Please register to participate in our discussions with 2 million other members - it's free and quick! Some forums can only be seen by registered members. After you create your account, you'll be able to customize options and access all our 15,000 new posts/day with fewer ads.
Kew Gardens in London has average maximums of 21.0, 23.5, 23.2, 20.0 in June, July, August and September respectively.
Outside of London, Wisley in Surrey averages 20.6, 23.0, 22.7, 19.5 for the same months.
Cambridge, north of London, averages 19.9, 22.8, 22.6, 19.3.
Charlwood averages 20.5, 22.9, 22.6, 19.2
Gillingham averages 20.7, 23.3, 22.7, 20.0
Similar averages are widespread across south east England and the East Anglia region, so this area is definitely warmer than those places in Finland, especially since the warmth lasts for longer (Turku and Tampere average above 22C in one month, and Tukru only averages above 20C in one other month).
Let's heat this up again a bit, shall we? No, those are good picks, I wasn't aware of those locations, Wisley and Charlwood I have never even heard of. Especially those September highs are something that no location in Scandinavia can beat, not even Copenhagen. SE England seem to have rather nice summers, comparable with Berlin.
I was thinking of places like Manchester, Liverpool, Birmingham, Newcastle etc, and with them Scandinavian summers are quite similar.
I calculated the averages for Helsinki for the last ten years. Of course that's a short period and warm and cold summers makes a difference in average conditions. Which is of course the reason why we use 30 year averages.
The results were June-Sept: 20.0, 23.7, 21.5, 16.0. Still colder than your locations above, but the main difference mostly in September. And that's the reason we have a C climate by my standards, as the summers simply are too short.
The last decade is spoiled by summers of 2010 and 2011 that were the hottest ever recorded in northern Europe. I doubt Helsinki averages a July high of 23,7°C over a longer time period. Tallinn is only 21,2°C for example.
The last decade is spoiled by summers of 2010 and 2011 that were the hottest ever recorded in northern Europe. I doubt Helsinki averages a July high of 23,7°C over a longer time period. Tallinn is only 21,2°C for example.
As I said, a 10 year period is very short and two warm summers will have a effect on the averages. Not that big, though. If excluding the 2010 and 2011 summers and replacing them with 2001 and 2012, the July max would still be 23.2C. Counting all these 12 years, the average is 23.8C.
On the other hand, February and October have been a tiny bit colder during these 10 years than during the whole 81-10 period. Once again, these are not scientifically plausible and I did them just for interest.
I don't see this trend reversing in the next 20 years. The difference in yearly means between the 60-90 normals and 81-10 averages is 0.7C, and I remember that the change is similar in the UK. This has nothing to do with the argument as a whole, I don't see Finland or Estonia catching up with SE England, as the temperatures will rise there as well.
Comparing 81-10 with early 20th century normals, summer temperatures have risen here with 0.93C and spring temps with 1.84C, something that is clearly noticeable. In Central Sweden, the rise have been pronounced mainly in winter temperatures with less snowfall, here the winter rise is just 0.31C
Well here's the graph, might as well post it, as I made it anyway (really like these wiki graphs ):
The monthly means are the means of the 10 year monthly means, so they don't necessarilly match with hi+lo/2 temps, especially in winter. Finnish Met Institute calculates them in a more elaborate way anyhow, so even their averages are not always just equal to hi+lo/2. Don't know what the scale is, have to ask them sometime, but I don't want to spam them with questions every week...
Please register to post and access all features of our very popular forum. It is free and quick. Over $68,000 in prizes has already been given out to active posters on our forum. Additional giveaways are planned.
Detailed information about all U.S. cities, counties, and zip codes on our site: City-data.com.
Please register to participate in our discussions with 2 million other members - it's free and quick! Some forums can only be seen by registered members. After you create your account, you'll be able to customize options and access all our 15,000 new posts/day with fewer ads.
):
