Sure, the lack of sunlight isn't fun, but you'll never get a clearer night to stargaze than in the deepest part of winter. When I was younger, I would actually go camping in the middle of winter, and me and some friends would get fully suited up and just lie in the middle of a field, usually in the mountains so it was high-altitude to boot, and just watch the sky. Countless stars, naked-eye galaxies, on a good night (and if you know what to look for) the Milky Way. The best part was the feeling that you had to cling onto the Earth, or you would just fall off into space forever. A bit disorienting, and it puts you in your place (i.e. that you and everything humanity has ever done is irrelevant in the grand scheme), but it is also breathtakingly beautiful.
I was always the last to leave, and even then only because everyone else was freezing, and they assumed that I was too. For some reason, the cold doesn't affect me like others though, and I could stay for much longer and try to take in all the universe through my optic nerve.
You just don't get that during the summer, or at least not to the same extent.