San Anselmo, CA Weather - Forecast & Monthly Averages

TEMPERATURE
HUMIDITY
PRESSURE
WIND COND.	346 17.7

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Weather Quick Facts

The highest monthly average temperature in San Anselmo for July is 64.6 degrees
The lowest monthly average temperature in San Anselmo for December is 46.6 degrees
The most monthly precipitation in San Anselmo occurs in January with 3.8 inches
The air quality index in San Anselmo is 5% better than the national average
The pollution index in San Anselmo is 202% worse than the national average

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San Anselmo 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	36°F	58°F	47°F	3.8"
February	39°F	62°F	50°F	3.4"
March	41°F	66°F	52°F	3.0"
April	42°F	69°F	55°F	1.6"
May	46°F	74°F	59°F	0.5"
June	50°F	80°F	64°F	0.3"
July	53°F	81°F	65°F	0.0"
August	53°F	80°F	64°F	0.0"
September	49°F	82°F	64°F	0.1"
October	45°F	76°F	59°F	1.3"
November	40°F	66°F	52°F	1.8"
December	36°F	58°F	47°F	3.8"

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San Anselmo 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 Anselmo	California	National
Air quality index	40	55	42
Pollution index	8,232,360	10,473,190	2,726,193

San Anselmo 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 San Anselmo temperature with heat index

San Anselmo monthly precipitation with daily maximum

San Anselmo monthly snow depth with daily maximum

San Anselmo monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Point Reyes Station, CA	210	34	32.0%
Black Point-Green Point, CA	1,738	40	20.0%
Alto, CA	818	40	20.0%
Kentfield, CA	7,423	40	20.0%
Muir Beach, CA	360	40	20.0%
San Anselmo, CA	12,623	40	20.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Fernandina Beach, FL	12,622	43	14.0%
Kewanee, IL	12,622	41	18.0%
Big Bear City, CA	12,621	89	78.0%
Woodland Park, NJ	12,608	51	2.0%
Erin, ON	12,607	n/a
San Anselmo, CA	12,623	40	20.0%

Source: The San Anselmo, 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.