January weather forecast and climate
Las Vegas, NV

A night aerial view of the Las Vegas strip in Nevada, USA
A night aerial view of the Las Vegas strip in Nevada, USA
January is a beautiful month in the mild winter of Las Vegas when the average high temperature is 58°F (14.4°C). Winter is chilly, with average lows at 39°F (3.9°C).
Sunshine is ample in the day, while the evenings see a quick drop in the mercury column after sunset. Las Vegas' high altitude keeps it cooler than other places in the desert. New Year mostly experiences low freezing temperatures during the night. Keep an eye on the snow-sprinkled Sierra Nevada mountain range - it is an amazing sight during the winter.
Wear a warm winter coat before hopping on the Strip for a night of clubbing in Sin City.
Average temperature in January - Las Vegas, NV
  • Average high temperature in January: 58°F

The warmest month (with the highest average high temperature) is July (104.2°F).
The month with the lowest average high temperature is December (56.6°F).

  • Average low temperature in January: 39.4°F

The month with the highest average low temperature is July (80.9°F).
The coldest month (with the lowest average low temperature) is December (38.7°F).

Average humidity in January - Las Vegas, NV
  • Average humidity in January: 45.1%

The month with the highest relative humidity is January (45.1%).
The month with the lowest relative humidity is June (16.5%).

Average rainfall in January - Las Vegas, NV
  • Average rainfall in January: 0.5"

The wettest month (with the highest rainfall) is February (0.8").
Driest months (with the lowest rainfall) are May and June (0.1").

Average rainfall days in January - Las Vegas, NV
  • Average rainfall days in January: 3.1 days

The month with the highest number of rainy days is February (4 days).
The month with the lowest number of rainy days is June (0.6 days).

Average daylight in January / Average sunshine in January - Las Vegas, NV
  • Average daylight in January: 10h

The month with the longest days is June (Average daylight: 14.6h).
The month with shortest days is December (Average daylight: 9.7h).

  • Average sunshine in January: 7.9h

The month with most sunshine is June (Average sunshine: 13.4h).
The month with least sunshine is December (Average sunshine: 7.6h).

Average UV index in January - Las Vegas, NV
  • Average UV index in January: 3

The month with the highest UV index is July (UV index 11).
The month with the lowest UV index is December (UV index 2).

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