Edmonton AB record high since 1884 - 37C 99F on June 29, 1937. (oops guess a hot day in June isn't "unprecedented").
search wikipedia for "list of extreme temperatures in Canada"
Alberta record high 43.3C 110F Bassano Dam July 21, 1931
BC 44.4C 112F Lytton & Lilloet July 16 and 17, 1941
Manitoba 44.4C 112F Emerson July 11 and 12, 1936
Ontario 42.2C 108F 3 times July 20, 1919, July 13, 1936, July 11 and 12, 2017
Canada record high 45C 113F Yellow Grass, SK July 5, 1937
And remember -
If the high temp sets a "record" it is Climate Change ring the Alarms, virtue signal, pass laws, tax money...
If the temperature is a record low "you don't understand, that is weather which is not climate". Smarten up.