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
A shift in the average high-temperature occurs in December, reducing from an icy 38.3°F (3.5°C) in November to a freezing cold 26.8°F (-2.9°C). Sillsville, in December, displays a significant temperature downturn during the night, with an average reading of 3.7°F (-15.7°C).Humidity
In Sillsville, the average relative humidity in December is 83%.Rainfall
In December, in Sillsville, the rain falls for 9.6 days. Throughout December, 1.06" (27mm) of precipitation is accumulated. Throughout the year, there are 88.8 rainfall days, and 9.61" (244mm) of precipitation is accumulated.Snowfall
January through June, October through December are months with snowfall. In December, it is snowing for 13.9 days. Throughout December, 8.54" (217mm) of snow is accumulated. In Sillsville, during the entire year, snow falls for 91.9 days and aggregates up to 51.77" (1315mm) of snow.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:06 am and sunset at 4:46 pm. On the last day of December, sunrise is at 7:24 am and sunset at 4:56 pm MST.
Sunshine
In Sillsville, Colorado, 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 estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum high daily UV index of 2 during December translates into the following directions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is December in Sillsville?
What is the average humidity in December in Sillsville?
How many days does it rain in December in Sillsville?
How much does it snow in Sillsville in December?
What is the month with the shortest days in Sillsville?
What is the average length of the day in December in Sillsville?
When are sunrise and sunset in December in Sillsville?
How long on average sun shines in December in Sillsville?
When is the lowest UV index in Sillsville?
What is the UV index intensity in December in Sillsville?
Average temperature in December
Sillsville, CO
- Average high temperature in December: 26.8°F
The warmest month (with the highest average high temperature) is July (74.8°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in December: 3.7°F
The month with the highest average low temperature is July (44.6°F).
The coldest month (with the lowest average low temperature) is January (1.8°F).
Average pressure in December
Sillsville, CO
- Average pressure in December: 30.17"Hg
The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is April (29.94"Hg).
Average wind speed in December
Sillsville, CO
- Average wind speed in December: 4.5mph
The windiest months (with the highest average wind speed) are May and June (6.3mph).
The calmest month (with the lowest average wind speed) is December (4.5mph).
Average humidity in December
Sillsville, CO
- Average humidity in December: 83%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is June (44%).
Average rainfall in December
Sillsville, CO
- Average rainfall in December: 1.06"
The wettest months (with the highest rainfall) are February and March (1.18").
The driest month (with the least rainfall) is September (0.35").
Average rainfall days in December
Sillsville, CO
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is July (10.3 days).
The month with the least rainy days is October (4.1 days).
Average snowfall in December
Sillsville, CO
- Average snowfall in December: 8.54"
The month with the highest snowfall is February (9.37").
The months with the least snowfall are July, August and September (0").
Average snowfall days in December
Sillsville, CO
- Average snowfall days in December: 13.9 days
The month with the highest number of snowfall days is February (16.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Sillsville, 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: 6h and 3min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 6h and 24min).
Average sunshine days in December
Sillsville, CO
- Average sunshine days in December: 15.4 days
The month with the most sunshine days is June (23.1 days).
The month with the least sunshine days is February (10.3 days).
Average UV index in December
Sillsville, CO
- Average UV index in December: 2
The month with the highest UV index is July (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
Sillsville, CO
- Average cloud cover in December: 31
The month with the most cloud cover is February (Cloud cover 35).
The months with the least cloud cover are June and September (Cloud cover 12).
Average visibility in December
Sillsville, CO
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
Sillsville, Colorado, USA
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