December weather forecast
Oak Run, CA

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Weather in December

The first month of the winter, December, is also a frosty month in Oak Run, California, with an average temperature fluctuating between 35.2°F (1.8°C) and 49.3°F (9.6°C).

Temperature

December is the month when Oak Run sees the lowest average temperatures, with a high of 49.3°F (9.6°C) and a low of 35.2°F (1.8°C).

Humidity

In Oak Run, the average relative humidity in December is 73%.

Rainfall

In December, the rain falls for 13.9 days. Throughout December, 4.69" (119mm) of precipitation is accumulated. In Oak Run, during the entire year, the rain falls for 99.5 days and collects up to 30.43" (773mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall in Oak Run. The month with the most snowfall is December, when snow falls for 0.8 days and typically aggregates up to 0.63" (16mm) of snow.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year in Oak Run, California.
On the first day of December in Oak Run, California, sunrise is at 7:13 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 4:51 pm PST.

Sunshine

December has the least sunshine of the year, with an average of 5.5h of sunshine.

UV index

The months with the lowest UV index are February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 2 in December transforms into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Experience reduced UV exposure by about half when donning a wide-brim hat. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
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Frequently asked questions

What is the coldest month in Oak Run?

December, recording an average high temperature of 49.3°F (9.6°C) and a low temperature of 35.2°F (1.8°C), is Oak Run's coldest month.

What are December temperatures in Oak Run?

December temperatures in Oak Run vary between a high-temperature of 49.3°F (9.6°C) and a low-temperature of 35.2°F (1.8°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in June is estimated at 84.2°F (29°C).

What is the average humidity in December in Oak Run?

In December, the average relative humidity is 73%.

How much does it rain in Oak Run in December?

In December, in Oak Run, California, the rain falls for 13.9 days. Throughout December, 4.69" (119mm) of precipitation is accumulated.

What is the snowiest month in Oak Run?

December is the month with the most snowfall in Oak Run. Snow falls for 0.8 days and accumulates 0.63" (16mm) of snow.

How many days does it snow in December in Oak Run?

In Oak Run, in December, snow falls for 0.8 days, with typically accumulated 0.63" (16mm) of snow.

What is the month with the shortest days in Oak Run?

The month with the shortest days in Oak Run is December, with an average of 9h and 18min of daylight.

How many hours of daylight does Oak Run have in December?

The average day length in December is 9h and 19min.

When are sunrise and sunset in December in Oak Run?

In December, on the first day of the month, sunrise is at 7:13 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 4:51 pm PST.

What is the month with the least sunshine in Oak Run?

The month with the least sunshine is December, with an average of 5.5h of sunshine.

How many hours of sunshine does Oak Run have in December?

In Oak Run, California, the average sunshine duration in December is 5.5h.

What are the months with the lowest UV index in Oak Run?

The months with the lowest UV index in Oak Run, California, are February, November and December, with an average maximum UV index of 2.

What is the UV index reading in December in Oak Run?

In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Oak Run, CA

Average temperature in December - Oak Run, CA
  • Average high temperature in December: 49.3°F

The warmest month (with the highest average high temperature) is July (92.3°F).
The month with the lowest average high temperature is December (49.3°F).

  • Average low temperature in December: 35.2°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is December (35.2°F).

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Average pressure in December
Oak Run, CA

Average pressure in December - Oak Run, CA
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).

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Average wind speed in December
Oak Run, CA

Average wind speed in December - Oak Run, CA
  • Average wind speed in December: 4.5mph

The windiest months (with the highest average wind speed) are March, April, June and October (5.2mph).
The calmest months (with the lowest average wind speed) are August and November (4.4mph).

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Average humidity in December
Oak Run, CA

Average humidity in December - Oak Run, CA
  • Average humidity in December: 73%

The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is August (35%).

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Average rainfall in December
Oak Run, CA

Average rainfall in December - Oak Run, CA
  • Average rainfall in December: 4.69"

The wettest month (with the highest rainfall) is March (5.91").
The driest month (with the least rainfall) is July (0.08").

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Average rainfall days in December
Oak Run, CA

Average rainfall days in December - Oak Run, CA
  • Average rainfall days in December: 13.9 days

The month with the highest number of rainy days is March (16.8 days).
The month with the least rainy days is August (1.6 days).

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Average snowfall in December
Oak Run, CA

Average snowfall in December - Oak Run, CA
  • Average snowfall in December: 0.63"

The month with the highest snowfall is December (0.63").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in December
Oak Run, CA

Average snowfall days in December - Oak Run, CA
  • Average snowfall days in December: 0.8 days

The month with the highest number of snowfall days is February (1.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Oak Run, CA

Average daylight in December / Average sunshine in December - Oak Run, CA
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 5h and 3min

The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days in December
Oak Run, CA

Average sunshine days in December - Oak Run, CA
  • Average sunshine days in December: 16 days

The month with the most sunshine days is August (27.3 days).
The month with the least sunshine days is March (12.7 days).

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Average UV index in December
Oak Run, CA

Average UV index in December - Oak Run, CA
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are February, November and December (UV index 2).

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Average cloud cover in December
Oak Run, CA

Average cloud cover in December - Oak Run, CA
  • Average cloud cover in December: 40

The month with the most cloud cover is March (Cloud cover 43).
The months with the least cloud cover are July and August (Cloud cover 5).

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Average visibility in December
Oak Run, CA

Average visibility in December - Oak Run, 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).

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Oak Run, California, USA

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