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
December brings a decrease in the average high-temperature, falling from November's cold 42.1°F (5.6°C) to a subzero cold 30.7°F (-0.7°C). Silt experiences a mean temperature of 14.9°F (-9.5°C) during December nights.Humidity
In December, the average relative humidity is 79%.Rainfall
In Silt, 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 in Silt, Colorado, are January through May, October through December. In December, it is snowing for 11 days. Throughout December, 7.05" (179mm) of snow is accumulated. Throughout the year, there are 58.6 snowfall days, and 36.85" (936mm) of snow is accumulated.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:12 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 4:56 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 estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 2 during December leads to these advisories:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How much does it rain in Silt in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Silt have in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Silt, 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
Silt, 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
Silt, 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
Silt, 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
Silt, 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
Silt, 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
Silt, 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
Silt, 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
Silt, CO
- Average daylight in December: 9h and 2min
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 2min
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
Silt, 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
Silt, 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
Silt, 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
Silt, 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).
Silt, Colorado, USA
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