Las Vegas Weather Averages

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A desert climate dominates the weather for Las Vegas, Nevada. There's plenty of sun year round and often a month goes by with no rain at all.

The temperature here can soar to over 100 degrees Fahrenheit (38 °C) any time from May to September. But the rest of the year has pleasantly balmy conditions.

This page gives detailed information on the annual weather averages for Las Vegas. You can jump directly to data and descriptions for:

The numbers here are historical averages based on climate data gathered at the McCarran International Airport, located near the south end of the Las Vegas Strip.

temperature iconTemperature

80 °F annual average high 27 °C
59 °F annual average low 15 °C

Las Vegas' coldest days of the year usually occur in mid December when the daily maximum temperature averages 56 degrees Fahrenheit (13 degrees Celsius) and the minimum averages 38 °F (3 °C).

The year's hottest days are normally in mid July. The average temperature peaks then with daily highs of 105 °F (40 °C) and nighttime lows of 82 °F (28 °C).

131 days 90 °F maximum or above (32 °C)
52 days 40 °F minimum or below (4 °C)

Every day in Las Vegas has a maximum temperature of over 40 °F (4 °C). Las Vegas averages 70 days a year when the thermometer reaches into the 100s °F (over 37 °C). The 100-degree weather typically happens from May to September.

At night, the thermometer dips to 32 °F (0 °C) or below 8 times a year. Las Vegas can get as cold as 20 °F (-8 °C), but that occurs only about twice a decade. Even when it does freeze at night, it always becomes warm enough during the day to thaw everything.

precipitation iconPrecipitation

4.2 inches total yearly precipitation 106 millimetres
27 days of rain or snowfall

February is usually the wettest month of the year in Las Vegas, while June is the driest. Still, no month in this desert city averages more than an inch (25 mm) of precipitation.

snowfall iconSnow

0.3 inches total snowfall a year 0.8 centimetres
0.2 days with new snow

Las Vegas gets a little snow about every five years, usually in December or February. Only once a decade on average does the snow covering the ground accummulate to over an inch (2.5 cm).

sunshine iconSun

85 % sunshine annually
210 days with clear skies

The sun's rays reach the ground in Las Vegas during 85 percent of daylight hours on average year round, for a total of 3782 hours annually. Typically on 210 days a year the sky is mainly clear, with at most 30 percent cloud cover.

Sunlight in Las Vegas lasts for 12 hours and 11 minutes a day on average. The shortest days of the year in mid December have 9 hours and 42 minutes of daylight. The year's longest days in mid June last 14:37 from sunrise to sunset.

humidity iconHumidity

30 % average humidity

The annual average for relative humidity in Las Vegas ranges throughout the day from 40 percent at 4:00 am to 20 percent at 4:00 pm.

Local Time1 am4 am7 am10 am1 pm4 pm7 pm10 pm
Humidity % 36 40 39 27 21 20 27 32

wind iconWind

9.1 mph wind speed average 14.6 kph

April is usually the windiest month for Las Vegas, while the wind is calmest during December and January.

lightning cloud iconStorms

3 days precipitation of 0.5 inches (13 mm) or more
0 days snowfall of 1 inch (2.5 cm) or more
13 days with thunderstorms a year

Only twice a decade on average does Las Vegas have a storm that drenches the city in an inch (25 mm) or more of precipitation during a single day.

Snowstorms that produce over an inch of snow are not at all normal here.

Thunderstorms usually appear over Las Vegas from May to October. They are less common in spring and unusual in winter.

Reference

These weather data are long-term historical averages provided by the National Climatic Data Center of the United States. The temperature and precipitation numbers are 1981-2010 normals while the humidity and thunderstorm statistics are 1961-1990 normals.

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