December weather forecastMosca, CO
December
Weather in December
December, the first month of the winter in Mosca, is still a cold month, with an average temperature ranging between max 33.8°F (1°C) and min 15.4°F (-9.2°C).Temperature
Mosca's December weather shows a moderate shift in high-temperatures, falling from November's frosty 46.2°F (7.9°C) to a wintry 33.8°F (1°C). In Mosca, December is marked by an average low-temperature of 15.4°F (-9.2°C).Humidity
In Mosca, the average relative humidity in December is 71%.Rainfall
The months with the least rainfall are November and December Rain falls for 4.4 days and accumulates 0.31" (8mm) of rain.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 6.8 days. Throughout December, 2.48" (63mm) of snow is accumulated. In Mosca, during the entire year, snow falls for 37 days and aggregates up to 20.08" (510mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 7:00 am and sunset at 4:45 pm. On the last day of December, sunrise is at 7:18 am and sunset at 4:55 pm MST.
Sunshine
The average sunshine in December is 7h.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 2 during December translates into these guidelines:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mosca, CO
- Average high temperature in December: 33.8°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.3°F).
- Average low temperature in December: 15.4°F
The month with the highest average low temperature is July (50.5°F).
The coldest month (with the lowest average low temperature) is January (11.8°F).
Average pressure in December
Mosca, CO
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is April (29.91"Hg).
Average wind speed in December
Mosca, CO
- Average wind speed in December: 4.8mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
Mosca, CO
- Average humidity in December: 71%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is June (37%).
Average rainfall in December
Mosca, CO
- Average rainfall in December: 0.31"
The wettest month (with the highest rainfall) is July (1.18").
The driest months (with the least rainfall) are November and December (0.31").
Average rainfall days in December
Mosca, CO
- Average rainfall days in December: 4.4 days
The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is November (2.1 days).
Average snowfall in December
Mosca, CO
- Average snowfall in December: 2.48"
The months with the highest snowfall are January and March (3.5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Mosca, CO
- Average snowfall days in December: 6.8 days
The month with the highest number of snowfall days is February (7.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Mosca, 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: 7h and 0min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 48min).
Average sunshine days in December
Mosca, CO
- Average sunshine days in December: 23.3 days
The month with the most sunshine days is November (25.8 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in December
Mosca, CO
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in December
Mosca, CO
- Average cloud cover in December: 22
The months with the most cloud cover are January and February (Cloud cover 25).
The months with the least cloud cover are June, September and October (Cloud cover 12).
Average visibility in December
Mosca, 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).
