December weather forecastGlendevey, CO
December
Weather in December
December, the first month of the winter in Glendevey, is still a freezing cold month, with an average temperature varying between 13.3°F (-10.4°C) and 28.6°F (-1.9°C).Temperature
The coldest period is December, when temperatures fluctuate between an average high of 28.6°F (-1.9°C) and a low of 13.3°F (-10.4°C).Humidity
In Glendevey, the average relative humidity in December is 72%.Rainfall
In December, the rain falls for 6.5 days. Throughout December, 0.67" (17mm) of precipitation is accumulated. Throughout the year, there are 122.3 rainfall days, and 18.15" (461mm) of precipitation is accumulated.Snowfall
January through June, August through December are months with snowfall. In Glendevey, during December, snow falls for 12.9 days and regularly aggregates up to 5.04" (128mm) of snow. In Glendevey, during the entire year, snow falls for 103.4 days and aggregates up to 71.97" (1828mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:09 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:46 pm MST.
Sunshine
In Glendevey, the average sunshine in December is 6.5h.UV index
January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Around midday, solar radiation is most harmful; hence, exposure should be limited. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Glendevey, CO
- Average high temperature in December: 28.6°F
The warmest month (with the highest average high temperature) is July (74.3°F).
The month with the lowest average high temperature is December (28.6°F).
- Average low temperature in December: 13.3°F
The month with the highest average low temperature is July (51.3°F).
The coldest month (with the lowest average low temperature) is December (13.3°F).
Average pressure in December
Glendevey, CO
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Glendevey, CO
- Average wind speed in December: 11.7mph
The windiest month (with the highest average wind speed) is January (12.5mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in December
Glendevey, CO
- Average humidity in December: 72%
The month with the highest relative humidity is February (75%).
The months with the lowest relative humidity are June, August and September (48%).
Average rainfall in December
Glendevey, CO
- Average rainfall in December: 0.67"
The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is January (0.63").
Average rainfall days in December
Glendevey, CO
- Average rainfall days in December: 6.5 days
The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is November (4.2 days).
Average snowfall in December
Glendevey, CO
- Average snowfall in December: 5.04"
The month with the highest snowfall is April (14.88").
The month with the least snowfall is July (0").
Average snowfall days in December
Glendevey, CO
- Average snowfall days in December: 12.9 days
The month with the highest number of snowfall days is March (15.8 days).
The month with the least snowfall days is July (0 days).
Average daylight in December /
Average sunshine in December
Glendevey, CO
- Average daylight in December: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 6h and 30min
The month with the most sunshine is June (Average sunshine: 11h and 24min).
The month with the least sunshine is February (Average sunshine: 6h and 24min).
Average sunshine days in December
Glendevey, CO
- Average sunshine days in December: 17.7 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (7.2 days).
Average UV index in December
Glendevey, 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, April, October, November and December (UV index 2).
Average cloud cover in December
Glendevey, CO
- Average cloud cover in December: 30
The months with the most cloud cover are February, April and May (Cloud cover 34).
The month with the least cloud cover is September (Cloud cover 19).
Average visibility in December
Glendevey, 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).





