December weather forecastArapahoe, CO
December
Weather in December
The first month of the winter, December, is also a wintry month in Arapahoe, Colorado, with an average temperature varying between 41.2°F (5.1°C) and 24.1°F (-4.4°C).Temperature
Arapahoe reaches its lowest average temperatures in December, measuring 41.2°F (5.1°C) at the peak and 24.1°F (-4.4°C) at the lowest.Humidity
January, February and December, with an average relative humidity of 61%, are the most humid months.Rainfall
In Arapahoe, Colorado, during December, the rain falls for 3.8 days and regularly aggregates up to 0.43" (11mm) of precipitation. In Arapahoe, during the entire year, the rain falls for 108.3 days and collects up to 13.39" (340mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Arapahoe, in December, during 6 snowfall days, 1.42" (36mm) of snow is typically accumulated. In Arapahoe, Colorado, during the entire year, snow falls for 34 days and aggregates up to 11.57" (294mm) of snow.Daylight
December has the shortest days of the year in Arapahoe, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 6:48 am and sunset at 4:27 pm. On the last day of December, sunrise is at 7:07 am and sunset at 4:37 pm MST.
Sunshine
In Arapahoe, the average sunshine in December is 6.6h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Arapahoe. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: An average maximum UV index of 2 in December leads to these recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Minimize direct exposure to the Sun during midday when its radiation is at its peak. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Arapahoe, CO
- Average high temperature in December: 41.2°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is December (41.2°F).
- Average low temperature in December: 24.1°F
The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is December (24.1°F).
Average pressure in December
Arapahoe, CO
- Average pressure in December: 30.1"Hg
The months with the highest atmospheric pressure are January and December (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.8"Hg).
Average wind speed in December
Arapahoe, CO
- Average wind speed in December: 11.1mph
The windiest month (with the highest average wind speed) is April (13mph).
The calmest month (with the lowest average wind speed) is August (10.3mph).
Average humidity in December
Arapahoe, CO
- Average humidity in December: 61%
The months with the highest relative humidity are January, February and December (61%).
The months with the lowest relative humidity are June and July (48%).
Average rainfall in December
Arapahoe, CO
- Average rainfall in December: 0.43"
The wettest months (with the highest rainfall) are May and July (1.93").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in December
Arapahoe, CO
- Average rainfall days in December: 3.8 days
The month with the highest number of rainy days is July (15 days).
The months with the least rainy days are February and December (3.8 days).
Average snowfall in December
Arapahoe, CO
- Average snowfall in December: 1.42"
The month with the highest snowfall is February (2.28").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Arapahoe, CO
- Average snowfall days in December: 6 days
The month with the highest number of snowfall days is February (7.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Arapahoe, CO
- Average daylight in December: 9h and 30min
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 30min).
- Average sunshine in December: 6h and 36min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 6h and 24min).
Average sunshine days in December
Arapahoe, CO
- Average sunshine days in December: 22.2 days
The month with the most sunshine days is November (22.8 days).
The month with the least sunshine days is July (11.9 days).
Average UV index in December
Arapahoe, CO
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Arapahoe, CO
- Average cloud cover in December: 27
The month with the most cloud cover is February (Cloud cover 30).
The month with the least cloud cover is September (Cloud cover 17).
Average visibility in December
Arapahoe, 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).
