TODAY DEC23
TEMPERATURE63
HUMIDITY66
PRESSURE
WIND COND.
  • 7153Mon
  • 6147Tue70%40%
  • 6446
  • 6646Thu
  • 6649Fri
daynightWeather update from LOS ANGELES DOWNTOWN at
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Weather Quick Facts

  • The highest monthly average temperature in Rossmoyne for August is 75.3 degrees
  • The lowest monthly average temperature in Rossmoyne for December is 54.9 degrees
  • The most monthly precipitation in Rossmoyne occurs in January with 3.3 inches
  • The air quality index in Rossmoyne is 71% worse than the national average
  • The pollution index in Rossmoyne is 5017% worse than the national average

Compare Glendale, CA Weather

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      Rossmoyne 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°F3.3"
      February46°F70°F57°F2.5"
      March49°F73°F60°F2.0"
      April52°F75°F62°F0.6"
      May56°F78°F65°F0.2"
      June60°F83°F70°F0.0"
      July65°F89°F75°F0.0"
      August65°F90°F75°F0.0"
      September63°F89°F74°F0.2"
      October57°F82°F68°F0.5"
      November50°F76°F62°F0.6"
      December44°F68°F55°F2.1"

      Rossmoyne 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.
      IndexRossmoyneGlendaleCalifornia
      Air quality index727255
      Pollution index139,490,000139,490,00010,473,190

      Rossmoyne air quality

      MeasurementTotal
      Days measured365
      Days with good air quality66
      Days with moderate air quality208
      Days w/ poor A.Q. for sensitive groups62
      Days with unhealthy air quality28

      Air quality details

      PollutantTotal
      Arsenic0.200%
      Benzene0.950%
      Carbon Tetrachloride0.080%
      Lead1.320%
      Mercury0.440%

      Average monthly Rossmoyne temperature with heat index

      Rossmoyne monthly precipitation with daily maximum

      Rossmoyne monthly snow depth with daily maximum

      Rossmoyne monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      La Crescenta-Montrose, CA20,1717244.0%
      Montebello, CA62,6977244.0%
      Whittier, CA84,8217244.0%
      San Marino, CA13,0207244.0%
      East Pasadena, CA6,0257244.0%
      Glendale, CA199,3577244.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Aurora, IL199,3265510.0%
      Grand Rapids, MI199,4173824.0%
      Amarillo, TX199,2254412.0%
      Montgomery, AL199,054524.0%
      Huntington Beach, CA199,7787244.0%
      Glendale, CA199,3577244.0%
      Source: The Rossmoyne, Glendale, 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.