This report describes the typical weather at the North Las Vegas Airport (Las Vegas, Nevada, United States) weather station over the course of an average October. It is based on the historical records from 1999 to 2012. Earlier records are either unavailable or unreliable.
Las Vegas, Nevada has a hot desert climate. The area within 25 mi of this station is covered by shrublands (94%) and built-up areas (4%).
The month of October is characterized by rapidly falling daily high temperatures, with daily highs decreasing from 87°F to 73°F over the course of the month, exceeding 95°F or dropping below 63°F only one day in ten.
Over the course of October, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 1:06 hours, implying an average day-over-day decrease of 2.1 minutes.
The shortest day of the month is October 31 with 10:41 hours of daylight; the longest day is October 1 with 11:47 hours of daylight.
The earliest sunrise is at 6:36am on October 1; the latest sunset is at 6:23pm on October 1; the latest sunrise is at 7:04am on October 31; the earliest sunset is at 5:45pm on October 31.
Daylight savings time is observed in 2012 but it neither starts nor ends in October, so the entire month is in daylight time.
The median cloud cover is 0% (clear) and does not vary substantially over the course of the month.
On October 16, a representative day, the sky is clear or mostly clear 90% of the time, partly cloudy 2% of the time, and mostly cloudy or overcast 6% of the time.
The average probability that some form of precipitation will be observed in a given day is 7%, with little variation over the course of the month.
Throughout October, the most common forms of precipitation are light rain, thunderstorms, and moderate rain.
Light rain is the most severe precipitation observed during 50% of those days with precipitation. It is most likely around October 3, when it is observed during 4% of all days.
Thunderstorms are the most severe precipitation observed during 26% of those days with precipitation. They are most likely around October 1, when it is observed during 3% of all days.
Moderate rain is the most severe precipitation observed during 21% of those days with precipitation. It is most likely around October 31, when it is observed during 2% of all days.
Either snow is exceptionally unlikely to fall at this location in October or this station does not reliably report precipitation types.
The relative humidity typically ranges from 15% (dry) to 49% (comfortable) over the course of a typical October, rarely dropping below 8% (very dry), or exceeding 74% (humid).
The air is driest around October 1, at which time the relative humidity drops below 19% (dry) three days out of four; it is most humid around October 31, rising above 36% (comfortable) three days out of four.
Dew point is often a better measure of how comfortable a person will find the weather than relative humidity because it more directly relates to whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid.
Over the course of a typical October, the dew point typically varies from 24°F (dry) to 42°F (dry) and is rarely below 10°F (dry) or above 54°F (very comfortable).
Over the course of October typical wind speeds vary from 0 mph to 14 mph (calm to moderate breeze), rarely exceeding 22 mph (fresh breeze).
The highest average wind speed of 7 mph (light breeze) occurs around October 1, at which time the average daily maximum wind speed is 14 mph (moderate breeze).
The lowest average wind speed of 6 mph (light breeze) occurs around October 31, at which time the average daily maximum wind speed is 12 mph (gentle breeze).