December weather forecast and climate
Collbran, CO

Weather in December

The first month of the winter, December, is still a cold month in Collbran, Colorado, with temperature in the range of an average high of 32°F (0°C) and an average low of 15.8°F (-9°C).

Temperature

In Collbran, the average high-temperature decreases, from a chilly 43.5°F (6.4°C) in November, to a cold 32°F (0°C). In December, in Collbran, the average low-temperature is 15.8°F (-9°C).

Humidity

The average relative humidity in Collbran is 77%.

Rainfall

In Collbran, during December, the rain falls for 8.5 days and regularly aggregates up to 1.65" (42mm) of precipitation. Throughout the year, in Collbran, there are 122.7 rainfall days, and 17.91" (455mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Collbran are January through May, October through December. In Collbran, snow falls for 13.6 days, with typically accumulated 10.79" (274mm) of snow. In Collbran, during the entire year, snow falls for 64.1 days, and aggregates up to 49.21" (1250mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9.5h of daylight.

Sunshine

In Collbran, Colorado, the average sunshine is 6.1h.

UV index

Months with the lowest UV index in Collbran are January through March, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 2 transform into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in December in Collbran?

The average high-temperature, in December, in Collbran, is 32°F (0°C), while the average low-temperature is 15.8°F (-9°C).

What is the average humidity in December in Collbran?

The average relative humidity in December in Collbran, Colorado, is 77%.

How much does it rain in Collbran in December?

In Collbran, during December, the rain falls for 8.5 days and regularly aggregates up to 1.65" (42mm) of precipitation.

How many days does it snow in December in Collbran?

In December, in Collbran, it is snowing for 13.6 days. Throughout December, 10.79" (274mm) of snow is accumulated.

What is the month with the shortest days in Collbran?

The month with the shortest days in Collbran, Colorado, is December, with an average of 9.5h of daylight.

How many hours of daylight does Collbran have in December?

In Collbran, Colorado, the average length of the day in December is 9.5h.

How long on average sun shines in December in Collbran?

In December, the average sunshine is 6.1h.

What are the months with the lowest UV index in Collbran?

Months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2.

What is the UV index reading in December in Collbran?

The average daily maximum UV index in December in Collbran is 2. A UV Index estimate of 2, and below, represents a low health threat from the exposure to the Sun's UV radiation.

Average temperature in December
Collbran, CO

Average temperature in December - Collbran, CO
  • Average high temperature in December: 32°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 (30.6°F).

  • Average low temperature in December: 15.8°F

The month with the highest average low temperature is July (54.3°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).

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Average pressure in December
Collbran, CO

Average pressure in December - Collbran, CO
  • Average pressure in December: 30.2"

The month with the highest atmospheric pressure is January (30.26").
The month with the lowest atmospheric pressure is May (29.91").

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Average wind speed in December
Collbran, CO

Average wind speed in December - Collbran, CO
  • Average wind speed in December: 4.3mph

The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest month (with the lowest average wind speed) is January (4.2mph).

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Average humidity in December
Collbran, CO

Average humidity in December - Collbran, CO
  • Average humidity in December: 77%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is June (37%).

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Average rainfall in December
Collbran, CO

Average rainfall in December - Collbran, CO
  • Average rainfall in December: 1.65"

The wettest month (with the highest rainfall) is March (2.09").
The driest month (with the least rainfall) is August (0.83").

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Average rainfall days in December
Collbran, CO

Average rainfall days in December - Collbran, CO
  • Average rainfall days in December: 8.5 days

The month with the highest number of rainy days is April (15.5 days).
The month with the least rainy days is November (6.2 days).

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Average snowfall in December
Collbran, CO

Average snowfall in December - Collbran, CO
  • Average snowfall in December: 10.79"

The month with the highest snowfall is January (12.28").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Collbran, CO

Average snowfall days in December - Collbran, CO
  • Average snowfall days in December: 13.6 days

The month with the highest number of snowfall days is January (15.7 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Collbran, CO

Average daylight in December / Average sunshine in December - Collbran, CO
  • Average daylight in December: 9.5h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in December: 6.1h

The month with the most sunshine is July (Average sunshine: 11.9h).
The month with the least sunshine is January (Average sunshine: 5.8h).

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Average sunshine days in December
Collbran, CO

Average sunshine days in December - Collbran, CO
  • Average sunshine days in December: 14.9 days

The month with the most sunshine days is August (20.8 days).
The month with the least sunshine days is February (10.7 days).

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Average UV index in December
Collbran, CO

Average UV index in December - Collbran, CO
  • Average UV index in December: 2

Months with the highest UV index are June, July and August (UV index 5).
Months with the lowest UV index are January, February, March, October, November and December (UV index 2).

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Average cloud cover in December
Collbran, CO

Average cloud cover in December - Collbran, CO
  • Average cloud cover in December: 37

The month with the most cloud cover is February (Cloud cover 40).
Months with the least cloud cover are June and September (Cloud cover 14).

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Average visibility in December
Collbran, CO

Average visibility in December - Collbran, CO
  • Average visibility in December: 5mi

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).

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