Fairbanks, Alaska. Anything -40 or colder is capital-C Cold. Anything warmer than that is "cold" only in a relative sense, as in "colder than yesterday".
We get about a 140 degree F temperature swing (over 70 degree swing, C). This summer we had a record breaking more than 35 days over 80F (26C) and all air conditioners and fans in town sold out quickly. We even tied the record high at 93F (33C). Unbearable, but mostly because it's always sunny out at that time of year so there's no relief at night. It'll be a high of 85 during the day and a low of 80 at night. Blech. I consider anything over 75F to be too hot, but don't seem to have a "too cold" setting, since I just throw on more clothes. (Thermals FTW!)
Also, the temperature swings can be massive here. This past spring it was snowing one Saturday and the next Saturday was 80. No humidity, though, and not much wind.
One of my brothers lives in LA so we frequently play the "what's your temp?" game with each other. I shudder at his 110, he shivers at my "only -20 today". We both laugh at the fact that my "unbearable" temperature is when he starts wearing long sleeves.
As for house temps, our heat is currently paid for as part of our rent, and a bone of contention, since he wants it at 73 and I want it at 68...I'm pregnant, so for now I win. Also, that's what the thermostat says but our place is a sieve, so who knows what it really is in other parts of the apartment? maybe 5ish degrees colder, depending on the room?
When we had to pay for heat we kept it at 65 when we were both home and awake (again, leaky cabin so the heater was constantly running at that temp in a vain effort to keep the entire place that warm, so probably closer to 50 if you weren't directly next to the heater) and 50 at night (probably around freezing in our sleeping loft). I know it was cold enough in there that the sheets we hung over the window above our bed froze to the window. My in-laws bought us an electric blanket so we turned that on for 10-15 minutes before getting into bed, just long enough to make everything nice and warm, then it got turned off and our massive pile of blankets kept us (and the dog) warm enough. In some ways, I miss those days.
Jamesqf - do you really get ice fog in Nevada?