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Post by Marcelo on Jan 17, 2021 14:31:41 GMT -5
The last days we were talking about “National Ice Days” after Kronan enunciated how Sweden barely failed to make it recently due to very mild weather conditions in the north of the country. A “National Ice Days” is a day in which the temperature stayed below freezing everywhere in a country, and then we started looking for countries where National Ice Days have occurred (at least since records began).
I thought of different categories in which every country may fall in respect to recording ice days in part or in the total area: 1) Countries where National Ice Days occur every year 2) Countries where National Ice Days have occurred at least once since 1900 3) Countries where every place has recorded at least one ice day, but it never happened simultaneously across all their territory 4) Countries where Ice Days have been recorded on coastal areas (but not in every place of their territory) 5) Countries where Ice Days have been recorded in non-coastal permanently inhabited areas (and not in every place of their territory) 6) Countries where Ice Days could only happen in uninhabited high altitude areas 7) Countries where Ice Days never happened anywhere 1 and 2 are the original points of the discussion. Mongolia has to be the quintessential "1" and Romania may be an example of "2". Not sure if a country in "3" exists, Canada maybe? The USA would be an example of "4", India would fall in "5" and Indonesia in "6". A lot of low altitude countries at low latitudes will fall in (7). |
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Post by Deleted on Jan 17, 2021 15:10:20 GMT -5
The UK would be class 4 due to Bishop Rock in the Scilly Isles having never been below 0c.
Ignoring the fact that it's a rock with a lighthouse on it, the UK would be class 3 as St Mary's Heliport, Scilly has seen 3 ice days in recorded history (all in Jan 1987).
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Post by Donar on Jan 17, 2021 15:29:38 GMT -5
Germany would be class 2. The latest national ice day I could find was on Feb. 12 2012. Fucken Heligoland is oftentimes the party pooper 
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Post by Steelernation on Jan 17, 2021 19:24:00 GMT -5
I’m pretty sure Colorado is class 2. Every place in the state gets at least ~10 ice days a year but I’m not sure if places like Grand Junction get ice days overlapping with places like La Junta every year.
I’d guess most but not all years would get a state ice day.
For the US, I think Florida, Arizona, and California are the only places where it’s impossible and would be class 4. Hawaii would be class 6.
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Post by Donar on Jan 18, 2021 4:56:04 GMT -5
Which countries would be class 1 besides Mongolia? I think candidates would be Iceland, Finland, Belarus, Kazakhstan, North Korea, maybe Andorra, Liechtenstein, Baltic countries, Moldova, Armenia?
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Post by AJ1013 on Jan 18, 2021 10:00:10 GMT -5
@b87 Bishop Rock has a weather station on it!?
Where in the UK was above freezing those days in 1987 that the scillies had ice days?
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Post by Deleted on Jan 18, 2021 10:04:37 GMT -5
@b87 Bishop Rock has a weather station on it!? Where in the UK was above freezing those days in 1987 that the scillies had ice days? Isle of Lewis had a high of 0.1c on 12 Jan 1987, while Scilly was at -0.1c.
The Mumbles had a high of 3.7c on 13 Jan 1987, while Scilly was at -1.6c.
Stornoway had a high of 2.9c on 14 Jan 1987, while Scilly was at -0.1c.
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Post by aabc123 on Jan 18, 2021 10:07:01 GMT -5
Which countries would be class 1 besides Mongolia? I think candidates would be Iceland, Finland, Belarus, Kazakhstan, North Korea, maybe Andorra, Liechtenstein, Baltic countries, Moldova, Armenia? E.g. in 2020 there were no 'national ice days' in this country. By the way the total length of the coast is here more than 1,200 kilometers, with the islands even more 3,700 kilometers. If one of the Baltic countries could fall into class 1, it could be probably Lithuania which has a short coastline. |
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Post by Marcelo on Jan 18, 2021 11:16:04 GMT -5
Countries which belong in either class 1 or 2 would be:
Europe: Finland, Sweden, Norway, Denmark, Iceland, Estonia, Latvia, Lithuania, Belarus, Ukraine, Moldova, Romania, Poland, Slovakia, Czech Republic, Hungary, Slovenia, Serbia, North Macedonia, Germany, Austria, Luxembourg, Liechtenstein, Andorra, San Marino, Vatican City.
Asia: Mongolia, North Korea, Kazakhstan, Uzbekistan, Kyrgyzstan
Pendent to check Armenia and Tajikistan (both likely), and Turkmenistan (not so likely). In case of South Korea, it depends on whether Jeju or every minor island around have got ice days. In Europe, I guess Netherlands, Belgium and Switzerland are also likely, but not sure if simultaneously (if class 2 or 3), considering they all have some relatively marginal locations for subfreezing days. In case of Bosnia-Herzegovina, it’s up to its micro coastal area where the town of Neum is located.
I don't know about the status of Canada and Russia, if class 2 or 3, assuming that both Sochi and the most maritime locations in the southwest of the BC have indeed recorded ice days.
PS: I just checked that British rock and it’s damn diminutive; no idea if there is even enough room for proper stations or how long the weather records are. I’m tempted to say that the UK is just an honorary class 3. |
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Post by Ariete on Jan 18, 2021 11:35:13 GMT -5
Which countries would be class 1 besides Mongolia? I think candidates would be Iceland, Finland, Belarus, Kazakhstan, North Korea, maybe Andorra, Liechtenstein, Baltic countries, Moldova, Armenia?
A national ice day happens probably during majority of years, but not every year. 2019, 2017, 2015, 2008 were years it likely didn't happen, but during the 2010-2014 period it probably happened every year. Same with 2005-2007.
I don't really have any way to quickly look this up, but I would estimate it happens above 50% of years, but certainly not 100%.
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Post by AJ1013 on Jan 18, 2021 11:43:50 GMT -5
@b87 Bishop Rock has a weather station on it!? Where in the UK was above freezing those days in 1987 that the scillies had ice days? Isle of Lewis had a high of 0.1c on 12 Jan 1987, while Scilly was at -0.1c.
The Mumbles had a high of 3.7c on 13 Jan 1987, while Scilly was at -1.6c. Stornoway had a high of 2.9c on 14 Jan 1987, while Scilly was at -0.1c.
Alright so a national ice day is certainly possible in the UK |
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Post by Deleted on Jan 18, 2021 11:44:59 GMT -5
Isle of Lewis had a high of 0.1c on 12 Jan 1987, while Scilly was at -0.1c.
The Mumbles had a high of 3.7c on 13 Jan 1987, while Scilly was at -1.6c. Stornoway had a high of 2.9c on 14 Jan 1987, while Scilly was at -0.1c.
Alright so a national ice day is certainly possible in the UK It could happen, in the same way that 40c could happen. |
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Post by AJ1013 on Jan 18, 2021 11:45:51 GMT -5
Alright so a national ice day is certainly possible in the UK It could happen, in the same way that 40c could happen. 0.1C is closer to 0.0C than the current record is to 40C. But both are theoretically possible I agree. |
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Post by deneb78 on Jan 18, 2021 12:10:05 GMT -5
I think Canada would fall in class 2 or 3. Even the most moderated towns like Tofino and Ucluelet have recorded ice days multiple times.
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Post by dunnowhattoputhere on Jan 18, 2021 12:43:00 GMT -5
It could happen, in the same way that 40c could happen. 0.1C is closer to 0.0C than the current record is to 40C. But both are theoretically possible I agree. I’d argue 40C is far more likely than a national ice day in the current climate though. |
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Post by srfoskey on Jan 18, 2021 16:49:42 GMT -5
I’m pretty sure Colorado is class 2. Every place in the state gets at least ~10 ice days a year but I’m not sure if places like Grand Junction get ice days overlapping with places like La Junta every year. I’d guess most but not all years would get a state ice day. For the US, I think Florida, Arizona, and California are the only places where it’s impossible and would be class 4. Hawaii would be class 6. Arizona would technically be class 5 because it has no coastal areas. Unless the OP just meant areas below a specific elevation.
Oklahoma is definitely a class 2, and North Carolina would be, too.
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Post by jgtheone on Jan 18, 2021 20:11:13 GMT -5
Not sure if Australia would be class 5 or 6. I believe there are small permanent residences at all the ski resorts.
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Post by Steelernation on Jan 19, 2021 1:33:17 GMT -5
Cañón City, the mildest place in the state, has had winters with no ice days so Colorado is definitely class 2.
Would be interesting to make a distinction between places that record national days in many, but not all, years and places where it’s happened only a few times ever.
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Post by kronan on Jan 19, 2021 10:43:02 GMT -5
Number of national ice days per year in Sweden. Does not happen every year, but quite frequently.  |
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Post by tij on Jan 7, 2022 5:16:23 GMT -5
Minnesota is obviously class 1-- RI is milder, but since it's pretty small and far enough north, is probably class 1 too. I don't think Block Island is mild enough with 38.5f jan highs to avoid ice days, and any such setup would almost certainly have the mainland have ice days as well.
Unfortunately Block Island is missing too much data for me to tell.
Would NY still be Class 1? I'm guessing Maryland/Delaware would be far south enough to potentially avoid ice days, Virginia almost certainly is.
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