Belmont, CA Weather - Forecast & Monthly Averages

TEMPERATURE	61
HUMIDITY	90
PRESSURE	101630
WIND COND.

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Weather Quick Facts

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

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

Belmont air quality

Measurement	Total
Days measured	365
Days with good air quality	263
Days with moderate air quality	98
Days w/ poor A.Q. for sensitive groups	4
Days with unhealthy air quality	0

Air quality details

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

Average monthly Belmont temperature with heat index

Belmont monthly precipitation with daily maximum

Belmont monthly snow depth with daily maximum

Belmont monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Ashland, CA	23,566	40	20.0%
Castro Valley, CA	64,392	40	20.0%
Colma, CA	1,492	40	20.0%
South San Francisco, CA	66,878	40	20.0%
San Leandro, CA	90,489	40	20.0%
Belmont, CA	26,963	43	14.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Marshalltown, IA	26,957	37	26.0%
Bristol, TN	26,973	45	10.0%
Eureka, CA	26,938	27	46.0%
Maryland Heights, MO	26,996	54	8.0%
West Chicago, IL	26,998	55	10.0%
Belmont, CA	26,963	43	14.0%

Source: The Belmont, 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.