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Key findings

  • The highest monthly average temperature in Stockton for July is 77.1 degrees
  • The lowest monthly average temperature in Stockton for January is 46.3 degrees
  • The most monthly precipitation in Stockton occurs in January with 2.6 inches
  • The air quality index in Stockton is 10% better than the national average
  • The pollution index in Stockton is 185% worse than the national average

Compare Stockton, CA Weather

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      Stockton 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
      January36°F58°F46°F2.6"
      February39°F64°F51°F2.0"
      March43°F70°F56°F2.0"
      April46°F76°F60°F1.5"
      May51°F84°F66°F0.3"
      June56°F92°F73°F0.2"
      July59°F97°F77°F0.1"
      August59°F95°F76°F0.1"
      September56°F92°F72°F0.2"
      October49°F81°F64°F0.7"
      November41°F68°F54°F1.2"
      December36°F58°F47°F2.5"

      Stockton 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.
      IndexStocktonCaliforniaNational
      Air quality index455550
      Pollution index7,774,44010,473,1902,726,193

      Stockton air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality229
      Days with moderate air quality123
      Days w/ poor A.Q. for sensitive groups12
      Days with unhealthy air quality1

      Stockton air quality information

      PollutantTotal
      Arsenic0.030%
      Benzene0.090%
      Carbon Tetrachloride0.000%
      Lead0.050%
      Mercury0.040%

      Average monthly Stockton temperature with heat index

      Stockton monthly precipitation with daily maximum

      Stockton monthly snow depth with daily maximum

      Stockton monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Peters, CA4794510.0%
      Garden Acres, CA11,2094510.0%
      Manteca, CA73,5704510.0%
      Acampo, CA4664510.0%
      Waterloo, CA4964510.0%
      Stockton, CA301,4434510.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Anchorage, AK299,3213138.0%
      Cincinnati, OH298,011548.0%
      Pittsburgh, PA305,3055612.0%
      St. Paul, MN297,160468.0%
      Gatineau, QC293,695n/a 
      Stockton, CA301,4434510.0%
      Source: The Stockton, 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.