December weather forecast and climate
Granite, CO

Weather in December

December, the first month of the winter, in Granite, is still a freezing cold month, with average temperature ranging between min 2.7°F (-16.3°C) and max 23.5°F (-4.7°C).

Temperature

December is the coldest month, with an average high-temperature of 23.5°F (-4.7°C) and an average low-temperature of 2.7°F (-16.3°C).

Humidity

In December, the average relative humidity in Granite, Colorado, is 83%.

Rainfall

In December, in Granite, the rain falls for 6.6 days. Throughout December, 1.26" (32mm) of precipitation is accumulated. In Granite, during the entire year, the rain falls for 120.6 days and collects up to 19.29" (490mm) of precipitation.

Snowfall

January through December are months with snowfall in Granite. In Granite, in December, snow falls for 17.9 days, with typically accumulated 10.12" (257mm) of snow. In Granite, during the entire year, snow falls for 142.6 days, and aggregates up to 90.39" (2296mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9.5h of daylight.

Sunshine

In December, the average sunshine in Granite is 6h.

UV index

Months with the lowest UV index in Granite are February and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to the UV radiation for average individuals.
Note: In December, the average maximum UV index of 1 translate into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Granite?

The coldest month in Granite, Colorado, is December, with an average high-temperature of 23.5°F (-4.7°C) and an average low-temperature of 2.7°F (-16.3°C).

What is the temperature in December in Granite?

In December, the average high-temperature is 23.5°F (-4.7°C), and the average low-temperature is 2.7°F (-16.3°C).

What is the average humidity in December in Granite?

In December, the average relative humidity in Granite is 83%.

How much does it rain in Granite in December?

In December, in Granite, Colorado, the rain falls for 6.6 days. Throughout December, 1.26" (32mm) of precipitation is accumulated.

How much does it snow in Granite in December?

In December, in Granite, it is snowing for 17.9 days. Throughout December, 10.12" (257mm) of snow is accumulated.

What is the month with the shortest days in Granite?

December has the shortest days of the year, with an average of 9.5h of daylight.

How many hours of daylight does Granite have in December?

In Granite, the average length of the day in December is 9.5h.

How long on average sun shines in December in Granite?

In December, the average sunshine in Granite, Colorado, is 6h.

What are the months with the lowest UV index in Granite?

Months with the lowest UV index in Granite are February and December, with an average maximum UV index of 1.

How high is the UV index in December in Granite?

In Granite, Colorado, the average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a low health threat from unprotected exposure to the UV radiation.

Average temperature in December
Granite, CO

Average temperature in December - Granite, CO
  • Average high temperature in December: 23.5°F

The warmest month (with the highest average high temperature) is July (66.7°F).
The month with the lowest average high temperature is December (23.5°F).

  • Average low temperature in December: 2.7°F

The month with the highest average low temperature is July (40.1°F).
The coldest months (with the lowest average low temperature) are January and December (2.7°F).

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Average pressure in December
Granite, CO

Average pressure in December - Granite, CO
  • Average pressure in December: 30.16"

The month with the highest atmospheric pressure is January (30.2").
The month with the lowest atmospheric pressure is April (29.94").

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Average wind speed in December
Granite, CO

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

The windiest month (with the highest average wind speed) is February (7mph).
The calmest months (with the lowest average wind speed) are July and August (4.6mph).

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Average humidity in December
Granite, CO

Average humidity in December - Granite, CO
  • Average humidity in December: 83%

The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is June (51%).

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Average rainfall in December
Granite, CO

Average rainfall in December - Granite, CO
  • Average rainfall in December: 1.26"

The wettest month (with the highest rainfall) is July (2.83").
The driest month (with the least rainfall) is November (0.91").

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Average rainfall days in December
Granite, CO

Average rainfall days in December - Granite, CO
  • Average rainfall days in December: 6.6 days

The month with the highest number of rainy days is July (20.3 days).
The month with the least rainy days is November (3.9 days).

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Average snowfall in December
Granite, CO

Average snowfall in December - Granite, CO
  • Average snowfall in December: 10.12"

The month with the highest snowfall is March (15.08").
The month with the least snowfall is August (0.31").

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Average snowfall days in December
Granite, CO

Average snowfall days in December - Granite, CO
  • Average snowfall days in December: 17.9 days

The month with the highest number of snowfall days is March (20 days).
The month with the least snowfall days is August (1.3 days).

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

Average daylight in December / Average sunshine in December - Granite, CO
  • Average daylight in December: 9.5h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in December: 6h

The month with the most sunshine is June (Average sunshine: 11.6h).
The month with the least sunshine is February (Average sunshine: 5.7h).

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Average sunshine days in December
Granite, CO

Average sunshine days in December - Granite, CO
  • Average sunshine days in December: 12.6 days

The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is April (6.1 days).

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Average UV index in December
Granite, CO

Average UV index in December - Granite, CO
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 4).
Months with the lowest UV index are February and December (UV index 1).

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Average cloud cover in December
Granite, CO

Average cloud cover in December - Granite, CO
  • Average cloud cover in December: 42

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 17).

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Average visibility in December
Granite, CO

Average visibility in December - Granite, CO
  • Average visibility in December: 4mi

Months with the highest visibility are May, June, July, August, September and October (6mi).
Months with the lowest visibility are January, February and December (4mi).

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