December weather forecast
Hillrose, CO

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Weather in December

The first month of the winter, December, is also an icy month in Hillrose, Colorado, with temperature in the range of an average high of 38.7°F (3.7°C) and an average low of 22.5°F (-5.3°C).

Temperature

Hillrose's December weather, marked by an average high temperature of 38.7°F (3.7°C) and an average low temperature of 22.5°F (-5.3°C), is the coldest in the year.

Humidity

In Hillrose, the average relative humidity in December is 63%.

Rainfall

The months with the least rainfall are January and December Rain falls for 5 days and accumulates 0.39" (10mm) of rain.

Snowfall

January through May, October through December are months with snowfall. In Hillrose, in December, snow falls for 5.8 days, with typically accumulated 1.65" (42mm) of snow. Throughout the year, there are 33.8 snowfall days, and 12.83" (326mm) of snow is accumulated.

Daylight

The month with the shortest days in Hillrose is December, with an average of 9h and 24min of daylight.
On the first day of December, sunrise is at 6:58 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:38 pm MST.

Sunshine

The months with the least sunshine in Hillrose are February and December, with an average of 6.5h of sunshine.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, a daily UV index of 2 turns into the following recommendations:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month in Hillrose?

In Hillrose, December is the coldest month, with temperatures averaging a high of 38.7°F (3.7°C) and a low of 22.5°F (-5.3°C).

Is December cold in Hillrose?

The high-temperature, in December, in Hillrose, records 38.7°F (3.7°C), while the low-temperature is 22.5°F (-5.3°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 87.8°F (31°C).

What is the average humidity in December in Hillrose?

In December, the average relative humidity is 63%.

What is the driest month in Hillrose?

The months with the least rainfall in Hillrose are January and December Rain falls for 5 days and accumulates 0.39" (10mm) of rain.

How many days does it rain in December in Hillrose?

In Hillrose, Colorado, in December, it is raining for 5 days, with typically 0.39" (10mm) of accumulated precipitation.

How many days does it snow in December in Hillrose?

In Hillrose, Colorado, during December, snow falls for 5.8 days and regularly aggregates up to 1.65" (42mm) of snow.

What is the month with the shortest days in Hillrose?

With an average of 9h and 24min of daylight, December has the shortest days of the year.

How many hours of daylight does Hillrose have in December?

In Hillrose, the average day length in December is 9h and 21min.

What time are sunrise and sunset in December in Hillrose?

On the first day of December in Hillrose, Colorado, sunrise is at 6:58 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:38 pm MST.

What are the months with the least sunshine in Hillrose?

The months with the least sunshine in Hillrose, Colorado, are February and December, with an average of 6.5h of sunshine.

How many hours of sunshine does Hillrose have in December?

In Hillrose, Colorado, the average sunshine duration in December is 6.5h.

When is the lowest UV index in Hillrose?

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

What is the UV index reading in December in Hillrose?

The average daily maximum UV index in December in Hillrose, Colorado, is 2. A UV Index reading 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
Hillrose, CO

Average temperature in December - Hillrose, CO
  • Average high temperature in December: 38.7°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is December (38.7°F).

  • Average low temperature in December: 22.5°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is December (22.5°F).

Average pressure in December
Hillrose, CO

Average pressure in December - Hillrose, CO
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in December
Hillrose, CO

Average wind speed in December - Hillrose, CO
  • Average wind speed in December: 7.8mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is December (7.8mph).

Average humidity in December
Hillrose, CO

Average humidity in December - Hillrose, CO
  • Average humidity in December: 63%

The month with the highest relative humidity is January (64%).
The months with the lowest relative humidity are August and September (45%).

Average rainfall in December
Hillrose, CO

Average rainfall in December - Hillrose, CO
  • Average rainfall in December: 0.39"

The wettest month (with the highest rainfall) is May (2.2").
The driest months (with the least rainfall) are January and December (0.39").

Average rainfall days in December
Hillrose, CO

Average rainfall days in December - Hillrose, CO
  • Average rainfall days in December: 5 days

The month with the highest number of rainy days is July (14.4 days).
The month with the least rainy days is November (2.9 days).

Average snowfall in December
Hillrose, CO

Average snowfall in December - Hillrose, CO
  • Average snowfall in December: 1.65"

The month with the highest snowfall is February (2.64").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Hillrose, CO

Average snowfall days in December - Hillrose, CO
  • Average snowfall days in December: 5.8 days

The month with the highest number of snowfall days is February (8.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Hillrose, 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: 6h and 3min

The months with the most sunshine are June, July and August (Average sunshine: 11h and 48min).
The months with the least sunshine are February and December (Average sunshine: 6h and 30min).

Average sunshine days in December
Hillrose, CO

Average sunshine days in December - Hillrose, CO
  • Average sunshine days in December: 22.8 days

The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is July (12.8 days).

Average UV index in December
Hillrose, CO

Average UV index in December - Hillrose, 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
Hillrose, CO

Average cloud cover in December - Hillrose, CO
  • Average cloud cover in December: 28

The month with the most cloud cover is February (Cloud cover 31).
The month with the least cloud cover is August (Cloud cover 16).

Average visibility in December
Hillrose, CO

Average visibility in December - Hillrose, 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).

Hillrose, Colorado, USA

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