December weather forecastRifle, CO
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Rifle, Colorado, with an average temperature varying between 30.7°F (-0.7°C) and 14.9°F (-9.5°C).Temperature
A subtle decrease in the average high-temperature marks December, falling from November's cold 42.1°F (5.6°C) to a freezing cold 30.7°F (-0.7°C). In December, the recorded average low-temperature is a still subzero cold 14.9°F (-9.5°C).Humidity
In December, the average relative humidity is 79%.Rainfall
In Rifle, during December, the rain falls for 8.4 days and regularly aggregates up to 1.14" (29mm) of precipitation. Throughout the year, there are 107.7 rainfall days, and 11.89" (302mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Rifle, during December, snow falls for 11 days and regularly aggregates up to 7.05" (179mm) of snow. In Rifle, during the entire year, snow falls for 58.6 days and aggregates up to 36.85" (936mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:13 am and sunset at 4:47 pm. On the last day of December, sunrise is at 7:31 am and sunset at 4:57 pm MST.
Sunshine
In December, the average sunshine 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 value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum UV index of 2 in December translates into the following recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. 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
Rifle, CO
- Average high temperature in December: 30.7°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in December: 14.9°F
The month with the highest average low temperature is July (50.4°F).
The coldest month (with the lowest average low temperature) is January (12°F).
Average pressure in December
Rifle, CO
- Average pressure in December: 30.2"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is May (29.93"Hg).
Average wind speed in December
Rifle, CO
- Average wind speed in December: 4.2mph
The windiest month (with the highest average wind speed) is June (6.2mph).
The calmest month (with the lowest average wind speed) is January (4.1mph).
Average humidity in December
Rifle, CO
- Average humidity in December: 79%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is June (43%).
Average rainfall in December
Rifle, CO
- Average rainfall in December: 1.14"
The wettest month (with the highest rainfall) is April (1.57").
The driest month (with the least rainfall) is September (0.51").
Average rainfall days in December
Rifle, CO
- Average rainfall days in December: 8.4 days
The month with the highest number of rainy days is April (14 days).
The month with the least rainy days is June (5.9 days).
Average snowfall in December
Rifle, CO
- Average snowfall in December: 7.05"
The month with the highest snowfall is February (8.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Rifle, CO
- Average snowfall days in December: 11 days
The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Rifle, 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 54min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).
Average sunshine days in December
Rifle, CO
- Average sunshine days in December: 16.9 days
The month with the most sunshine days is June (20.7 days).
The month with the least sunshine days is April (11.7 days).
Average UV index in December
Rifle, 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
Rifle, CO
- Average cloud cover in December: 34
The month with the most cloud cover is February (Cloud cover 39).
The months with the least cloud cover are June and September (Cloud cover 12).
Average visibility in December
Rifle, CO
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
