The highest day temperature in January 2026 was 77°F. The lowest night temperature was 34°F. The average values for day and night temperatures during January were 64.5°F и 41.6°F respectivly.

Most of the days in January are sunny but you can also expect cloudy and gloomy days.

Precipitation total in January for Las Vegas is 0.3 in. This value is relatively stable throughout the year.

The average wind speed in January is 5.2 mph. It makes January one of the most windless months of the year for Las Vegas.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Las Vegas in January is 8.1 hours.