TODAY MAR05
TEMPERATURE45
HUMIDITY76
PRESSURE30.24
WIND COND.50 7.6
  • 6445Fri90%
  • 6042Sat
  • 6142Sun
  • 5944Mon
  • 5643Tue
daynightWeather update from Hayward, Hayward Air Terminal at

Key findings

  • The highest monthly average temperature in Hayward for August is 64 degrees
  • The lowest monthly average temperature in Hayward for December is 49 degrees
  • The most monthly precipitation in Hayward occurs in January with 3.5 inches
  • The air quality index in Hayward is 14% better than the national average
  • The pollution index in Hayward is 27% worse than the national average

Compare Hayward, CA Weather

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      Hayward 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"

      Hayward 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.
      IndexHaywardCaliforniaNational
      Air quality index435550
      Pollution index6,427,29018,106,7265,066,862

      Hayward 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

      Hayward air quality information

      PollutantTotal
      Arsenic0.010%
      Benzene0.110%
      Carbon Tetrachloride0.010%
      Lead0.010%
      Mercury0.003%

      Average monthly Hayward temperature with heat index

      Hayward monthly precipitation with daily maximum

      Hayward monthly snow depth with daily maximum

      Hayward monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Ashland, CA24,2884020%
      Norris Canyon, CA1,0464020%
      San Ramon, CA74,3664020%
      Alamo, CA16,0784020%
      Blackhawk, CA9,4684020%
      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 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.