What would the temperature be in the building?

I’d guess around -10. I was in a blizzard for 3 days once and the heat went out. The temp inside was the same as outside.

-11

Eventually, it will even out—the indoor and outdoor temps.

However, it hasn’t gotten out of the twenties where I live for over three days, and the Cherry Vanilla cokes in my car haven’t frozen yet—they’re a little icy but not frozen.

Whut? This was a hypothetical question @Yellowdog.

Oh, sorry. I thought it was a hypothermia question.

Does the building have any old fashioned lights on? Are people in it? Was the heat never on? Is it insulated well? Is the sun shining in the windows? Is the ceiling low? Is the living space small?

Lots of factors can change the equation. I would think it’s much warmer inside than out in the elements. Even igloos built from ice and snow are warmer inside.

I’m guessing if it’s a small space, close to the ground, people living inside, maybe it’s as warm as 55–60 degrees? If it’s a regular building with 9 foot ceilings and large spaces and multiple floors then much much colder.

Let’s see what our jelly scientists think.

Wind chill has no effect beyond your skin. So the temperature inside will be the same as the temperature outside.

@kritiper What about the earth temperature if the structure is very low to the ground? I don’t know how tall this building is? Not enough information.

@JLeslie I assumed there was no heat from any other source, like from the earth itself. The OP didn’t allow for any other source in the question. Like, was the building at the equator or the South pole? Was the building in Death Valley or on Mount Everest? Was it a tall narrow building or a low building that covered acres?

As @Yellowdog said, it will eventually even out. No way is it 55–60 degrees. The house cools down during the long cold night. A few hours of sunny 45 to 50 degree daytime heat doesn’t have enough time to penetrate the insulated walls and do much good. It’s more miserable inside the house than outside in the sun. I’ve experienced this myself.

LOL! Thank you @kritiper!

That’s what I figured guys. Wind chill doesn’t count if you’re out of the wind.

Now, we can just ask Texas. They practically went through this very scenario.