Was thinking the same thing. The challenges of winter are cold, road conditions, and darkness. For me darkness lasts until about mid February. My goal on most days is to get home by 6:00 and by that time of year it won't be completely dark yet.

To me that makes a big difference. February can still be really cold and is usually more snowy than January, but it's my favorite winter month. By the first thaw in March I am very much done with winter but very often it is not done with me.