One of my oldest childhood friends was getting married in Keystone, Colorado this summer. I was so excited to attend the wedding and be part of her special day. I had no idea what to wear to Keystone Colorado during the summer. To my surprise, when looking for an Airbnb I kept reading that there was no air conditioning at any of the locations. Living in Paris for almost 3 years now I’ve become accustom to this, but in the US it is very common to have air conditioning everywhere you go. So I assumed that the temperature dropped at night which warranted no air conditioning in the apartment.