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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Scenic and organized home community in Brentwood City, California
Climate and monthly weather forecast
Weather in January
January is a mild winter month in Brentwood, California, with an average temperature ranging between min 41.5°F (5.3°C) and max 56.1°F (13.4°C). The transition into January reveals an average high-temperature of a refreshing 56.1°F (13.4°C), mirroring a close resemblance to December. Weather in January »
Weather in February
The last month of the winter, February, is another refreshing month in Brentwood, California, with temperature in the range of an average low of 42.4°F (5.8°C) and an average high of 59.7°F (15.4°C). Brentwood's February showcases an average high-temperature of a still refreshing 59.7°F (15.4°C), hardly distinct from January's 56.1°F (13.4°C). Weather in February »
Weather in March
March, the first month of the spring in Brentwood, is a comfortable month, with an average temperature fluctuating between 43.9°F (6.6°C) and 63.5°F (17.5°C). The unfolding of March shows an average high-temperature of a comfortable 63.5°F (17.5°C), indicating a slight variance from February's 59.7°F (15.4°C). Weather in March »
Weather in April
April is a pleasant spring month in Brentwood, California, with an average temperature ranging between min 46.6°F (8.1°C) and max 69.4°F (20.8°C). April brings a slight increase in the average high-temperature, progressing from an enjoyable 63.5°F (17.5°C) in March to an agreeable 69.4°F (20.8°C). Weather in April »
Weather in May
The last month of the spring, May, is a moderately hot month in Brentwood, California, with temperature in the range of an average low of 50.5°F (10.3°C) and an average high of 75.6°F (24.2°C). As Brentwood enters May, the average high-temperature marginally increases from the an agreeable 69.4°F (20.8°C) of April to a moderately hot 75.6°F (24.2°C). Weather in May »
Weather in June
June, the first month of the summer in Brentwood, is still a warm month, 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). The beginning of June marks a minor shift in the average high-temperature, moving from May's moderately hot 75.6°F (24.2°C) to a still warm 84.4°F (29.1°C). Weather in June »
Weather in July
July is a hot summer month in Brentwood, California, with an average temperature varying between 56.5°F (13.6°C) and 88.5°F (31.4°C). In Brentwood, July is the warmest month, with temperatures averaging a high of 88.5°F (31.4°C) and a low of 56.5°F (13.6°C). July's average heat index is evaluated at a tropical 93.2°F (34°C). Weather in July »
Weather in August
August, the last month of the summer in Brentwood, is also a hot month, with an average temperature ranging between max 87.4°F (30.8°C) and min 57.4°F (14.1°C). Brentwood records an average high-temperature of a still tropical 87.4°F (30.8°C) in August, maintaining a close correlation with July's 88.5°F (31.4°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a warm 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). The average high-temperature during September registers at a warm 85.3°F (29.6°C), closely corresponding to the preceding month. Weather in September »
Weather in October
October, like September, in Brentwood, California, is a moderately hot autumn month, with an average temperature varying between 75.9°F (24.4°C) and 54°F (12.2°C). A change in temperatures is noted as September gives way to October, with average highs reducing from 85.3°F (29.6°C) to a still warm 75.9°F (24.4°C). Weather in October »
Weather in November
November, the last month of the autumn in Brentwood, is also an enjoyable month, with an average temperature fluctuating between 63.9°F (17.7°C) and 46.6°F (8.1°C). The shift from October to November involves a decrease in the average high-temperature, dropping from a moderately hot 75.9°F (24.4°C) to a comfortable 63.9°F (17.7°C). Weather in November »
Weather in December
The first month of the winter, December, is still a cool month in Brentwood, California, with temperature in the range of an average low of 41.7°F (5.4°C) and an average high of 55°F (12.8°C). With its high average temperature of 55°F (12.8°C) and a low of 41.7°F (5.4°C), December is regarded as the coldest month. Weather in December »
Updated: Feb 9, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the most humid month in Brentwood?
January is the most humid month in Brentwood, with an average relative humidity of 74%.
How much does it rain in Brentwood?
In Brentwood, California, during the entire year, the rain falls for 62 days and collects up to 10.16" (258mm) of precipitation.
When it does not snow in Brentwood?
In Brentwood, California, snow does not fall in January through November.
How many days does it snow in Brentwood?
Throughout the year, in Brentwood, California, there are 0.1 snowfall days.
What is the month 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.
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 is Daylight Saving Time (DST) in Brentwood?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.
When are the longest days in Brentwood?
The month with the longest days in Brentwood, California, is June, with an average of 14h and 48min of daylight.
When is the highest UV index in Brentwood?
The months with the highest UV index in Brentwood, California, are June through August, with an average maximum UV index of 6.
What time of the year is the hottest in Brentwood?
July, recognised by an average high temperature of 88.5°F (31.4°C) and a low of 56.5°F (13.6°C), is Brentwood's warmest month.
What is the driest month in Brentwood?
July and August are months with the least rain in Brentwood when the rain falls for 1.3 days and typically aggregates up to 0.04" (1mm) of rain.
What month has the most sunshine in Brentwood?
July has the most sunshine of the year, with an average of 12.1h of sunshine.
What is the least humid month in Brentwood?
September is the least humid month in Brentwood, with an average relative humidity of 52%.
What is the coldest time of year in Brentwood?
Brentwood's coldest month, December, registers temperatures that range from a high of 55°F (12.8°C) to a low of 41.7°F (5.4°C).
When does it snow in Brentwood?
The only month with snowfall is December.
What is the snowiest month in Brentwood?
December has the most snowfall days of the year in Brentwood. Snow falls for 0.1 days.
What is the month with the shortest days in Brentwood?
With an average of 9h and 36min of daylight, December has the shortest days of the year in Brentwood, California.
What is the month with the least sunshine in Brentwood?
December has the least sunshine of the year, with an average of 5.8h of sunshine.
Average temperature
Brentwood, CA
The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is December (55°F).
The month with the highest average low temperature is September (57.7°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).
Average pressure
Brentwood, CA
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
30.03"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.92"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.92"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Brentwood, CA
- Average wind speed in January:
4.5mph - Average wind speed in February:
5.7mph - Average wind speed in March:
6mph - Average wind speed in April:
6.8mph - Average wind speed in May:
7.6mph - Average wind speed in June:
7.8mph
- Average wind speed in July:
7.5mph - Average wind speed in August:
7mph - Average wind speed in September:
6.2mph - Average wind speed in October:
5.5mph - Average wind speed in November:
4.5mph - Average wind speed in December:
5mph
The windiest month (with the highest average wind speed) is June (7.8mph).
The calmest months (with the lowest average wind speed) are January and November (4.5mph).
Average humidity
Brentwood, CA
The month with the highest relative humidity is January (74%).
The month with the lowest relative humidity is September (52%).
Average rainfall
Brentwood, CA
- Average rainfall in January:
1.89" - Average rainfall in February:
2.09" - Average rainfall in March:
1.77" - Average rainfall in April:
0.55" - Average rainfall in May:
0.43" - Average rainfall in June:
0.08"
- Average rainfall in July:
0.04" - Average rainfall in August:
0.04" - Average rainfall in September:
0.08" - Average rainfall in October:
0.51" - Average rainfall in November:
1.1" - Average rainfall in December:
1.57"
The wettest month (with the highest rainfall) is February (2.09").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days
Brentwood, CA
- Average rainfall days in January:
8.6 days - Average rainfall days in February:
7.8 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
6.3 days - Average rainfall days in May:
4 days - Average rainfall days in June:
1.3 days
- Average rainfall days in July:
1.3 days - Average rainfall days in August:
0.8 days - Average rainfall days in September:
1.3 days - Average rainfall days in October:
3.3 days - Average rainfall days in November:
5.7 days - Average rainfall days in December:
9.3 days
The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is August (0.8 days).
Average snowfall days
Brentwood, CA
- Average snowfall days in January:
0 days - Average snowfall days in February:
0 days - Average snowfall days in March:
0 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0.1 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
Brentwood, CA
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 1min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 3min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January:
6h and 0min - Average sunshine in February:
6h and 1min - Average sunshine in March:
7h and 5min - Average sunshine in April:
10h and 2min - Average sunshine in May:
11h and 1min - Average sunshine in June:
11h and 5min
- Average sunshine in July:
12h and 1min - Average sunshine in August:
11h and 5min - Average sunshine in September:
11h and 1min - Average sunshine in October:
7h and 1min - Average sunshine in November:
6h and 4min - Average sunshine in December:
5h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days
Brentwood, CA
- Average sunshine days in January:
21.8 days - Average sunshine days in February:
19.8 days - Average sunshine days in March:
17.7 days - Average sunshine days in April:
22.8 days - Average sunshine days in May:
26.6 days - Average sunshine days in June:
28.5 days
- Average sunshine days in July:
29.7 days - Average sunshine days in August:
29.8 days - Average sunshine days in September:
28.5 days - Average sunshine days in October:
26.9 days - Average sunshine days in November:
23.7 days - Average sunshine days in December:
21.1 days
The month with the most sunshine days is August (29.8 days).
The month with the least sunshine days is March (17.7 days).
Average UV index
Brentwood, CA
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover
Brentwood, CA
The months with the most cloud cover are March and December (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility
Brentwood, CA
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).