December weather forecast
Federal Heights, CO

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Weather in December

December in Federal Heights ushers in winter featuring frigid temperatures between 21.2°F (-6°C) and 41.2°F (5.1°C). Besides being the coldest, it also observes the least rainfall, a mere 0.35" (9mm) throughout the month. Snowfall amounts to 2.87" (73mm), adding a festive touch to the holiday season. Sunshine hours regress to a low of 7 with a corresponding UV index of 2, the lowest of the year. The peak pressure of 30.12in reflects the cold ambiance prevailing in December.

Temperature

December tends to be the coldest month, with temperatures averaging a daily high of 41.2°F (5.1°C) and a low of 21.2°F (-6°C).

Humidity

The average relative humidity in December is 60%.

Rainfall

January and December are months with the least rain when the rain falls for 4.4 days and typically aggregates up to 0.35" (9mm) of rain.

Snowfall

January through May, October through December are months with snowfall. In December, it is snowing for 5.6 days. Throughout December, 2.87" (73mm) of snow is accumulated. In Federal Heights, during the entire year, snow falls for 40.4 days and aggregates up to 31.3" (795mm) of snow.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:02 am and sunset at 4:35 pm. On the last day of December, sunrise is at 7:21 am and sunset at 4:45 pm MST.

Sunshine

In December, the average sunshine is 7h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum high UV index of 2 in December translates into the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

With average temperatures fluctuating between a high of 41.2°F (5.1°C) and a low of 21.2°F (-6°C), December stands out as the coldest month.

How cold is December?

In Federal Heights, in December, the average high-temperature is 41.2°F (5.1°C), and the average low-temperature is 21.2°F (-6°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 86°F (30°C).

What is the average humidity in December?

The average relative humidity in December is 60%.

What is the driest month in Federal Heights?

January and December are months with the least rain when the rain falls for 4.4 days and typically aggregates up to 0.35" (9mm) of rain.

How much does it rain in December?

In Federal Heights, during December, the rain falls for 4.4 days and regularly aggregates up to 0.35" (9mm) of precipitation.

How many days does it snow in December?

In Federal Heights, in December, during 5.6 snowfall days, 2.87" (73mm) of snow is typically accumulated.

What is the month with the shortest days?

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

What is the average length of the day in December?

In December, the average day length is 9h and 24min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:02 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:45 pm MST.

How long on average sun shines in December?

The average sunshine duration in December is 7h.

What is the month with the lowest UV index?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index intensity in December?

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Federal Heights, CO

Average temperature in December - Federal Heights, CO
  • Average high temperature in December: 41.2°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is December (41.2°F).

  • Average low temperature in December: 21.2°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is December (21.2°F).

Average pressure in December
Federal Heights, CO

Average pressure in December - Federal Heights, CO
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are April and June (29.91"Hg).

Average wind speed in December
Federal Heights, CO

Average wind speed in December - Federal Heights, CO
  • Average wind speed in December: 5.8mph

The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest months (with the lowest average wind speed) are August, September and December (5.8mph).

Average humidity in December
Federal Heights, CO

Average humidity in December - Federal Heights, CO
  • Average humidity in December: 60%

The month with the highest relative humidity is February (65%).
The months with the lowest relative humidity are June and August (40%).

Average rainfall in December
Federal Heights, CO

Average rainfall in December - Federal Heights, CO
  • Average rainfall in December: 0.35"

The wettest month (with the highest rainfall) is May (2.05").
The driest months (with the least rainfall) are January and December (0.35").

Average rainfall days in December
Federal Heights, CO

Average rainfall days in December - Federal Heights, CO
  • Average rainfall days in December: 4.4 days

The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is January (3.3 days).

Average snowfall in December
Federal Heights, CO

Average snowfall in December - Federal Heights, CO
  • Average snowfall in December: 2.87"

The month with the highest snowfall is April (5.55").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Federal Heights, CO

Average snowfall days in December - Federal Heights, CO
  • Average snowfall days in December: 5.6 days

The month with the highest number of snowfall days is February (9.4 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in December /
Average sunshine in December
Federal Heights, CO

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 7h and 0min

The months with the most sunshine are June and July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 42min).

Average sunshine days in December
Federal Heights, CO

Average sunshine days in December - Federal Heights, CO
  • Average sunshine days in December: 23.9 days

The month with the most sunshine days is December (23.9 days).
The month with the least sunshine days is July (8.8 days).

Average UV index in December
Federal Heights, CO

Average UV index in December - Federal Heights, CO
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Federal Heights, CO

Average cloud cover in December - Federal Heights, CO
  • Average cloud cover in December: 22

The month with the most cloud cover is April (Cloud cover 26).
The month with the least cloud cover is September (Cloud cover 15).

Average visibility in December
Federal Heights, CO

Average visibility in December - Federal Heights, CO
  • Average visibility in December: 6mi

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

Federal Heights, Colorado, USA

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