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Post by Steelernation on Jan 11, 2020 14:51:00 GMT -5
With today in the 60s, and having 60s the last few Februarys I got curious how common it was for a winter to hit 60.
Overall, 89/147 winters hit 60. That’s ~59%.
For 1981-2010, the mean winter record high is 61.8.
23/30 years hit 60 (77%).
Since 2000, the mean winter record high has risen to 62.9 with 17/21 years (81%) hitting 60.
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Post by Babu on Jan 12, 2020 13:48:52 GMT -5
Wow. Somehow, frost on the ground survived this day and a half of mild weather. I didn't see any puddles this afternoon. Normally 2-4'C for 30 hours straight will melt quite a bit of snow, but today not even thin layers of frost managed to melt.
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Post by bizzy on Jan 12, 2020 17:31:56 GMT -5
I’ve obtained 2019 sunshine data for a swath of the NYC area, now I just have to parse through it all to get the final sunshine hour totals, it’ll take me a while.
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Post by Babu on Jan 13, 2020 13:33:34 GMT -5
Most of Norway, Sweden and Finland are looking at November being the coldest month so far, followed by December and lastly followed by January. Since November, each month has been warmer than the last, not just in relative terms but in absolute terms. December was 2'C warmer than November in Umeå, and right now, January is 3'C warmer than December was.
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Post by Nidaros on Jan 18, 2020 14:12:14 GMT -5
Between 3 and 4 last night Tafjord record up to 10.1°C. The same hour, Karasjok recorded -31.7°C. Range within Norway (excluding Svalbard) at that hour: 41.8°C. No record, but still...!
What range can the UK get? Excluding overseas territories.
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Post by boombo on Jan 18, 2020 17:35:56 GMT -5
Between 3 and 4 last night Tafjord record up to 10.1°C. The same hour, Karasjok recorded -31.7°C. Range within Norway (excluding Svalbard) at that hour: 41.8°C. No record, but still...!
What range can the UK get? Excluding overseas territories.
I'm guessing our biggest range would have been recorded on the day Altnaharra in northern Scotland broke the national cold record in 1995. Altnaharra's low that day was -27.2C and St. Mary in the Isles of Scilly (mildest winter averages in the country) had a pretty mild low of +7.7C, so 34.9C. Apart from Russia I'd imagine Norway has the biggest possible range in Europe? Certainly if you don't include mountains at least.
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Post by Nidaros on Jan 19, 2020 7:26:39 GMT -5
I'm guessing our biggest range would have been recorded on the day Altnaharra in northern Scotland broke the national cold record in 1995. Altnaharra's low that day was -27.2C and St. Mary in the Isles of Scilly (mildest winter averages in the country) had a pretty mild low of +7.7C, so 34.9C. Apart from Russia I'd imagine Norway has the biggest possible range in Europe? Certainly if you don't include mountains at least. Even within just one region of Norway we can have a larger temperature range than ever recorded in the UK!
The huge temperature gradient between lowland areas of Scandinavia is hard to match other places in Europe (mountains exluded).
Northern Norway today: Between 08:00-09:00 AM this sunday morning, Pasvik recorded a low of -36.1°C. In the same hour, Brønnøysund recorded 6.1°C.
That gives a range of 42.2°C within one region of Norway in the same hour.
The national record should be more than 50°C range.
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Post by Babu on Jan 19, 2020 8:27:52 GMT -5
I'm guessing our biggest range would have been recorded on the day Altnaharra in northern Scotland broke the national cold record in 1995. Altnaharra's low that day was -27.2C and St. Mary in the Isles of Scilly (mildest winter averages in the country) had a pretty mild low of +7.7C, so 34.9C. Apart from Russia I'd imagine Norway has the biggest possible range in Europe? Certainly if you don't include mountains at least. Even within just one region of Norway we can have a larger temperature range than ever recorded in the UK!
The huge temperature gradient between lowland areas of Scandinavia is hard to match other places in Europe (mountains exluded).
Northern Norway today: Between 08:00-09:00 AM this sunday morning, Pasvik recorded a low of -36.1°C. In the same hour, Brønnøysund recorded 6.1°C.
That gives a range of 42.2°C within one region of Norway in the same hour.
The national record should be more than 50°C range.
SMHI recently released a blog post about large temperature differences: www.smhi.se/bloggar/vaderleken-2-3336/de-storsta-temperaturskillnaderna-i-sverige-1.155347The largest national difference between a maximum and minimum temperature is 55.8'C when Vuoggatjolme recorded the national (and Nordic?) record low of -52.6'C while Malmö had a high of 3.2'C (unclear what the temperature was at the exact point when the record low was recorded though). This was on the 2nd of February 1966. The smallest difference ever recorded was 10.1'C when Ven in southern Sweden had a high of 8.5'C and Karesuando in the north had a low of -1.6'C on November 21st 1970. The largest diurnal is 37.8'C shared by Byheden and Nikkaluokta at 2.2/-35.6 and 1.9/-36.8 respectively, on the 10th of December and 20th of January, 1973 and 1997.
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Post by Ariete on Jan 19, 2020 10:21:23 GMT -5
Alder blooming 2 months early in SW Finland.
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Post by lab276 on Jan 19, 2020 22:59:43 GMT -5
Sydney the gloomiest city so far in January, through to the 19th:
Sydney 74h, 3.9 average per day Melbourne 144.9h, 7.6 Brisbane 155.3h, 8.2 Perth 233.9h, 12.3 Adelaide 195.4h, 10.3 Hobart 159.1h, 8.4 Darwin 100.5h, 5.3
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Post by Nidaros on Jan 20, 2020 13:32:13 GMT -5
13.6°C recorded in Trondheim today, at Ranheim (13.1°C at Lade). 14°C in Rissa (N of Trondheim) in the Trondheim province (Trøndelag), new January all-time high for the province, old record 13.8°C from 1971.
Sunndalsøra recorded 18.5°C, also very warm other places such as Åndalsnes (16.4°C)
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Post by Babu on Jan 20, 2020 14:42:08 GMT -5
Norderön in Östersund reached 11.3'C and a nearby station operated by the traffic agency recorded 11.7'C.
Umeå reached only 5.8'C. SMHI and YR forecast 7-8'C. WO forecast 12'C 😂😂😂
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Post by Crunch41 on Jan 21, 2020 0:03:08 GMT -5
The largest diurnal is 37.8'C shared by Byheden and Nikkaluokta at 2.2/-35.6 and 1.9/36.8 respectively, on the 10th of December and 20th of January, 1973 and 1997. I know you just made a simple typo, but imagine a 36.8/1.9 day. (98/35F). Were those days extreme cold turning to mild weather, or the other way around? I think it would be easier to warm up from a very cold morning than the reverse.
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Post by AJ1013 on Jan 21, 2020 0:06:13 GMT -5
The largest diurnal is 37.8'C shared by Byheden and Nikkaluokta at 2.2/-35.6 and 1.9/36.8 respectively, on the 10th of December and 20th of January, 1973 and 1997. I know you just made a simple typo, but imagine a 36.8/1.9 day. (98/35F). Were those days extreme cold turning to mild weather, or the other way around? I think it would be easier to warm up from a very cold morning than the reverse. There are days with diurnals like that thag happen in certain places. It’s not an airmass change type of thing, it’s high pressure with radiational cooling. Check this place in California out en.m.wikipedia.org/wiki/Pinnacles_National_Park
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Post by Babu on Jan 21, 2020 6:13:10 GMT -5
The largest diurnal is 37.8'C shared by Byheden and Nikkaluokta at 2.2/-35.6 and 1.9/36.8 respectively, on the 10th of December and 20th of January, 1973 and 1997. I know you just made a simple typo, but imagine a 36.8/1.9 day. (98/35F). Were those days extreme cold turning to mild weather, or the other way around? I think it would be easier to warm up from a very cold morning than the reverse.
Definitely warming up
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Post by Crunch41 on Jan 21, 2020 23:40:20 GMT -5
I know you just made a simple typo, but imagine a 36.8/1.9 day. (98/35F). Were those days extreme cold turning to mild weather, or the other way around? I think it would be easier to warm up from a very cold morning than the reverse. There are days with diurnals like that thag happen in certain places. It’s not an airmass change type of thing, it’s high pressure with radiational cooling. Check this place in California out en.m.wikipedia.org/wiki/Pinnacles_National_ParkI have heard of that place. I can't imagine diurnals like that every day. A 50 degree swing in a day is rare here and always comes with a warm or cold front.
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Post by Babu on Jan 26, 2020 6:27:29 GMT -5
Ugh. There'll be no above freezing January this year in Umeå. Yesterday the average mean dropped below freezing at -0.0'C and the forecast for the rest of January seems to be about -2'C almost every day.
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Post by Nidaros on Jan 26, 2020 14:20:13 GMT -5
Another day with huge temperature range in Norway.
@ 18:00-19:00 tonight: -33.8*C in Kautokeino 9.9*C Ålesund (not sure Ålesund is warmest) = 43.7*C range
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Post by shalop on Jan 26, 2020 15:03:41 GMT -5
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Post by Crunch41 on Jan 27, 2020 16:20:14 GMT -5
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