TODAY SEP21
TEMPERATURE82
HUMIDITY58
PRESSURE29.77
WIND COND.210 18.3
  • 7147Fri40%
  • 6346Sat
  • 6853Sun
  • 7361Mon
  • 7149Tue
daynightWeather update from Chicago/Waukegan Regional Airport at
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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.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January16°F32°F24°F1.7"
February17°F34°F25°F1.7"
March27°F46°F36°F2.5"
April37°F58°F46°F4.3"
May46°F69°F57°F3.5"
June57°F79°F67°F5.0"
July63°F84°F73°F3.7"
August63°F82°F72°F3.2"
September55°F75°F65°F2.9"
October44°F63°F53°F3.2"
November32°F51°F41°F2.4"
December21°F37°F28°F2.6"

Did you know?

  • The highest monthly average temperature in Mill Valley for July is 73 degrees.
  • The lowest monthly average temperature in Mill Valley for January is 24 degrees.
  • The most monthly precipitation in Mill Valley occurs in June with 5 inches.
  • The air quality index in Mill Valley is 9% better than the national average.
  • The pollution index in Mill Valley is 238% worse than the national average.

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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.
IndexMill ValleyMilwaukeeWisconsin
Air quality index454569
Pollution index17,168,00017,168,0003,316,877

Mill Valley air quality information

MeasurementTotal
Days measured365
Days with good air quality211
Days with moderate air quality154
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Mill Valley air quality information

PollutantTotal
Arsenic0.030%
Benzene0.160%
Carbon Tetrachloride0.050%
Lead0.160%
Mercury0.150%

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, StatePopulationAir Quality IndexNational Avg.
Butler, WI1,8164510%
Fox Point, WI6,6954510%
Greendale, WI14,3034510%
Jackson, WI6,8394510%
Merton, WI3,5354510%
Milwaukee, WI598,6724510%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Louisville, KY611,5735510%
Las Vegas, NV613,295548%
Oklahoma City, OK620,015476%
Portland, OR620,5893824%
Baltimore, MD621,000468%
Milwaukee, WI598,6724510%
Source: The Mill Valley, Milwaukee, WI 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.