While you are right in principle, right now Lytton is not just experiencing record temperatures, it's experiencing temperatures 5 C higher than anything encountered in the last 100-150 years (highest peak known before was 44.4C in 1941, 29 June 2021 was 49.6C):

https://en.wikipedia.org/wiki/List_of_extreme_temperatures_i...

Edit: corrected values to use the previous record for Lytton instead of the previous record for all of Canada.