December weather forecast
Clarksburg, CA

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Weather in December

December, the first month of the winter in Clarksburg, is also a fresh month, with an average temperature varying between 54.5°F (12.5°C) and 41.5°F (5.3°C).

Temperature

In Clarksburg, California, December is the coldest month, with temperatures averaging a high of 54.5°F (12.5°C) and a low of 41.5°F (5.3°C).

Humidity

The average relative humidity in December in Clarksburg is 72%.

Rainfall

In Clarksburg, in December, it is raining for 9.5 days, with typically 1.42" (36mm) of accumulated precipitation. Throughout the year, in Clarksburg, California, there are 66.9 rainfall days, and 8.9" (226mm) of precipitation is accumulated.

Daylight

December has the shortest days of the year in Clarksburg, with an average of 9h and 30min of daylight.
On the first day of December in Clarksburg, California, sunrise is at 7:05 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:55 pm PST.

Sunshine

With an average of 5.4h of sunshine, December has the least sunshine of the year.

UV index

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Clarksburg. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, an average UV index of 3 transforms into the following instructions:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.

Frequently asked questions

What are the coldest months in Clarksburg?

December brings the lowest temperatures, with an average high of 54.5°F (12.5°C) and an average low of 41.5°F (5.3°C).

What is the temperature in December in Clarksburg?

During December, Clarksburg experiences an average high-temperature of 54.5°F (12.5°C) and a low-temperature of 41.5°F (5.3°C). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is estimated at 91.4°F (33°C).

What is the average humidity in December in Clarksburg?

In Clarksburg, the average relative humidity in December is 72%.

How many days does it rain in December in Clarksburg?

In Clarksburg, California, in December, it is raining for 9.5 days, with typically 1.42" (36mm) of accumulated precipitation.

What is the month with the shortest days in Clarksburg?

The month with the shortest days in Clarksburg is December, with an average of 9h and 30min of daylight.

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

In December, the average day length is 9h and 32min.

What time are sunrise and sunset in December in Clarksburg?

On the first day of December in Clarksburg, California, sunrise is at 7:05 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:55 pm PST.

What is the month with the least sunshine in Clarksburg?

With an average of 5.4h of sunshine, December has the least sunshine of the year in Clarksburg.

How many hours of sunshine does Clarksburg have in December?

The average sunshine duration in December in Clarksburg is 5.4h.

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

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

What is the UV index reading in December in Clarksburg?

In December, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Clarksburg, CA

Average temperature in December - Clarksburg, CA
  • Average high temperature in December: 54.5°F

The warmest month (with the highest average high temperature) is July (94.5°F).
The month with the lowest average high temperature is December (54.5°F).

  • Average low temperature in December: 41.5°F

The month with the highest average low temperature is August (59.2°F).
The coldest months (with the lowest average low temperature) are January and December (41.5°F).

Average pressure in December
Clarksburg, CA

Average pressure in December - Clarksburg, CA
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in December
Clarksburg, CA

Average wind speed in December - Clarksburg, CA
  • Average wind speed in December: 5.8mph

The windiest month (with the highest average wind speed) is February (6.5mph).
The calmest month (with the lowest average wind speed) is November (5mph).

Average humidity in December
Clarksburg, CA

Average humidity in December - Clarksburg, CA
  • Average humidity in December: 72%

The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is September (45%).

Average rainfall in December
Clarksburg, CA

Average rainfall in December - Clarksburg, CA
  • Average rainfall in December: 1.42"

The wettest month (with the highest rainfall) is February (1.73").
The driest month (with the least rainfall) is August (0.04").

Average rainfall days in December
Clarksburg, CA

Average rainfall days in December - Clarksburg, CA
  • Average rainfall days in December: 9.5 days

The month with the highest number of rainy days is March (12.4 days).
The month with the least rainy days is July (1.2 days).

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

Average daylight in December / Average sunshine in December - Clarksburg, CA
  • Average daylight in December: 9h and 3min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in December: 5h and 2min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

Average sunshine days in December
Clarksburg, CA

Average sunshine days in December - Clarksburg, CA
  • Average sunshine days in December: 21 days

The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is March (17.9 days).

Average UV index in December
Clarksburg, CA

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

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

Average cloud cover in December
Clarksburg, CA

Average cloud cover in December - Clarksburg, CA
  • Average cloud cover in December: 39

The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 6).

Average visibility in December
Clarksburg, CA

Average visibility in December - Clarksburg, CA
  • 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).

Clarksburg, California, USA

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