London's first 27c/80f high in 2015 (place, sunny, normal, cloud)
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Another stupid London debate.. it gets so boring...
Heathrow doesn't even record the hottest temperatures in the London area - Gravesend does and it is not even in the UHI (technically it is not in London, although it is about the same distance from central London as Heathrow)
London as a whole generally reaches 30C every year, the last time not being 22 years ago in 1993.. Heathrow might have had a few more instances though, it is silly to judge the whole climate of London on just Heathrow alone which is in the suburbs.
That aside, what is so special about 30C anyway? Last July here was very nice - only a record max of 30.3C at Heathrow but an average July temp of nearly 26C. Summers here are generally very stable, we don't often get much above 32C in mid summer, but then again we very very rarely go below 19C in mid summer as well.
This looks very pleasant to me, although a bit boring - July 2014:
Some major cities where the main airport is located doesn't represent the city's climate well.
I don't think that is the case with Heathrow.
For a huge city like London, Heathrow is imo is pretty much in the city. .
Average lows in central London might be a couple of degrees warmer, but I doubt the
average highs are much different at all.
I think Heathrow presents the London climate well.
Show me official 1981-2010 stats anywhere else in London substantially warmer,
I'd really like to see.
Another stupid London debate.. it gets so boring...
Heathrow doesn't even record the hottest temperatures in the London area - Gravesend does and it is not even in the UHI (technically it is not in London, although it is about the same distance from central London as Heathrow)
London as a whole generally reaches 30C every year, the last time not being 22 years ago in 1993.. Heathrow might have had a few more instances though, it is silly to judge the whole climate of London on just Heathrow alone which is in the suburbs.
That aside, what is so special about 30C anyway? Last July here was very nice - only a record max of 30.3C at Heathrow but an average July temp of nearly 26C. Summers here are generally very stable, we don't often get much above 32C in mid summer, but then again we very very rarely go below 19C in mid summer as well.
This looks very pleasant to me, although a bit boring - July 2014:
Some major cities where the main airport is located doesn't represent the city's climate well.
I don't think that is the case with Heathrow.
For a huge city like London, Heathrow is imo is pretty much in the city. .
Average lows in central London might be a couple of degrees warmer, but I doubt the
average highs are much different at all.
I think Heathrow presents the London climate well.
Show me official 1981-2010 stats anywhere else in London substantially warmer,
I'd really like to see.
I agree that central London has probably roughly the same highs as Heathrow (although LWC shows the centre to be about 1C warmer in April, May, June, September). I disagree that Heathrow is in the city - I have lived 10 minutes away from Heathrow my entire life and it is certainly not in a very urban area, lots of countryside around it.
UHI for London only really seems to count for low temperatures, not high temperatures, which is not really surprising at all. You can see it below on the wikipedia page for London, although I think that the LWC UHI station only has about 15 years of data, but that has included both some of our hottest months on record along with our coolest on record (July 2006, August 2003, July 2007,2008, Spring 2013, December 2010 for example) so it gives you a rough idea that the effect of the UHI really only counts for low temperatures.
I forgot the exact locations and have to go to work now, but it is on the Met office year summary page I know.
Quote:
Originally Posted by Ariete
If Gravesend or some hick county in LA are "in the metro area", I could as well use Lahti's heat records for Helsinki, damn it.
The only difference is that Gravesend is actually only about 20km from central London, some of the places LA-Mex uses for LA are actually about 100+km away from LA
The only difference is that Gravesend is actually only about 20km from central London, some of the places LA-Mex uses for LA are actually about 100+km away from LA
So? I don't cherrypick temps from Rajakari (the lighthouse), Salo or Saint Catherine's either, though they are all less than 20 km away except from Salo.
One weather station is one weather station and you should stick to it.
London is a lot bigger than Turku so it's a dumb comparison. If one station in London reached 32C then London reached 32C. Simple.
Why? So obnoxiously sized metro areas have a cherrypicking advantage while smaller cities don't? This gives a tremendous advantage to the big cities as they have many weather stations to choose from, while small cities have to stick to one. Size does matter?
Ok, I will use Rajakari and Salo for the record highs and lows this year. Or even Kiikala.
Why? So obnoxiously sized metro areas have a cherrypicking advantage while smaller cities don't? This gives a tremendous advantage to the big cities as they have many weather stations to choose from, while small cities have to stick to one. Size does matter?
Ok, I will use Rajakari and Salo for the record highs and lows this year. Or even Kiikala.
That is precisely the case, yes. Especially if the cities are highly variable in terms of topography. Use whatever stations you want.
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