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Old 01-20-2015, 07:07 PM
 
Location: Christchurch, New Zealand
104 posts, read 110,521 times
Reputation: 116

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Has anyone lived in a place (or know of such a place) where in at least one year it seemed like the transition from summer to winter was nearly instantaneous? (I suppose it could go the other way around, but that seems less likely). That is, there was an extended "Indian Summer" which was abruptly followed by a cold snap that hung around long enough that by the time the weather reverted to the long-term average, it was clearly winter. (It's not just a warm day followed by a cold day, it had to have been consistently warm before and consistently cold afterwards).

I'm guessing the Midwestern US has a number of plausible candidates for this. If you know of a good candidate, it would be nice if you could find a graph, too. I'm particularly interested if there are one-day stark transitions, e.g. the daily high had never been below (say) 20C since the start of summer, then one day fell immediately below (say) 10C and then never rose over 10C again until spring. I don't know if that's possible, though.
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Old 01-20-2015, 07:47 PM
 
Location: MD
5,984 posts, read 3,456,795 times
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Check out these places. Are the changes drastic enough for what you're looking for?

https://weatherspark.com/history/329...-United-States

https://weatherspark.com/history/341...Xinjiang-China

https://weatherspark.com/history/337...ian-Federation

https://weatherspark.com/history/281...anitoba-Canada

Some other candidates may include places in central-southern Siberia (eg, Ulan Bator, Irkutsk, Novosibirsk, etc) and central Canada and interior Alaska (eg, Winnipeg, Yellowknife, Saskatoon, Bettles, etc)
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Old 01-20-2015, 08:17 PM
 
Location: Christchurch, New Zealand
104 posts, read 110,521 times
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Quote:
Originally Posted by Shalop View Post
Check out these places. Are the changes drastic enough for what you're looking for?

https://weatherspark.com/history/329...-United-States

https://weatherspark.com/history/341...Xinjiang-China

https://weatherspark.com/history/337...ian-Federation

https://weatherspark.com/history/281...anitoba-Canada

Some other candidates may include places in central-southern Siberia (eg, Ulan Bator, Irkutsk, Novosibirsk, etc) and central Canada and interior Alaska (eg, Winnipeg, Yellowknife, Saskatoon, Bettles, etc)
I know those climates have very quick transitions, but I'm not so much looking for climates, but specific weather in a given year, in which there was an unusually discrete shift in weather, rather than the more continuous shifts that are generally the case.

It could in fact involve temperature changes less drastic than those, but are more unusual for said area's climate. For instance, in 2013 I distinctly remember it being consistently unseasonably warm here at the end of March, probably mid-20s C, then the very next day it fell into the mid-teens and never went back (except for brief periods, due to foehn winds) until spring.

WeatherSpark refers to "warm spells" and "cold spells" as days with above and below average high and low temperatures, respectively. What I'm looking for is more like a significant warm spell that immediately precedes a significant cold spell in the autumn. There is a reasonable example of the winter -> summer variety in the Urumbqi link. Feb 25 -> March 29 had 33 days of below average lows, while April 9 -> 28 had 20 days of above average highs. It would have seemed like winter went very quickly to summer from mid-March to Mid-April, although it's not quite as clean an example as I'd like.

Last edited by Nichle; 01-20-2015 at 08:52 PM..
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Old 01-21-2015, 12:54 AM
 
Location: Perth, WA
2,258 posts, read 1,303,760 times
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Not exactly what u were talking about, but in Perth this year, we had a long, normal spring and then on the 15th or 16th of Decemeber we got a 38˚C day and now it's been averaging 32-35˚C since then. So an immediate change from spring to summer rather than winter to summer if that's any help, just look weatherspark or something like that for info.
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Old 01-21-2015, 08:52 AM
 
2 posts, read 8,587 times
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Pretty much every day in New England. One morning, it's in the negatives (F) and snowing, then later that day it'll be in the high 60's (F) and sunny. Weather here is all over the place.
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Old 01-21-2015, 10:58 AM
 
Location: Christchurch, New Zealand
104 posts, read 110,521 times
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Quote:
Originally Posted by FosterBunny View Post
Pretty much every day in New England. One morning, it's in the negatives (F) and snowing, then later that day it'll be in the high 60's (F) and sunny. Weather here is all over the place.
What I'm looking for is a one-off sudden change as opposed to consistently erratic weather, like 10 days of unseasonably warm weather followed by 10 days of unseasonably cold weather, the result being that the change into winter could be easily marked by one day.
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Old 01-21-2015, 11:43 AM
B87
 
Location: Surrey/London
11,769 posts, read 10,593,888 times
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London

Apr 1989: avg max 11.5c, avg min 4.2c, precip 64.2mm, sun 144.5 hrs
May 1989: avg max 21.0c, avg min 10.0c, precip 12.1mm, sun 310.1 hrs
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Old 01-21-2015, 11:56 AM
 
Location: Top of the South, NZ
22,216 posts, read 21,667,670 times
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Quote:
Originally Posted by B87 View Post
London

Apr 1989: avg max 11.5c, avg min 4.2c, precip 64.2mm, sun 144.5 hrs
May 1989: avg max 21.0c, avg min 10.0c, precip 12.1mm, sun 310.1 hrs
Wow!, that's quite a difference.

The biggest gap I could find for here between Oct and Nov, was only 3C.
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Old 01-21-2015, 03:18 PM
 
Location: St. Louis Park, MN
7,733 posts, read 6,457,003 times
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Last November in west central Texas it was 80 and sunny one day, and the next had lows in the 30s and highs in the 40s and the day after that got down to the 20s.
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Old 01-21-2015, 03:25 PM
 
Location: Paris
8,159 posts, read 8,730,067 times
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Balakovo 2012:


http://www.city-data.com/forum/31647109-post52.html
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