Reposted from the NoTricksZone
By P Gosselin on 21. September 2021
Late summers have been cooling across far northern Europe…September: Finland braces for one of its coldest this century, mercury drops to -6.4°C
By Kirye
and Pierre
Last month we looked at July mean temperature data from the stations in northern Europe for which the Japan Meteorological Agency (JMA) have enough data and found northern Europe (Norway, Sweden and Finland) had seen no mid summer warming in 20 years.
Now the JMA has the data for the same stations for August. Again the trends show late summer has been cooling, and not warming.
What follows are the trends for Finland since 1996:

Data: JMA
In Finland, all six stations for which the JMA has sufficient data show a slight to notable cooling since 1996. None have shown warming for the month of August.
Sweden
Next we look at Sweden, home of teen climate doomsday alarmist, Greta Thunberg:

Data: JMA
Poor Greta has seen her summers cool.
Norway
Finally we look at the trends at 11 stations in Norway:

Data: JMA
Seven of of 11 stations in Norway have seen cooling. So summers over far northern Europe obviously are not extending further into the fall. Quite the opposite seems to be the trend: fall is encroaching into summer.
And how is September, 2021, shaping up? The following anecdote provides a hint.
September may be “perhaps the coldest of the 21st century”
Earlier today at Twitter Mika Rantanen posted how frost has gripped much of Finland this morning, with temperatures falling to a wintry -6.4°C.
Last night was the coldest one so far during this autumn, with -6.4°C measured in Ylivieska airport.
September 2021 is on its way to perhaps the coldest of the 21st century in Finland. pic.twitter.com/kc3J6ci4CB
— Mika Rantanen (@mikarantane) September 21, 2021
Here in calgary and the canadian prairies in general it’s been the nicest summer in years, sitting outside at 9pm as I type, 18c
A nice change from the last decade or more
Last summer was crap until end of July then was nice for 6 weeks
But I fear we are headed back into drought, it’s that time
Which is of course our fault
/sarc
I would forward this if not for the confusing photo of Mont St. Michel.
NCEP data shows DSR (visible light from the sun) peaking in about 2003 and declining there after.
Look like that the cause.
CO2 meanwhile will warm the minimums, as it is a blanket, so what do winter minimums look like?
It’s just weather. Here in northern England we’ve been enjoying exceptionally warm weather for September.