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In around September and October, the driest time of the year, daily temps can be around 30C and nights can dip to a single digit. Normally, when it's hot here (summer), our nights are warm too (thanks to the humidity), but cold dry air can sometimes take a part, making hot days colder in the night (common in spring).
Where I live, we can go from -55F to +50F in two or three days for sure. Not sure if it's ever gone quite that far in 24 hours though. The Delta River Valley immediately north of the Alaska Range gets the effects of both extreme continental climate mid winter temperature inversions and chinook winds from coastal weather systems coming out of the tropics.
I was thinking the same thing, but after looking around, it seems that it usually takes several days for the transition to take place.
I know that I've seen it -1°C in the morning and +31.6°C in the afternoon in September. That's a 58.7°F rise in temperature. While it is quite common for the temperature to rise more than 30°C in the Spring, Summer, and Fall, I thought that for sure I could find even bigger changes in the winter, but alas, it actually takes several days for the change to take place. Lots of almost 30°C rises in temperature in the winter though.
Largest Dinural range you experienced in your Area
In New Brunswick, NJ we had Hi 87 F (31 C) Lo 40 F (4.5 C) 2 years ago in October. That day started out warm, afternoon was blistering, yet ended with frost the next day morning.
For Bremerhaven, i went through all records since 1949.
Large daily ranges are unusual here being a coastal site, but when they occur its most often in spring, when the gradient between the still cool North Sea water and the warm mainland is the largest. Sometimes they can also occur in summer when very hot and dry air is present.
The largest range i could find is 19.6°C- on April 26th 1951:
The low that day was 5.4°C and the high 25.0°C, very impressing for a coastal site.
Second largest: 18.4°C and this happened on two dates here.
First one on June 19th, 1955: Low 6.4°C, high 24.8°C
Second one: August 9th, 1992- which was the hottest day here since the begin of our recordings.
Low was 17.4°C, high 35.8°C.
On the other hand: There was also never a day with hardly any temperature movement, the lowest daily range was still 0.6°C on November 13, 1951 with a low of 7.0°C and a high of 7.6°C.
The record diurnal range is somewhere in Nevada that once had a high of 87 F (31 C) and a low of 12 F (-11 C) not sure where I'll look it up and post the link.
Wow, that's crazy.
Heat during the day and possibility of snow at night.
The record diurnal range is somewhere in Nevada that once had a high of 87˚ F (31˚ C) and a low of 12˚ F (-11˚ C) not sure where I'll look it up and post the link.
The place was called Deeth, and the record was set on 21 September 1954. Deeth in is Elko County, upstream on the Humboldt River from Elko itself, and may be a “frost hollow” location.
I had a look at notorious Bodie in the Sierra Nevada with its average 22˚C diurnal range, and the biggest diurnal temperature swing I could find there in recent years was 67˚F (37.2˚C) – from 15˚F (-9.4˚C) to 82˚F (27.7˚C) on 22 June 2007. Other notable swings I saw were from 18˚F (-7.8˚C) to 81˚F (27.2˚C) on 29 August, 2009 and from -10˚F (-23.3˚C) to 55˚F (12.8˚C) on 15 November, 2012. What’s notable about Bodie is that every year there are numerous swings from
below 0˚F (-17.8˚C) to above 50˚F (10˚C) in cooler months
below 32˚F (0˚C) to above 80˚F (26.7˚C) in hotter months
Last edited by mianfei; 05-14-2015 at 10:49 PM..
Reason: Duplication removed
Yesterday had a morning temperature of 34°F and afternoon high of 71°F
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Largest Dinural range you experienced in your Area
not sure where I'll look it up and post the link.
