|
|
Post by Ariete on Apr 16, 2018 9:12:23 GMT -5
Helsinki,
Coldest month: February 1871 (mean -18.4C)
Coldest two weeks: 2-15 January 1987 (mean -24.5C)
Coldest week: 6-12 January 1987 (mean -29.0C)
I guess 1987 is "recent"... 1871 is not, but change that with 1987 then, which is the second coldest month on record.
If really more recent, the coldest week recorded at Turku Artukainen (since Feb 2003) is 13-19 February 2011, with a mean of -17.8C. Including also the tied record low ever recorded at -25.4C.
|
|
|
|
Post by Steelernation on Sept 12, 2020 19:00:45 GMT -5
Coldest week:
-10.3 f (-23.5 c) from February 1-7, 1899
Coldest 2 weeks:
-3.5 f (-19.7 c) from January 30-February 12, 1899
Coldest 30 days:
8.4 f (-13.1 c) from January 3-February 1, 1930
Daily temps for the coldest week ever:
2/1: High 2 Low -7
2/2: High -5 Low -16
2/3: High 1 Low -18
2/4: High 17 Low -31
2/5: High 7 Low -31
2/6: High 3 Low -38
2/7: High 4 Low -32
In C that’s:
-17/-22
-21/-27
-17/-28
-8/-35
-14/-35
-16/-39
-16/-36
|
|
|
|
Post by nei on Feb 12, 2021 17:55:40 GMT -5
It'd be interesting to compare LGA and Central Park to see if one had more of a trend. My guess is no, NYC was still all concrete in 1940; it's not like cities are a recent thing. Giro uses LGA because it's closer to this house and it reflects temperatures he experiences at home. Ah, I forgot where exactly in NYC he lives, I'd also like to see a trend analysis for both stations...I still think LGA would both (obviously be a lot warmer) and also have more of a trend. I should check; I assumed there wouldn't be any difference in trend between LGA and Central Park. Let's see who's right. Or maybe we discussed this afterwards? can't remember |
|
|
|
Post by AJ1013 on Feb 12, 2021 19:06:56 GMT -5
Ah, I forgot where exactly in NYC he lives, I'd also like to see a trend analysis for both stations...I still think LGA would both (obviously be a lot warmer) and also have more of a trend. I should check; I assumed there wouldn't be any difference in trend between LGA and Central Park. Let's see who's right. Or maybe we discussed this afterwards? can't remember I don’t think we ever figured out the answer to this. |
|
|
|
Post by srfoskey on Feb 14, 2021 18:53:32 GMT -5
For Oklahoma City
Week: 5.6°F/-14.7°C (week ending Dec. 25, 1983)
Two weeks: 11.6°F/-11.3°C (period ending Dec. 30, 1983)
Month: 21.7°F/-5.7°C (month ending Feb. 19, 1905)
|
|
|
|
Post by srfoskey on Feb 18, 2021 18:20:30 GMT -5
For Oklahoma City Week: 5.6°F/-14.7°C (week ending Dec. 25, 1983) Two weeks: 11.6°F/-11.3°C (period ending Dec. 30, 1983) Month: 21.7°F/-5.7°C (month ending Feb. 19, 1905) Ignoring overlap, this past week was the fourth coldest on record. |
|
|
|
Post by nei on Feb 18, 2021 20:01:31 GMT -5
I should check; I assumed there wouldn't be any difference in trend between LGA and Central Park. Let's see who's right. Or maybe we discussed this afterwards? can't remember I don’t think we ever figured out the answer to this. I was bored and checked. LaGuardia's station starts in fall 1939, so only compared 1940-2020: LaGuardia warms 0.038°F/year Central Park warms 0.024°F/year good way to see this is LaGuardia was on average 0.15°F warmer than Central Park 1940-1959, 0.87°F warmer 2001-2020. Didn't expect there'd be a trend difference, area around LaGuardia was almost all built up by 1940. Maybe there was some undeveloped land 5 miles to the east and now there isn't? Well you're right, don't quite get why. Especially since Yahya Sinwar showed you don't need that dense of development for a decent UHI. |
|
|
|
Post by srfoskey on Feb 19, 2021 2:33:41 GMT -5
I don’t think we ever figured out the answer to this. I was bored and checked. LaGuardia's station starts in fall 1939, so only compared 1940-2020: LaGuardia warms 0.038°F/year Central Park warms 0.024°F/year good way to see this is LaGuardia was on average 0.15°F warmer than Central Park 1940-1959, 0.87°F warmer 2001-2020. Didn't expect there'd be a trend difference, area around LaGuardia was almost all built up by 1940. Maybe there was some undeveloped land 5 miles to the east and now there isn't? Well you're right, don't quite get why. Especially since Yahya Sinwar showed you don't need that dense of development for a decent UHI. Didn't Central Park Station get moved to a cooler location in the park or something? |
|
|
|
Post by AJ1013 on Feb 19, 2021 4:24:26 GMT -5
I don’t think we ever figured out the answer to this. I was bored and checked. LaGuardia's station starts in fall 1939, so only compared 1940-2020: LaGuardia warms 0.038°F/year Central Park warms 0.024°F/year good way to see this is LaGuardia was on average 0.15°F warmer than Central Park 1940-1959, 0.87°F warmer 2001-2020. Didn't expect there'd be a trend difference, area around LaGuardia was almost all built up by 1940. Maybe there was some undeveloped land 5 miles to the east and now there isn't? Well you're right, don't quite get why. Especially since Yahya Sinwar showed you don't need that dense of development for a decent UHI. My guess is more cars, newer taller buildings, and airport expansions causing more UHI at La Guardia. |
|
|
|
Post by Speagles84 on Mar 4, 2021 8:16:41 GMT -5
AJ1013 Avoiding completely derailing that thread, did you ever see Feb 2015 daily summary? Not as cold as the 1989 December cold snap or 1977 January freeze but easily one of the coldest months since I've been alive. 
|
|
|
|
Post by Morningrise on Mar 4, 2021 8:41:31 GMT -5
The coldest month I'm aware of in Saskatoon is January 1950. It had an average high of -27.3C (-17.1F) and an average low of -37.2C (-35.0F), and featured an incredible 5 lows below -45C, 13 lows below -40, and 20 lows below -35C. Also featured the coldest high I'm aware of, -36.7C, and probably the coldest mean as well at -41.4C. I imagine the coldest week and two weeks on record very likely occurred within this same month. Unfortunately Environment Canada doesn't publish specific stats like that so you have to manually go through all the records which I definitely don't have the time or interest to do. But this month seems like a good candidate for many various cold records of that sort. January 1950 data - I bet this is shalop 's dream winter month  |
|
