Seems to me Deer sorta conserve energy in cold lousy weather.After corn and beans are cut and gone,sitings in open tend to diminish.
IMO much depends on available food source,
human and dog(domestic or rabbit) presence.If some avail clover left,some standing corn,few beans left in open flds - Afternoon sitings are my best time.My best luck is from 3-5pm.All 5 of my deer this season have been taken at these hours.If some good thick woods with cedar,pine,bull brush cover(bedding),I have couple good stands in woods,produces sitings in Jan season.

Guess it all depends what kind of area your in.The more remote to humans and dogs = more deer sitings.