December weather forecast and climate
Auburn, CA

The iconic US Auburn California Historic Landmark Courthouse
The iconic US Auburn California Historic Landmark Courthouse

Weather in December

December, the first month of the winter, in Auburn, is still a cool month, with temperature in the range of an average low of 39.2°F (4°C) and an average high of 53.4°F (11.9°C).

Temperature

December is the coldest month, with an average high-temperature of 53.4°F (11.9°C) and an average low-temperature of 39.2°F (4°C).

Humidity

In December, the average relative humidity in Auburn is 68%.

Rainfall

In Auburn, it is raining for 11.5 days, with typically 4.69" (119mm) of accumulated precipitation. In Auburn, during the entire year, the rain falls for 84.8 days and collects up to 28.86" (733mm) of precipitation.

Snowfall

Months with snowfall in Auburn are February, March and December. December is the first month it typically snows. Throughout December, in the average 0.3 snowfall days, it receives 0.63" (16mm) of snow. In Auburn, during the entire year, snow falls for 1.2 days, and aggregates up to 2.09" (53mm) of snow.

Daylight

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

Sunshine

January and December, with an average of 5.8h of sunshine, are months with the least sunshine.

UV index

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Auburn, California. A UV Index reading of 3 to 5 represents a medium vulnerability from the exposure to the Sun's UV rays for the ordinary person.
Note: In December, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. 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 Auburn?

December is the coldest month, with an average high-temperature of 53.4°F (11.9°C) and an average low-temperature of 39.2°F (4°C).

What is the temperature in December in Auburn?

The average high-temperature, in December, in Auburn, is 53.4°F (11.9°C), while the average low-temperature is 39.2°F (4°C).

What is the average humidity in December in Auburn?

In December, the average relative humidity in Auburn is 68%.

How much does it rain in Auburn in December?

In Auburn, California, in December, it is raining for 11.5 days, with typically 4.69" (119mm) of accumulated precipitation.

When does it start to snow in Auburn?

December is the first month it typically snows in Auburn. Throughout December, in the average 0.3 snowfall days, it receives 0.63" (16mm) of snow.

What is the month with the shortest days in Auburn?

The month with the shortest days in Auburn, California, is December, with an average of 9.5h of daylight.

How many hours of daylight does Auburn have in December?

The average length of the day in December is 9.5h.

What is the month with the least sunshine in Auburn?

January and December, with an average of 5.8h of sunshine, are months with the least sunshine in Auburn.

How long on average sun shines in December in Auburn?

In December, the average sunshine in Auburn, California, is 5.8h.

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

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index.

What is the UV index intensity in December in Auburn?

The average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to the UV radiation.

Average temperature in December
Auburn, CA

Average temperature in December - Auburn, CA
  • Average high temperature in December: 53.4°F

The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is December (53.4°F).

  • Average low temperature in December: 39.2°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is December (39.2°F).

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Average pressure in December
Auburn, CA

Average pressure in December - Auburn, CA
  • Average pressure in December: 30.13"

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.9").

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Average wind speed in December
Auburn, CA

Average wind speed in December - Auburn, CA
  • Average wind speed in December: 4.9mph

The windiest months (with the highest average wind speed) are February and March (5.7mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

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Average humidity in December
Auburn, CA

Average humidity in December - Auburn, CA
  • Average humidity in December: 68%

The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is July (38%).

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Average rainfall in December
Auburn, CA

Average rainfall in December - Auburn, CA
  • Average rainfall in December: 4.69"

The wettest month (with the highest rainfall) is March (5.63").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in December
Auburn, CA

Average rainfall days in December - Auburn, CA
  • Average rainfall days in December: 11.5 days

The month with the highest number of rainy days is March (15.4 days).
The month with the least rainy days is July (1 days).

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Average snowfall in December
Auburn, CA

Average snowfall in December - Auburn, CA
  • Average snowfall in December: 0.63"

The month with the highest snowfall is February (1.18").
Months with the least snowfall are January, April, May, June, July, August, September, October and November (0").

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Average snowfall days in December
Auburn, CA

Average snowfall days in December - Auburn, CA
  • Average snowfall days in December: 0.3 days

The month with the highest number of snowfall days is February (0.6 days).
Months with the least snowfall days are January, April, May, June, July, August, September, October and November (0 days).

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Average daylight in December /
Average sunshine in December
Auburn, CA

Average daylight in December / Average sunshine in December - Auburn, CA
  • 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: 5.8h

The month with the most sunshine is July (Average sunshine: 12.1h).
Months with the least sunshine are January and December (Average sunshine: 5.8).

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Average sunshine days in December
Auburn, CA

Average sunshine days in December - Auburn, CA
  • Average sunshine days in December: 18.7 days

The month with the most sunshine days is July (29.6 days).
The month with the least sunshine days is March (14.6 days).

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Average UV index in December
Auburn, CA

Average UV index in December - Auburn, CA
  • Average UV index in December: 3

Months with the highest UV index are June and July (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in December
Auburn, CA

Average cloud cover in December - Auburn, CA
  • Average cloud cover in December: 34

The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 4).

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Average visibility in December
Auburn, CA

Average visibility in December - Auburn, CA
  • 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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