Millbrae, CA Weather - Forecast & Monthly Averages

TEMPERATURE	65
HUMIDITY	81
PRESSURE	101690
WIND COND.

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Weather Quick Facts

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

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

Millbrae air quality

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

Air quality details

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

Average monthly Millbrae temperature with heat index

Millbrae monthly precipitation with daily maximum

Millbrae monthly snow depth with daily maximum

Millbrae monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
San Francisco, CA	874,784	40	20.0%
Alameda, CA	79,827	40	20.0%
San Leandro, CA	90,489	40	20.0%
Colma, CA	1,492	40	20.0%
Daly City, CA	107,197	40	20.0%
Millbrae, CA	22,998	43	14.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Farmington, MN	22,996	46	8.0%
Laguna Beach, CA	22,991	89	78.0%
Landover, MD	22,991	47	6.0%
Kenmore, WA	22,969	45	10.0%
Kingston, NY	22,954	36	28.0%
Millbrae, CA	22,998	43	14.0%

Source: The Millbrae, 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.