TODAY JAN27
TEMPERATURE37
HUMIDITY70
PRESSURE30.16
WIND COND.166 9.6
  • 5737Wed
  • 6141Thu20%90%
  • 5338Fri80%
  • 5836Sat
  • 6440Sun
daynightWeather update from Motte Rimrock Reserve (UCNRS) at

Key findings

  • The highest monthly average temperature in Perris for August is 77 degrees
  • The lowest monthly average temperature in Perris for December is 50 degrees
  • The most monthly precipitation in Perris occurs in December with 2.9 inches
  • The air quality index in Perris is 79% worse than the national average
  • The pollution index in Perris is 350% worse than the national average

Compare Perris, CA Weather

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      Perris 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
      January37°F67°F51°F2.5"
      February38°F68°F52°F1.6"
      March40°F73°F56°F1.1"
      April44°F77°F59°F0.8"
      May50°F81°F64°F0.3"
      June55°F90°F72°F0.0"
      July62°F95°F77°F0.3"
      August61°F95°F77°F0.7"
      September58°F93°F74°F0.2"
      October50°F83°F65°F0.3"
      November41°F75°F57°F0.7"
      December36°F66°F50°F2.9"

      Perris 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.
      IndexPerrisCaliforniaNational
      Air quality index895550
      Pollution index22,790,90018,106,7265,066,862

      Perris air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality42
      Days with moderate air quality178
      Days w/ poor A.Q. for sensitive groups79
      Days with unhealthy air quality58

      Perris air quality information

      PollutantTotal
      Arsenic0.060%
      Benzene0.190%
      Carbon Tetrachloride0.010%
      Lead0.220%
      Mercury0.230%

      Average monthly Perris temperature with heat index

      Perris monthly precipitation with daily maximum

      Perris monthly snow depth with daily maximum

      Perris monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Calimesa, CA8,3798978%
      Riverside, CA318,6788978%
      Hemet, CA82,7488978%
      Meadowbrook, CA2,7828978%
      Warm Springs, CA1,7098978%
      Perris, CA73,7188978%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Manteca, CA73,5704510%
      Gastonia, NC73,8773628%
      Union City, CA73,5004314%
      Milpitas, CA73,4474314%
      Appleton, WI73,4463726%
      Perris, CA73,7188978%
      Source: The Perris, 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.