Brentwood
California, USA
Long-term weather forecast
Long-term weather forecast

Monthly 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
January in Brentwood, California, is a moderate winter month, with average temperature fluctuating between 56.1°F (13.4°C) and 41.5°F (5.3°C). In Brentwood, California, the average high-temperature in January is practically the same as in December - a mild 56.1°F (13.4°C). Weather in January »

The last month of the winter, February, is also a moderate month in Brentwood, California, with average temperature ranging between min 42.4°F (5.8°C) and max 59.7°F (15.4°C). In February, the average high-temperature is practically the same as in January - a still mild 59.7°F (15.4°C). Weather in February »

The first month of the spring, March, is a comfortable month in Brentwood, California, with average temperature varying between 63.5°F (17.5°C) and 43.9°F (6.6°C). In March, the average high-temperature is practically the same as in February - an enjoyable 63.5°F (17.5°C). Weather in March »

April is an agreeable spring month in Brentwood, California, with average temperature ranging between max 69.4°F (20.8°C) and min 46.6°F (8.1°C). In April, the average high-temperature slightly increases, from an enjoyable 63.5°F (17.5°C) in March, to an agreeable 69.4°F (20.8°C). Weather in April »

May, the last month of the spring, in Brentwood, is a warm month, with average temperature fluctuating between 50.5°F (10.3°C) and 75.6°F (24.2°C). In Brentwood, the average high-temperature slightly increases, from a pleasant 69.4°F (20.8°C) in April, to a moderately hot 75.6°F (24.2°C). Weather in May »

The first month of the summer, June, is still a warm month in Brentwood, California, with temperature in the range of an average high of 84.4°F (29.1°C) and an average low of 55°F (12.8°C). In June, the average high-temperature marginally rises, from a moderately hot 75.6°F (24.2°C) in May, to a still warm 84.4°F (29.1°C). Weather in June »

July is a hot summer month in Brentwood, California, with average temperature ranging between max 88.5°F (31.4°C) and min 56.5°F (13.6°C). The warmest month is July, with an average high-temperature of 88.5°F (31.4°C) and an average low-temperature of 56.5°F (13.6°C). The average heat index in July is estimated at a hot 93.2°F (34°C). Weather in July »

The last month of the summer, August, is also a hot month in Brentwood, California, with average temperature varying between 57.4°F (14.1°C) and 87.4°F (30.8°C). In Brentwood, the average high-temperature in August is essentially the same as in July - a still hot 87.4°F (30.8°C). Weather in August »

The first month of the autumn, September, is also a moderately hot month in Brentwood, California, with temperature in the range of an average low of 57.7°F (14.3°C) and an average high of 85.3°F (29.6°C). In September, the average high-temperature is relatively the same as in August - a warm 85.3°F (29.6°C). Weather in September »

October, the same as September, is a moderately hot autumn month in Brentwood, California, with average temperature varying between 54°F (12.2°C) and 75.9°F (24.4°C). In Brentwood, the average high-temperature in October drops, from 85.3°F (29.6°C) in September, to a still warm 75.9°F (24.4°C). Weather in October »

November, the last month of the autumn, in Brentwood, is another comfortable month, with average temperature varying between 63.9°F (17.7°C) and 46.6°F (8.1°C). In November, the average high-temperature drops, from a moderately hot 75.9°F (24.4°C) in October, to an enjoyable 63.9°F (17.7°C). Weather in November »

The first month of the winter, December, is still a cool month in Brentwood, California, with temperature in the range of an average high of 55°F (12.8°C) and an average low of 41.7°F (5.4°C). The coldest month is December, with an average high-temperature of 55°F (12.8°C) and an average low-temperature of 41.7°F (5.4°C). Weather in December »

What is the most humid month in Brentwood?

With an average relative humidity of 74%, January is the most humid month in Brentwood.

How much does it rain in Brentwood?

Throughout the year, there are 62 rainfall days, and 10.16" (258mm) of precipitation is accumulated.

How many days does it snow in Brentwood?

In Brentwood, California, during the entire year, snow falls for 0.1 days.

When it does not snow in Brentwood?

January through November are months without snowfall.

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

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Brentwood.

What is the wettest month in Brentwood?

The month with the most rainfall in Brentwood is February when the rain falls for 7.8 days and typically aggregates up to 2.09" (53mm) of precipitation.

When are the longest days in Brentwood?

June has the longest days of the year, with an average of 14.8h of daylight.

What are the months with the highest UV index in Brentwood?

June through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the warmest month in Brentwood?

July is the warmest month, with an average high-temperature of 88.5°F (31.4°C) and an average low-temperature of 56.5°F (13.6°C).

What is the driest month in Brentwood?

Months with the least rainfall in Brentwood, California, are July and August Rain falls for 1.3 days and accumulates 0.04" (1mm) of rain.

What month has the most sunshine in Brentwood?

The month with the most sunshine is July, with an average of 12.1h of sunshine.

What is the least humid month in Brentwood?

The least humid month is September, with an average relative humidity of 52%.

What is the coldest month in Brentwood?

With an average high-temperature of 55°F (12.8°C) and an average low-temperature of 41.7°F (5.4°C), December is the coldest month.

When does it snow in Brentwood?

December is the only month when snow falls in Brentwood.

What is the snowiest month in Brentwood?

December has the most snowfall days of the year. Snow falls for 0.1 days.

What is the month with the shortest days in Brentwood?

December has the shortest days of the year, with an average of 9.6h of daylight.

What is the month with the least sunshine in Brentwood?

The month with the least sunshine in Brentwood is December, with an average of 5.8h of sunshine.
Average temperature - Brentwood, CA
Average humidity - Brentwood, CA
Average rainfall - Brentwood, CA

The wettest month (with the highest rainfall) is February (2.09").
Driest months (with the lowest rainfall) are July and August (0.04").

Average rainfall days - Brentwood, CA

The month with the highest number of rainy days is March (12.3 days).
The month with the lowest number of rainy days is August (0.8 days).

Average snowfall days - Brentwood, CA

The month with the highest number of snowfall days is December (0.1 days).
Months with the lowest number of snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

Average daylight / Average sunshine - Brentwood, CA

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

The month with most sunshine is July (Average sunshine: 12.1h).
The month with least sunshine is December (Average sunshine: 5.8h).

Average UV index - Brentwood, CA