December weather forecast and climate
Aurora, CA

Weather in December

The first month of the winter, December, is also a moderate month in Aurora, California, with temperature in the range of an average low of 41.9°F (5.5°C) and an average high of 55.6°F (13.1°C).

Temperature

The coldest month is December, with an average high-temperature of 55.6°F (13.1°C) and an average low-temperature of 41.9°F (5.5°C).

Humidity

In Aurora, California, the average relative humidity in December is 70%.

Rainfall

In December, in Aurora, the rain falls for 8.2 days. Throughout December, 1.22" (31mm) of precipitation is accumulated. Throughout the year, in Aurora, there are 54.3 rainfall days, and 6.54" (166mm) of precipitation is accumulated.

Daylight

The month with the shortest days in Aurora is December, with an average of 9.6h of daylight.

Sunshine

The month with the least sunshine is December, with an average of 6h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 3 transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the coldest month in Aurora?

With an average high-temperature of 55.6°F (13.1°C) and an average low-temperature of 41.9°F (5.5°C), December is the coldest month in Aurora.

What is the temperature in December in Aurora?

In Aurora, California, in December, the average high-temperature is 55.6°F (13.1°C), and the average low-temperature is 41.9°F (5.5°C).

What is the average humidity in December in Aurora?

The average relative humidity in December in Aurora is 70%.

How much does it rain in Aurora in December?

In Aurora, California, in December, during 8.2 rainfall days, 1.22" (31mm) of precipitation is typically accumulated.

What is the month with the shortest days in Aurora?

The month with the shortest days in Aurora is December, with an average of 9.6h of daylight.

How many hours of daylight does Aurora have in December?

The average length of the day in December in Aurora, California, is 9.6h.

What is the month with the least sunshine in Aurora?

The month with the least sunshine in Aurora, California, is December, with an average of 6h of sunshine.

How many hours of sunshine does Aurora have in December?

The average sunshine in December in Aurora, California, is 6h.

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

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 reading in December in Aurora?

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

Average temperature in December
Aurora, CA

Average temperature in December - Aurora, CA
  • Average high temperature in December: 55.6°F

The warmest month (with the highest average high temperature) is July (97.7°F).
The month with the lowest average high temperature is December (55.6°F).

  • Average low temperature in December: 41.9°F

The month with the highest average low temperature is July (62.1°F).
The coldest months (with the lowest average low temperature) are January and December (41.9°F).

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Average pressure in December
Aurora, CA

Average pressure in December - Aurora, CA
  • Average pressure in December: 30.12"

The month with the highest atmospheric pressure is January (30.15").
The month with the lowest atmospheric pressure is June (29.91").

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Average wind speed in December
Aurora, CA

Average wind speed in December - Aurora, CA
  • Average wind speed in December: 5.7mph

The windiest month (with the highest average wind speed) is June (7.3mph).
The calmest month (with the lowest average wind speed) is November (5.2mph).

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Average humidity in December
Aurora, CA

Average humidity in December - Aurora, CA
  • Average humidity in December: 70%

The month with the highest relative humidity is January (72%).
The month with the lowest relative humidity is July (37%).

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Average rainfall in December
Aurora, CA

Average rainfall in December - Aurora, CA
  • Average rainfall in December: 1.22"

The wettest month (with the highest rainfall) is March (1.3").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in December
Aurora, CA

Average rainfall days in December - Aurora, CA
  • Average rainfall days in December: 8.2 days

The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is August (0.9 days).

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

Average daylight in December / Average sunshine in December - Aurora, CA
  • Average daylight in December: 9.6h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in December: 6h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6h).

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Average sunshine days in December
Aurora, CA

Average sunshine days in December - Aurora, CA
  • Average sunshine days in December: 22 days

The month with the most sunshine days is August (29.2 days).
The month with the least sunshine days is March (19.6 days).

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Average UV index in December
Aurora, CA

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

Months with the highest UV index are June, July and August (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
Aurora, CA

Average cloud cover in December - Aurora, CA
  • Average cloud cover in December: 32

The month with the most cloud cover is March (Cloud cover 33).
The month with the least cloud cover is July (Cloud cover 4).

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Average visibility in December
Aurora, CA

Average visibility in December - Aurora, 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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