Las Vegas
Nevada, USA
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
Las Vegas, NV

January, like December, in Las Vegas, Nevada, is a cool winter month, with temperature in the range of an average low of 38.5°F (3.6°C) and an average high of 51.8°F (11°C).

Temperature

In Las Vegas, Nevada, the average high-temperature is relatively the same as in December - a still cool 51.8°F (11°C). In January, the average low-temperature is 38.5°F (3.6°C).

Humidity

The most humid month is January, with an average relative humidity of 48%.

Rainfall

In Las Vegas, in January, during 4.5 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. In Las Vegas, during the entire year, the rain falls for 57.5 days and collects up to 6.02" (153mm) of precipitation.

Snowfall

Months with snowfall in Las Vegas are January, February and December. In Las Vegas, during 0.2 snowfall days, 0.04" (1mm) of snow is typically accumulated. Throughout the year, there are 0.7 snowfall days, and 0.24" (6mm) of snow is accumulated.

Daylight

The average length of the day in January is 10h.

Sunshine

In January, the average sunshine in Las Vegas is 7.2h.

UV index

In January, the average daily maximum UV index in Las Vegas is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to the Sun's UV rays for average individuals.
Note: In January, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in January in Las Vegas?

The average high-temperature, in January, in Las Vegas, Nevada, is 51.8°F (11°C), while the average low-temperature is 38.5°F (3.6°C).

What is the most humid month in Las Vegas?

The most humid month is January, with an average relative humidity of 48%.

What is the average humidity in January in Las Vegas?

In Las Vegas, Nevada, the average relative humidity in January is 48%.

How many days does it rain in January in Las Vegas?

In Las Vegas, in January, it is raining for 4.5 days, with typically 0.55" (14mm) of accumulated precipitation.

How many days does it snow in January in Las Vegas?

In Las Vegas, during January, snow falls for 0.2 days and regularly aggregates up to 0.04" (1mm) of snow.

What is the average length of the day in January in Las Vegas?

The average length of the day in January is 10h.

How long on average sun shines in January in Las Vegas?

The average sunshine in January in Las Vegas, Nevada, is 7.2h.

What is the UV index reading in January in Las Vegas?

The average daily maximum UV index in January in Las Vegas is 3. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe exposure to the Sun's UV rays.
Average temperature in January - Las Vegas, NV
  • Average high temperature in January: 51.8°F

The warmest month (with the highest average high temperature) is July (97.3°F).
The month with the lowest average high temperature is December (50°F).

  • Average low temperature in January: 38.5°F

The month with the highest average low temperature is July (77.7°F).
The coldest month (with the lowest average low temperature) is December (37.9°F).

Average humidity in January - Las Vegas, NV
  • Average humidity in January: 48%

The month with the highest relative humidity is January (48%).
The month with the lowest relative humidity is June (15%).

Average rainfall in January - Las Vegas, NV
  • Average rainfall in January: 0.55"

The wettest month (with the highest rainfall) is July (0.87").
The driest month (with the least rainfall) is June (0.08").

Average rainfall days in January - Las Vegas, NV
  • Average rainfall days in January: 4.5 days

The month with the highest number of rainy days is July (8.3 days).
The month with the least rainy days is June (1.4 days).

Average snowfall in January - Las Vegas, NV
  • Average snowfall in January: 0.04"

The month with the highest snowfall is February (0.16").
Months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in January - Las Vegas, NV
  • Average snowfall days in January: 0.2 days

The month with the highest number of snowfall days is February (0.3 days).
Months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 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 the shortest days is December (Average daylight: 9.7h).

  • Average sunshine in January: 7.2h

The month with the most sunshine is August (Average sunshine: 12.2h).
The month with the least sunshine is December (Average sunshine: 7.1h).

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

Months with the highest UV index are June and July (UV index 8).
The month with the lowest UV index is December (UV index 2).