December weather forecast
Jaroso, CO

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Weather in December

December, the first month of the winter in Jaroso, is also an icy month, with temperature in the range of an average high of 32.2°F (0.1°C) and an average low of 11.8°F (-11.2°C).

Temperature

Start of December brings a shift in the average high-temperature, falling from November's chilly 43.3°F (6.3°C) to a wintry 32.2°F (0.1°C). Jaroso's average low-temperature is measured at an extreme cold 11.8°F (-11.2°C) during December.

Humidity

In December, the average relative humidity is 75%.

Rainfall

In Jaroso, in December, during 3.3 rainfall days, 0.51" (13mm) of precipitation is typically accumulated. Throughout the year, there are 72.2 rainfall days, and 8.82" (224mm) of precipitation is accumulated.

Snowfall

January through June, September through December are months with snowfall. In Jaroso, during December, snow falls for 9.7 days and regularly aggregates up to 4.06" (103mm) of snow. In Jaroso, during the entire year, snow falls for 57.6 days and aggregates up to 28.58" (726mm) of snow.

Daylight

With an average of 9h and 42min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 6:57 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:56 pm MST.

Sunshine

In December, the average sunshine is 6.6h.

UV index

The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The average daily UV index of 2 in December transforms into the following instructions:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Updated: Jun 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

During December, Jaroso experiences an average high-temperature of 32.2°F (0.1°C) and a low-temperature of 11.8°F (-11.2°C).

What is the average humidity in December?

The average relative humidity in December is 75%.

How many days does it rain in December?

In December, the rain falls for 3.3 days. Throughout December, 0.51" (13mm) of precipitation is accumulated.

How much does it snow in December?

In Jaroso, in December, during 9.7 snowfall days, 4.06" (103mm) of snow is typically accumulated.

What is the month with the shortest days?

With an average of 9h and 42min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

In Jaroso, Colorado, the average day length in December is 9h and 40min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 6:57 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:56 pm MST.

How many hours of sunshine does Jaroso have in December?

In Jaroso, the average sunshine duration in December is 6.6h.

What are the months with the lowest UV index?

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

What is the UV index intensity in December?

In Jaroso, Colorado, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health 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
Jaroso, CO

Average temperature in December - Jaroso, CO
  • Average high temperature in December: 32.2°F

The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in December: 11.8°F

The month with the highest average low temperature is July (50.2°F).
The coldest month (with the lowest average low temperature) is January (9.3°F).

Average pressure in December
Jaroso, CO

Average pressure in December - Jaroso, CO
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is April (29.89"Hg).

Average wind speed in December
Jaroso, CO

Average wind speed in December - Jaroso, CO
  • Average wind speed in December: 6.4mph

The windiest months (with the highest average wind speed) are April and May (8.9mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).

Average humidity in December
Jaroso, CO

Average humidity in December - Jaroso, CO
  • Average humidity in December: 75%

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

Average rainfall in December
Jaroso, CO

Average rainfall in December - Jaroso, CO
  • Average rainfall in December: 0.51"

The wettest month (with the highest rainfall) is July (1.61").
The driest month (with the least rainfall) is November (0.43").

Average rainfall days in December
Jaroso, CO

Average rainfall days in December - Jaroso, CO
  • Average rainfall days in December: 3.3 days

The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is November (1.3 days).

Average snowfall in December
Jaroso, CO

Average snowfall in December - Jaroso, CO
  • Average snowfall in December: 4.06"

The month with the highest snowfall is March (5.55").
The months with the least snowfall are July and August (0").

Average snowfall days in December
Jaroso, CO

Average snowfall days in December - Jaroso, CO
  • Average snowfall days in December: 9.7 days

The month with the highest number of snowfall days is February (10.1 days).
The months with the least snowfall days are July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in December: 6h and 4min

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

Average sunshine days in December
Jaroso, CO

Average sunshine days in December - Jaroso, CO
  • Average sunshine days in December: 21.3 days

The month with the most sunshine days is October (24.1 days).
The month with the least sunshine days is July (13.3 days).

Average UV index in December
Jaroso, CO

Average UV index in December - Jaroso, 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
Jaroso, CO

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

The month with the most cloud cover is January (Cloud cover 31).
The months with the least cloud cover are June and October (Cloud cover 14).

Average visibility in December
Jaroso, CO

Average visibility in December - Jaroso, 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 month with the lowest visibility is January (4mi).

Jaroso, Colorado, USA

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