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Location: Segovia, central Spain, 1230 m asl, Csb Mediterranean with strong continental influence, 40º43 N
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It's very rare here because the altitude. I would say it happens one or two times per year if many heatwaves hits us on summer, otherwise we don't see them in heatwave-free summers.
We didn't experience them in the last summer.
The average for the first 20°C+ night is July 10 at Orly airport, so I voted July. Rather meaningless since we get only 2 of them each year on average.
Paris-Montsouris gets 5 per year and the Latin Quarter (central Paris) averages 12 per year over the 2010-2013 period (short I know).
Quote:
Originally Posted by Ariete
20C yes.
I kill myself and everybody else if Brest has more tropical nights and 35C days than us in 2070. Oh, I'm dead anyway.
Brest gets 0.1 20°C+ minimums per year.
Quote:
Originally Posted by ben86
I have to assume that is accurate, but in all the other hot months I've cherrypicked to have a look at I can't find anything else above 17s. I don't see how a station halfway up a hill with fields all around it can ever be 1.4C milder than the centre of Leeds the same night though when it was 2-3C colder during the day as you'd expect?
Dunno, if it's really halfway up a hill and the hill is steep enough, it can prevent radiational cooling. The town of Menton has the mildest nights of France for that reason.
here's the 1961-1990 average for no. tropical nights per year in europe.
That map is very incorrect for Portugal, only Faro averages more than 20 tropical nights per year, and the northern half of the country is all below 5 nights per year
It has happened a few times in May in Nice (2007, 2011) but the vast majority of the time 20C+ mins start in June. They're the norm in July and August, fairly common in September and not unheard of in October.
Btw, my personal threshold for a "tropical night" would be a 23.0C min. That's standard for sea-level equatorial climates (Indonesia, Malaysia, etc.) and deep (sub)tropical summers (Florida). Average mins of 25C+ are quite unusual and I'd see them happen rather in dryish/desert/semi-arid monsoonal areas (northern India, Middle East) or extremely urbanized tropical areas (southern China around Hong Kong, etc.)
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