December weather forecast
Gypsum, CO

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Weather in December

December, the first month of the winter in Gypsum, is also a subzero cold month, with temperature in the range of an average high of 27.5°F (-2.5°C) and an average low of 7.7°F (-13.5°C).

Temperature

December indicates a shift in the average high-temperature, from November's wintry 38.5°F (3.6°C) to a subzero cold 27.5°F (-2.5°C). Throughout December, an average low-temperature of 7.7°F (-13.5°C) is expected.

Humidity

In Gypsum, the average relative humidity in December is 84%.

Rainfall

In Gypsum, Colorado, during December, the rain falls for 9.1 days and regularly aggregates up to 1.61" (41mm) of precipitation. Throughout the year, there are 143.9 rainfall days, and 18.54" (471mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through June, September through December. In December, it is snowing for 16.9 days. Throughout December, 11.81" (300mm) of snow is accumulated. Throughout the year, there are 99 snowfall days, and 71.06" (1805mm) of snow is accumulated.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year.
On the first day of December in Gypsum, sunrise is at 7:10 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:53 pm MST.

Sunshine

The average sunshine in December in Gypsum is 6.2h.

UV index

The months with the lowest UV index are February and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.
Note: A maximum UV index of 1 in December translates into the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
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Frequently asked questions

How cold is it in Gypsum in December?

In Gypsum, in December, the average high-temperature is 27.5°F (-2.5°C), and the average low-temperature is 7.7°F (-13.5°C).

What is the average humidity in December in Gypsum?

In Gypsum, the average relative humidity in December is 84%.

How many days does it rain in December in Gypsum?

In Gypsum, Colorado, in December, it is raining for 9.1 days, with typically 1.61" (41mm) of accumulated precipitation.

How many days does it snow in December in Gypsum?

In Gypsum, Colorado, in December, during 16.9 snowfall days, 11.81" (300mm) of snow is typically accumulated.

What is the month with the shortest days in Gypsum?

December has the shortest days of the year in Gypsum, Colorado, with an average of 9h and 24min of daylight.

How many hours of daylight does Gypsum have in December?

In December, the average day length in Gypsum is 9h and 25min.

When are sunrise and sunset in December in Gypsum?

In December, on the first day of the month, sunrise is at 7:10 am and sunset at 4:44 pm. On the last day of the month, in Gypsum, sunrise is at 7:28 am and sunset at 4:53 pm MST.

How many hours of sunshine does Gypsum have in December?

In December, the average sunshine duration in Gypsum, Colorado, is 6.2h.

What is the month with the lowest UV index in Gypsum?

The months with the lowest UV index are February and December, with an average maximum UV index of 1.

What is the UV index reading in December in Gypsum?

In Gypsum, Colorado, the average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a low health risk 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
Gypsum, CO

Average temperature in December - Gypsum, CO
  • Average high temperature in December: 27.5°F

The warmest month (with the highest average high temperature) is July (75.7°F).
The month with the lowest average high temperature is January (27.3°F).

  • Average low temperature in December: 7.7°F

The month with the highest average low temperature is July (44.2°F).
The coldest month (with the lowest average low temperature) is January (4.6°F).

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Average pressure in December
Gypsum, CO

Average pressure in December - Gypsum, CO
  • Average pressure in December: 30.19"Hg

The month with the highest atmospheric pressure is January (30.24"Hg).
The month with the lowest atmospheric pressure is May (29.94"Hg).

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Average wind speed in December
Gypsum, CO

Average wind speed in December - Gypsum, CO
  • Average wind speed in December: 4.4mph

The windiest month (with the highest average wind speed) is June (5.8mph).
The calmest month (with the lowest average wind speed) is January (4.3mph).

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Average humidity in December
Gypsum, CO

Average humidity in December - Gypsum, CO
  • Average humidity in December: 84%

The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is June (49%).

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Average rainfall in December
Gypsum, CO

Average rainfall in December - Gypsum, CO
  • Average rainfall in December: 1.61"

The wettest month (with the highest rainfall) is April (2.36").
The driest month (with the least rainfall) is September (0.87").

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Average rainfall days in December
Gypsum, CO

Average rainfall days in December - Gypsum, CO
  • Average rainfall days in December: 9.1 days

The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is November (5.8 days).

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Average snowfall in December
Gypsum, CO

Average snowfall in December - Gypsum, CO
  • Average snowfall in December: 11.81"

The month with the highest snowfall is February (13.74").
The months with the least snowfall are July and August (0").

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Average snowfall days in December
Gypsum, CO

Average snowfall days in December - Gypsum, CO
  • Average snowfall days in December: 16.9 days

The month with the highest number of snowfall days is February (18.9 days).
The months with the least snowfall days are July and August (0 days).

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

Average daylight in December / Average sunshine in December - Gypsum, CO
  • Average daylight in December: 9h and 2min

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 24min).

  • Average sunshine in December: 6h and 1min

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

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Average sunshine days in December
Gypsum, CO

Average sunshine days in December - Gypsum, CO
  • Average sunshine days in December: 12.7 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is April (6.2 days).

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Average UV index in December
Gypsum, CO

Average UV index in December - Gypsum, CO
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are February and December (UV index 1).

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Average cloud cover in December
Gypsum, CO

Average cloud cover in December - Gypsum, CO
  • Average cloud cover in December: 36

The month with the most cloud cover is February (Cloud cover 43).
The months with the least cloud cover are June and September (Cloud cover 14).

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Average visibility in December
Gypsum, CO

Average visibility in December - Gypsum, CO
  • Average visibility in December: 4mi

The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).

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Gypsum, Colorado, USA

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