-40°F? You must be north of 60°?
I only understand three temperatures in Farenheight:
1) -40°F ~= -40°C (scales cross here)
2) 32°F = 0°C = freezing point of water
3) 212°F = 100°C = boiling point of water
Luckily, you have hit on one of the values that I can understand. That is pretty darn cold.
Our lowest daytime high here has been -18°C. (-27°C with windchill). Nighttime lows don't count.
But only for a day or two at a time. I actually miss the old winters where it would remain below -20°C for weeks at a time. Peak operating conditions for me. I can barely survive the summers anymore. I'm sure one of them will be the death of me. The big drag is that these warm winters bring so much snow with each snowfall, though it does not persist like it did in the cold years. No, now it just melts, and freezes, melts and freezes...
Ugh. A shoveling nightmare.
I got a chuckle out of a program I saw recently that described Canadian military cold performance research. They were only good to about seven minutes at -27°C.
Oh yes, they are all Olympic class long distance runners, but pretty darn wimpy when it comes to cold. Shameful.
Here's my pic attached. There are two cars under that snow in front of the house.