I'm a fairly sporadic photographer for the most part, and a day job in software catering to business clients with a lot of year end and first quarter updates means I tend to have relatively hectic weeks this time of year anyway.
A big part of photography for me is just the exploration and experimentation. I work and play with what's available to me, so winter conditions are just another factor to allow to influence my photography.
The short days do translate into fewer evening outings for general photo walks, but on the other hand opens up more time to experiment with tripod and low light work - During the summers when we have 16 hours of full daylight, and I'm expected to be awake and functioning in the office in the middle of those, doing night photography can be a bit of a scheduling challenge.
At the same time the summer lighting can be overly harsh and difficult to do anything all that interesting with for a good chunk of a weekend, but the west coast winters here are mild enough to not be too much of an issue. Dull lead skies can sometimes be a challenge to find anything interesting to do with them, but isn't that kind of the point to trying to make an interesting photograph? Take what's in front of you, and capture something worth looking at again?
Luckily I'm also of the mindset that failure in my photography is totally an option - And it doesn't really matter at what point along the line I decide an image just isn't working. Whether I decide a photo doesn't work when I'm looking at a scene before I even pull a camera out to take a photo, or decide that it just doesn't work after I have a copy of a print in my hand, it is all the same. I'll have just spent a bit more money to make that decision in some cases. But I can always change my mind and decide that an image does work after I've captured it, but I can't usually do the same if I make that decision before clicking the shutter.
As a bonus, a photo I decide doesn't work after I capture it can be re-used as a lesson or talking point about why it wasn't working.
[I may have a lot of talking points about why a photo 'doesn't really work'... Entire rolls of them in fact.]
But I will admit that it was a bit more of a physical challenge to work with photography in the winter when I lived back east. I do miss working with the stark snow covered landscapes and shorelines, and I had spent many hours out playing with snow patterns in the wind. My fingers however are very thankful that I don't do a lot of that anymore...