December weather forecastCascade, CO
December
Weather in December
December, the first month of the winter in Cascade, is also an icy month, with temperature in the range of an average low of 18.3°F (-7.6°C) and an average high of 37.2°F (2.9°C).Temperature
In Cascade, December is the coldest month, with temperatures averaging a high of 37.2°F (2.9°C) and a low of 18.3°F (-7.6°C).Humidity
In December, the average relative humidity is 64%.Rainfall
November and December are months with the least rain when the rain falls for 4.3 days and typically aggregates up to 0.63" (16mm) of rain.Snowfall
January through May, September through December are months with snowfall. In Cascade, Colorado, in December, during 9.2 snowfall days, 4.72" (120mm) of snow is typically accumulated. Throughout the year, there are 56.2 snowfall days, and 42.13" (1070mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:00 am and sunset at 4:38 pm. On the last day of December, sunrise is at 7:18 am and sunset at 4:48 pm MST.
Sunshine
The average sunshine in December in Cascade is 6.9h.UV index
The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. It's recommended to limit sun exposure when its radiation is at its peak during midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Cascade, CO
- Average high temperature in December: 37.2°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is December (37.2°F).
- Average low temperature in December: 18.3°F
The month with the highest average low temperature is July (54.7°F).
The coldest month (with the lowest average low temperature) is December (18.3°F).
Average pressure in December
Cascade, CO
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is April (29.91"Hg).
Average wind speed in December
Cascade, CO
- Average wind speed in December: 7.4mph
The windiest month (with the highest average wind speed) is April (8.2mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in December
Cascade, CO
- Average humidity in December: 64%
The month with the highest relative humidity is February (67%).
The month with the lowest relative humidity is June (46%).
Average rainfall in December
Cascade, CO
- Average rainfall in December: 0.63"
The wettest month (with the highest rainfall) is July (3.27").
The driest months (with the least rainfall) are November and December (0.63").
Average rainfall days in December
Cascade, CO
- Average rainfall days in December: 4.3 days
The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is February (3.5 days).
Average snowfall in December
Cascade, CO
- Average snowfall in December: 4.72"
The month with the highest snowfall is February (7.2").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Cascade, CO
- Average snowfall days in December: 9.2 days
The month with the highest number of snowfall days is February (10.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Cascade, CO
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 6h and 54min
The months with the most sunshine are June and August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 6h and 36min).
Average sunshine days in December
Cascade, CO
- Average sunshine days in December: 20.9 days
The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is July (8.6 days).
Average UV index in December
Cascade, 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
Cascade, CO
- Average cloud cover in December: 23
The month with the most cloud cover is April (Cloud cover 29).
The months with the least cloud cover are September and November (Cloud cover 17).
Average visibility in December
Cascade, 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).





