December weather forecastCotopaxi, CO
December
Weather in December
December, the first month of the winter in Cotopaxi, is still a freezing cold month, with an average temperature fluctuating between 31.6°F (-0.2°C) and 11.5°F (-11.4°C).Temperature
Cotopaxi's progression into December includes a drop in the average high-temperature, from a frosty 42.8°F (6°C) in November to a freezing cold 31.6°F (-0.2°C). The average low-temperature during December nights is a frigid cold 11.5°F (-11.4°C).Humidity
In December, the average relative humidity in Cotopaxi, Colorado, is 74%.Rainfall
In December, the rain falls for 1.4 days. Throughout December, 0.31" (8mm) of precipitation is accumulated. In Cotopaxi, during the entire year, the rain falls for 58.1 days and collects up to 5.83" (148mm) of precipitation.Snowfall
January through June, October through December are months with snowfall. In Cotopaxi, during December, snow falls for 7.1 days and regularly aggregates up to 2.68" (68mm) of snow. In Cotopaxi, during the entire year, snow falls for 42.8 days and aggregates up to 19.09" (485mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:01 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:52 pm MST.
Sunshine
In Cotopaxi, the average sunshine in December is 6.7h.UV index
The months with the lowest UV index are January through March, October through 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 the ordinary person.Note: A daily high UV index of 2 in December leads to these guidelines:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Caution! The reflection of snow can nearly 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
Cotopaxi, CO
- Average high temperature in December: 31.6°F
The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in December: 11.5°F
The month with the highest average low temperature is July (47.5°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).
Average pressure in December
Cotopaxi, CO
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is April (29.93"Hg).
Average wind speed in December
Cotopaxi, CO
- Average wind speed in December: 7mph
The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in December
Cotopaxi, CO
- Average humidity in December: 74%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is June (41%).
Average rainfall in December
Cotopaxi, CO
- Average rainfall in December: 0.31"
The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is January (0.2").
Average rainfall days in December
Cotopaxi, CO
- Average rainfall days in December: 1.4 days
The month with the highest number of rainy days is July (12.9 days).
The month with the least rainy days is November (1.2 days).
Average snowfall in December
Cotopaxi, CO
- Average snowfall in December: 2.68"
The month with the highest snowfall is February (3.43").
The months with the least snowfall are July, August and September (0").
Average snowfall days in December
Cotopaxi, CO
- Average snowfall days in December: 7.1 days
The month with the highest number of snowfall days is February (7.6 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Cotopaxi, CO
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 6h and 42min
The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is February (Average sunshine: 6h and 36min).
Average sunshine days in December
Cotopaxi, CO
- Average sunshine days in December: 24.2 days
The month with the most sunshine days is November (25.5 days).
The month with the least sunshine days is July (15.6 days).
Average UV index in December
Cotopaxi, CO
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Cotopaxi, CO
- Average cloud cover in December: 29
The month with the most cloud cover is February (Cloud cover 32).
The month with the least cloud cover is June (Cloud cover 15).
Average visibility in December
Cotopaxi, CO
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).





