Mill Valley, CA Weather - Forecast & Monthly Averages

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TEMPERATURE	55
HUMIDITY	52
PRESSURE	30.12
WIND COND.	143 1.6

Key findings

The highest monthly average temperature in Mill Valley for September is 64 degrees
The lowest monthly average temperature in Mill Valley for January is 50 degrees
The most monthly precipitation in Mill Valley occurs in December with 4.1 inches
The air quality index in Mill Valley is 20% better than the national average
The pollution index in Mill Valley is 62% worse than the national average

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Mill Valley 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	41°F	59°F	50°F	2.8"
February	45°F	62°F	53°F	3.1"
March	47°F	65°F	55°F	2.9"
April	49°F	67°F	57°F	1.8"
May	52°F	69°F	59°F	0.4"
June	54°F	72°F	62°F	0.3"
July	56°F	73°F	63°F	0.0"
August	57°F	73°F	63°F	0.0"
September	55°F	76°F	64°F	0.1"
October	52°F	73°F	61°F	1.0"
November	47°F	65°F	56°F	1.9"
December	42°F	59°F	50°F	4.1"

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Mill Valley 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	Mill Valley	California	National
Air quality index	40	55	50
Pollution index	8,232,360	18,106,726	5,066,862

Mill Valley air quality information

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

Mill Valley air quality information

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

Average monthly Mill Valley temperature with heat index

Mill Valley monthly precipitation with daily maximum

Mill Valley monthly snow depth with daily maximum

Mill Valley monthly wind speed information

Nearby cities with good air quality

City, State	Population	Air Quality Index	National Avg.
Point Reyes Station, CA	574	34	32%
Berkeley, CA	118,585	40	20%
Kensington, CA	5,602	40	20%
Richmond, CA	108,303	40	20%
Fairfax, CA	7,598	40	20%
Mill Valley, CA	14,318	40	20%

Cities with similar population

City, State	Population	Air Quality Index	National Avg.
Hobe Sound, FL	14,318	36	28%
Beech Grove, IN	14,319	54	8%
Fairview, NJ	14,314	51	2%
Niceville, FL	14,325	31	38%
Chubbuck, ID	14,326	27	46%
Mill Valley, CA	14,318	40	20%

Source: The Mill Valley, 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.