December weather forecast and climate
Aurora, CO

Beautiful city lights and speedy car lights on the highway in Aurora City, Colorado
Beautiful city lights and speedy car lights on the highway in Aurora City, Colorado

Weather in December

December, the first month of the winter, in Aurora, is still a cold month, with temperature in the range of an average low of 21.7°F (-5.7°C) and an average high of 40.1°F (4.5°C).

Temperature

The coldest month is December, with an average high-temperature of 40.1°F (4.5°C) and an average low-temperature of 21.7°F (-5.7°C).

Humidity

In Aurora, the average relative humidity is 61%.

Rainfall

December is the month with the least rainfall. Rain falls for 4.4 days and accumulates 0.43" (11mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Aurora, during December, snow falls for 7.8 days and regularly aggregates up to 2.91" (74mm) of snow. In Aurora, during the entire year, snow falls for 41.6 days, and aggregates up to 27.95" (710mm) of snow.

Daylight

With an average of 9.4h of daylight, December has the shortest days of the year.

Sunshine

The average sunshine in Aurora is 6.9h.

UV index

Months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 2 transform into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 Aurora?

With an average high-temperature of 40.1°F (4.5°C) and an average low-temperature of 21.7°F (-5.7°C), December is the coldest month in Aurora.

What is the average humidity in December in Aurora?

In Aurora, the average relative humidity in December is 61%.

What is the driest month in Aurora?

The month with the least rainfall is December when the rain falls for 4.4 days and typically collects 0.43" (11mm) of precipitation.

How many days does it rain in December in Aurora?

In Aurora, Colorado, during December, the rain falls for 4.4 days and regularly aggregates up to 0.43" (11mm) of precipitation.

How much does it snow in Aurora in December?

In Aurora, in December, during 7.8 snowfall days, 2.91" (74mm) of snow is typically accumulated.

What is the month with the shortest days in Aurora?

December has the shortest days of the year in Aurora, with an average of 9.4h of daylight.

How many hours of daylight does Aurora have in December?

In December, the average length of the day in Aurora is 9.4h.

How long on average sun shines in December in Aurora?

In December, the average sunshine in Aurora, Colorado, is 6.9h.

When is the lowest UV index in Aurora?

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

What is the UV index intensity in December in Aurora?

In Aurora, Colorado, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health threat from the exposure to the Sun's UV radiation.

Average temperature in December
Aurora, CO

Average temperature in December - Aurora, CO
  • Average high temperature in December: 40.1°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is December (40.1°F).

  • Average low temperature in December: 21.7°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is December (21.7°F).

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Average pressure in December
Aurora, CO

Average pressure in December - Aurora, CO
  • Average pressure in December: 30.11"

The month with the highest atmospheric pressure is January (30.13").
Months with the lowest atmospheric pressure are April and June (29.9").

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Average wind speed in December
Aurora, CO

Average wind speed in December - Aurora, CO
  • Average wind speed in December: 6.5mph

The windiest month (with the highest average wind speed) is April (8mph).
The calmest months (with the lowest average wind speed) are September and December (6.5mph).

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Average humidity in December
Aurora, CO

Average humidity in December - Aurora, CO
  • Average humidity in December: 61%

Months with the highest relative humidity are January and February (64%).
The month with the lowest relative humidity is August (42%).

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Average rainfall in December
Aurora, CO

Average rainfall in December - Aurora, CO
  • Average rainfall in December: 0.43"

The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is December (0.43").

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Average rainfall days in December
Aurora, CO

Average rainfall days in December - Aurora, CO
  • Average rainfall days in December: 4.4 days

The month with the highest number of rainy days is July (14.1 days).
The month with the least rainy days is February (3 days).

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Average snowfall in December
Aurora, CO

Average snowfall in December - Aurora, CO
  • Average snowfall in December: 2.91"

The month with the highest snowfall is March (4.49").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Aurora, CO

Average snowfall days in December - Aurora, CO
  • Average snowfall days in December: 7.8 days

The month with the highest number of snowfall days is February (8 days).
Months with the least snowfall days are June, July and August (0 days).

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

Average daylight in December / Average sunshine in December - Aurora, CO
  • Average daylight in December: 9.4h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in December: 6.9h

Months with the most sunshine are June and July (Average sunshine: 11.9h).
The month with the least sunshine is February (Average sunshine: 6.7h).

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Average sunshine days in December
Aurora, CO

Average sunshine days in December - Aurora, CO
  • Average sunshine days in December: 21.8 days

The month with the most sunshine days is January (22.9 days).
The month with the least sunshine days is July (12.2 days).

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Average UV index in December
Aurora, CO

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

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

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Average cloud cover in December
Aurora, CO

Average cloud cover in December - Aurora, CO
  • Average cloud cover in December: 23

The month with the most cloud cover is April (Cloud cover 27).
The month with the least cloud cover is September (Cloud cover 15).

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Average visibility in December
Aurora, CO

Average visibility in December - Aurora, CO
  • Average visibility in December: 6mi

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

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