I thought this would also help. It's an old article from Scars1, and it's actually posted on this thread, but its material is especially fitting for this time of year.

The paragraph's third sentence discusses the effect of cold weather on the skin.

"If you’re finding your skin is worse in the winter and around the holidays, you are not alone. Doctors say stress and fatigue increase androgen production which can worsen acne. The cold weather also shrinks pores, which can cause more clogging of the follicles. Dermatologists advise patients to stay hydrated – because consuming more water helps to reduce facial redness and sebaceous gland oils. They also say you should avoid using abrasive cleansing agents or vigorous scrubbing, as it increases sebum production.

You can find the article in its entirety here.

The article certainly altered the way I'll approach winter skin care. I honestly never thought the weather had anything to do with it. Is this going to change the way you wash for the next few months?

I've never suffered from serious acne, but I regularly suffer from breakouts around my mouth and chin. I tried various treatments, astringents and soap, but nothing really worked. Then I started shaving regularly. Once I altered my shaving routine, I was washing my face an extra two or three times per day. That greatly reduced the number of breakouts I had. In fact, when I do get pimples now, they're hardly breakouts; usually just an isolated one or two.

I use fresh razor blades whenever I shave and rinse them thoroughly. Avoid cheap shaving creams as they have no benefits for the skin. I have very oily skin, so I use an oil-free cream that still moisturizes. It's funny because I was raised by a man who bought whatever cream and blades were cheapest. But things are changing guys, think about the products you use to clean and maintain your body.

I'm not sure if there's too much to support my claims medically, but as you get older - I'm 23 - increasing your overall personal hygiene is the easiest way to combat acne in my opinion.