December weather forecastSunbeam, CO
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Sunbeam, Colorado, with an average temperature fluctuating between 12.7°F (-10.7°C) and 28.9°F (-1.7°C).Temperature
Sunbeam observes a minor decrease in the average high-temperature with the arrival of December, falling from November's wintry 41.4°F (5.2°C) to a subzero cold 28.9°F (-1.7°C). Sunbeam, during the month of December, experiences an average low-temperature of 12.7°F (-10.7°C).Humidity
In December, the average relative humidity is 80%.Rainfall
In December, the rain falls for 3.5 days. Throughout December, 0.91" (23mm) of precipitation is accumulated. In Sunbeam, during the entire year, the rain falls for 76.8 days and collects up to 9.88" (251mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. December is the month with the most snowfall. Snow falls for 11.9 days and accumulates 7.28" (185mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:17 am and sunset at 4:46 pm. On the last day of December, sunrise is at 7:36 am and sunset at 4:56 pm MST.
Sunshine
In December, the average sunshine is 6h.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 reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The daily maximum UV index of 2 in December interprets into the following advice:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sunbeam, CO
- Average high temperature in December: 28.9°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in December: 12.7°F
The month with the highest average low temperature is July (51.8°F).
The coldest month (with the lowest average low temperature) is January (10.9°F).
Average pressure in December
Sunbeam, CO
- Average pressure in December: 30.22"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The months with the lowest atmospheric pressure are May and June (29.92"Hg).
Average wind speed in December
Sunbeam, CO
- Average wind speed in December: 5.5mph
The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest month (with the lowest average wind speed) is January (5.2mph).
Average humidity in December
Sunbeam, CO
- Average humidity in December: 80%
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (41%).
Average rainfall in December
Sunbeam, CO
- Average rainfall in December: 0.91"
The wettest month (with the highest rainfall) is April (1.38").
The driest months (with the least rainfall) are August and September (0.39").
Average rainfall days in December
Sunbeam, CO
- Average rainfall days in December: 3.5 days
The month with the highest number of rainy days is April (10.8 days).
The month with the least rainy days is January (3.1 days).
Average snowfall in December
Sunbeam, CO
- Average snowfall in December: 7.28"
The month with the highest snowfall is December (7.28").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Sunbeam, CO
- Average snowfall days in December: 11.9 days
The month with the highest number of snowfall days is February (13.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Sunbeam, CO
- Average daylight in December: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 6h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).
Average sunshine days in December
Sunbeam, CO
- Average sunshine days in December: 18.3 days
The month with the most sunshine days is June (22.8 days).
The month with the least sunshine days is February (13.3 days).
Average UV index in December
Sunbeam, CO
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Sunbeam, CO
- Average cloud cover in December: 38
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is September (Cloud cover 12).
Average visibility in December
Sunbeam, CO
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).





