If you have good double-glazed windows, the snow doesn't usually stick. It'll build up in the corners, though... Or of there are screens over the windows it can

If you have good double-glazed windows, the snow doesn't usually stick. It'll build up in the corners, though... Or of there are screens over the windows it can stick to the screen. (This focus effect is almost as if there is a screen, where the large drops run down the screen and the spattered mist is on the glass, and the edge of the depth of field is between the two...)