December weather forecastMountainair, NM
December
Weather in December
December, the first month of the winter in Mountainair, is still a chilly month, with an average temperature fluctuating between 46°F (7.8°C) and 28.9°F (-1.7°C).Temperature
In December, the average high-temperature goes from a moderate 55.9°F (13.3°C) in November to a frosty 46°F (7.8°C). Mountainair's average low-temperature during December nights is observed to be a subzero cold 28.9°F (-1.7°C).Humidity
In Mountainair, the average relative humidity in December is 56%.Rainfall
In Mountainair, in December, it is raining for 5.5 days, with typically 0.55" (14mm) of accumulated precipitation. In Mountainair, during the entire year, the rain falls for 78.7 days and collects up to 6.73" (171mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Mountainair. December is the month with the most snowfall. 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, sunrise is at 7:11 am and sunset at 5:05 pm MST.
Sunshine
The months with the least sunshine are January and December, with an average of 7.2h of sunshine.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, a daily UV index of 2 turns into the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
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).
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).
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%).
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").
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).
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").
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).
Average daylight in December /
Average sunshine in December
Mountainair, 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 12min
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).
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).
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).
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).
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).
