Brea, CA Weather - Forecast & Monthly Averages

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Weather Quick Facts

The highest monthly average temperature in Brea for August is 75 degrees
The lowest monthly average temperature in Brea for December is 56.3 degrees
The most monthly precipitation in Brea occurs in December with 2.5 inches
The air quality index in Brea is 111% worse than the national average
The pollution index in Brea is 69% better than the national average

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Brea 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	46°F	72°F	57°F	2.3"
February	48°F	72°F	58°F	1.7"
March	51°F	75°F	61°F	1.0"
April	54°F	76°F	64°F	0.5"
May	58°F	78°F	66°F	0.3"
June	62°F	81°F	70°F	0.0"
July	66°F	86°F	74°F	0.1"
August	66°F	88°F	75°F	0.0"
September	65°F	88°F	74°F	0.2"
October	59°F	83°F	69°F	0.4"
November	52°F	77°F	63°F	0.6"
December	45°F	70°F	56°F	2.5"

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Brea 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	Brea	California	National
Air quality index	89	55	42
Pollution index	858,652	10,473,190	2,726,193

Brea air quality information

Measurement	Total
Days measured	365
Days with good air quality	42
Days with moderate air quality	178
Days w/ poor A.Q. for sensitive groups	79
Days with unhealthy air quality	58

Brea air quality information

Pollutant	Total
Arsenic	0.002%
Benzene	0.010%
Carbon Tetrachloride	0.000%
Lead	0.020%
Mercury	0.001%

Average monthly Brea temperature with heat index

Brea monthly precipitation with daily maximum

Brea monthly snow depth with daily maximum

Brea monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Industry, CA	264	72	44.0%
South San Jose Hills, CA	19,104	72	44.0%
West Covina, CA	105,808	72	44.0%
Bellflower, CA	76,339	72	44.0%
Cypress, CA	49,137	72	44.0%
Brea, CA	44,182	89	78.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Cleveland Heights, OH	44,176	50	= 100
North Lauderdale, FL	44,189	41	18.0%
Sayreville, NJ	44,243	51	2.0%
Hackensack, NJ	44,266	51	2.0%
Ashburn, VA	44,090	47	6.0%
Brea, CA	44,182	89	78.0%

Source: The Brea, 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.