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Key findings

  • The highest monthly average temperature in Colton for August is 77.8 degrees
  • The lowest monthly average temperature in Colton for December is 55.1 degrees
  • The most monthly precipitation in Colton occurs in December with 1.9 inches
  • The air quality index in Colton is 79% worse than the national average
  • The pollution index in Colton is 523% worse than the national average

Compare Colton, CA Weather

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      Colton 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
      January44°F70°F56°F1.6"
      February45°F72°F57°F1.2"
      March47°F75°F60°F0.7"
      April50°F78°F63°F0.5"
      May55°F82°F66°F0.2"
      June59°F89°F72°F0.0"
      July65°F94°F77°F0.2"
      August65°F95°F78°F0.1"
      September63°F94°F76°F0.2"
      October56°F85°F69°F0.2"
      November49°F77°F62°F0.5"
      December44°F69°F55°F1.9"

      Colton 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.
      IndexColtonCaliforniaNational
      Air quality index895550
      Pollution index31,575,30018,106,7265,066,862

      Colton 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

      Colton air quality information

      PollutantTotal
      Arsenic0.110%
      Benzene0.260%
      Carbon Tetrachloride0.020%
      Lead0.350%
      Mercury0.280%

      Average monthly Colton temperature with heat index

      Colton monthly precipitation with daily maximum

      Colton monthly snow depth with daily maximum

      Colton monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Riverside, CA318,6788978%
      Norco, CA26,8098978%
      Lake Mathews, CA5,9568978%
      Fontana, CA205,2288978%
      Rialto, CA102,4188978%
      Colton, CA53,8568978%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Castle Rock, CO53,7895816%
      Elyria, OH53,92850= 100
      Hacienda Heights, CA54,0337244%
      Euless, TX53,675512%
      Blue Springs, MO53,641476%
      Colton, CA53,8568978%
      Source: The Colton, 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.