TODAY MAY17
TEMPERATURE74
HUMIDITY41
PRESSURE
WIND COND.
  • 8349Tue
  • 7745Wed
  • 7449Thu
  • 7449Fri
  • 7650Sat
daynightWeather update from DIABLO GRANDE at

Key findings

  • The highest monthly average temperature in Patterson for July is 80.2 degrees
  • The lowest monthly average temperature in Patterson for January is 46.9 degrees
  • The most monthly precipitation in Patterson occurs in January with 2.4 inches
  • The air quality index in Patterson is 1% better than the national average
  • The pollution index in Patterson is 53% worse than the national average

Compare Patterson, CA Weather

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      Patterson 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
      January38°F58°F47°F2.4"
      February42°F64°F52°F1.9"
      March46°F70°F57°F1.7"
      April49°F76°F61°F1.3"
      May54°F85°F69°F0.4"
      June60°F93°F76°F0.2"
      July64°F98°F80°F0.0"
      August63°F96°F78°F0.0"
      September59°F91°F74°F0.1"
      October52°F80°F64°F0.7"
      November44°F68°F54°F1.1"
      December38°F58°F47°F2.3"

      Patterson 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.
      IndexPattersonCaliforniaNational
      Air quality index495550
      Pollution index7,774,44018,106,7265,066,862

      Patterson air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality201
      Days with moderate air quality141
      Days w/ poor A.Q. for sensitive groups22
      Days with unhealthy air quality1

      Patterson air quality information

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

      Average monthly Patterson temperature with heat index

      Patterson monthly precipitation with daily maximum

      Patterson monthly snow depth with daily maximum

      Patterson monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Bret Harte, CA5,315492%
      Empire, CA4,379492%
      Monterey Park Tract, CA338492%
      Newman, CA10,808492%
      Westley, CA707492%
      Patterson, CA21,205492%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Oxford, AL21,2023824%
      Decatur, GA21,210524%
      Clinton, UT21,2104510%
      South Milwaukee, WI21,1974412%
      Arnold, MO21,196548%
      Patterson, CA21,205492%
      Source: The Patterson, 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.