I was curious to see how our normal temperatures are changing. Meteorologically speaking, an normal value is the average value over a set 30 year period, usually starting with year one of a decade, like 1941-1970. The two international airports in my general vicinity are both in rural areas and close to water, so there will be little, if any, effect from urban heat islands.
In 2013, Environment Canada no longer took observations from Canadian airports. The weather observations were taken by Nav Canada. Rather than trying to merge data from stations at the same location but with different climate numbers, I just took the last period to be 9 years long.
This is what I found...
