December weather forecast
Las Cruces, NM

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The lovely hilly countryside in Las Cruces, New Mexico
The lovely hilly countryside in Las Cruces, New Mexico

Weather in December

December in Las Cruces marks the peak of the winter season. Cooler temperatures dominate the weather, seamlessly blending from 37.4°F (3°C) to a milder 53.8°F (12.1°C). This period is noted for the least amount of rainfall and the advent of minimal snowfall. Despite it being winter, December carries the wow factor with its serene weather, crystalline skies, and mesmerising snow-hinted desert landscapes.

Temperature

As Las Cruces enters December, the average high-temperature decreases from the a refreshing 63.3°F (17.4°C) of November to a cool 53.8°F (12.1°C). The nights of December in Las Cruces anticipate an average low-temperature of 37.4°F (3°C).

Humidity

The most humid month is December, with an average relative humidity of 50%.

Rainfall

In Las Cruces, in December, it is raining for 4.2 days, with typically 0.47" (12mm) of accumulated precipitation. In Las Cruces, during the entire year, the rain falls for 84.4 days and collects up to 9.72" (247mm) of precipitation.

Snowfall

Months with snowfall are January, February, November and December. The month with the most snowfall is December, when snow falls for 1.1 days and typically aggregates up to 0.67" (17mm) of snow.

Daylight

With an average of 10h and 6min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 6:50 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:12 pm MST.

Sunshine

December has the least sunshine of the year, with an average of 7.1h of sunshine.

UV index

January, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 3 during December translates into the following directions:
Put precautions into practice - Guidance to elude sunburn is provided. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Updated: Jun 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Las Cruces in December?

Las Cruces in December has an average high-temperature of 53.8°F (12.1°C) and an average low-temperature of 37.4°F (3°C). The average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, in September is evaluated at 84.2°F (29°C).

What is the most humid month?

With an average relative humidity of 50%, December is the most humid month in Las Cruces.

What is the average humidity in December?

In Las Cruces, the average relative humidity in December is 50%.

How many days does it rain in December?

In Las Cruces, during December, the rain falls for 4.2 days and regularly aggregates up to 0.47" (12mm) of precipitation.

When does it snow the most?

The month with the most snowfall is December, when snow falls for 1.1 days and typically aggregates up to 0.67" (17mm) of snow.

How much does it snow in Las Cruces in December?

In December, it is snowing for 1.1 days. Throughout December, 0.67" (17mm) of snow is accumulated.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 10h and 6min of daylight.

What is the average length of the day in December?

In Las Cruces, the average day length in December is 10h and 4min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 6:50 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:12 pm MST.

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 7.1h of sunshine.

How long on average sun shines in December?

In Las Cruces, the average sunshine duration in December is 7.1h.

What is the month with the lowest UV index?

The months with the lowest UV index are January, November and December, with an average maximum UV index of 3.

How high is the UV index in December?

In Las Cruces, the average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Las Cruces, NM

Average temperature in December - Las Cruces, NM
  • Average high temperature in December: 53.8°F

The warmest month (with the highest average high temperature) is June (93.9°F).
The month with the lowest average high temperature is January (53.6°F).

  • Average low temperature in December: 37.4°F

The month with the highest average low temperature is July (73.8°F).
The coldest month (with the lowest average low temperature) is January (36.1°F).

Average pressure in December
Las Cruces, NM

Average pressure in December - Las Cruces, NM
  • Average pressure in December: 30.08"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

Average wind speed in December
Las Cruces, NM

Average wind speed in December - Las Cruces, NM
  • Average wind speed in December: 6.2mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is January (6mph).

Average humidity in December
Las Cruces, NM

Average humidity in December - Las Cruces, NM
  • Average humidity in December: 50%

The month with the highest relative humidity is December (50%).
The months with the lowest relative humidity are April and May (22%).

Average rainfall in December
Las Cruces, NM

Average rainfall in December - Las Cruces, NM
  • Average rainfall in December: 0.47"

The wettest month (with the highest rainfall) is July (2.28").
The driest month (with the least rainfall) is April (0.12").

Average rainfall days in December
Las Cruces, NM

Average rainfall days in December - Las Cruces, NM
  • Average rainfall days in December: 4.2 days

The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is May (2.8 days).

Average snowfall in December
Las Cruces, NM

Average snowfall in December - Las Cruces, NM
  • Average snowfall in December: 0.67"

The month with the highest snowfall is December (0.67").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").

Average snowfall days in December
Las Cruces, NM

Average snowfall days in December - Las Cruces, NM
  • Average snowfall days in December: 1.1 days

The month with the highest number of snowfall days is December (1.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Las Cruces, NM

Average daylight in December / Average sunshine in December - Las Cruces, NM
  • Average daylight in December: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in December: 7h and 1min

The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).

Average sunshine days in December
Las Cruces, NM

Average sunshine days in December - Las Cruces, NM
  • Average sunshine days in December: 25.4 days

The months with the most sunshine days are January and April (26.8 days).
The month with the least sunshine days is July (10.3 days).

Average UV index in December
Las Cruces, NM

Average UV index in December - Las Cruces, NM
  • Average UV index in December: 3

The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).

Average cloud cover in December
Las Cruces, NM

Average cloud cover in December - Las Cruces, NM
  • Average cloud cover in December: 18

The months with the most cloud cover are July and December (Cloud cover 18).
The month with the least cloud cover is May (Cloud cover 8).

Average visibility in December
Las Cruces, NM

Average visibility in December - Las Cruces, NM
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Las Cruces, New Mexico, USA

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