December weather forecast
Mountainair, NM

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Weather in December

The first month of the winter, December, is still a chilly month in Mountainair, New Mexico, with temperature in the range of an average high of 46°F (7.8°C) and an average low of 28.9°F (-1.7°C).

Temperature

As November shifts into December, a slight alteration in temperatures is observed, with average highs reducing from a moderate 55.9°F (13.3°C) to a chilly 46°F (7.8°C). Mountainair encounters an average low-temperature of 28.9°F (-1.7°C) during December nights.

Humidity

In Mountainair, New Mexico, the average relative humidity in December is 56%.

Rainfall

In Mountainair, during December, the rain falls for 5.5 days and regularly aggregates up to 0.55" (14mm) of precipitation. Throughout the year, there are 78.7 rainfall days, and 6.73" (171mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall. December is the month with the most snowfall in Mountainair. Snow falls for 3.4 days and accumulates 1.61" (41mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 54min of daylight.
On the first day of the month, sunrise is at 6:54 am and sunset at 4:54 pm. On the last day of December, in Mountainair, New Mexico, sunrise is at 7:11 am and sunset at 5:05 pm MST.

Sunshine

The months with the least sunshine in Mountainair, New Mexico, are January and December, with an average of 7.2h of sunshine.

UV index

January, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.
Note: In December, the maximum UV index of 2 transforms into these recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
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Frequently asked questions

What is the usual temperature for Mountainair in December?

The average high-temperature, in December, in Mountainair, is 46°F (7.8°C), while the average low-temperature is 28.9°F (-1.7°C).

What is the average humidity in December in Mountainair?

In December, the average relative humidity is 56%.

How much does it rain in Mountainair in December?

In December, in Mountainair, New Mexico, the rain falls for 5.5 days. Throughout December, 0.55" (14mm) of precipitation is accumulated.

What is the snowiest month in Mountainair?

The month with the most snowfall is December, when snow falls for 3.4 days and typically aggregates up to 1.61" (41mm) of snow.

How much does it snow in Mountainair in December?

In Mountainair, New Mexico, during December, snow falls for 3.4 days and regularly aggregates up to 1.61" (41mm) of snow.

What is the month with the shortest days in Mountainair?

With an average of 9h and 54min of daylight, December has the shortest days of the year in Mountainair, New Mexico.

How many hours of daylight does Mountainair have in December?

In Mountainair, the average day length in December is 9h and 53min.

When is the sunrise / sunset in December in Mountainair?

On the first day of December in Mountainair, New Mexico, sunrise is at 6:54 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 5:05 pm MST.

What is the month with the least sunshine in Mountainair?

The months with the least sunshine are January and December, with an average of 7.2h of sunshine.

How long on average sun shines in December in Mountainair?

In December, the average sunshine duration in Mountainair is 7.2h.

What is the month with the lowest UV index in Mountainair?

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

What is the UV index intensity in December in Mountainair?

In Mountainair, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to 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
Mountainair, NM

Average temperature in December - Mountainair, NM
  • Average high temperature in December: 46°F

The warmest month (with the highest average high temperature) is June (88.9°F).
The month with the lowest average high temperature is January (45.7°F).

  • Average low temperature in December: 28.9°F

The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).

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Average pressure in December
Mountainair, NM

Average pressure in December - Mountainair, NM
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is April (29.88"Hg).

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Average wind speed in December
Mountainair, NM

Average wind speed in December - Mountainair, NM
  • Average wind speed in December: 6.5mph

The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

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Average humidity in December
Mountainair, NM

Average humidity in December - Mountainair, NM
  • Average humidity in December: 56%

The month with the highest relative humidity is January (58%).
The month with the lowest relative humidity is June (25%).

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Average rainfall in December
Mountainair, NM

Average rainfall in December - Mountainair, NM
  • Average rainfall in December: 0.55"

The wettest month (with the highest rainfall) is July (1.3").
The driest month (with the least rainfall) is March (0.24").

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Average rainfall days in December
Mountainair, NM

Average rainfall days in December - Mountainair, NM
  • Average rainfall days in December: 5.5 days

The month with the highest number of rainy days is July (13.5 days).
The month with the least rainy days is February (3.4 days).

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Average snowfall in December
Mountainair, NM

Average snowfall in December - Mountainair, NM
  • Average snowfall in December: 1.61"

The month with the highest snowfall is December (1.61").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in December
Mountainair, NM

Average snowfall days in December - Mountainair, NM
  • Average snowfall days in December: 3.4 days

The month with the highest number of snowfall days is December (3.4 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Mountainair, NM

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

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in December: 7h and 1min

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

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Average sunshine days in December
Mountainair, NM

Average sunshine days in December - Mountainair, NM
  • Average sunshine days in December: 23.8 days

The month with the most sunshine days is January (25.4 days).
The month with the least sunshine days is July (10.8 days).

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Average UV index in December
Mountainair, NM

Average UV index in December - Mountainair, NM
  • Average UV index in December: 2

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, November and December (UV index 2).

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Average cloud cover in December
Mountainair, NM

Average cloud cover in December - Mountainair, NM
  • Average cloud cover in December: 18

The month with the most cloud cover is December (Cloud cover 18).
The months with the least cloud cover are June and October (Cloud cover 10).

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Average visibility in December
Mountainair, NM

Average visibility in December - Mountainair, 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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Mountainair, New Mexico, USA

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