Westminster, CA Weather - Forecast & Monthly Averages

TEMPERATURE	66
HUMIDITY	50
PRESSURE	102190
WIND COND.	243

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Weather Quick Facts

The highest monthly average temperature in Westminster for August is 72.2 degrees
The lowest monthly average temperature in Westminster for December is 55.2 degrees
The most monthly precipitation in Westminster occurs in December with 7.6 inches
The air quality index in Westminster is 71% worse than the national average
The pollution index in Westminster is 69% better than the national average

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Westminster 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	45°F	69°F	56°F	7.4"
February	47°F	68°F	57°F	5.5"
March	50°F	71°F	60°F	2.6"
April	52°F	73°F	62°F	1.3"
May	57°F	74°F	64°F	2.3"
June	60°F	77°F	67°F	0.1"
July	64°F	81°F	71°F	0.5"
August	64°F	83°F	72°F	0.2"
September	62°F	84°F	71°F	5.2"
October	57°F	80°F	67°F	1.7"
November	50°F	74°F	61°F	2.9"
December	44°F	67°F	55°F	7.6"

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Westminster 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	Westminster	California	National
Air quality index	72	55	42
Pollution index	858,652	10,473,190	2,726,193

Westminster 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	0.002%
Benzene	0.010%
Carbon Tetrachloride	0.000%
Lead	0.020%
Mercury	0.001%

Average monthly Westminster temperature with heat index

Westminster monthly precipitation with daily maximum

Westminster monthly snow depth with daily maximum

Westminster monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Florence-Graham, CA	64,787	72	44.0%
Cerritos, CA	49,388	72	44.0%
Hawaiian Gardens, CA	14,212	72	44.0%
La Mirada, CA	48,260	72	44.0%
Rossmoor, CA	11,923	72	44.0%
Westminster, CA	90,857	72	44.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Bellingham, WA	90,821	34	32.0%
Santa Barbara, CA	90,911	44	12.0%
Kirkland, WA	91,146	45	10.0%
San Leandro, CA	90,489	40	20.0%
Carson, CA	91,354	72	44.0%
Westminster, CA	90,857	72	44.0%

Source: The Westminster, 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.