Excelsior, San Francisco, CA Weather - Forecast & Monthly Averages

TEMPERATURE	56
HUMIDITY
PRESSURE
WIND COND.

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Weather Quick Facts

The highest monthly average temperature in Excelsior for September is 63.3 degrees
The lowest monthly average temperature in Excelsior for January is 50.7 degrees
The most monthly precipitation in Excelsior occurs in December with 4.4 inches
The air quality index in Excelsior is 5% better than the national average
The pollution index in Excelsior is 202% worse than the national average

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Excelsior 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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Excelsior 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	Excelsior	San Francisco	California
Air quality index	40	40	55
Pollution index	8,232,360	8,232,360	10,473,190

Excelsior air quality

Measurement	Total
Days measured	365
Days with good air quality	290
Days with moderate air quality	74
Days w/ poor A.Q. for sensitive groups	1
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.010%
Benzene	0.060%
Carbon Tetrachloride	0.000%
Lead	0.010%
Mercury	0.010%

Average monthly Excelsior temperature with heat index

Excelsior monthly precipitation with daily maximum

Excelsior monthly snow depth with daily maximum

Excelsior monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Colma, CA	1,492	40	20.0%
Piedmont, CA	11,454	40	20.0%
Alto, CA	818	40	20.0%
Larkspur, CA	12,363	40	20.0%
Sausalito, CA	7,177	40	20.0%
San Francisco, CA	874,784	40	20.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Charlotte, NC	873,570	49	2.0%
Indianapolis, IN	869,387	54	8.0%
Columbus, OH	889,079	46	8.0%
Fort Worth, TX	892,221	51	2.0%
Jacksonville, FL	902,488	43	14.0%
San Francisco, CA	874,784	40	20.0%

Source: The Excelsior, San Francisco, 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.