What cloud gives winter skys a gray dull color?

Question

is it a nimbo stratus cloud or otyher

Answer 1

Stratus clouds often give winter skies a dull gray color. They may also be altostratus or nimbostratus. These clouds are low level clouds that don't go higher than 6,500 feet. They look like gray sheets covering the sky.

Answer 2

Nimbostratus is correct.