December weather forecast and climate
Kentfield, CA

Weather in December

The first month of the winter, December, is also a moderate month in Kentfield, California, with temperature in the range of an average low of 45.3°F (7.4°C) and an average high of 55.4°F (13°C).

Temperature

December is the coldest month, with an average high-temperature of 55.4°F (13°C) and an average low-temperature of 45.3°F (7.4°C).

Humidity

In Kentfield, the average relative humidity is 73%.

Rainfall

In Kentfield, it is raining for 7.2 days, with typically 0.67" (17mm) of accumulated precipitation. Throughout the year, in Kentfield, California, there are 48 rainfall days, and 3.94" (100mm) of precipitation is accumulated.

Daylight

With an average of 9.6h of daylight, December has the shortest days of the year in Kentfield.

Sunshine

The month with the least sunshine in Kentfield, California, is December, with an average of 5.5h 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 moderate threat to health from unsafe exposure to the UV radiation for the average person.
Note: The average daily UV index of 3 in December transform into the following instructions:
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.
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FAQ

What is the coldest month in Kentfield?

With an average high-temperature of 55.4°F (13°C) and an average low-temperature of 45.3°F (7.4°C), December is the coldest month.

What is the temperature in December in Kentfield?

In December, in Kentfield, California, the average high-temperature is 55.4°F (13°C), and the average low-temperature is 45.3°F (7.4°C).

What is the average humidity in December in Kentfield?

The average relative humidity in December in Kentfield is 73%.

How many days does it rain in December in Kentfield?

In Kentfield, California, in December, during 7.2 rainfall days, 0.67" (17mm) of precipitation is typically accumulated.

What is the month with the shortest days in Kentfield?

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

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

The average length of the day in December in Kentfield is 9.6h.

What is the month with the least sunshine in Kentfield?

With an average of 5.5h of sunshine, December has the least sunshine of the year in Kentfield.

How many hours of sunshine does Kentfield have in December?

In Kentfield, California, the average sunshine in December is 5.5h.

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

Months with the lowest UV index in Kentfield, California, are January, February, November and December, with an average maximum UV index of 3.

What is the UV index reading in December in Kentfield?

The average daily maximum UV index in December in Kentfield, California, is 3. A UV Index estimate of 3 to 5 represents a medium hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in December
Kentfield, CA

Average temperature in December - Kentfield, CA
  • Average high temperature in December: 55.4°F

The warmest month (with the highest average high temperature) is September (72.3°F).
The month with the lowest average high temperature is December (55.4°F).

  • Average low temperature in December: 45.3°F

The month with the highest average low temperature is September (56.1°F).
The coldest month (with the lowest average low temperature) is December (45.3°F).

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Average pressure in December
Kentfield, CA

Average pressure in December - Kentfield, CA
  • Average pressure in December: 30.1"

The month with the highest atmospheric pressure is January (30.13").
Months with the lowest atmospheric pressure are June, August and September (29.92").

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Average wind speed in December
Kentfield, CA

Average wind speed in December - Kentfield, CA
  • Average wind speed in December: 6.2mph

The windiest month (with the highest average wind speed) is May (7.8mph).
The calmest months (with the lowest average wind speed) are October and November (5.5mph).

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Average humidity in December
Kentfield, CA

Average humidity in December - Kentfield, CA
  • Average humidity in December: 73%

The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is October (68%).

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Average rainfall in December
Kentfield, CA

Average rainfall in December - Kentfield, CA
  • Average rainfall in December: 0.67"

The wettest month (with the highest rainfall) is February (0.87").
The driest months (with the least rainfall) are June, July, August and September (0.04").

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Average rainfall days in December
Kentfield, CA

Average rainfall days in December - Kentfield, CA
  • Average rainfall days in December: 7.2 days

The month with the highest number of rainy days is March (8.8 days).
Months with the least rainy days are June and August (1.2 days).

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

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

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in December: 5.5h

The month with the most sunshine is July (Average sunshine: 11.2h).
The month with the least sunshine is December (Average sunshine: 5.5h).

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Average sunshine days in December
Kentfield, CA

Average sunshine days in December - Kentfield, CA
  • Average sunshine days in December: 22.1 days

The month with the most sunshine days is June (26.4 days).
The month with the least sunshine days is March (20.7 days).

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Average UV index in December
Kentfield, CA

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

Months with the highest UV index are April, June, July, August and September (UV index 5).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in December
Kentfield, CA

Average cloud cover in December - Kentfield, CA
  • Average cloud cover in December: 38

The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is September (Cloud cover 19).

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Average visibility in December
Kentfield, CA

Average visibility in December - Kentfield, 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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