Average temperatures, rainfall and packing tips for Las Vegas, United States in January
January in Las Vegas is typically mild, with average daytime highs around 14°C and nights near 4°C. It is usually the coldest month of the year in Las Vegas.
Rainfall is light in January: roughly 20 mm across the whole month.
If your dates are flexible, the most comfortable months in Las Vegas are usually March and April.
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In January, Las Vegas averages a daytime high of about 14°C and a night-time low of around 4°C, based on recent historical data. That makes it the coldest month of the year there.
Rainfall is light in January: roughly 20 mm across the whole month.
January is a workable time to visit Las Vegas, with mild days - just pack accordingly. If your dates are flexible, the most comfortable months in Las Vegas are usually March and April.