San Lorenzo, CA Weather - Forecast & Monthly Averages

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TEMPERATURE
HUMIDITY
PRESSURE
WIND COND.

Weather Quick Facts

The highest monthly average temperature in San Lorenzo for August is 64.4 degrees
The lowest monthly average temperature in San Lorenzo for December is 49.2 degrees
The most monthly precipitation in San Lorenzo occurs in January with 3.5 inches
The air quality index in San Lorenzo is 5% better than the national average
The pollution index in San Lorenzo is 136% worse than the national average

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San Lorenzo 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	42°F	58°F	50°F	3.5"
February	46°F	61°F	53°F	3.3"
March	46°F	64°F	54°F	2.6"
April	48°F	66°F	56°F	1.8"
May	52°F	69°F	59°F	0.6"
June	56°F	73°F	62°F	0.1"
July	57°F	75°F	64°F	0.0"
August	58°F	76°F	64°F	0.0"
September	57°F	76°F	64°F	0.2"
October	53°F	72°F	61°F	1.4"
November	48°F	66°F	56°F	1.3"
December	42°F	58°F	49°F	3.2"

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San Lorenzo 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 Lorenzo	California	National
Air quality index	40	55	42
Pollution index	6,427,290	10,473,190	2,726,193

San Lorenzo 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	0.110%
Carbon Tetrachloride	0.010%
Lead	0.010%
Mercury	0.003%

Average monthly San Lorenzo temperature with heat index

San Lorenzo monthly precipitation with daily maximum

San Lorenzo monthly snow depth with daily maximum

San Lorenzo monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Lafayette, CA	25,949	40	20.0%
Saranap, CA	6,027	40	20.0%
Castro Valley, CA	64,392	40	20.0%
Moraga, CA	16,896	40	20.0%
San Leandro, CA	90,489	40	20.0%
San Lorenzo, CA	30,117	40	20.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Newington, CT	30,114	41	18.0%
Lawrenceville, GA	30,125	37	26.0%
Burlingame, CA	30,071	43	14.0%
Ballwin, MO	30,177	54	8.0%
Elizabethtown, KY	30,179	39	22.0%
San Lorenzo, CA	30,117	40	20.0%

Source: The San Lorenzo, 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.