December weather forecast
Crested Butte, CO

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Scenic wooden holiday homes amid trees and great scenery in a village in Crested Butte, Colorado, a view of the snowy Mount Butte in the back
Scenic wooden holiday homes amid trees and great scenery in a village in Crested Butte, Colorado, a view of the snowy Mount Butte in the back

Weather in December

As the final month of the year, December in Crested Butte reaffirms that winter is in full swing. A substantial spike in snowfall, accumulating to a significant 19.06" (484mm), underlines the intensity of the season. The sunny days, although diminished considerably, provide beautiful quieter moments to appreciate this winter wonderland under the clear Colorado skies. While the chilly nights encourage indoor coziness and holiday spirit, January waits in the wings to carry forward this winter saga into the New Year.

Temperature

Temperatures reach their minimum during February and December, recording an average high-temperature of 22.6°F (-5.2°C).

Humidity

In December, the average relative humidity is 87%.

Rainfall

In Crested Butte, during December, the rain falls for 4.8 days and regularly aggregates up to 2.32" (59mm) of precipitation. In Crested Butte, during the entire year, the rain falls for 117.4 days and collects up to 29.33" (745mm) of precipitation.

Snowfall

January through December are months with snowfall. In Crested Butte, Colorado, in December, snow falls for 20 days, with typically accumulated 19.06" (484mm) of snow. Throughout the year, there are 159 snowfall days, and 149.53" (3798mm) 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 the month, sunrise is at 7:08 am and sunset at 4:46 pm. On the last day of December, sunrise is at 7:26 am and sunset at 4:56 pm MST.

Sunshine

In Crested Butte, the average sunshine in December is 5.3h.

UV index

The months with the lowest UV index are February, March and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 1 translates into these guidelines:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

The months of February and December bring the lowest temperatures, averaging a high of 22.6°F (-5.2°C).

How cold is December?

In Crested Butte, 22.6°F (-5.2°C) is the average high-temperature and 1°F (-17.2°C) is the average low-temperature during December.

What is the average humidity in December?

In December, the average relative humidity in Crested Butte is 87%.

How many days does it rain in December?

In Crested Butte, during December, the rain falls for 4.8 days and regularly aggregates up to 2.32" (59mm) of precipitation.

How much does it snow in December?

In Crested Butte, in December, during 20 snowfall days, 19.06" (484mm) of snow is typically accumulated.

What is the month with the shortest days?

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

What is the average length of the day in December in Crested Butte?

The average day length in December is 9h and 30min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:08 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:56 pm MST.

How long on average sun shines in December?

In Crested Butte, the average sunshine duration in December is 5.3h.

When is the lowest UV index in Crested Butte?

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

How high is the UV index in December?

The average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from 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
Crested Butte, CO

Average temperature in December - Crested Butte, CO
  • Average high temperature in December: 22.6°F

The warmest month (with the highest average high temperature) is July (67.6°F).
The months with the lowest average high temperature are February and December (22.6°F).

  • Average low temperature in December: 1°F

The month with the highest average low temperature is July (41°F).
The coldest month (with the lowest average low temperature) is January (0°F).

Average pressure in December
Crested Butte, CO

Average pressure in December - Crested Butte, CO
  • Average pressure in December: 30.17"Hg

The month with the highest atmospheric pressure is January (30.23"Hg).
The months with the lowest atmospheric pressure are April and May (29.95"Hg).

Average wind speed in December
Crested Butte, CO

Average wind speed in December - Crested Butte, CO
  • Average wind speed in December: 4.8mph

The windiest month (with the highest average wind speed) is June (6.3mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity in December
Crested Butte, CO

Average humidity in December - Crested Butte, CO
  • Average humidity in December: 87%

The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is June (52%).

Average rainfall in December
Crested Butte, CO

Average rainfall in December - Crested Butte, CO
  • Average rainfall in December: 2.32"

The wettest month (with the highest rainfall) is July (3.74").
The driest month (with the least rainfall) is November (1.61").

Average rainfall days in December
Crested Butte, CO

Average rainfall days in December - Crested Butte, CO
  • Average rainfall days in December: 4.8 days

The month with the highest number of rainy days is July (22.3 days).
The month with the least rainy days is November (3.1 days).

Average snowfall in December
Crested Butte, CO

Average snowfall in December - Crested Butte, CO
  • Average snowfall in December: 19.06"

The month with the highest snowfall is March (23.94").
The month with the least snowfall is July (0.16").

Average snowfall days in December
Crested Butte, CO

Average snowfall days in December - Crested Butte, CO
  • Average snowfall days in December: 20 days

The month with the highest number of snowfall days is April (21.8 days).
The month with the least snowfall days is July (0.7 days).

Average daylight in December /
Average sunshine in December
Crested Butte, CO

Average daylight in December / Average sunshine in December - Crested Butte, CO
  • Average daylight in December: 9h and 3min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in December: 5h and 2min

The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

Average sunshine days in December
Crested Butte, CO

Average sunshine days in December - Crested Butte, CO
  • Average sunshine days in December: 10.8 days

The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is April (5.3 days).

Average UV index in December
Crested Butte, CO

Average UV index in December - Crested Butte, CO
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are February, March and December (UV index 1).

Average cloud cover in December
Crested Butte, CO

Average cloud cover in December - Crested Butte, CO
  • Average cloud cover in December: 49

The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 17).

Average visibility in December
Crested Butte, CO

Average visibility in December - Crested Butte, CO
  • Average visibility in December: 4mi

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

Crested Butte, Colorado, USA

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