December weather forecast
Black Forest, CO

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Weather in December

The first month of the winter, December, is still a cold month in Black Forest, Colorado, with temperature in the range of an average high of 36.3°F (2.4°C) and an average low of 18.5°F (-7.5°C).

Temperature

December tends to be the coldest month, with temperatures averaging a daily high of 36.3°F (2.4°C) and a low of 18.5°F (-7.5°C).

Humidity

In Black Forest, Colorado, the average relative humidity in December is 63%.

Rainfall

The month with the least rainfall in Black Forest is December, when the rain falls for 4.5 days and typically collects 0.51" (13mm) of precipitation.

Snowfall

Months with snowfall in Black Forest are January through May, September through December. In December, in Black Forest, it is snowing for 9.3 days. Throughout December, 3.23" (82mm) of snow is accumulated. In Black Forest, during the entire year, snow falls for 63.1 days and aggregates up to 34.76" (883mm) 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 6:59 am and sunset at 4:36 pm. On the last day of December, in Black Forest, sunrise is at 7:17 am and sunset at 4:46 pm MST.

Sunshine

In Black Forest, the average sunshine in December is 6.8h.

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 low threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 2 during December leads to these advisories:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
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Frequently asked questions

What is the coldest time of year in Black Forest?

In Black Forest, December is the month with the lowest recorded average temperatures, measuring a high of 36.3°F (2.4°C) and a low of 18.5°F (-7.5°C).

How cold is December in Black Forest?

In December, in Black Forest, the average high-temperature is 36.3°F (2.4°C), and the average low-temperature is 18.5°F (-7.5°C).

What is the average humidity in December in Black Forest?

In Black Forest, Colorado, the average relative humidity in December is 63%.

What is the driest month in Black Forest?

The month with the least rainfall in Black Forest is December, when the rain falls for 4.5 days and typically collects 0.51" (13mm) of precipitation.

How many days does it rain in December in Black Forest?

In December, the rain falls for 4.5 days. Throughout December, 0.51" (13mm) of precipitation is accumulated.

How much does it snow in Black Forest in December?

In Black Forest, Colorado, during December, snow falls for 9.3 days and regularly aggregates up to 3.23" (82mm) of snow.

What is the month with the shortest days in Black Forest?

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

What is the average length of the day in December in Black Forest?

In Black Forest, the average day length in December is 9h and 29min.

When are sunrise and sunset in December in Black Forest?

On the first day of December in Black Forest, Colorado, sunrise is at 6:59 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:46 pm MST.

How long on average sun shines in December in Black Forest?

In Black Forest, the average sunshine duration in December is 6.8h.

What are the months with the lowest UV index in Black Forest?

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Black Forest, Colorado.

How high is the UV index in December in Black Forest?

In Black Forest, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to 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
Black Forest, CO

Average temperature in December - Black Forest, CO
  • Average high temperature in December: 36.3°F

The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is December (36.3°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).

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Average pressure in December
Black Forest, CO

Average pressure in December - Black Forest, CO
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is April (29.9"Hg).

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Average wind speed in December
Black Forest, CO

Average wind speed in December - Black Forest, CO
  • Average wind speed in December: 8.2mph

The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is August (7.1mph).

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Average humidity in December
Black Forest, CO

Average humidity in December - Black Forest, CO
  • Average humidity in December: 63%

The month with the highest relative humidity is February (67%).
The month with the lowest relative humidity is June (48%).

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Average rainfall in December
Black Forest, CO

Average rainfall in December - Black Forest, CO
  • Average rainfall in December: 0.51"

The wettest month (with the highest rainfall) is July (3.15").
The driest month (with the least rainfall) is December (0.51").

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Average rainfall days in December
Black Forest, CO

Average rainfall days in December - Black Forest, CO
  • Average rainfall days in December: 4.5 days

The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is November (2.7 days).

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Average snowfall in December
Black Forest, CO

Average snowfall in December - Black Forest, CO
  • Average snowfall in December: 3.23"

The month with the highest snowfall is April (6.42").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in December
Black Forest, CO

Average snowfall days in December - Black Forest, CO
  • Average snowfall days in December: 9.3 days

The month with the highest number of snowfall days is February (11.6 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in December /
Average sunshine in December
Black Forest, CO

Average daylight in December / Average sunshine in December - Black Forest, 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 5min

The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is February (Average sunshine: 6h and 24min).

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Average sunshine days in December
Black Forest, CO

Average sunshine days in December - Black Forest, CO
  • Average sunshine days in December: 20.5 days

The month with the most sunshine days is November (22 days).
The month with the least sunshine days is July (8.3 days).

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Average UV index in December
Black Forest, CO

Average UV index in December - Black Forest, 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).

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Average cloud cover in December
Black Forest, CO

Average cloud cover in December - Black Forest, CO
  • Average cloud cover in December: 25

The month with the most cloud cover is April (Cloud cover 31).
The months with the least cloud cover are June, October and November (Cloud cover 19).

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Average visibility in December
Black Forest, CO

Average visibility in December - Black Forest, 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).

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Black Forest, Colorado, USA

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