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

Las Cruces observes a minor decrease in the average high-temperature with the arrival of December, falling from November's comfortable 63.3°F (17.4°C) to a cool 53.8°F (12.1°C). December nights in Las Cruces, New Mexico, are marked by an average temperature drop to a wintry 37.4°F (3°C).

Humidity

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

Rainfall

In Las Cruces, during December, the rain falls for 4.2 days and regularly aggregates up to 0.47" (12mm) of precipitation. Throughout the year, there are 84.4 rainfall days, and 9.72" (247mm) of precipitation is accumulated.

Snowfall

January, February, November and December are months with snowfall in Las Cruces, New Mexico. The month with the most snowfall in Las Cruces 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 the month, sunrise is at 6:50 am and sunset at 5:01 pm. On the last day of December, in Las Cruces, New Mexico, sunrise is at 7:08 am and sunset at 5:12 pm MST.

Sunshine

With an average of 7.1h of sunshine, December has the least sunshine of the year in Las Cruces.

UV index

January, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Las Cruces, New Mexico. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.
Note: In December, a regular UV index of 3 translates into these guidelines:
Undertake protective steps - Preventing sun damage is advised. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What is the usual temperature for Las Cruces in December?

In Las Cruces, in December, the average high-temperature is 53.8°F (12.1°C), and the average low-temperature is 37.4°F (3°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in September is computed to be 84.2°F (29°C).

What is the most humid month in Las Cruces?

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

What is the average humidity in December in Las Cruces?

The average relative humidity in December in Las Cruces, New Mexico, is 50%.

How many days does it rain in December in Las Cruces?

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

What is the snowiest month in Las Cruces?

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

How many days does it snow in December in Las Cruces?

In Las Cruces, New Mexico, in December, snow falls for 1.1 days, with typically accumulated 0.67" (17mm) of snow.

What is the month with the shortest days in Las Cruces?

The month with the shortest days in Las Cruces, New Mexico, is December, with an average of 10h and 6min of daylight.

What is the average length of the day in December in Las Cruces?

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

When is the sunrise / sunset in December in Las Cruces?

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

What is the month with the least sunshine in Las Cruces?

With an average of 7.1h of sunshine, December has the least sunshine of the year in Las Cruces, New Mexico.

How many hours of sunshine does Las Cruces have in December?

The average sunshine duration in December is 7.1h.

When is the lowest UV index in Las Cruces?

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

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 vulnerability from exposure to the Sun's UV radiation.
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).

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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).

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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).

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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%).

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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").

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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).

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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").

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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).

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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).

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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).

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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).

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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).

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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).

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Las Cruces, New Mexico, USA

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