I grew up down in south florida and live in NC mountains now. I don't change firearms with the weather. Don't change how I carry for the weather ether. Also no tacticool clothing. Only real people cloths.
If its cold and you wear a heavier coat what do you do when you go inside where its warm. Keep it on!! No , so why change anything.
Big guns don't work for all ether. Some of us like t-shirts and jeans or shorts.