How long have accurate temperature records been kept in Western US and Canada? My semi-educated guess is less than 150 years. I don't see Trapper Joe of Kamloops carrying around a highly accurate meteorological kit in addition to his traps and hides. Given there are 365.25 days in a year you can expect to set a couple of record highs and lows in any given year.
Personally, I will contribute to "global warming" by cranking up the AC. I will add stress to the power grid and probably add to the profits of the fossil fuel industry just like most everyone else. And I will sleep soundly, without a tinge of regret.