December weather forecastArch, NM
December
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 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: 9h and 54min
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: 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: 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: 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: 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).
