December weather forecast
Collbran, CO

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Weather in December

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

Temperature

As November shifts into December, a slight alteration in temperatures is observed, with average highs reducing from a frosty 43.5°F (6.4°C) to a cold 32°F (0°C). The average low-temperature, in December, is a subzero cold 15.8°F (-9°C).

Humidity

In December, the average relative humidity is 77%.

Rainfall

In Collbran, during December, the rain falls for 8.5 days and regularly aggregates up to 1.65" (42mm) of precipitation. In Collbran, during the entire year, the rain falls for 122.7 days and collects up to 17.91" (455mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Collbran, in December, during 13.6 snowfall days, 10.79" (274mm) of snow is typically accumulated. Throughout the year, there are 64.1 snowfall days, and 49.21" (1250mm) of snow is accumulated.

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 7:13 am and sunset at 4:49 pm. On the last day of December, sunrise is at 7:31 am and sunset at 4:59 pm MST.

Sunshine

In December, the average sunshine is 6.1h.

UV index

January through March, 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 low health risk from exposure to the Sun's UV rays for average individuals.
Note: In December, the maximum UV index of 2 translates into these guidelines:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

In December, in Collbran, the average high-temperature is 32°F (0°C), and the average low-temperature is 15.8°F (-9°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, in July is estimated at 82.4°F (28°C).

What is the average humidity in December?

In Collbran, the average relative humidity in December is 77%.

How much does it rain in December?

In December, in Collbran, the rain falls for 8.5 days. Throughout December, 1.65" (42mm) of precipitation is accumulated.

How many days does it snow in December?

In Collbran, during December, snow falls for 13.6 days and regularly aggregates up to 10.79" (274mm) of snow.

What is the month with the shortest days?

With an average of 9h and 30min of daylight, December has the shortest days of the year.

How many hours of daylight does Collbran have in December?

In Collbran, Colorado, the average day length in December is 9h and 28min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:13 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 4:59 pm MST.

How many hours of sunshine does Collbran have in December?

The average sunshine duration in December is 6.1h.

When is the lowest UV index?

The 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 intensity in December?

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

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).

Average pressure in December
Collbran, CO

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

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

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).

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%).

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").

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).

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").
The months with the least snowfall are June, July, August and September (0").

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).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Collbran, CO
  • Average daylight in December: 9h and 3min

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 30min).

  • Average sunshine in December: 6h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 48min).

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).

Average UV index in December
Collbran, CO

Average UV index in December - Collbran, 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
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).
The months with the least cloud cover are June and September (Cloud cover 14).

Average visibility in December
Collbran, CO

Average visibility in December - Collbran, 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).

Collbran, Colorado, USA

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