TODAY OCT24
TEMPERATURE70
HUMIDITY53
PRESSURE29.91
WIND COND.310 22.3
  • 7152Sun
  • 7651Mon
  • 7649Tue
  • 7550Wed
  • 7452Thu
daynightWeather update from Hayward, Hayward Air Terminal at

Key findings

  • The highest monthly average temperature in Longwood-Winton Grove for August is 64 degrees
  • The lowest monthly average temperature in Longwood-Winton Grove for December is 49 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 14% better than the national average
  • The pollution index in Longwood-Winton Grove is 27% 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 index6,427,2906,427,29018,106,726

      Longwood-Winton Grove 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

      Longwood-Winton Grove air quality information

      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

      City, StatePopulationAir Quality IndexNational Avg.
      Ashland, CA24,2884020%
      Blackhawk, CA9,4684020%
      Castle Hill, CA1,2024020%
      Diablo, CA8074020%
      Emeryville, CA11,1114020%
      Hayward, CA154,5074314%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Springfield, MA153,9914020%
      Macon-Bibb County, GA153,9253824%
      Pasadena, TX153,286524%
      Cary, NC155,822468%
      Salinas, CA155,8893726%
      Hayward, CA154,5074314%
      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.