When I look up pictures of Arizona I see cacti and deserts. Lytton is hot but it’s a lot of forests and lakes. Would an equivalent be Arizona getting a severe Canadian winter with 1-2 weeks of -40 ?

Maybe not quite that extreme. Something like a few days or a week with highs like 32 - 38 °C is not that unusual in much of southern Canada, including that part of BC. Still a solid ten degrees hotter than what would be considered very hot normally.

Southern BC is very much a desert and barely sees any snow in winter, yet negative temperature.

Source: I have family in Osoyoos.

Southern BC just barely qualifies as a desert (9.8" of annual rain in Osoyoos vs. 10" to qualify as a desert) ;)

But yeah Osoyoos is wildly similar in architecture/vibe to parts of AZ/NM.

> Southern BC just barely qualifies as a desert

Give it a decade or two?

Southern BC leeward of the mountains, that is.

On 10 July 1913, temperatures at the aptly named Furnace Creek area in the California desert reached a blistering 56.7°C (134.1°F).

https://www.sciencemag.org/news/2021/05/move-over-death-vall....