December weather forecast
Alma, CO

The beauty of the Bristlecone Pines up the hill looking over to Alma and Fairplay, Colorado
The beauty of the Bristlecone Pines up the hill looking over to Alma and Fairplay, Colorado

Weather in December

December, the first month of the winter, in Alma, is still a freezing cold month, with temperature in the range of an average high of 22.5°F (-5.3°C) and an average low of 1.8°F (-16.8°C).

Temperature

The coldest month is December, with an average high-temperature of 22.5°F (-5.3°C) and an average low-temperature of 1.8°F (-16.8°C).

Humidity

In Alma, the average relative humidity in December is 85%.

Rainfall

In Alma, Colorado, in December, during 5.1 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. Throughout the year, there are 113.5 rainfall days, and 22.13" (562mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through December. In Alma, in December, during 17.5 snowfall days, 10.98" (279mm) of snow is typically accumulated. Throughout the year, there are 139 snowfall days, and 101.69" (2583mm) of snow is accumulated.

Daylight

With an average of 9.4h of daylight, December has the shortest days of the year.

Sunshine

In December, the average sunshine in Alma is 5.9h.

UV index

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to the Sun's UV rays for the average person.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Alma?

December is the coldest month, with an average high-temperature of 22.5°F (-5.3°C) and an average low-temperature of 1.8°F (-16.8°C).

What is the average humidity in December in Alma?

In December, the average relative humidity is 85%.

How much does it rain in Alma in December?

In Alma, during December, the rain falls for 5.1 days and regularly aggregates up to 1.34" (34mm) of precipitation.

How many days does it snow in December in Alma?

In Alma, in December, snow falls for 17.5 days, with typically accumulated 10.98" (279mm) of snow.

What is the month with the shortest days in Alma?

The month with the shortest days in Alma is December, with an average of 9.4h of daylight.

What is the average length of the day in December in Alma?

The average length of the day in December in Alma is 9.4h.

How many hours of sunshine does Alma have in December?

In Alma, the average sunshine in December is 5.9h.

How high is the UV index in December in Alma?

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health threat from the exposure to the Sun's UV rays.

Average temperature in December
Alma, CO

Average temperature in December - Alma, CO
  • Average high temperature in December: 22.5°F

The warmest month (with the highest average high temperature) is July (66.2°F).
The month with the lowest average high temperature is December (22.5°F).

  • Average low temperature in December: 1.8°F

The month with the highest average low temperature is July (40.5°F).
The coldest month (with the lowest average low temperature) is January (1.4°F).

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Average pressure in December
Alma, CO

Average pressure in December - Alma, CO
  • Average pressure in December: 30.16"

The month with the highest atmospheric pressure is January (30.2").
The month with the lowest atmospheric pressure is April (29.94").

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Average wind speed in December
Alma, CO

Average wind speed in December - Alma, CO
  • Average wind speed in December: 5.7mph

The windiest month (with the highest average wind speed) is June (6.4mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

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Average humidity in December
Alma, CO

Average humidity in December - Alma, CO
  • Average humidity in December: 85%

The month with the highest relative humidity is February (89%).
The month with the lowest relative humidity is June (52%).

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Average rainfall in December
Alma, CO

Average rainfall in December - Alma, CO
  • Average rainfall in December: 1.34"

The wettest month (with the highest rainfall) is July (3.39").
The driest month (with the least rainfall) is November (1.06").

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Average rainfall days in December
Alma, CO

Average rainfall days in December - Alma, CO
  • Average rainfall days in December: 5.1 days

The month with the highest number of rainy days is July (23.1 days).
The month with the least rainy days is November (2.8 days).

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Average snowfall in December
Alma, CO

Average snowfall in December - Alma, CO
  • Average snowfall in December: 10.98"

The month with the highest snowfall is May (16.26").
The month with the least snowfall is July (0.16").

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Average snowfall days in December
Alma, CO

Average snowfall days in December - Alma, CO
  • Average snowfall days in December: 17.5 days

The month with the highest number of snowfall days is April (18.8 days).
The month with the least snowfall days is July (0.5 days).

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

Average daylight in December / Average sunshine in December - Alma, CO
  • Average daylight in December: 9.4h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in December: 5.9h

The month with the most sunshine is June (Average sunshine: 11.6h).
The month with the least sunshine is February (Average sunshine: 5.6h).

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Average sunshine days in December
Alma, CO

Average sunshine days in December - Alma, CO
  • Average sunshine days in December: 13.7 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is July (4.8 days).

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Average UV index in December
Alma, CO

Average UV index in December - Alma, CO
  • Average UV index in December: 2

Months with the highest UV index are July and August (UV index 4).
The month with the lowest UV index is February (UV index 1).

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Average cloud cover in December
Alma, CO

Average cloud cover in December - Alma, CO
  • Average cloud cover in December: 43

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 17).

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Average visibility in December
Alma, CO

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

Months with the highest visibility are May, June, July, August, September and October (6mi).
Months with the lowest visibility are January, February, March, April and December (4mi).

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