TODAY SEP21
TEMPERATURE58
HUMIDITY90
PRESSURE29.9
WIND COND.
  • 7558Tue
  • 7762Wed
  • 7758Thu
  • 8060Fri
  • 9063Sat
daynightWeather update from Oakland, Metro Oakland International Airport at

Key findings

  • The highest monthly average temperature in Webster for September is 64 degrees
  • The lowest monthly average temperature in Webster for January is 50 degrees
  • The most monthly precipitation in Webster occurs in December with 4.1 inches
  • The air quality index in Webster is 20% better than the national average
  • The pollution index in Webster is 279% worse than the national average

Compare Oakland, CA Weather

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      Webster 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°F59°F50°F2.8"
      February45°F62°F53°F3.1"
      March47°F65°F55°F2.9"
      April49°F67°F57°F1.8"
      May52°F69°F59°F0.4"
      June54°F72°F62°F0.3"
      July56°F73°F63°F0.0"
      August57°F73°F63°F0.0"
      September55°F76°F64°F0.1"
      October52°F73°F61°F1.0"
      November47°F65°F56°F1.9"
      December42°F59°F50°F4.1"

      Webster 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.
      IndexWebsterOaklandCalifornia
      Air quality index404055
      Pollution index19,202,40019,202,40018,106,726

      Webster air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality290
      Days with moderate air quality74
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      Webster air quality information

      PollutantTotal
      Arsenic0.180%
      Benzene0.140%
      Carbon Tetrachloride0.010%
      Lead0.280%
      Mercury0.060%

      Average monthly Webster temperature with heat index

      Webster monthly precipitation with daily maximum

      Webster monthly snow depth with daily maximum

      Webster monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Alameda, CA77,4094020%
      Ashland, CA24,2884020%
      Diablo, CA8074020%
      El Cerrito CDP, CA5,6994020%
      Lafayette, CA25,3814020%
      Oakland, CA412,0404020%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Minneapolis, MN404,670468%
      Tulsa, OK399,9064510%
      Miami, FL432,6224118%
      Cleveland, OH389,16550= 100
      Wichita, KS388,0334020%
      Oakland, CA412,0404020%
      Source: The Webster, Oakland, 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.