San Bruno, CA Weather - Forecast & Monthly Averages

TEMPERATURE	61
HUMIDITY	58
PRESSURE	101560
WIND COND.	210 27.7

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Weather Quick Facts

The highest monthly average temperature in San Bruno for September is 63.3 degrees
The lowest monthly average temperature in San Bruno for January is 50.7 degrees
The most monthly precipitation in San Bruno occurs in December with 4.4 inches
The air quality index in San Bruno is 2% worse than the national average
The pollution index in San Bruno is 254% worse than the national average

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San Bruno 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	44°F	58°F	51°F	3.2"
February	46°F	62°F	53°F	3.4"
March	47°F	64°F	54°F	2.7"
April	49°F	67°F	56°F	1.7"
May	51°F	69°F	58°F	0.3"
June	54°F	72°F	61°F	0.2"
July	56°F	73°F	62°F	0.0"
August	56°F	73°F	62°F	0.0"
September	56°F	76°F	63°F	0.1"
October	54°F	73°F	62°F	1.0"
November	49°F	65°F	56°F	1.7"
December	44°F	58°F	51°F	4.4"

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San Bruno 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 Bruno	California	National
Air quality index	43	55	42
Pollution index	9,645,610	10,473,190	2,726,193

San Bruno air quality information

Measurement	Total
Days measured	365
Days with good air quality	252
Days with moderate air quality	101
Days w/ poor A.Q. for sensitive groups	10
Days with unhealthy air quality	2

San Bruno air quality information

Pollutant	Total
Arsenic	0.140%
Benzene	0.070%
Carbon Tetrachloride	0.000%
Lead	0.100%
Mercury	0.020%

Average monthly San Bruno temperature with heat index

San Bruno monthly precipitation with daily maximum

San Bruno monthly snow depth with daily maximum

San Bruno monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Alameda, CA	79,827	40	20.0%
South San Francisco, CA	66,878	40	20.0%
Colma, CA	1,492	40	20.0%
Emeryville, CA	11,679	40	20.0%
Oakland, CA	422,575	40	20.0%
San Bruno, CA	44,663	43	14.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Strongsville, OH	44,675	50	= 100
Saint-Eustache, QC	44,539	n/a
Morgan Hill, CA	44,789	43	14.0%
Binghamton, NY	44,819	36	28.0%
Barnstable Town, MA	44,497	36	28.0%
San Bruno, CA	44,663	43	14.0%

Source: The San Bruno, 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.