LED lights have much longer lifespans than other lights, and that includes under cold weather - cold weather has negligible impact on LED lights.

LEDs can actually perform better with colder weather, but definitely you won't have the same problems that sued to happen with other lights.

Traditional incandescent lights work by heating up a filament (usually tungsten) to such a degree that it emits heat and light. Only about 5 or 10 per cent of the energy is actually converted into light however - most is heat. So the colder it is, the harder the light has to work, which is why cold was such a problem.

However LEDs don't use this mechanism, so cold is not a problem.

For LEDs, 90 per cent of the energy is converted to light.

LEDs do get hot but they have a heat sink to draw away the heat - and of course, if i is cold, this heat becomes less of a problem, so cold does not impact them.

It is the other way - in fact HEAT is the problem for LEDs, not cold. 

LEDs are absolutely the perfect choice for cold weather because they operate optimally in the cold.

Correct, in fact LED flood lights thrive in cold weather. So no problem whatsoever.

The only thing that might be impact is the driver, but I think that would be fine.