December weather forecast
Buena Vista, CO

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Weather in December

The first month of the winter, December, is also a subzero cold month in Buena Vista, Colorado, with temperature in the range of an average low of 6.6°F (-14.1°C) and an average high of 27.1°F (-2.7°C).

Temperature

December brings a drop in Buena Vista's average high-temperature, falling from an icy 37°F (2.8°C) in November to a subzero cold 27.1°F (-2.7°C). In Buena Vista, an average low-temperature of 6.6°F (-14.1°C) is recorded during December nights.

Humidity

In Buena Vista, the average relative humidity in December is 78%.

Rainfall

In December, the rain falls for 8.8 days. Throughout December, 0.94" (24mm) of precipitation is accumulated. Throughout the year, there are 121.5 rainfall days, and 15.2" (386mm) of precipitation is accumulated.

Snowfall

January through June, August through December are months with snowfall. In Buena Vista, during December, snow falls for 14.8 days and regularly aggregates up to 7.64" (194mm) of snow. Throughout the year, there are 106.6 snowfall days, and 62.44" (1586mm) 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 7:04 am and sunset at 4:43 pm. On the last day of December, sunrise is at 7:22 am and sunset at 4:52 pm MST.

Sunshine

In December, the average sunshine is 6.8h.

UV index

January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 2 during December translates into the following directions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Updated: Jul 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

In Buena Vista, in December, the average high-temperature is 27.1°F (-2.7°C), and the average low-temperature is 6.6°F (-14.1°C).

What is the average humidity in December?

The average relative humidity in December is 78%.

How much does it rain in December?

In December, the rain falls for 8.8 days. Throughout December, 0.94" (24mm) of precipitation is accumulated.

How many days does it snow in December in Buena Vista?

In December, it is snowing for 14.8 days. Throughout December, 7.64" (194mm) of snow is accumulated.

What is the month with the shortest days?

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

What is the average length of the day in December?

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

When is the sunrise / sunset in December in Buena Vista?

On the first day of December, sunrise is at 7:04 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:52 pm MST.

How long on average sun shines in December?

The average sunshine duration in December is 6.8h.

When is the lowest UV index?

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

How high is the UV index in December?

In Buena Vista, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents 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
Buena Vista, CO

Average temperature in December - Buena Vista, CO
  • Average high temperature in December: 27.1°F

The warmest month (with the highest average high temperature) is July (70.5°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in December: 6.6°F

The month with the highest average low temperature is July (44.2°F).
The coldest months (with the lowest average low temperature) are January and December (6.6°F).

Average pressure in December
Buena Vista, CO

Average pressure in December - Buena Vista, CO
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is April (29.94"Hg).

Average wind speed in December
Buena Vista, CO

Average wind speed in December - Buena Vista, CO
  • Average wind speed in December: 6.8mph

The windiest months (with the highest average wind speed) are February and April (7.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.6mph).

Average humidity in December
Buena Vista, CO

Average humidity in December - Buena Vista, CO
  • Average humidity in December: 78%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is June (46%).

Average rainfall in December
Buena Vista, CO

Average rainfall in December - Buena Vista, CO
  • Average rainfall in December: 0.94"

The wettest month (with the highest rainfall) is July (2.52").
The driest month (with the least rainfall) is November (0.67").

Average rainfall days in December
Buena Vista, CO

Average rainfall days in December - Buena Vista, CO
  • Average rainfall days in December: 8.8 days

The month with the highest number of rainy days is July (20.3 days).
The month with the least rainy days is November (4.4 days).

Average snowfall in December
Buena Vista, CO

Average snowfall in December - Buena Vista, CO
  • Average snowfall in December: 7.64"

The month with the highest snowfall is March (11.02").
The month with the least snowfall is July (0").

Average snowfall days in December
Buena Vista, CO

Average snowfall days in December - Buena Vista, CO
  • Average snowfall days in December: 14.8 days

The month with the highest number of snowfall days is February (16.9 days).
The month with the least snowfall days is July (0 days).

Average daylight in December /
Average sunshine in December
Buena Vista, CO

Average daylight in December / Average sunshine in December - Buena Vista, 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: 6h and 5min

The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 30min).

Average sunshine days in December
Buena Vista, CO

Average sunshine days in December - Buena Vista, CO
  • Average sunshine days in December: 14 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is July (7.9 days).

Average UV index in December
Buena Vista, CO

Average UV index in December - Buena Vista, CO
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).

Average cloud cover in December
Buena Vista, CO

Average cloud cover in December - Buena Vista, CO
  • Average cloud cover in December: 30

The month with the most cloud cover is February (Cloud cover 35).
The month with the least cloud cover is June (Cloud cover 15).

Average visibility in December
Buena Vista, CO

Average visibility in December - Buena Vista, CO
  • Average visibility in December: 5mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).

Buena Vista, Colorado, USA

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