Westmont, CA Weather - Forecast & Monthly Averages

TEMPERATURE	65
HUMIDITY	54
PRESSURE	101730
WIND COND.	240 18.4

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Weather Quick Facts

The highest monthly average temperature in Westmont for September is 71.1 degrees
The lowest monthly average temperature in Westmont for December is 57.3 degrees
The most monthly precipitation in Westmont occurs in December with 2.4 inches
The air quality index in Westmont is 71% worse than the national average
The pollution index in Westmont is 56% worse than the national average

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Westmont 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	49°F	70°F	58°F	2.2"
February	51°F	69°F	58°F	1.7"
March	53°F	70°F	60°F	1.1"
April	56°F	72°F	62°F	0.6"
May	59°F	72°F	64°F	0.2"
June	62°F	74°F	67°F	0.0"
July	65°F	78°F	70°F	0.0"
August	66°F	79°F	71°F	0.0"
September	65°F	80°F	71°F	0.2"
October	61°F	79°F	68°F	0.4"
November	55°F	75°F	63°F	0.5"
December	49°F	68°F	57°F	2.4"

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Westmont 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	Westmont	California	National
Air quality index	72	55	42
Pollution index	4,251,410	10,473,190	2,726,193

Westmont air quality information

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

Westmont air quality information

Pollutant	Total
Arsenic	0.010%
Benzene	0.100%
Carbon Tetrachloride	0.000%
Lead	0.010%
Mercury	0.000%

Average monthly Westmont temperature with heat index

Westmont monthly precipitation with daily maximum

Westmont monthly snow depth with daily maximum

Westmont monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Glendale, CA	199,357	72	44.0%
Willowbrook, CA	24,401	72	44.0%
Commerce, CA	12,738	72	44.0%
Los Alamitos, CA	11,521	72	44.0%
Pico Rivera, CA	62,507	72	44.0%
Westmont, CA	35,188	72	44.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Menlo Park, CA	35,211	43	14.0%
Gadsden, AL	35,224	43	14.0%
Buenaventura Lakes, FL	35,117	39	22.0%
Bell, CA	35,301	72	44.0%
Manhattan Beach, CA	35,064	72	44.0%
Westmont, CA	35,188	72	44.0%

Source: The Westmont, 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.