Las Vegas Weather in January

January can bring some cool weather to Las Vegas, Nevada. The city usually gets frost on a few nights. But the midst of winter here doesn't mean cold and snow. Most days and nights this month remain well above freezing and snow is not at all expected.

This page gives detailed information on the typical January temperature, precipitation, sun, humidity, wind and storms for Las Vegas. 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 Weather iconTemperature

59 °F January average high 15 °C
41 °F January average low 5°C
15 days 60 °F max. or more (16 °C)
17 days 40 °F min. or less (4 °C)

Nearly every day in January warms to over 50 degrees Fahrenheit (10 degrees Celsius) in Las Vegas. The city averages 1 day this month when the thermometer reaches into the 70s °F (over 21 °C). Temperatures above 80 °F (27 °C) are not expected here during January.

Las Vegas can get frost in January. On average, the thermometer dips to 32 °F (0 °C) or below for 3 nights this month.

Rainy Weather iconRain

0.6 in total precipitation 14 mm
3 days of rain

Most years, Las Vegas gets less than 0.9 inches (22 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.

Sunny Weather iconSun

77 % sunshine
14 days clear skies

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.

Humid Weather iconHumidity

45 % January average humidity

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 Time1 am4 am7 am10 am1 pm4 pm7 pm10 pm
Humidity % 52 55 58 41 32 31 43 49

Windy Weather iconWind

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.

Stormy Weather iconStorms

2 days rainfall of 0.1 inches (2.5 mm) or more
0 days with thunderstorms in January

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


The weather data here are long-term averages provided by the US National Centers for Environmental Information (NCEI). Temperature and precipitation are 1991-2020 normals while humidity and thunderstorms are 1961-1990 normals.

Las Vegas Weather
Back to Top