Question

Would you expect a butane lighter to work in winter when the temperature outdoors is 25 ∘F?

Answer 1

No, I would not expect the lighter to work at 25 °F.

25 °F ≈ -4 °C

The boiling point of butane is -1 °C.

At -4 °C, the vapour pressure of butane is not great enough to push back against atmospheric pressure.

The lighter won't work.