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Old 02-20-2017, 09:47 AM
 
Location: Foreignorland 58 N, 17 E.
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Quote:
Originally Posted by forgotten username View Post
I remember a -10c low in Lyon on March 1st, 2005, and more snow a few days later. By the end of the month we had several days with highs above 20c. Most interesting March I've ever lived. 2004/2005 was probably my favorite winter.

But yeah, -10c at our tropical 45N, must have meant a really friggin' cold blast up north.
http://data.smhi.se/met/climate/time...ar05.pdf?23416

-25C in Uppsala on March 2, 2005 was pretty impressive.

Averages were cold but 3.4/-7.1 averages at my nearest weather station weren't ultra-extreme. Sometimes it lingers on for a while up here, sometimes it doesn't! It can be above 10C in avg high for March as well
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Old 02-20-2017, 09:59 AM
 
Location: Finland
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As you can see, March 2013 was the coldest "winter" month here.

Funnily, it was also the sunniest March ever.
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Old 02-20-2017, 10:22 AM
 
Location: 64'N Umeå, Sweden - The least bad Dfc
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Quote:
Originally Posted by Ariete View Post
Yes, but you are quite a bit closer to föhn winds.
Hmm, I had no idea föhn winds from such a small mountain range as the Scandes could have such an effect as far away as to Umeå. And Östersund, much closer to the Scandes doesn't have warmer winter records. I'd say Turku's lower maximums in winter could be due to oceans to the west and south where the warmest air comes from, moreso than distance to föhn winds.
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Old 02-20-2017, 10:25 AM
 
271 posts, read 141,821 times
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Quote:
Originally Posted by lommaren View Post
http://data.smhi.se/met/climate/time...ar05.pdf?23416

-25C in Uppsala on March 2, 2005 was pretty impressive.

Averages were cold but 3.4/-7.1 averages at my nearest weather station weren't ultra-extreme. Sometimes it lingers on for a while up here, sometimes it doesn't! It can be above 10C in avg high for March as well
uppsala airport had -32.6C the same day that year, which is the lowest temperature ever for that station. one of the very few "off the charts" minimas in sweden during the 2000s.

but they've had more -30C days there then i thought. 5 in total since 1951.

2005-03-02 -32.6C
2010-01-06 -31.5C
1970-02-18 -30.7C
2011-02-24 -30.1C
1989-12-15 -30C
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Old 02-20-2017, 10:38 AM
 
Location: Finland
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Quote:
Originally Posted by Baba_Wethu View Post
Hmm, I had no idea föhn winds from such a small mountain range as the Scandes could have such an effect as far away as to Umeå. And Östersund, much closer to the Scandes doesn't have warmer winter records. I'd say Turku's lower maximums in winter could be due to oceans to the west and south where the warmest air comes from, moreso than distance to föhn winds.
The Scandinavian mountains have a BIGLY effect when the setting is right. The föhn winds have a clear effect even further east here. We hit 7.2C just days ago and places far more north recorded higher temps. It was 8C in Kittilä, Lapland.

Also in the last years we have had some very cold Januarys, so there has not been many opportunities for the Artukainen station to reach high records.
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Old 02-20-2017, 11:54 AM
 
Location: Trondheim, Norway - 63 N
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Quote:
Originally Posted by mellanmjolk View Post
uppsala airport had -32.6C the same day that year, which is the lowest temperature ever for that station. one of the very few "off the charts" minimas in sweden during the 2000s.

but they've had more -30C days there then i thought. 5 in total since 1951.

2005-03-02 -32.6C
2010-01-06 -31.5C
1970-02-18 -30.7C
2011-02-24 -30.1C
1989-12-15 -30C
Trondheim Airport also had a fairly cold March in 2005, mean -0.7C and record low -19.5C.
But March 2006 was the really cold March here - the cold lasted much longer so the mean was much colder even if the record low was very similar.
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Old 02-20-2017, 12:19 PM
 
Location: Foreignorland 58 N, 17 E.
5,600 posts, read 2,588,430 times
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Quote:
Originally Posted by Baba_Wethu View Post
Hmm, I had no idea föhn winds from such a small mountain range as the Scandes could have such an effect as far away as to Umeå. And Östersund, much closer to the Scandes doesn't have warmer winter records. I'd say Turku's lower maximums in winter could be due to oceans to the west and south where the warmest air comes from, moreso than distance to föhn winds.
I think 8C in Umeå is explained by the south-westerly flow and the relatively short distance between Trondheim and Umeå, with also the sea to the east providing some warming influence, hence if the Bothnia Bay didn't exist that entire region would be a freezehole in winter and regularly hitting 30C in summer
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Old 02-20-2017, 12:41 PM
 
Location: Yorkshire, England
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Quote:
Originally Posted by Jakobsli View Post
Trondheim Airport also had a fairly cold March in 2005, mean -0.7C and record low -19.5C.
But March 2006 was the really cold March here - the cold lasted much longer so the mean was much colder even if the record low was very similar.
I took this picture on the train from Stavanger to Oslo on 28 March 2006. Those snowbanks are definitely much bigger than anything I've ever seen in this country at any time of year, plus that place is only 141 metres above sea level and about 20 km from the south coast, no further north than parts of Scotland. Impressed!

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Old 02-20-2017, 01:31 PM
 
1,585 posts, read 930,075 times
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There are probably climate cycles scientists are still unware of to this day. The oceans (70% of our planet) play a major role in climate change.
With all the garbage, illegal fishing, deep sea oil drilling and spills, missle testing, and other unknowns, these climate cycles may be thrown out. Cycles are only predictable when a large majority of factors are constant. Worldwide population sure isn't constant, it is growing at an alarming rate, while sea life is decreasing.
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Old 02-20-2017, 01:36 PM
B87
 
Location: Surrey/London
11,774 posts, read 8,608,000 times
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I just worked out the sunshine stats for Heathrow between 1990-2016. Totals are about 20 hrs below the 81-10 average, due to the awful summers since 2007 (in this time period we have seen the 3 cloudiest Junes and the 2 cloudiest Augusts on record).

Jan: 59.7 hrs (-1.8)
Feb: 75.9 hrs (-2.0)
Mar: 121.8 hrs (+7.2)
Apr: 171.0 hrs (+2.3)
May: 196.3 hrs (-2.2)
Jun: 194.4 hrs (-9.9)
Jul: 208.5 hrs (-3.5)
Aug: 196.4 hrs (-8.3)
Sep: 149.0 hrs (-0.3)
Oct: 114.5 hrs (-2.0)
Nov: 69.7 hrs (-2.9)
Dec: 54.3 hrs (+2.3)
Year: 1611.5 hrs (-21.1)

Surely we will have a run of sunny summers at some point? We've had well below average sun now for 10 years.
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