The September record for amount of precipitation in one day in Las Vegas is 1. In one day. On average, there are 3. Each convention brings over 40, attendees to Las Vegas. Universe competition. This event draws an amazing 30, visitors to the area. Weather in Las Vegas in September is still hot, with an average daily high of 94 degrees. The month with the most cloud cover is December Cloud cover Months with the least cloud cover are June and August Cloud cover 6.
Nevada, USA: September weather forecast and climate Las Vegas , NV. Weather in September The first month of the autumn, September , is still a hot month in Las Vegas , Nevada , with temperature in the range of an average low of Temperature In Las Vegas, the average high-temperature slightly decreases, from a sweltering The average low-temperature, in Las Vegas, is Rainfall In September, in Las Vegas, the rain falls for 5. Throughout September, 0. In Las Vegas, during the entire year, the rain falls for Snowfall March through November are months without snowfall.
Daylight The average length of the day in Las Vegas is Sunshine The average sunshine in Las Vegas is A UV Index reading of 6 to 7 represents a high health risk from the exposure to the Sun's UV radiation for average individuals. Note : In September, the average maximum UV index of 6 translate into the following recommendations: Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required.
The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day. A wet day is one with at least 0. To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding day period centered around each day.
The average sliding day rainfall during September in Las Vegas is essentially constant , remaining about 0. Over the course of September in Las Vegas, the length of the day is rapidly decreasing. From the start to the end of the month, the length of the day decreases by 1 hour, 5 minutes , implying an average daily decrease of 2 minutes, 15 seconds , and weekly decrease of 15 minutes, 47 seconds.
The shortest day of the month is September 30 , with 11 hours, 50 minutes of daylight and the longest day is September 1 , with 12 hours, 55 minutes of daylight. Daylight saving time is observed in Las Vegas during , but it neither starts nor ends during September, so the entire month is in daylight saving time. For reference, on June 21 , the longest day of the year, the Sun rises at AM and sets 14 hours, 37 minutes later, at PM , while on December 21 , the shortest day of the year, it rises at AM and sets 9 hours, 42 minutes later, at PM.
The figure below presents a compact representation of key lunar data for September The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon.
The vertical gray bars new Moons and blue bars full Moons indicate key Moon phases. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.
We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.
This section discusses the wide-area hourly average wind vector speed and direction at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.
The average hourly wind speed in Las Vegas is essentially constant during September, remaining within 0. For reference, on April 26 , the windiest day of the year, the daily average wind speed is 9. The wind direction in Las Vegas during September is predominantly out of the south from September 1 to September 25 and the north from September 25 to September The growing season in Las Vegas typically lasts for 11 months days , from around January 24 to around December 8 , rarely starting after February 20 , or ending before November Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature.
This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation. The average daily incident shortwave solar energy in Las Vegas is decreasing during September, falling by 1.
For the purposes of this report, the geographical coordinates of Las Vegas are The topography within 2 miles of Las Vegas contains only modest variations in elevation, with a maximum elevation change of feet and an average elevation above sea level of 1, feet.
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