Dress appropriately: wear a jacket, a winter hat, a scarf and gloves just to be sure you’ll be warm and cozy. The average low on New Year’s Eve is 39 degrees Fahrenheit, but it can get even colder than that. It’s Vegas, right? But late December weather in Las Vegas gets surprisingly chilly, and you don’t want that to ruin your night. We put together these quick tips so that you can have the best possible New Year’s Eve in Vegas. 7 Tips for Enjoying New Year’s in Las Vegas