December weather forecast
Green Mountain Falls, CO

Share

Weather in December

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

Temperature

The coldest period tends to be December, when average temperatures fluctuate between a high of 33.8°F (1°C) and a low of 14.5°F (-9.7°C).

Humidity

The average relative humidity in December is 68%.

Rainfall

In Green Mountain Falls, Colorado, in December, during 2.9 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. Throughout the year, there are 103.9 rainfall days, and 19.69" (500mm) of precipitation is accumulated.

Snowfall

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

Daylight

December has the shortest days of the year, with an average of 9h and 30min of daylight.
On the first day of December, sunrise is at 7:00 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:48 pm MST.

Sunshine

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

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 value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the average person.
Note: A typical high UV index of 2 in December suggests the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
[Resources]

Frequently asked questions

What is the coldest month in Green Mountain Falls?

In Green Mountain Falls, December is known for its average lowest temperatures, reaching a high of 33.8°F (1°C) and a low of 14.5°F (-9.7°C).

How cold is it in Green Mountain Falls in December?

In December, the average high-temperature and low-temperature are 33.8°F (1°C) and 14.5°F (-9.7°C) respectively.

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

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

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

In Green Mountain Falls, Colorado, during December, the rain falls for 2.9 days and regularly aggregates up to 0.71" (18mm) of precipitation.

How many days does it snow in December 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.

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

The month with the shortest days is December, with an average of 9h and 30min of daylight.

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

In Green Mountain Falls, the average day length in December is 9h and 29min.

When is the sunrise / sunset in December in Green Mountain Falls?

On the first day of December, sunrise is at 7:00 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:48 pm MST.

How many hours of sunshine does Green Mountain Falls have in December?

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

When is the lowest UV index in Green Mountain Falls?

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

What is the UV index reading in December in Green Mountain Falls?

In Green Mountain Falls, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to Sun's UV rays.
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
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).

[Resources]

Average pressure in December
Green Mountain Falls, CO

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

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

[Resources]

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).

[Resources]

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%).

[Resources]

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").

[Resources]

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).

[Resources]

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

[Resources]

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

[Resources]

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: 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 4min

The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).

[Resources]

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).

[Resources]

Average UV index in December
Green Mountain Falls, CO

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

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

[Resources]

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).
The months with the least cloud cover are June and November (Cloud cover 21).

[Resources]

Average visibility in December
Green Mountain Falls, CO

Average visibility in December - Green Mountain Falls, 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).

[Resources]

Green Mountain Falls, Colorado, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location