December weather forecast
Arch, NM

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Weather in December

The first month of the winter, December, is also a fresh month in Arch, New Mexico, with an average temperature ranging between min 31.1°F (-0.5°C) and max 50°F (10°C).

Temperature

December, on average, is the coldest month, registering a high temperature of 50°F (10°C) and a low of 31.1°F (-0.5°C).

Humidity

The most humid month is December, with an average relative humidity of 54%.

Rainfall

In Arch, during December, the rain falls for 4.3 days and regularly aggregates up to 0.43" (11mm) of precipitation. Throughout the year, in Arch, there are 86.6 rainfall days, and 11.77" (299mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall in Arch. In Arch, during December, snow falls for 3.5 days and regularly aggregates up to 1.18" (30mm) of snow. Throughout the year, there are 12.8 snowfall days, and 5.79" (147mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Arch, with an average of 9h and 54min of daylight.
On the first day of the month, sunrise is at 6:40 am and sunset at 4:43 pm. On the last day of December, sunrise is at 6:58 am and sunset at 4:53 pm MST.

Sunshine

January, February and December, with an average of 7h of sunshine, are months with the least sunshine in Arch, New Mexico.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum UV index of 2 during December translates into these guidelines:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Avoiding the Sun during its peak radiation time around midday is a healthy practice. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
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Frequently asked questions

What month is the coldest in Arch?

Temperature readings in Arch, New Mexico, reach their annual highs in December, averaging 50°F (10°C) and a minimum average of 31.1°F (-0.5°C).

What is the temperature in December in Arch?

An average high-temperature, in December, in Arch, is 50°F (10°C) and the average low-temperature is 31.1°F (-0.5°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in September is computed to be 82.4°F (28°C).

What is the most humid month in Arch?

With an average relative humidity of 54%, December is the most humid month in Arch, New Mexico.

What is the average humidity in December in Arch?

In Arch, the average relative humidity in December is 54%.

How many days does it rain in December in Arch?

In December, the rain falls for 4.3 days. Throughout December, 0.43" (11mm) of precipitation is accumulated.

How many days does it snow in December in Arch?

In December, in Arch, New Mexico, it is snowing for 3.5 days. Throughout December, 1.18" (30mm) of snow is accumulated.

What is the month with the shortest days in Arch?

The month with the shortest days in Arch is December, with an average of 9h and 54min of daylight.

What is the average length of the day in December in Arch?

In December, the average day length in Arch is 9h and 55min.

When are sunrise and sunset in December in Arch?

In December, on the first day of the month, sunrise is at 6:40 am and sunset at 4:43 pm. On the last day of the month, in Arch, sunrise is at 6:58 am and sunset at 4:53 pm MST.

What is the month with the least sunshine in Arch?

January, February and December, with an average of 7h of sunshine, are months with the least sunshine in Arch.

How many hours of sunshine does Arch have in December?

The average sunshine duration in December in Arch, New Mexico, is 7h.

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

The month with the lowest UV index is December, with an average maximum UV index of 2.

What is the UV index intensity in December in Arch?

The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health risk 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
Arch, NM

Average temperature in December - Arch, NM
  • Average high temperature in December: 50°F

The warmest month (with the highest average high temperature) is June (90.7°F).
The month with the lowest average high temperature is December (50°F).

  • Average low temperature in December: 31.1°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is December (31.1°F).

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Average pressure in December
Arch, NM

Average pressure in December - Arch, NM
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed in December
Arch, NM

Average wind speed in December - Arch, NM
  • Average wind speed in December: 11.6mph

The windiest month (with the highest average wind speed) is April (13.3mph).
The calmest month (with the lowest average wind speed) is August (9.9mph).

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Average humidity in December
Arch, NM

Average humidity in December - Arch, NM
  • Average humidity in December: 54%

The month with the highest relative humidity is December (54%).
The month with the lowest relative humidity is April (34%).

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Average rainfall in December
Arch, NM

Average rainfall in December - Arch, NM
  • Average rainfall in December: 0.43"

The wettest month (with the highest rainfall) is October (1.81").
The driest month (with the least rainfall) is November (0.28").

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Average rainfall days in December
Arch, NM

Average rainfall days in December - Arch, NM
  • Average rainfall days in December: 4.3 days

The month with the highest number of rainy days is July (12.9 days).
The month with the least rainy days is November (2.6 days).

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Average snowfall in December
Arch, NM

Average snowfall in December - Arch, NM
  • Average snowfall in December: 1.18"

The months with the highest snowfall are January and February (1.34").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Arch, NM

Average snowfall days in December - Arch, NM
  • Average snowfall days in December: 3.5 days

The month with the highest number of snowfall days is December (3.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Arch, 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 0min

The month with the most sunshine is June (Average sunshine: 11h and 54min).
The months with the least sunshine are January, February and December (Average sunshine: 7h and 0min).

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Average sunshine days in December
Arch, NM

Average sunshine days in December - Arch, NM
  • Average sunshine days in December: 23.7 days

The month with the most sunshine days is January (26.4 days).
The month with the least sunshine days is August (14 days).

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Average UV index in December
Arch, NM

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

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

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Average cloud cover in December
Arch, NM

Average cloud cover in December - Arch, NM
  • Average cloud cover in December: 21

The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 13).

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Average visibility in December
Arch, NM

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

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