Winter and Autumn are the best seasons for Goth wear despite the problems that can rise with the chill. You don't have to ditch your wardrobe, just read my tips and use your common sense.
Winter coats are the stable piece of a wardrobe but make sure to check the label or recognise fabrics that can withstand typical weather. Your Winter coat should be fitted and closed securely so the warm air is trapped in, depending on your location you may want to be able to wear a hoodie underneath your coat for extra warmth. Hunt for a coat during the summer when the sales will be on at most Alternative shops. For advise on Winter coats please look at my guide to winter coats post here.
Use your common sense and realise that some shoes just aren't appropriate for Winter weather. Check your shoes won't slide or take them to your local shop repairs to apply rubber soles on the bottom if needed. Avoid this mistake I personally made, I saw these Victorian Boots but soon after buying I had achy feet because they had small heels. You also may want to consider losing your flats or anything that rain that soak. Boots comes in all kinds of colours and styles so chose a pair or two to prevent soggy feet. Chuck a spare pair of stripy socks in your bag if you get caught out in the rain, just in case.
Some beloved materials don't mix well with wet weathers including some velvets that become water stained. Layering up clothing means you're less likely to get wet and it's easier to remove as the temperature changes. If you're going to a club use the cloak rooms and always pack a small jumper or cute cardigan.
If you still want to wear skirts in the Winter consider swapping a petticoat for a underskirt, bloomers would be even better. This will stop cold air circulating around your legs and any skirt flying.
Carry a mirror and basic make up in case you need to repair what runs due to snow or rain, wearing waterproof or long-wearing formulas of things like eyeliner and mascara can prevent this. Swap your suncream for moisturizer so your skin doesn't get dry, cakey foundation is not attractive! As well as cosmetics it's very handy to have a small torch in your bag so you can find your keys and avoid being roadkill.