There's a lot of things I like about winter...
fresh snow (before it gets slushy and gross), crisp air, scented candles, cozy sweaters and hot drinks.
But... there are a few things I like so much less...
It's dark more, cold, wet, all the holiday pressures, trying to remember to take enough vitamin d, extra messy messes, cabin fever and irrational depression.
I have a good family, a warm (most of the time) home, and so much more to be happy about but whether it's the weather or the lack of sleep ( snoring husband and a 3yr old who still doesn't sleep through the whole night) or lack of sunshine it really doesn't matter why- I just feel blech. I should be surrounding myself with friends and activities but I just want to hibernate till spring. 
I know this is a common problem even given a name (s.a.d.)-which I don't think I have, for me I think it's more just a funk exasperated by someones antisocial attitude and a slightly more removed home making me a tad more sensitive to everything ( lack of sleep probably playing a large part too), I just need to force myself out of it.      somehow.