December weather forecast and climate
Sonoma, CA

Neat rows of vines in a vineyard farm in Sonoma, California, the sun rays beaming through the cloudy sunset sky, and distant hilly silhouettes
Neat rows of vines in a vineyard farm in Sonoma, California, the sun rays beaming through the cloudy sunset sky, and distant hilly silhouettes
The first month of the winter, December, is also a mild month in Sonoma, California, with average temperature varying between 57.6°F (14.2°C) and 37°F (2.8°C).

Temperature

In Sonoma, the average high-temperature is 57.6°F (14.2°C), and the average low-temperature is 37°F (2.8°C).

Rainfall

In Sonoma, it is raining for 11 days, with typically 5.2" (131.6mm) of accumulated precipitation. In Sonoma, California, during the entire year, the rain falls for 65 days and collects up to 29.4" (747.4mm) of precipitation.

Daylight

With an average of 9.5h of daylight, December has the shortest days of the year.

What is the temperature in December in Sonoma?

The average high-temperature, in December, in Sonoma, is 57.6°F (14.2°C), while the average low-temperature is 37°F (2.8°C).

How much does it rain in Sonoma in December?

In Sonoma, California, in December, during 11 rainfall days, 5.2" (131.6mm) of precipitation is typically accumulated.

What is the month with the shortest days in Sonoma?

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

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

The average length of the day in December in Sonoma, California, is 9.5h.
Average temperature in December - Sonoma, CA
  • Average high temperature in December: 57.5°F

The warmest month (with the highest average high temperature) is July (88.6°F).
The month with the lowest average high temperature is January (57.2°F).

  • Average low temperature in December: 37.1°F

The month with the highest average low temperature is July (51.2°F).
The coldest month (with the lowest average low temperature) is December (37.1°F).

Average rainfall in December - Sonoma, CA
  • Average rainfall in December: 5.2"

The wettest month (with the highest rainfall) is January (6.1").
The driest month (with the lowest rainfall) is July (0").

Average rainfall days in December - Sonoma, CA
  • Average rainfall days in December: 11 days

Months with the highest number of rainy days are January and December (11 days).
Months with the lowest number of rainy days are July and August (0 days).

Average daylight in December - Sonoma, CA
  • Average daylight in December: 9.5h

The month with the longest days is June (Average daylight: 14.8h).
The month with shortest days is December (Average daylight: 9.5h).

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