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These ranges are all in the summer month of December: One day is 7C (44F), 30C (86F) a week later and down to 12C (53F) later that month. Even Melbourne hasn't gotten that extreme.
To note, summers in the southern parts of Australia have the most fluctuating temps due to the cool southern ocean. Our winters are more stable.
Any other crazy ones? I hear Dallas and New Orleans are extremely changeable too (in their winters though).
Oklahoma City in winter is quite the trip from what I understand. There was one town in Oklahoma that experienced a 110F degree swing in one week a few winters ago if I'm not mistaken. The whole Great Plains region is extremely variable.
During the winter in Chicago we've gone from 17C to -12C in a 12 hour period in Feb 1900. In November 1911, we've gone from 23C to -11C in less than 48 hours. In March 1908, we've gone from 22C at 2 pm and dropped to 5C at 3pm. On April 20, 1936, the temperature fell from 28C to 13C in 10 minutes. Thereafter, the temperature fell to 0C by 4am on the 21st.
January 30, 1938, the temperature fell from 7C at 7am to -18C 24 hours later.
May 9, 1963, we went from 29C to 17C in 150 seconds.
Oklahoma City in winter is quite the trip from what I understand. There was one town in Oklahoma that experienced a 110F degree swing in one week a few winters ago if I'm not mistaken. The whole Great Plains region is extremely variable.
One of my favourite stats: on 11 November 1911 Oklahoma City recorded a high of 83F and low of 17F, and more than a hundred years later those figures are still the record high and record low for the date! That's extra impressive when you live somewhere that likely won't see 83F or 17F at all in a whole year
One of my favourite stats: on 11 November 1911 Oklahoma City recorded a high of 83F and low of 17F, and more than a hundred years later those figures are still the record high and record low for the date! That's extra impressive when you live somewhere that likely won't see 83F or 17F at all in a whole year
Well, first of all we must ask about fluctuating in which way? If within a single day, within a week, etc.
Anyway, I think of two main regions in the world where we should find the biggest swings:
1) Inland North America, where Polar air masses from Northern Canada and War air masses from the Gulf of Mexico interact dramatically, plus the occurrence of huge foehn winds (chinook) in some areas.
2) Polar and subpolar areas -often coastal or near coastal spots- which are subject to both continental and oceanic air.
Anyway, we can find good swings in many parts of the world.
Last month, in Villa Reynolds, Central Argentina, in six days temps went from -9.8ºC to 35.1ºC: Resumen synop
Last year, Córdoba City experinced 40.0ºC in September; 6 days later the daily high didn't even reach 10ºC: Resumen synop
Some hilly areas around Córdoba were hit by massive fires due to the dry heat, only to get covered by snow one week later.
Talking about daily ranges, here in Argentina the lowlands east of the Andes stands out, as they are often hit by Zonda winds (foehn). Jáchal has recorded the highest daily range of the last 15 years at least. On September 1st, 2008, it recorded a low of -2.4ºC and a high of 36.2ºC.
Somebody posted a summer month's daily data for somewhere in Tasmania not long ago, and it was crazy. Well over 30C one day and barely making 15 the next, and that happened several times, nowhere in the UK is that changeable. And it seemed to be only slight changes in wind direction that was causing it, not the arrival of a depression or cold front as happens here.
For short changes in a time period, the Great Plains is higher. But northern New England fluctuates more in the sense of how far the daily min is likely to far away from the mean daily low. Note New England has its highest deviation in the minimums rather than maximums. Oklahoma City is the reverse.
To show how extreme New Hampshire is: in mid January, the highest minimum recorded most days is around the mid 30s, coldest minimum aroun -34°F. A couple days have recorded a minimum of 52°F. Oklahoma City doesn't have that range.
In the UK, on the night of the 15th and 16th of October, a hurricane force storm swept across southern Britain. That night the temperature went from 10 degrees (50f) to 17 degrees (around 63) and then back down to 10 degrees (50f). This all in one night!
As the weather girl tells you at 1:07:
I think there was also a similar(ish) thread where someone wrote that somewhere in the north of England sore temps go from -5c to 16c in 24 hours. Can't remember the specific year or location. But I think it was in March(?).
I think there was also a similar(ish) thread where someone wrote that somewhere in the north of England sore temps go from -5c to 16c in 24 hours. Can't remember the specific year or location. But I think it was in March(?).
Went from 51°F to 83°F today (so far). So a change of 17.8°C. Biggest range I could find this summer was 48°F to 83°F on June 23rd. Biggest ranges are usually in the spring. April 7, 2010 had a morning low of 40°F and a high of 90°F, range of 27.8°C.
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That's extra impressive when you live somewhere that likely won't see 83F or 17F at all in a whole year 
