December weather forecastBlack Rock, NM
December
Weather in December
The first month of the winter, December, is still a cold month in Black Rock, New Mexico, with an average temperature varying between 24.4°F (-4.2°C) and 41.9°F (5.5°C).Temperature
December's arrival correlates with a reduction in the average high-temperature, down from a cool 52.9°F (11.6°C) in November to a cold 41.9°F (5.5°C). In December, the temperature drops to an average of 24.4°F (-4.2°C) at night.Humidity
In December, the average relative humidity is 64%.Rainfall
In Black Rock, in December, during 4.8 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. In Black Rock, during the entire year, the rain falls for 78.6 days and collects up to 9.76" (248mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Black Rock, New Mexico, in December, snow falls for 7.3 days, with typically accumulated 4.06" (103mm) of snow. In Black Rock, during the entire year, snow falls for 30.1 days and aggregates up to 17.76" (451mm) of snow.Daylight
The month with the shortest days in Black Rock is December, with an average of 9h and 48min of daylight.On the first day of the month, sunrise is at 7:05 am and sunset at 5:03 pm. On the last day of December, sunrise is at 7:23 am and sunset at 5:13 pm MST.
Sunshine
The months with the least sunshine are January and December, with an average of 6.6h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: An average UV index of 2 in December transforms into this advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Black Rock, NM
- Average high temperature in December: 41.9°F
The warmest month (with the highest average high temperature) is June (82.8°F).
The month with the lowest average high temperature is January (40.5°F).
- Average low temperature in December: 24.4°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in December
Black Rock, NM
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The months with the lowest atmospheric pressure are May and June (29.88"Hg).
Average wind speed in December
Black Rock, NM
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is January (7mph).
Average humidity in December
Black Rock, NM
- Average humidity in December: 64%
The month with the highest relative humidity is January (69%).
The month with the lowest relative humidity is June (24%).
Average rainfall in December
Black Rock, NM
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is August (1.34").
The driest month (with the least rainfall) is June (0.28").
Average rainfall days in December
Black Rock, NM
- Average rainfall days in December: 4.8 days
The month with the highest number of rainy days is July (12 days).
The month with the least rainy days is November (3.7 days).
Average snowfall in December
Black Rock, NM
- Average snowfall in December: 4.06"
The month with the highest snowfall is January (5.31").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Black Rock, NM
- Average snowfall days in December: 7.3 days
The months with the highest number of snowfall days are January and December (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Black Rock, NM
- Average daylight in December: 9h and 48min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 6h and 36min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 6h and 36min).
Average sunshine days in December
Black Rock, NM
- Average sunshine days in December: 21.1 days
The month with the most sunshine days is June (25.1 days).
The month with the least sunshine days is July (15.2 days).
Average UV index in December
Black Rock, NM
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Black Rock, NM
- Average cloud cover in December: 27
The months with the most cloud cover are January and December (Cloud cover 27).
The month with the least cloud cover is June (Cloud cover 10).
Average visibility in December
Black Rock, 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).
