January 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
January, like December, is a mild winter month in Sonoma, California, with temperature in the range of an average low of 37.2°F (2.9°C) and an average high of 57.2°F (14°C).

Temperature

January is the coldest month, with an average high-temperature of 57.2°F (14°C) and an average low-temperature of 37.2°F (2.9°C).

Rainfall

January is the month with the most rainfall. Rain falls for 11 days and accumulates 6.1" (156mm) of precipitation.

Daylight

In Sonoma, the average length of the day in January is 9.9h.

What is the coldest month in Sonoma?

January is the coldest month in Sonoma, with an average high-temperature of 57.2°F (14°C) and an average low-temperature of 37.2°F (2.9°C).

What is the temperature in January in Sonoma?

The average high-temperature, in January, is 57.2°F (14°C), while the average low-temperature is 37.2°F (2.9°C).

How many days does it rain in January in Sonoma?

In Sonoma, during January, the rain falls for 11 days and regularly aggregates up to 6.1" (156mm) of precipitation.

What is the wettest month in Sonoma?

The month with the most rainfall is January when the rain falls for 11 days and typically aggregates up to 6.1" (156mm) of precipitation.

How many hours of daylight does Sonoma have in January?

In Sonoma, California, the average length of the day in January is 9.9h.
Average temperature in January - Sonoma, CA
  • Average high temperature in January: 57.2°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 January: 37.2°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 January - Sonoma, CA
  • Average rainfall in January: 6.1"

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 January - Sonoma, CA
  • Average rainfall days in January: 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 January - Sonoma, CA
  • Average daylight in January: 9.9h

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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