

Prior to this summer, 
the last really hot day 
was July 2011, when 
temperatures reached 
34.1C.

The warmest summer 
at Verhojansk was 1917 ! 

The summers of 2010 
and 2011 were also unusually 
hot, but since then summers 
have been no hotter than 
some in the early 20th
century.

The claimed 
new record of 38C 
on June 20th, 2020 
has not been verified yet, 
and has actually been 
removed from the 
official GHCN database.



Looking at the entire
Arctic, this new “record” 
replaces the previous
one in Alaska of 37.8C, 
which was set in 1915 !

An increase of 0.2C 
in more than a century 
is not an apocalypse.

Temperatures across 
the Arctic were broadly 
as high in the 1930s and 
1940s as they are now. 

Temperatures plunged 
in the 1960s and 70s, 
when Arctic sea ice 
expanded massively:

This cycle 
is linked to the 
Atlantic 
Multidecadal 
Oscillation 
(AMO). 

The data
clearly show 
the warming part 
of the cycle, 
which began 
around 1990, 
has now 
leveled off. 

The Arctic is likely to get
colder when the AMO
turns negative again.