average temperatures las vegas by month
November Weather in Las Vegas 1 Average High Temperature in November in Las Vegas: 67 F (19.4 C). 2  Average Low Temperature in November in Las Vegas: 42 F (5.5 C). 3  Average Rainfall in November in Las Vegas: .43â. 4  Average Humidity in November in Las Vegas: 31%. - 45Â°F. 0.5. The highest average temperature in Las Vegas is July at 93.6 degrees. The coldest average temperature in Las Vegas is December at 45.4 degrees. The most monthly precipitation in Las Vegas occurs in February with 0.8 inches. The Las Vegas weather information is based on the average of the previous 3-7 years of data. Loading...