December weather forecastMancos, CO
December
Weather in December
December, the first month of the winter in Mancos, is also a wintry month, with temperature in the range of an average high of 37.2°F (2.9°C) and an average low of 21.7°F (-5.7°C).Temperature
The decrease of average high-temperatures is mild in December, with a decline from a frosty 49.5°F (9.7°C) in November to a wintry 37.2°F (2.9°C). The temperature dips to an average of 21.7°F (-5.7°C) during December nights.Humidity
The average relative humidity in December in Mancos is 67%.Rainfall
The months with the most rainfall in Mancos are January and December, with an average 1.26" (32mm) of precipitation.Snowfall
Months with snowfall in Mancos, Colorado, are January through April, October through December. In Mancos, in December, during 8.5 snowfall days, 7.44" (189mm) of snow is typically accumulated. Throughout the year, there are 34.4 snowfall days, and 29.29" (744mm) of snow is accumulated.Daylight
The month with the shortest days in Mancos is December, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 7:09 am and sunset at 4:55 pm. On the last day of December, sunrise is at 7:27 am and sunset at 5:05 pm MST.
Sunshine
The months with the least sunshine are January and December, with an average of 6.5h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Mancos, Colorado. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 2 during December translates into the following guidance:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mancos, CO
- Average high temperature in December: 37.2°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in December: 21.7°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in December
Mancos, CO
- Average pressure in December: 30.16"Hg
The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in December
Mancos, CO
- Average wind speed in December: 5.9mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is January (5.7mph).
Average humidity in December
Mancos, CO
- Average humidity in December: 67%
The month with the highest relative humidity is January (73%).
The month with the lowest relative humidity is June (26%).
Average rainfall in December
Mancos, CO
- Average rainfall in December: 1.26"
The wettest months (with the highest rainfall) are January and December (1.26").
The driest month (with the least rainfall) is June (0.2").
Average rainfall days in December
Mancos, CO
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is July (9.6 days).
The month with the least rainy days is June (2.8 days).
Average snowfall in December
Mancos, CO
- Average snowfall in December: 7.44"
The month with the highest snowfall is January (8.11").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Mancos, CO
- Average snowfall days in December: 8.5 days
The months with the highest number of snowfall days are January and December (8.5 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
Mancos, CO
- Average daylight in December: 9h and 36min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 6h and 30min
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: 6h and 30min).
Average sunshine days in December
Mancos, CO
- Average sunshine days in December: 19 days
The month with the most sunshine days is June (26.2 days).
The month with the least sunshine days is February (17.6 days).
Average UV index in December
Mancos, CO
- 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
Mancos, CO
- 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 9).
Average visibility in December
Mancos, CO
- 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).





