December weather forecast
Moffat, CO

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Weather in December

The first month of the winter, December, is also a wintry month in Moffat, Colorado, with temperature in the range of an average low of 13.5°F (-10.3°C) and an average high of 32.4°F (0.2°C).

Temperature

The transition into December is accompanied by a temperature decrease, with the average high-temperature shifting from a chilly 44.6°F (7°C) in November to an icy 32.4°F (0.2°C). Moffat's nighttime temperature during December is consistently averaged at an extreme cold 13.5°F (-10.3°C).

Humidity

In December, the average relative humidity is 73%.

Rainfall

In Moffat, in December, it is raining for 5.1 days, with typically 0.43" (11mm) of accumulated precipitation. Throughout the year, there are 102.4 rainfall days, and 9.13" (232mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In December, it is snowing for 9.4 days. Throughout December, 3.35" (85mm) of snow is accumulated. In Moffat, during the entire year, snow falls for 51.3 days and aggregates up to 23.94" (608mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 36min of daylight.
On the first day of the month, sunrise is at 7:01 am and sunset at 4:44 pm. On the last day of December, sunrise is at 7:19 am and sunset at 4:54 pm MST.

Sunshine

In December, the average sunshine is 7.1h.

UV index

The months with the lowest UV index in Moffat 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 exposure to the Sun's UV rays for ordinary individuals.
Note: In December, a regular UV index of 2 translates into these guidelines:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

An average high-temperature, in December, in Moffat, is 32.4°F (0.2°C) and the average low-temperature is 13.5°F (-10.3°C).

What is the average humidity in December?

In Moffat, the average relative humidity in December is 73%.

How many days does it rain in December?

In Moffat, Colorado, in December, it is raining for 5.1 days, with typically 0.43" (11mm) of accumulated precipitation.

How much does it snow in December?

In December, it is snowing for 9.4 days. Throughout December, 3.35" (85mm) of snow is accumulated.

What is the month with the shortest days?

December has the shortest days of the year in Moffat, with an average of 9h and 36min of daylight.

How many hours of daylight does Moffat have in December?

The average day length in December is 9h and 35min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:01 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:54 pm MST.

How long on average sun shines in December?

The average sunshine duration in December is 7.1h.

What are the months with the lowest UV index?

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

What is the UV index intensity in December?

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation.
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
Moffat, CO

Average temperature in December - Moffat, CO
  • Average high temperature in December: 32.4°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (30.4°F).

  • Average low temperature in December: 13.5°F

The month with the highest average low temperature is July (48.7°F).
The coldest month (with the lowest average low temperature) is January (10.4°F).

Average pressure in December
Moffat, CO

Average pressure in December - Moffat, CO
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is April (29.92"Hg).

Average wind speed in December
Moffat, CO

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

The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in December
Moffat, CO

Average humidity in December - Moffat, CO
  • Average humidity in December: 73%

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is June (38%).

Average rainfall in December
Moffat, CO

Average rainfall in December - Moffat, CO
  • Average rainfall in December: 0.43"

The wettest month (with the highest rainfall) is July (1.85").
The driest month (with the least rainfall) is November (0.31").

Average rainfall days in December
Moffat, CO

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

The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is November (2.2 days).

Average snowfall in December
Moffat, CO

Average snowfall in December - Moffat, CO
  • Average snowfall in December: 3.35"

The month with the highest snowfall is February (4.33").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Moffat, CO

Average snowfall days in December - Moffat, CO
  • Average snowfall days in December: 9.4 days

The month with the highest number of snowfall days is February (9.8 days).
The months with the least snowfall days are July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Moffat, CO
  • Average daylight in December: 9h and 4min

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 36min).

  • Average sunshine in December: 7h and 1min

The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 7h and 0min).

Average sunshine days in December
Moffat, CO

Average sunshine days in December - Moffat, CO
  • Average sunshine days in December: 20.5 days

The month with the most sunshine days is November (23.7 days).
The month with the least sunshine days is July (7.3 days).

Average UV index in December
Moffat, CO

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

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

Average cloud cover in December
Moffat, CO

Average cloud cover in December - Moffat, CO
  • Average cloud cover in December: 21

The months with the most cloud cover are January and February (Cloud cover 24).
The months with the least cloud cover are June, October and November (Cloud cover 12).

Average visibility in December
Moffat, CO

Average visibility in December - Moffat, CO
  • Average visibility in December: 6mi

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

Moffat, Colorado, USA

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