December weather forecast
Rollinsville, CO

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Weather in December

The first month of the winter, December, is also a subzero cold month in Rollinsville, Colorado, with temperature in the range of an average high of 30°F (-1.1°C) and an average low of 13.8°F (-10.1°C).

Temperature

Rollinsville witnesses the coldest weather in December, with temperatures averaging a high of 30°F (-1.1°C) and a low of 13.8°F (-10.1°C).

Humidity

The average relative humidity in December is 71%.

Rainfall

In Rollinsville, during December, the rain falls for 4.8 days and regularly aggregates up to 0.79" (20mm) of precipitation. In Rollinsville, during the entire year, the rain falls for 112.5 days and collects up to 21.65" (550mm) of precipitation.

Snowfall

January through June, August through December are months with snowfall. In Rollinsville, in December, during 11.9 snowfall days, 6.42" (163mm) of snow is typically accumulated. Throughout the year, in Rollinsville, there are 94.8 snowfall days, and 86.42" (2195mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Rollinsville, Colorado, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:05 am and sunset at 4:37 pm. On the last day of December, in Rollinsville, Colorado, sunrise is at 7:23 am and sunset at 4:47 pm MST.

Sunshine

In Rollinsville, the average sunshine in December is 6.4h.

UV index

January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Rollinsville. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.
Note: In December, the maximum UV index of 2 translates into these guidelines:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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Frequently asked questions

What time of the year is the coldest in Rollinsville?

December is the coldest month, with the temperature often reaching an average high of 30°F (-1.1°C) and an average low of 13.8°F (-10.1°C).

How cold is it in Rollinsville in December?

The average high-temperature and low-temperature in Rollinsville, Colorado, during December are 30°F (-1.1°C) and 13.8°F (-10.1°C) respectively.

What is the average humidity in December in Rollinsville?

In Rollinsville, Colorado, the average relative humidity in December is 71%.

How much does it rain in Rollinsville in December?

In Rollinsville, Colorado, during December, the rain falls for 4.8 days and regularly aggregates up to 0.79" (20mm) of precipitation.

How much does it snow in Rollinsville in December?

In December, in Rollinsville, it is snowing for 11.9 days. Throughout December, 6.42" (163mm) of snow is accumulated.

What is the month with the shortest days in Rollinsville?

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

What is the average length of the day in December in Rollinsville?

The average day length in December is 9h and 23min.

When is the sunrise / sunset in December in Rollinsville?

In December, on the first day of the month, sunrise is at 7:05 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:47 pm MST.

How many hours of sunshine does Rollinsville have in December?

In Rollinsville, Colorado, the average sunshine duration in December is 6.4h.

What is the month with the lowest UV index in Rollinsville?

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

What is the UV index reading in December in Rollinsville?

The average daily maximum UV index in December in Rollinsville, Colorado, is 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to 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
Rollinsville, CO

Average temperature in December - Rollinsville, CO
  • Average high temperature in December: 30°F

The warmest month (with the highest average high temperature) is July (73.9°F).
The month with the lowest average high temperature is December (30°F).

  • Average low temperature in December: 13.8°F

The month with the highest average low temperature is July (49.6°F).
The coldest month (with the lowest average low temperature) is February (13.5°F).

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Average pressure in December
Rollinsville, CO

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is April (29.92"Hg).

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Average wind speed in December
Rollinsville, CO

Average wind speed in December - Rollinsville, CO
  • Average wind speed in December: 9.3mph

The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.9mph).

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Average humidity in December
Rollinsville, CO

Average humidity in December - Rollinsville, CO
  • Average humidity in December: 71%

The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is June (48%).

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Average rainfall in December
Rollinsville, CO

Average rainfall in December - Rollinsville, CO
  • Average rainfall in December: 0.79"

The wettest month (with the highest rainfall) is May (3.7").
The driest month (with the least rainfall) is January (0.71").

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Average rainfall days in December
Rollinsville, CO

Average rainfall days in December - Rollinsville, CO
  • Average rainfall days in December: 4.8 days

The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is November (2.6 days).

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Average snowfall in December
Rollinsville, CO

Average snowfall in December - Rollinsville, CO
  • Average snowfall in December: 6.42"

The month with the highest snowfall is April (16.54").
The month with the least snowfall is July (0").

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Average snowfall days in December
Rollinsville, CO

Average snowfall days in December - Rollinsville, CO
  • Average snowfall days in December: 11.9 days

The month with the highest number of snowfall days is March (14.5 days).
The month with the least snowfall days is July (0 days).

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

Average daylight in December / Average sunshine in December - Rollinsville, 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 2min

The months with the most sunshine are June, July and August (Average sunshine: 11h and 18min).
The month with the least sunshine is February (Average sunshine: 6h and 6min).

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Average sunshine days in December
Rollinsville, CO

Average sunshine days in December - Rollinsville, CO
  • Average sunshine days in December: 18 days

The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is July (9 days).

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Average UV index in December
Rollinsville, CO

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

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

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Average cloud cover in December
Rollinsville, CO

Average cloud cover in December - Rollinsville, CO
  • Average cloud cover in December: 31

The month with the most cloud cover is May (Cloud cover 36).
The month with the least cloud cover is June (Cloud cover 20).

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Average visibility in December
Rollinsville, CO

Average visibility in December - Rollinsville, 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).

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Rollinsville, Colorado, USA

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