TODAY MAY28
TEMPERATURE79
HUMIDITY57
PRESSURE
WIND COND.49 3
  • 8459Thu
  • 8258Fri
  • 8057Sat
  • 8159Sun
  • 8060Mon
daynightWeather update from EW4858 El Cajon at
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Bostonia 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
January45°F69°F56°F1.9"
February47°F69°F57°F2.2"
March50°F70°F59°F1.0"
April53°F72°F61°F0.7"
May57°F72°F63°F0.4"
June61°F76°F66°F0.0"
July65°F80°F71°F0.2"
August66°F82°F72°F0.0"
September64°F83°F72°F0.2"
October58°F80°F68°F0.5"
November51°F74°F62°F0.9"
December46°F68°F56°F2.5"

Did you know?

  • The highest monthly average temperature in Bostonia for August is 72 degrees.
  • The lowest monthly average temperature in Bostonia for December is 56 degrees.
  • The most monthly precipitation in Bostonia occurs in December with 2.5 inches.
  • The air quality index in Bostonia is 23% worse than the national average.
  • The pollution index in Bostonia is 97% better than the national average.

Compare Bostonia, CA Weather To Other Cities

      vs

      Bostonia 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.
      IndexBostoniaCaliforniaNational
      Air quality index615550
      Pollution index162,74018,106,7265,066,862

      Bostonia air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality69
      Days with moderate air quality277
      Days w/ poor A.Q. for sensitive groups17
      Days with unhealthy air quality1

      Bostonia air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.003%
      Carbon Tetrachloride0.000%
      Lead0.000%
      Mercury0.000%

      Average monthly Bostonia temperature with heat index

      Bostonia monthly precipitation with daily maximum

      Bostonia monthly snow depth with daily maximum

      Bostonia monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Casa de Oro-Mount Helix, CA20,1376122%
      El Cajon, CA102,8946122%
      Harbison Canyon, CA4,1286122%
      La Presa, CA37,1106122%
      Rancho San Diego, CA22,0186122%
      Bostonia, CA16,2956122%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Menomonie, WI16,295355610%
      Woodcrest, CA16,2968570%
      Norcross, GA16,293524%
      Oconomowoc, WI16,2893726%
      South River, NJ16,3054020%
      Bostonia, CA16,2956122%
      Source: The Bostonia, 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.