December weather forecastWestcliffe, CO
December
Weather in December
The first month of the winter, December, is also an icy month in Westcliffe, Colorado, with an average temperature fluctuating between 18.5°F (-7.5°C) and 38.3°F (3.5°C).Temperature
Setting in of December comes with a decrease in the average high-temperature, moving from a chilly 48.4°F (9.1°C) in November to a cold 38.3°F (3.5°C). In December, Westcliffe experiences an average nighttime temperature of 18.5°F (-7.5°C).Humidity
The average relative humidity in December in Westcliffe is 65%.Rainfall
In Westcliffe, in December, it is raining for 4 days, with typically 0.35" (9mm) of accumulated precipitation. Throughout the year, in Westcliffe, there are 108.6 rainfall days, and 10.83" (275mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 5.5 days. Throughout December, 2.6" (66mm) of snow is accumulated. Throughout the year, there are 38 snowfall days, and 23.94" (608mm) of snow is accumulated.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year in Westcliffe.On the first day of the month, sunrise is at 7:00 am and sunset at 4:42 pm. On the last day of December, in Westcliffe, sunrise is at 7:18 am and sunset at 4:52 pm MST.
Sunshine
In December, the average sunshine in Westcliffe is 7.2h.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 estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily high UV index of 2 during December translates into the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Experience reduced UV exposure by about half when donning a wide-brim hat. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Westcliffe, CO
- Average high temperature in December: 38.3°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in December: 18.5°F
The month with the highest average low temperature is July (55.8°F).
The coldest month (with the lowest average low temperature) is December (18.5°F).
Average pressure in December
Westcliffe, CO
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is April (29.91"Hg).
Average wind speed in December
Westcliffe, CO
- Average wind speed in December: 7.4mph
The windiest months (with the highest average wind speed) are January, February and March (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in December
Westcliffe, CO
- Average humidity in December: 65%
The months with the highest relative humidity are January and February (69%).
The month with the lowest relative humidity is June (40%).
Average rainfall in December
Westcliffe, CO
- Average rainfall in December: 0.35"
The wettest month (with the highest rainfall) is July (2.2").
The driest months (with the least rainfall) are January and November (0.31").
Average rainfall days in December
Westcliffe, CO
- Average rainfall days in December: 4 days
The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is November (2.7 days).
Average snowfall in December
Westcliffe, CO
- Average snowfall in December: 2.6"
The month with the highest snowfall is February (5.63").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Westcliffe, CO
- Average snowfall days in December: 5.5 days
The month with the highest number of snowfall days is February (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Westcliffe, CO
- Average daylight in December: 9h and 36min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 7h and 12min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 7h and 0min).
Average sunshine days in December
Westcliffe, CO
- Average sunshine days in December: 23.8 days
The month with the most sunshine days is November (24.7 days).
The month with the least sunshine days is July (4.7 days).
Average UV index in December
Westcliffe, 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
Westcliffe, CO
- Average cloud cover in December: 20
The months with the most cloud cover are February and April (Cloud cover 23).
The months with the least cloud cover are June, September, October and November (Cloud cover 14).
Average visibility in December
Westcliffe, 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).





