You almost need them both up in Canader eh
stock a/c worked to ~230k miles, then the compressor ate ****.
new lasted 1yr/15k miles, POS, replaced it w/ the same thing (warr) so now waiting.
When I was in IA, t-shirts get you down to 60*F, I worked in NEGATIVE 20*F (chilly), but I was still fine down to ~40*F
Now, in FL, I avoid all under a 'numbing' 70*F