TODAY OCT03
TEMPERATURE88
HUMIDITY29
PRESSURE100920
WIND COND.280 5.4
  • 9068Fri
  • 9669Sat
  • 9367Sun
  • 8658Mon
  • 7858Tue
daynightWeather update from Hayward, Hayward Air Terminal at
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Weather Quick Facts

  • The highest monthly average temperature in Longwood-Winton Grove for August is 64.4 degrees
  • The lowest monthly average temperature in Longwood-Winton Grove for December is 49.2 degrees
  • The most monthly precipitation in Longwood-Winton Grove occurs in January with 3.5 inches
  • The air quality index in Longwood-Winton Grove is 2% worse than the national average
  • The pollution index in Longwood-Winton Grove is 136% worse than the national average

Compare Hayward, CA Weather

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      Longwood-Winton Grove 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
      January42°F58°F50°F3.5"
      February46°F61°F53°F3.3"
      March46°F64°F54°F2.6"
      April48°F66°F56°F1.8"
      May52°F69°F59°F0.6"
      June56°F73°F62°F0.1"
      July57°F75°F64°F0.0"
      August58°F76°F64°F0.0"
      September57°F76°F64°F0.2"
      October53°F72°F61°F1.4"
      November48°F66°F56°F1.3"
      December42°F58°F49°F3.2"

      Longwood-Winton Grove 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.
      IndexLongwood-Winton GroveHaywardCalifornia
      Air quality index434355
      Pollution index6,427,2906,427,29010,473,190

      Longwood-Winton Grove 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
      Arsenic0.010%
      Benzene0.110%
      Carbon Tetrachloride0.010%
      Lead0.010%
      Mercury0.003%

      Average monthly Longwood-Winton Grove temperature with heat index

      Longwood-Winton Grove monthly precipitation with daily maximum

      Longwood-Winton Grove monthly snow depth with daily maximum

      Longwood-Winton Grove monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Castle Hill, CA1,1644020.0%
      Castro Valley, CA64,3924020.0%
      San Lorenzo, CA30,1174020.0%
      Alameda, CA79,8274020.0%
      Ashland, CA23,5664020.0%
      Hayward, CA158,8174314.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Alexandria, VA158,309476.0%
      Barrie, ON159,618n/a 
      Lancaster, CA157,6977244.0%
      Coquitlam, BC159,980n/a 
      Abbotsford, BC160,174n/a 
      Hayward, CA158,8174314.0%
      Source: The Longwood-Winton Grove, Hayward, 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.