Quote:
Originally Posted by DrJoe
Right. So toss long term data out the window, which depending on the source has either city being warmer in May, because twice in the last 6 years the difference has been "noticeable" (1 degree).
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Last 10 years data is just as relevant as the 30 years average. The climate today is different from the climate in 1994.
After this year, it will be 7 consecutive years that Montreal has been warmer than Toronto in May. That is a clear trend.
Even using averages (today):
High:
MTL: 19.5
TOR: 19.3
Low
MTL: 8.1
TOR: 7.3
That's half a degree difference. I would certainly call it ''noticeable''
At the end of the day, generally speaking from observations, Toronto and Montreal would be roughly the same on cloudy days. It is sunny and warmer days that will see the big difference. Lake Ontario is a negative at this time of the year.