TODAY MAY16
TEMPERATURE57
HUMIDITY84
PRESSURE
WIND COND.231 12.9
  • 6655Sun30%
  • 7257Mon
  • 7657Tue
  • 7656Wed
  • 7151Thu
daynightWeather update from WHITTIER HILLS at

Key findings

  • 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 45% worse than the national average
  • The pollution index in Rosemead is 2653% 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 index725550
      Pollution index139,490,00018,106,7265,066,862

      Rosemead air quality information

      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

      Rosemead air quality information

      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

      City, StatePopulationAir Quality IndexNational Avg.
      Altadena, CA45,0017244%
      Inglewood, CA111,0127244%
      Industry, CA2667244%
      South San Jose Hills, CA19,9147244%
      West Covina, CA107,6347244%
      Rosemead, CA54,5077244%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Dublin, CA54,5234314%
      Highland, CA54,4908978%
      Normal, IL54,5344412%
      Mount Prospect, IL54,5525510%
      Greenwood, IN54,564548%
      Rosemead, CA54,5077244%
      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.