December weather forecast
Arch, NM

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Weather in December

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

Temperature

During the coldest month, December, temperatures average a high 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, in December, during 4.3 rainfall days, 0.43" (11mm) of precipitation is typically accumulated. Throughout the year, there are 86.6 rainfall days, and 11.77" (299mm) of precipitation is accumulated.

Snowfall

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

Daylight

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

UV index

With an average maximum UV index of 2, December is the month with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: An average UV index of 2 in December transforms into this advice:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Updated: Jul 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

The month of December sees the average lowest temperatures, reaching 50°F (10°C) at the peak and 31.1°F (-0.5°C) at the low.

What is the usual temperature for Arch in December?

December temperatures vary between a high-temperature of 50°F (10°C) and a low-temperature of 31.1°F (-0.5°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 82.4°F (28°C).

What is the most humid month?

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

What is the average humidity in December?

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

How much does it rain in December?

In Arch, during December, the rain falls for 4.3 days and regularly aggregates up to 0.43" (11mm) of precipitation.

How much does it snow in December?

In Arch, in December, during 3.5 snowfall days, 1.18" (30mm) 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 54min of daylight.

How many hours of daylight does Arch have in December?

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

When is the sunrise / sunset in December?

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

What are the months with the least sunshine?

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

How long on average sun shines in December?

In Arch, the average sunshine duration in December is 7h.

What is the month with the lowest UV index?

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

What is the UV index intensity in December in Arch?

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low health threat from unsafe 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
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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Arch, New Mexico, USA

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