Weather By Day

September Weather In Las Vegas  
September Las Vegas Weather
Record High: 113°F
Normal High: 94°F
Normal Low: 69°F
Record Low: 43°F
Avg Monthly Rain: 0.31"
Rec 1 Day Rain: 1.09"

Las Vegas Weather In September

The highest recorded temperature in September for Las Vegas for the past 62 years was 113 degrees Fahrenheit, measured on September 1, 1950, and the mean high is 94. The lowest documented temperature in September for Las Vegas for the past 62 years was 43 most recently measured on September 27, 1948, while the average low temperature is 69.

US National Weather Service historical Las Vegas September Weather data records that on September 17, 1965, the high temperature did not exceed 67 degrees Fahrenheit, the lowest high measured in Las Vegas in the past 62 years. NWS weather data additionally shows that on September 2, 2007, the lowest recorded temperature on that day did not drop below 86 degrees, the highest low measured in Las Vegas in the last 62 years.

Historical weather data accumulated by the National Weather Service shows that the average daily high temperature in Las Vegas on September First is 100 degrees Fahrenheit and the average high on the last day of September is 90 degrees. The low temperature in Las Vegas in September on the first day of the month averages 71 degrees and the low temperature on the last day of the month averages 61 degrees.

Las Vegas usually receives an average of 0.31 inches of precipitation during September. September Las Vegas Weather records show that on September 25, 1939 Las Vegas received 1.09 inches of rain, the most rain measured in a single day in September.