South Arroyo, Pasadena, CA Weather - Forecast & Monthly Averages

TEMPERATURE	53
HUMIDITY	42
PRESSURE
WIND COND.	332 1.9

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Weather Quick Facts

The highest monthly average temperature in South Arroyo for August is 75.3 degrees
The lowest monthly average temperature in South Arroyo for December is 54.9 degrees
The most monthly precipitation in South Arroyo occurs in January with 3.3 inches
The air quality index in South Arroyo is 71% worse than the national average
The pollution index in South Arroyo is 5017% worse than the national average

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South Arroyo 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	3.3"
February	46°F	70°F	57°F	2.5"
March	49°F	73°F	60°F	2.0"
April	52°F	75°F	62°F	0.6"
May	56°F	78°F	65°F	0.2"
June	60°F	83°F	70°F	0.0"
July	65°F	89°F	75°F	0.0"
August	65°F	90°F	75°F	0.0"
September	63°F	89°F	74°F	0.2"
October	57°F	82°F	68°F	0.5"
November	50°F	76°F	62°F	0.6"
December	44°F	68°F	55°F	2.1"

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South Arroyo 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	South Arroyo	Pasadena	California
Air quality index	72	72	55
Pollution index	139,490,000	139,490,000	10,473,190

South Arroyo 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 South Arroyo temperature with heat index

South Arroyo monthly precipitation with daily maximum

South Arroyo monthly snow depth with daily maximum

South Arroyo monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Arcadia, CA	57,053	72	44.0%
Culver City, CA	38,913	72	44.0%
Azusa, CA	49,584	72	44.0%
Industry, CA	264	72	44.0%
Vincent, CA	16,405	72	44.0%
Pasadena, CA	142,017	72	44.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Milton, ON	142,128	n/a
Murfreesboro, TN	141,704	45	10.0%
Mesquite, TX	142,429	51	2.0%
Syracuse, NY	142,553	37	26.0%
McAllen, TX	142,557	42	16.0%
Pasadena, CA	142,017	72	44.0%

Source: The South Arroyo, Pasadena, 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.