TODAY OCT09
TEMPERATURE61
HUMIDITY93
PRESSURE101390
WIND COND.
  • 8057Wed
  • 7953Thu
  • 7854Fri
  • 7757Sat
  • 7655Sun
daynightWeather update from San Jose, San Jose International Airport at
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Weather Quick Facts

  • The highest monthly average temperature in North Valley for July is 68.1 degrees
  • The lowest monthly average temperature in North Valley for January is 50.1 degrees
  • The most monthly precipitation in North Valley occurs in February with 2.5 inches
  • The air quality index in North Valley is 2% worse than the national average
  • The pollution index in North Valley is 762% worse than the national average

Compare San Jose, CA Weather

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      North 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
      January41°F61°F50°F2.5"
      February44°F64°F53°F2.5"
      March46°F68°F56°F2.1"
      April48°F71°F58°F1.3"
      May52°F75°F62°F0.3"
      June56°F80°F66°F0.2"
      July58°F82°F68°F0.0"
      August58°F82°F68°F0.0"
      September57°F82°F67°F0.1"
      October53°F77°F63°F0.6"
      November46°F68°F56°F1.3"
      December41°F61°F50°F2.4"

      North 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.
      IndexNorth ValleySan JoseCalifornia
      Air quality index434355
      Pollution index23,499,80023,499,80010,473,190

      North Valley air quality

      MeasurementTotal
      Days measured365
      Days with good air quality263
      Days with moderate air quality98
      Days w/ poor A.Q. for sensitive groups4
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.120%
      Benzene0.170%
      Carbon Tetrachloride0.001%
      Lead0.220%
      Mercury0.140%

      Average monthly North Valley temperature with heat index

      North Valley monthly precipitation with daily maximum

      North Valley monthly snow depth with daily maximum

      North Valley monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Newark, CA48,1484314.0%
      Sunol, CA8354314.0%
      Fruitdale, CA1,1844314.0%
      East Foothills, CA6,8154314.0%
      Loyola, CA3,4044314.0%
      San Jose, CA1,029,4094314.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Edmonton, AB1,053,392n/a 
      Ottawa, ON1,058,126n/a 
      Austin, TX965,8724412.0%
      Jacksonville, FL902,4884314.0%
      Fort Worth, TX892,221512.0%
      San Jose, CA1,029,4094314.0%
      Source: The North Valley, San Jose, 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.