las vegas weather january 2020

Las Vegas Weather in January

0.5 in total precipitation 14 mm
3 days of rain

Most years, Las Vegas gets less than 0.7 inches (17 mm) of rain in January. About once every four years, the city receives no rain at all this month. None of the precipitation normally falls as snow.

The sun’s rays reach the ground in Las Vegas during 77 percent of daylight hours on average in January, for a total of 239 hours in the month. Typically on 14 days this month the sky is mainly clear, with at most 30 percent cloud cover.

Sunlight in January at Las Vegas lasts for 10 hours and 2 minutes a day on average. The shortest day of the month is the 1st with 9 hours and 45 minutes of daylight. By the end of the month, the days have lengthened to 10:24 from sunrise to sunset. These durations can vary by a minute or two from year to year.


The relative humidity in Las Vegas during January usually peaks at 58 percent in the morning then drops to 31 percent around mid afternoon. January is the city’s most humid month.

Local Time 1 am 4 am 7 am 10 am 1 pm 4 pm 7 pm 10 pm
Humidity % 52 55 58 41 32 31 43 49

7.3 mph January wind speed average 11.7 kph

January’s average wind speed is one of the lowest for the year in Las Vegas.


Once every few years, Las Vegas can get up to an inch (25 mm) of rain in one day during January.


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.

Typical weather for Las Vegas, Nevada in January. Climate data for average temperature, precipitation, sun, humidity, wind and storms.

Monthly weather forecast and climate
Las Vegas , NV

  • The climate of Las Vegas, NV
  • The best time to visit Las Vegas, NV
  • The worst time to visit Las Vegas, NV
  • Weather hazards
  • Weather in January
  • Weather in February
  • Weather in March
  • Weather in April
  • Weather in May
  • Weather in June
  • Weather in July
  • Weather in August
  • Weather in September
  • Weather in October
  • Weather in November
  • Weather in December
  • Frequently asked questions
  • Average temperature
  • Average humidity
  • Average rainfall
  • Average rainfall days
  • Average daylight
  • Average sunshine
  • Average UV index

The climate of Las Vegas, NV

Las Vegas has a subtropical hot desert type of climate (Köppen climate classification BWh) with long, hot summers and short, mild winters. Las Vegas, popularly known as Vegas, lies in the Mojave Desert with towering mountain ranges on all sides. The mountain peaks with their rocky terrain act as natural barriers to the flow of moisture from the surrounding areas and influence the arid climate.

Las Vegas has ample sunshine throughout the year, with an average of 310 sunny days annually. Average daily high temperatures reach an astonishing 105°F (40.6°C) in the peak summer, while average low temperatures in the peak winter drop to a chilly 38°F (3.3°C). The difference between daily highs and lows are in the extreme range of 25 to 30 degrees. Snow accumulates in the mountain ranges surrounding Las Vegas during the winter.

Rainfall is scanty to the tune of 4.2″ (106.7mm) annually. With an average of 26 rainy days during the entire year, Las Vegas is one of the driest places in North America.

Monthly weather forecast and climate for Las Vegas, Nevada. Las Vegas has a subtropical hot desert type of climate (Köppen climate classification BWh) with long, hot summers and short, mild winters. ]]>