TODAY MAR19
TEMPERATURE67
HUMIDITY56
PRESSURE
WIND COND.323 1.6
  • 6947Tue
  • 6648Wed
  • 6749Thu
  • 6750Fri
  • 6247Sat
daynightWeather update from LOS ALTOS at
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Weather Quick Facts

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

Compare Redwood City, CA Weather

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      Redwood City 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
      January44°F58°F51°F3.2"
      February46°F62°F53°F3.4"
      March47°F64°F54°F2.7"
      April49°F67°F56°F1.7"
      May51°F69°F58°F0.3"
      June54°F72°F61°F0.2"
      July56°F73°F62°F0.0"
      August56°F73°F62°F0.0"
      September56°F76°F63°F0.1"
      October54°F73°F62°F1.0"
      November49°F65°F56°F1.7"
      December44°F58°F51°F4.4"

      Redwood City 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.
      IndexRedwood CityCaliforniaNational
      Air quality index435542
      Pollution index9,645,61010,473,1902,726,193

      Redwood City air quality information

      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

      Redwood City air quality information

      PollutantTotal
      Arsenic0.140%
      Benzene0.070%
      Carbon Tetrachloride0.000%
      Lead0.100%
      Mercury0.020%

      Average monthly Redwood City temperature with heat index

      Redwood City monthly precipitation with daily maximum

      Redwood City monthly snow depth with daily maximum

      Redwood City monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      San Lorenzo, CA30,1174020.0%
      South San Francisco, CA66,8784020.0%
      Ashland, CA23,5664020.0%
      Colma, CA1,4924020.0%
      Brisbane, CA4,6454020.0%
      Redwood City, CA84,5184314.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Alhambra, CA84,5097244.0%
      Johns Creek, GA84,551524.0%
      Santa Fe, NM84,4184412.0%
      New Braunfels, TX84,622492.0%
      Danbury, CT84,6504314.0%
      Redwood City, CA84,5184314.0%
      Source: The Redwood City, 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.