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Thunderbolt_

Largest diurnal temperature range you have experienced

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What is the largest diurnal temperature range you have experienced?

Mine was in March 2012 when I recorded a maxima of 21°C and a minima of 0°C the following night.

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I couldn't tell you the exact range, but we were in Scotland. Lovely hot day with day temps of low to mid 20's but felt a lot hotter and in the night it was cold enough to see your breath and a heavy frost the next morning.

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I can't be sure to be honest,  nothing sticks out of the memory, I suspect it would be a start of 9 or 10 and a high in the low 30s, probably happened a number of times over the years. I've seen a 2C rise to a 32C at another place in Tasmania. Something else that stands out ( another category altogether but sort of related ) is difference in maximum temperature from one day to the next. The Hobart record is a 25C differential, a top of 35.1C to a maximum of 10.4C the next day. Back in the 80s.

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We seem to have a thing for 20.5C ranges here..

 

28th Mar 2012: 20.5C (0.3C to 20.8C)

29th Mar 2012: 20.5C (-0.2C to 20.3C) (so it fell 21.0C from the 28th to the 29th.. guess that would be a day in the 0900-0900 system).

13th Jul 2013:  20.5C (8.7C to 29.2C) 

 

Also:

24th May 2010: 20.3C (4.6C to 24.9C)

19th Apr 2011: 20.0C (1.9C to 21.9C)

 

As for this year..

15th April: 19.9C (2.2C to 22.1C)

7th April: 19.8C (-0.7c to 19.1C) 

20th Apr: 19.4C (-0.6C to 18.8C)

 

Most of these could have been a couple degrees higher if it wasn't for the onset of a sea breeze, being a few miles from the coast.

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Not experienced by myself, but an amazing range at Braemar yesterday (1.10.15). -2c to 22.7C! Braemar was both the warmest and the coldest place in the UK on the same day.

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Probably Bryce Canyon ,-4c at 7 am to 26 c by 3 pm ..not counting change of location !..

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Not experienced by myself, but an amazing range at Braemar yesterday (1.10.15). -2c to 22.7C! Braemar was both the warmest and the coldest place in the UK on the same day.

 

That also happened on the last day of September, with Braemar going from -1.3C to 24.0C. In fact this was both the coldest and warmest temperature recorded in the UK during September!  :blink2:

 

See http://www.metoffice.gov.uk/climate/uk/summaries

 

The UK monthly extremes were as follows: A maximum temperature of 24.0 °C was recorded at Braemar (Aberdeenshire) on the 30th, and a minimum temperature of -1.3 °C was recorded at Braemar (Aberdeenshire), also on the 30th. 

 

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At the top end of Glenurquart, in late June/early July 1995: 1-2C first thing and 31-33C by mid-afternoon...

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9th May 1978 for me. The same day the UK record was set at Tummel Bridge. I was in the next valley to the South near Aberfeldy around 9 miles away and recorded from -5C to +21C.
In Calgary in 1988 or 1989 I recall going from not much above freezing to nearly 30C in one day.

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