The boys are dressed for snow all the time, especially since there is always snow in South Park. The interesting thing part about their attire, though, is their gloves. Sometimes they are off, and we see skin, and other times they are on, and their gloves match something on their hats (Kenny always has is gloves on).

But weather they have their gloves on or off seems to be inconsistent. In Episode 701, where I noticed this, the boys have their gloves off in the scientists lab, but when they run outside and are in Chef's car, they have them on again. (Stan's gloves come off and on in the car chase sequence). There's a couple other sequences later

Besides that, where do they store their gloves anyhow?

Where do you think? In their pockets!

Lol. xD Well, they take them off in school and at home so they can write, play video games and so it doesn't get too hot. I wonder why they never really take their coats and hats off. I get yelled at for having my hat on! D:<

Kenny takes his gloves off a few times. He took them off in Timmy 2000 and in Do the Handicap Go To Hell.