Same here. If I set the system on "kill" (all the pumps on high) it could be -20 and I could have it 90 indoors no problem.
It was 0° here the past several nights, storm rolls in and temps go up into the low 40s, dumps 3 inches of rain...... Storm passes and it drops back into the single digits......NUTS!!
In my 75 yrs, I going to say that our weather is always drastic swings. We either get our weather off the ocean or from the west. That is like night and day. Those extremes are very cyclic. That is what helps save us from some invasive bugs and plants, and from some folks who just can't deal with the cold or fear there is a bear behind every tree.
At that point, it’s pretty close. -45° f = -43° C and -45° c = -49° f. Either way it’s pretty damm cold!!!
LOL, Either way it is F,F,F,F, Freaking Cold! Despite people thinking that the northern part of Dakotah Territory could just as well be Canadian we are still American and use F°.