Brentwood, CA Weather - Forecast & Monthly Averages

TEMPERATURE	55
HUMIDITY	34
PRESSURE
WIND COND.	321 11.3

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Weather Quick Facts

The highest monthly average temperature in Brentwood for July is 70.9 degrees
The lowest monthly average temperature in Brentwood for January is 47.4 degrees
The most monthly precipitation in Brentwood occurs in December with 2.8 inches
The air quality index in Brentwood is 7% worse than the national average
The pollution index in Brentwood is 402% worse than the national average

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Brentwood Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
Month	Temp. _(min)	Temp. _(max)	Temp. _(avg)	Precipitation
January	38°F	59°F	47°F	2.6"
February	41°F	63°F	51°F	2.6"
March	43°F	67°F	54°F	2.1"
April	45°F	72°F	57°F	1.4"
May	50°F	78°F	62°F	0.3"
June	54°F	85°F	67°F	0.2"
July	58°F	90°F	71°F	0.0"
August	57°F	89°F	70°F	0.0"
September	56°F	88°F	69°F	0.1"
October	50°F	79°F	63°F	0.9"
November	43°F	67°F	54°F	1.5"
December	38°F	60°F	48°F	2.8"

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Brentwood air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
Index	Brentwood	California	National
Air quality index	45	55	42
Pollution index	13,698,500	10,473,190	2,726,193

Brentwood air quality

Measurement	Total
Days measured	365
Days with good air quality	229
Days with moderate air quality	123
Days w/ poor A.Q. for sensitive groups	12
Days with unhealthy air quality	1

Air quality details

Pollutant	Total
Arsenic	0.040%
Benzene	0.110%
Carbon Tetrachloride	0.330%
Lead	0.070%
Mercury	0.120%

Average monthly Brentwood temperature with heat index

Brentwood monthly precipitation with daily maximum

Brentwood monthly snow depth with daily maximum

Brentwood monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Diablo, CA	834	40	20.0%
Bay Point, CA	25,378	40	20.0%
Blackhawk, CA	10,590	40	20.0%
Norris Canyon, CA	790	40	20.0%
Clayton, CA	11,585	40	20.0%
Brentwood, CA	63,013	45	10.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
West Hartford, CT	63,023	41	18.0%
Encinitas, CA	62,967	64	28.0%
La Habra, CA	62,787	72	44.0%
Brentwood, NY	62,743	43	14.0%
Springfield, OR	62,729	38	24.0%
Brentwood, CA	63,013	45	10.0%

Source: The Brentwood, CA weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.