TODAY NOV22
TEMPERATURE61
HUMIDITY18
PRESSURE
WIND COND.358 1.6
  • 7447Fri
  • 6452Sat50%60%
  • 6549Sun20%20%
  • 6352Mon
  • 6449Tue
daynightWeather update from WHITTIER HILLS at
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Weather Quick Facts

  • The highest monthly average temperature in Rosemead for August is 72.5 degrees
  • The lowest monthly average temperature in Rosemead for December is 57 degrees
  • The most monthly precipitation in Rosemead occurs in January with 3.5 inches
  • The air quality index in Rosemead is 71% worse than the national average
  • The pollution index in Rosemead is 5017% worse than the national average

Compare Rosemead, CA Weather

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      Rosemead 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
      January48°F70°F58°F3.5"
      February50°F70°F59°F2.9"
      March52°F72°F61°F1.5"
      April55°F74°F63°F0.7"
      May58°F75°F65°F0.5"
      June61°F78°F68°F0.0"
      July65°F83°F72°F0.0"
      August65°F84°F73°F0.0"
      September64°F85°F72°F0.3"
      October60°F81°F69°F0.7"
      November54°F75°F63°F0.8"
      December48°F69°F57°F2.8"

      Rosemead 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.
      IndexRosemeadCaliforniaNational
      Air quality index725542
      Pollution index139,490,00010,473,1902,726,193

      Rosemead 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 Rosemead temperature with heat index

      Rosemead monthly precipitation with daily maximum

      Rosemead monthly snow depth with daily maximum

      Rosemead monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Valinda, CA22,6657244.0%
      West Puente Valley, CA23,5557244.0%
      Gardena, CA59,4017244.0%
      West Athens, CA9,5547244.0%
      Bellflower, CA76,3397244.0%
      Rosemead, CA53,8507244.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Elyria, OH53,84450= 100
      Aspen Hill, MD53,869476.0%
      Novato, CA53,7814020.0%
      Minnetonka, MN53,760468.0%
      Paramount, CA53,9497244.0%
      Rosemead, CA53,8507244.0%
      Source: The Rosemead, 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.