Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
As December begins, there is a decrease in the average high-temperature, falling from a chilly 48.4°F (9.1°C) in November to a cold 38.3°F (3.5°C). Williamsburg experiences an average nighttime temperature of 18.5°F (-7.5°C) in the month of December.Humidity
In December, the average relative humidity in Williamsburg is 65%.Rainfall
In December, the rain falls for 4 days. Throughout December, 0.35" (9mm) of precipitation is accumulated. Throughout the year, in Williamsburg, there are 108.6 rainfall days, and 10.83" (275mm) of precipitation is accumulated.Snowfall
Months with snowfall in Williamsburg are January through May, October through December. In Williamsburg, Colorado, during December, snow falls for 5.5 days and regularly aggregates up to 2.6" (66mm) of snow. In Williamsburg, during the entire year, snow falls for 38 days and aggregates up to 23.94" (608mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of December in Williamsburg, sunrise is at 6:59 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:50 pm MST.
Sunshine
The average sunshine in December in Williamsburg is 7.2h.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: During December, 2 as the daily maximum UV index converts into the following advice:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Frequently asked questions
Is December cold in Williamsburg?
What is the average humidity in December in Williamsburg?
How much does it rain in Williamsburg in December?
How much does it snow in Williamsburg in December?
What is the month with the shortest days in Williamsburg?
What is the average length of the day in December in Williamsburg?
When is the sunrise / sunset in December in Williamsburg?
How many hours of sunshine does Williamsburg have in December?
What are the months with the lowest UV index in Williamsburg?
What is the UV index reading in December in Williamsburg?
Average temperature in December
Williamsburg, 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
Williamsburg, 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
Williamsburg, 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
Williamsburg, 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
Williamsburg, 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
Williamsburg, 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
Williamsburg, 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
Williamsburg, 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
Williamsburg, CO
- Average daylight in December: 9h and 3min
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: 7h and 1min
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
Williamsburg, 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
Williamsburg, 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
Williamsburg, 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
Williamsburg, 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).
Williamsburg, Colorado, USA
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