December weather forecast
Green Mountain Falls, CO

Weather in December

December, the first month of the winter, in Green Mountain Falls, is still a cold month, with temperature in the range of an average high of 33.8°F (1°C) and an average low of 14.5°F (-9.7°C).

Temperature

With an average high-temperature of 33.8°F (1°C) and an average low-temperature of 14.5°F (-9.7°C), December is the coldest month.

Humidity

In December, the average relative humidity in Green Mountain Falls is 68%.

Rainfall

In Green Mountain Falls, it is raining for 2.9 days, with typically 0.71" (18mm) of accumulated precipitation. In Green Mountain Falls, during the entire year, the rain falls for 103.9 days and collects up to 19.69" (500mm) of precipitation.

Snowfall

January through June, October through December are months with snowfall in Green Mountain Falls. In Green Mountain Falls, during December, snow falls for 11.6 days and regularly aggregates up to 5.43" (138mm) of snow. In Green Mountain Falls, Colorado, during the entire year, snow falls for 79.5 days, and aggregates up to 62.48" (1587mm) of snow.

Daylight

The month with the shortest days in Green Mountain Falls is December, with an average of 9.5h of daylight.

Sunshine

In December, the average sunshine in Green Mountain Falls is 6.6h.

UV index

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Green Mountain Falls. A UV Index reading of 2, and below, represents a low threat to health 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:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the coldest month in Green Mountain Falls?

The coldest month in Green Mountain Falls, Colorado, is December, with an average high-temperature of 33.8°F (1°C) and an average low-temperature of 14.5°F (-9.7°C).

What is the average humidity in December in Green Mountain Falls?

The average relative humidity in December in Green Mountain Falls is 68%.

How many days does it rain in December in Green Mountain Falls?

In Green Mountain Falls, in December, during 2.9 rainfall days, 0.71" (18mm) of precipitation is typically accumulated.

How much does it snow in Green Mountain Falls in December?

In Green Mountain Falls, Colorado, during December, snow falls for 11.6 days and regularly aggregates up to 5.43" (138mm) of snow.

What is the month with the shortest days in Green Mountain Falls?

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

What is the average length of the day in December in Green Mountain Falls?

In Green Mountain Falls, Colorado, the average length of the day in December is 9.5h.

How long on average sun shines in December in Green Mountain Falls?

In December, the average sunshine in Green Mountain Falls, Colorado, is 6.6h.

When is the lowest UV index in Green Mountain Falls?

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 in Green Mountain Falls?

In Green Mountain Falls, Colorado, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in December
Green Mountain Falls, CO

Average temperature in December - Green Mountain Falls, CO
  • Average high temperature in December: 33.8°F

The warmest month (with the highest average high temperature) is July (74.8°F).
The month with the lowest average high temperature is December (33.8°F).

  • Average low temperature in December: 14.5°F

The month with the highest average low temperature is July (50.7°F).
The coldest month (with the lowest average low temperature) is December (14.5°F).

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Average pressure in December
Green Mountain Falls, CO

Average pressure in December - Green Mountain Falls, CO
  • Average pressure in December: 30.11"

The month with the highest atmospheric pressure is January (30.13").
The month with the lowest atmospheric pressure is April (29.91").

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Average wind speed in December
Green Mountain Falls, CO

Average wind speed in December - Green Mountain Falls, CO
  • Average wind speed in December: 7.8mph

The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

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Average humidity in December
Green Mountain Falls, CO

Average humidity in December - Green Mountain Falls, CO
  • Average humidity in December: 68%

The month with the highest relative humidity is February (73%).
The month with the lowest relative humidity is June (49%).

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Average rainfall in December
Green Mountain Falls, CO

Average rainfall in December - Green Mountain Falls, CO
  • Average rainfall in December: 0.71"

The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is November (0.59").

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Average rainfall days in December
Green Mountain Falls, CO

Average rainfall days in December - Green Mountain Falls, CO
  • Average rainfall days in December: 2.9 days

The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is November (2.4 days).

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Average snowfall in December
Green Mountain Falls, CO

Average snowfall in December - Green Mountain Falls, CO
  • Average snowfall in December: 5.43"

The month with the highest snowfall is April (12.52").
Months with the least snowfall are July, August and September (0").

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Average snowfall days in December
Green Mountain Falls, CO

Average snowfall days in December - Green Mountain Falls, CO
  • Average snowfall days in December: 11.6 days

The month with the highest number of snowfall days is April (13 days).
Months with the least snowfall days are July and August (0 days).

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Average daylight in December /
Average sunshine in December
Green Mountain Falls, CO

Average daylight in December / Average sunshine in December - Green Mountain Falls, 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: 6.6h

The month with the most sunshine is June (Average sunshine: 11.2h).
The month with the least sunshine is February (Average sunshine: 6.3h).

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Average sunshine days in December
Green Mountain Falls, CO

Average sunshine days in December - Green Mountain Falls, CO
  • Average sunshine days in December: 19.7 days

The month with the most sunshine days is November (22.2 days).
The month with the least sunshine days is April (10.6 days).

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Average UV index in December
Green Mountain Falls, CO

Average UV index in December - Green Mountain Falls, CO
  • Average UV index in December: 2

Months with the highest UV index are June and July (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
Green Mountain Falls, CO

Average cloud cover in December - Green Mountain Falls, CO
  • Average cloud cover in December: 29

The month with the most cloud cover is April (Cloud cover 34).
Months with the least cloud cover are June and November (Cloud cover 21).

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Average visibility in December
Green Mountain Falls, CO

Average visibility in December - Green Mountain Falls, CO
  • Average visibility in December: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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