San Marino, CA Weather - Forecast & Monthly Averages

TEMPERATURE	51
HUMIDITY	36
PRESSURE
WIND COND.	321 2.7

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Weather Quick Facts

The highest monthly average temperature in San Marino for August is 72.5 degrees
The lowest monthly average temperature in San Marino for December is 57 degrees
The most monthly precipitation in San Marino occurs in January with 3.5 inches
The air quality index in San Marino is 71% worse than the national average
The pollution index in San Marino is 5017% worse than the national average

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San Marino 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	48°F	70°F	58°F	3.5"
February	50°F	70°F	59°F	2.9"
March	52°F	72°F	61°F	1.5"
April	55°F	74°F	63°F	0.7"
May	58°F	75°F	65°F	0.5"
June	61°F	78°F	68°F	0.0"
July	65°F	83°F	72°F	0.0"
August	65°F	84°F	73°F	0.0"
September	64°F	85°F	72°F	0.3"
October	60°F	81°F	69°F	0.7"
November	54°F	75°F	63°F	0.8"
December	48°F	69°F	57°F	2.8"

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

San Marino 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 San Marino temperature with heat index

San Marino monthly precipitation with daily maximum

San Marino monthly snow depth with daily maximum

San Marino monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
East San Gabriel, CA	23,076	72	44.0%
Rose Hills, CA	2,619	72	44.0%
Sierra Madre, CA	10,829	72	44.0%
Temple City, CA	35,699	72	44.0%
Lynwood, CA	69,625	72	44.0%
San Marino, CA	13,020	72	44.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Lloydminster (Part), SK	13,022	n/a
Coolidge, AZ	13,016	74	48.0%
Red Oak, TX	13,010	51	2.0%
Butler, PA	13,008	31	38.0%
Dunmore, PA	13,008	38	24.0%
San Marino, CA	13,020	72	44.0%

Source: The San Marino, 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.