Most shooters that I've known in this part of the country do tend to avoid shooting in the winter, unless the weather's hot and balmy (37 F and sunny
).
Very few people put in proper range sessions outdoors.
Personally...
I do more shooting from a bench in the winter than the summer. My local range is east-facing and I almost exclusively shoot at sunrise. So, when the sun goes south for the winter, I can shoot all I want. But during spring, summer, and fall, the sun rises behind my targets. With iron sights, the situation is very uncomfortable. With optics, it's torture (and harmful).
I get about 45 minutes of shooting before the sun crests the hill, if I start before official sunrise, and then I can't do anything more until 4+ hours later (when the wind is at full strength).
I just go out planning to get kicked off the range by shivers, frozen hands, or blowing snow.
No matter how well I prepare, mother nature always finds a chink in the armor.
More often than not, it's 0-15 F when I go out in the morning, and the wind picks up about an hour after sunrise.
Generally, if my finger isn't on the trigger, preparing to fire, my hand is in my pocket. (I can't shoot most firearms with a gloved trigger hand, and fingerless gloves have never worked for me. If one finger is cold, the whole hand is.)
The off hand usually stays in a glove and isn't an issue.
When I get uncomfortable enough to compromise my shooting for whatever reason... I leave.
There's no point in sticking around, suffering, and wasting ammo, when the results will be skewed by my discomfort.