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I like how koppen words it "Hot Summer Continental"
I am missing your point.. This thread is about if certain cities in southern Ontario may eventually become Humid Subtropical. You posted a picture of a 7 day forecast in Toronto - It takes years of data to determine if a climate is changing.
And yes, certain February's have been colder than January's in the same year.
One way of looking at global warming is that everything moves north. To get an idea of what Toronto's climate would look if it became subtropical would be to look at the nearest humid subtropical climate to the south, which would be Pittsburgh. Chances are, Toronto's weather would be similar to Pittsburgh if the climate warmed (obviously not exactly like it due to differing geography, but it's similar enough to get an idea).
It's subjective. To me, 23C is warm, and London rarely has highs under 20C in July, in an average summer, that is. Even during cooler summer months, highs under 20C are not commonplace.
The most 'average' summer month I could find was August 2002, which had 3 days with a high below 20C, compared to 8 days with highs above 25C.
Perhaps not in July and August, but in June they are commonplace. (If the stats from Meteociel are to be trusted.) I think most Central European locations have quite often <20C days every June, and a handful in July-August. Prague had a bit warmer-than-average June this year, and still 8 days <20C. Lowest high being 11.5C.
Berlin hits frequently highs below 20C in late August.
It's weeks like these where claims that Toronto is getting close to Vancouver's winter climate are proven to be pretty much bogus.
It was -21C in Toronto this morning. This is four degrees C colder than the all-time record cold for Vancouver. But it's a good 10 degrees C off the all-time record cold low for Toronto which is colder than -30C.
Toronto is the mildest of Canada's biggest cities after Vancouver, and winters in Toronto aren't really all that bad by Canadian standards.
But they are still a long way from winters in Vancouver, or "subtropical" ones according to most anyone's definition.
As we can see from Google Streetview, the influence of the subtropics is already making itself felt in southern Ontario.
Cool. A lot of expense for a few months, but they would be something different.
I wonder whether they let them die, dig them up and store/sell them, or build protection over them?
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