Downey, CA Weather - Forecast & Monthly Averages

TEMPERATURE	69
HUMIDITY	23
PRESSURE
WIND COND.	30 4.8

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Weather Quick Facts

The highest monthly average temperature in Downey for August is 72.1 degrees
The lowest monthly average temperature in Downey for December is 56.2 degrees
The most monthly precipitation in Downey occurs in December with 2.7 inches
The air quality index in Downey is 71% worse than the national average
The pollution index in Downey is 5017% worse than the national average

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Downey 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	70°F	57°F	2.6"
February	48°F	70°F	58°F	2.5"
March	51°F	72°F	60°F	1.0"
April	53°F	74°F	62°F	0.6"
May	57°F	75°F	65°F	0.3"
June	61°F	78°F	67°F	0.0"
July	65°F	83°F	71°F	0.2"
August	65°F	85°F	72°F	0.0"
September	63°F	85°F	72°F	0.3"
October	59°F	81°F	68°F	0.5"
November	52°F	76°F	62°F	0.7"
December	46°F	69°F	56°F	2.7"

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Downey 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	Downey	California	National
Air quality index	72	55	42
Pollution index	139,490,000	10,473,190	2,726,193

Downey air quality

Measurement	Total
Days measured	365
Days with good air quality	66
Days with moderate air quality	208
Days w/ poor A.Q. for sensitive groups	62
Days with unhealthy air quality	28

Air quality details

Pollutant	Total
Arsenic	0.200%
Benzene	0.950%
Carbon Tetrachloride	0.080%
Lead	1.320%
Mercury	0.440%

Average monthly Downey temperature with heat index

Downey monthly precipitation with daily maximum

Downey monthly snow depth with daily maximum

Downey monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Baldwin Park, CA	75,659	72	44.0%
Hacienda Heights, CA	55,386	72	44.0%
West Covina, CA	105,808	72	44.0%
Glendale, CA	199,357	72	44.0%
West Rancho Dominguez, CA	21,977	72	44.0%
Downey, CA	111,263	72	44.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Lowell, MA	111,311	37	26.0%
Pompano Beach, FL	111,202	41	18.0%
Centennial, CO	111,331	58	16.0%
Antioch, CA	111,468	45	10.0%
Thunder Bay, ON	111,499	n/a
Downey, CA	111,263	72	44.0%

Source: The Downey, 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.