December weather forecast
Casa Blanca, NM

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Weather in December

The first month of the winter, December, is also an icy month in Casa Blanca, New Mexico, with an average temperature varying between 23°F (-5°C) and 40.3°F (4.6°C).

Temperature

As Casa Blanca enters December, the average high-temperature decreases from the a cool 51.4°F (10.8°C) of November to an icy 40.3°F (4.6°C). Throughout December, the temperature falls to an average low of 23°F (-5°C).

Humidity

In December, the average relative humidity is 64%.

Rainfall

In Casa Blanca, New Mexico, in December, during 4.1 rainfall days, 0.63" (16mm) of precipitation is typically accumulated. In Casa Blanca, during the entire year, the rain falls for 85.5 days and collects up to 9.37" (238mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In December, in Casa Blanca, it is snowing for 6.1 days. Throughout December, 3.11" (79mm) of snow is accumulated. In Casa Blanca, during the entire year, snow falls for 25.4 days and aggregates up to 13.15" (334mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 48min of daylight.
On the first day of December, sunrise is at 7:00 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:08 pm MST.

Sunshine

The average sunshine in December is 6.9h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the average person.
Note: The UV index of 2 during December leads to these advisories:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.

Frequently asked questions

Is it cold during December?

During December, Casa Blanca experiences an average high-temperature of 40.3°F (4.6°C) and a low-temperature of 23°F (-5°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in July is estimated at 80.6°F (27°C).

What is the average humidity in December?

In December, the average relative humidity in Casa Blanca is 64%.

How many days does it rain in December?

In December, the rain falls for 4.1 days. Throughout December, 0.63" (16mm) of precipitation is accumulated.

How many days does it snow in December?

In Casa Blanca, in December, during 6.1 snowfall days, 3.11" (79mm) of snow is typically accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 48min of daylight.

How many hours of daylight does Casa Blanca have in December?

In December, the average day length is 9h and 51min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:00 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:08 pm MST.

How many hours of sunshine does Casa Blanca have in December?

The average sunshine duration in December is 6.9h.

What are the months with the lowest UV index?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

How high is the UV index in December?

In Casa Blanca, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability 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
Casa Blanca, NM

Average temperature in December - Casa Blanca, NM
  • Average high temperature in December: 40.3°F

The warmest month (with the highest average high temperature) is June (81°F).
The month with the lowest average high temperature is January (38.7°F).

  • Average low temperature in December: 23°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).

Average pressure in December
Casa Blanca, NM

Average pressure in December - Casa Blanca, NM
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.18"Hg).
The months with the lowest atmospheric pressure are April, May and June (29.89"Hg).

Average wind speed in December
Casa Blanca, NM

Average wind speed in December - Casa Blanca, NM
  • Average wind speed in December: 8.4mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

Average humidity in December
Casa Blanca, NM

Average humidity in December - Casa Blanca, NM
  • Average humidity in December: 64%

The month with the highest relative humidity is January (69%).
The month with the lowest relative humidity is June (26%).

Average rainfall in December
Casa Blanca, NM

Average rainfall in December - Casa Blanca, NM
  • Average rainfall in December: 0.63"

The wettest month (with the highest rainfall) is July (1.77").
The driest month (with the least rainfall) is November (0.35").

Average rainfall days in December
Casa Blanca, NM

Average rainfall days in December - Casa Blanca, NM
  • Average rainfall days in December: 4.1 days

The month with the highest number of rainy days is August (15.3 days).
The month with the least rainy days is February (2.5 days).

Average snowfall in December
Casa Blanca, NM

Average snowfall in December - Casa Blanca, NM
  • Average snowfall in December: 3.11"

The month with the highest snowfall is January (4.09").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Casa Blanca, NM

Average snowfall days in December - Casa Blanca, NM
  • Average snowfall days in December: 6.1 days

The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Casa Blanca, NM

Average daylight in December / Average sunshine in December - Casa Blanca, NM
  • Average daylight in December: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in December: 6h and 5min

The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 48min).

Average sunshine days in December
Casa Blanca, NM

Average sunshine days in December - Casa Blanca, NM
  • Average sunshine days in December: 22.3 days

The month with the most sunshine days is November (24.5 days).
The month with the least sunshine days is August (10.5 days).

Average UV index in December
Casa Blanca, NM

Average UV index in December - Casa Blanca, NM
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Casa Blanca, NM

Average cloud cover in December - Casa Blanca, NM
  • Average cloud cover in December: 24

The month with the most cloud cover is January (Cloud cover 25).
The months with the least cloud cover are June and October (Cloud cover 12).

Average visibility in December
Casa Blanca, NM

Average visibility in December - Casa Blanca, 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).

Casa Blanca, New Mexico, USA

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