January weather forecast and climate
Brentwood, CA

An aerial shot of scenic and organized home community in Brentwood City, California
An aerial shot of scenic and organized home community in Brentwood City, California

Temperature

The coldest month is January, with an average high-temperature of 54°F (12.2°C) and an average low-temperature of 39°F (3.9°C).

Rainfall

January is the month with the most rainfall, with 2.7" (67.6mm) of accumulated precipitation.

Daylight

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

What is the coldest month in Brentwood?

With an average high-temperature of 54°F (12.2°C) and an average low-temperature of 39°F (3.9°C), January is the coldest month in Brentwood.

What is the temperature in January in Brentwood?

In Brentwood, in January, the average high-temperature is 54°F (12.2°C), and the average low-temperature is 39°F (3.9°C).

How much does it rain in Brentwood in January?

In Brentwood, California, in January, 2.7" (67.6mm) of precipitation is typically accumulated.

What is the wettest month in Brentwood?

January is the month with the most rainfall in Brentwood, with 2.7" (67.6mm) of accumulated precipitation.

What is the average length of the day in January in Brentwood?

In Brentwood, California, the average length of the day in January is 9.9h.
Average temperature in January - Brentwood, CA
  • Average high temperature in January: 54°F

The warmest month (with the highest average high temperature) is July (92°F).
The month with the lowest average high temperature is January (54°F).

  • Average low temperature in January: 39°F

Months with the highest average low temperature are July and August (59°F).
Coldest months (with the lowest average low temperature) are January and December (39°F).

Average rainfall in January - Brentwood, CA
  • Average rainfall in January: 2.7"

The wettest month (with the highest rainfall) is January (2.7").
Driest months (with the lowest rainfall) are July and August (0").

Average daylight in January - Brentwood, 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: 9.6h).

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