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

December 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
December is the coldest month in Las Vegas and the start of the mild and chilly winter. Average highs are at a comfortable 57°F (13.9°C), but the average lows are at a chilly 38°F (3.3°C). Though snow is rare in Las Vegas, the mountain ranges around it accumulate it in moderate quantities.
December is the perfect time for an excursion in the hottest desert areas or skiing in the Spring Mountains. Be warned - Las Vegas is crowded with an influx of visitors in the winter, especially around New Year's Eve.
  • The average high temperature in December: 13.7°C

The warmest month (with the highest average high temperature) is July (40.1°C).
The month with the lowest average high temperature is December (13.7°C).

  • The average low temperature in December: 3.7°C

The month with the highest average low temperature is July (27.2°C).
The coldest month (with the lowest average low temperature) is December (3.7°C).

  • The average humidity in December: 45%

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

  • The average rainfall in December: 12.7mm

The wettest month (with the highest rainfall) is February (19.3mm).
The driest month (with the lowest rainfall) is June (1.8mm).

  • The average rainfall days in December: 3 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).

  • The average daylight in December: 10h

The month with the longest days is June (Average daylight: 15h).
Months with shortest days are January, November and December (Average daylight: 10h).

  • The average sunshine in December: 7.6h

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

  • The average UV index in December: 2

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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