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Key findings

  • The highest monthly average temperature in Walnut Creek for July is 85 degrees
  • The lowest monthly average temperature in Walnut Creek for December is 42 degrees
  • The most monthly precipitation in Walnut Creek occurs in July with 1.1 inches
  • The air quality index in Walnut Creek is 74% better than the national average
  • The pollution index in Walnut Creek is 8% worse than the national average

Compare Walnut Creek, AZ Weather

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      Walnut Creek 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
      January29°F58°F43°F1.1"
      February33°F63°F47°F1.0"
      March37°F70°F54°F0.5"
      April41°F77°F60°F0.4"
      May50°F86°F70°F0.1"
      June61°F97°F82°F0.1"
      July70°F100°F85°F1.1"
      August68°F98°F83°F1.1"
      September60°F92°F76°F0.9"
      October47°F81°F64°F0.8"
      November37°F70°F52°F0.3"
      December29°F57°F42°F1.1"

      Walnut Creek 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.
      IndexWalnut CreekArizonaNational
      Air quality index135750
      Pollution index5,460,4305,576,4945,066,862

      Walnut Creek air quality information

      MeasurementTotal
      Days measured364
      Days with good air quality357
      Days with moderate air quality7
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Walnut Creek air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.070%
      Carbon Tetrachloride0.010%
      Lead0.040%
      Mercury0.001%

      Average monthly Walnut Creek temperature with heat index

      Walnut Creek monthly precipitation with daily maximum

      Walnut Creek monthly snow depth with daily maximum

      Walnut Creek monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Lazy Y U, AZ6181374%
      Golden Valley, AZ8,4041374%
      So-Hi, AZ2171374%
      McConnico, AZ01374%
      Oatman, AZ811374%
      Walnut Creek, AZ4431374%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Ravia, OK4434314%
      Deal Island, MD4434118%
      Lanesboro, PA4433824%
      Warm Springs, GA4434216%
      Bear Creek, WI4433726%
      Walnut Creek, AZ4431374%
      Source: The Walnut Creek, AZ 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.