Low humidity along with ideal spring and fall temperatures make Las Vegas a great place to visit any time of the year. The average year round temperature is 80 degrees. Las Vegas is one of the sunniest cities in the United States, with an average 320 days of sunshine per year and only 4.19 inches of rainfall. 

Because of its high desert elevation (2174 feet above sea level), the temperature range can be extreme. During the summer, daytime temperatures often reach 100 degrees. In the winter, the temperature may drop as low as 33 degrees, although the average high is between 50-60 degrees. It rarely falls below freezing in Las Vegas. When it does, it is usually only in the early morning. 

You can enjoy a wide variety of sports year round. Though the winter weather is less dependable than the spring or fall, the winter months are generally pleasant and well suited to outdoor activities. For example, you can water ski on Lake Mead in the morning and snow ski at Lee Canyon in the afternoon. 

From mid-May to mid-September, when the heat is most intense, you can swim, sun bathe, sail or water ski. Just make sure you have plenty of sun screen and a hat. It´s also an ideal time to head for Mt Charleston where the average temperature is 20-25 degrees cooler than Las Vegas.

Average daily high and low temperatures by month: