December weather forecastGlenwood Springs, CO
December
Weather in December
In Glenwood Springs, December bears the brunt of winter, harboring the most severe conditions. The heaviest snowfall is witnessed in this month, with an impressive 8.62" (219mm) accumulation. Residents and visitors revel in festive activities, despite challenging weather conditions. As the month closes, the city gears up for another cold January, bringing the weather cycle full circle.Temperature
Glenwood Springs in December experiences a subtle temperature decline, with average high-temperatures reducing from a cold 40.5°F (4.7°C) in November to a freezing cold 29.5°F (-1.4°C). In the month of December, Glenwood Springs experiences an average low-temperature of 11.7°F (-11.3°C).Humidity
In December, the average relative humidity is 80%.Rainfall
In Glenwood Springs, in December, it is raining for 9.4 days, with typically 1.3" (33mm) of accumulated precipitation. Throughout the year, in Glenwood Springs, there are 123 rainfall days, and 14.65" (372mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through June, October through December. In Glenwood Springs, during December, snow falls for 12.8 days and regularly aggregates up to 8.62" (219mm) of snow. In Glenwood Springs, during the entire year, snow falls for 69.4 days and aggregates up to 49.13" (1248mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year in Glenwood Springs.On the first day of December, sunrise is at 7:11 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 4:55 pm MST.
Sunshine
The average sunshine in December is 6.4h.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 minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Glenwood Springs, CO
- Average high temperature in December: 29.5°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in December: 11.7°F
The month with the highest average low temperature is July (47.8°F).
The coldest month (with the lowest average low temperature) is January (9.5°F).
Average pressure in December
Glenwood Springs, CO
- Average pressure in December: 30.19"Hg
The month with the highest atmospheric pressure is January (30.25"Hg).
The month with the lowest atmospheric pressure is May (29.93"Hg).
Average wind speed in December
Glenwood Springs, CO
- Average wind speed in December: 4.3mph
The windiest month (with the highest average wind speed) is June (5.8mph).
The calmest months (with the lowest average wind speed) are January and December (4.3mph).
Average humidity in December
Glenwood Springs, CO
- Average humidity in December: 80%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is June (47%).
Average rainfall in December
Glenwood Springs, CO
- Average rainfall in December: 1.3"
The wettest month (with the highest rainfall) is April (1.73").
The driest month (with the least rainfall) is September (0.63").
Average rainfall days in December
Glenwood Springs, CO
- Average rainfall days in December: 9.4 days
The month with the highest number of rainy days is April (15 days).
The month with the least rainy days is February (7.1 days).
Average snowfall in December
Glenwood Springs, CO
- Average snowfall in December: 8.62"
The month with the highest snowfall is February (11.18").
The months with the least snowfall are July, August and September (0").
Average snowfall days in December
Glenwood Springs, CO
- Average snowfall days in December: 12.8 days
The month with the highest number of snowfall days is February (15.2 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Glenwood Springs, CO
- Average daylight in December: 9h and 24min
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 24min).
- Average sunshine in December: 6h and 24min
The months with the most sunshine are June, July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 6min).
Average sunshine days in December
Glenwood Springs, CO
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is April (9.6 days).
Average UV index in December
Glenwood Springs, 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, March, October, November and December (UV index 2).
Average cloud cover in December
Glenwood Springs, CO
- Average cloud cover in December: 33
The month with the most cloud cover is February (Cloud cover 38).
The month with the least cloud cover is September (Cloud cover 12).
Average visibility in December
Glenwood Springs, 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).
