TODAY JUL12
TEMPERATURE94
HUMIDITY
PRESSURE29.86
WIND COND.
  • 9257Mon
  • 9457Tue
  • 9458Wed
  • 9158Thu
  • 9357Fri
daynightWeather update from Sacramento Executive Airport at

Key findings

  • The highest monthly average temperature in Walnut Grove for July is 74 degrees
  • The lowest monthly average temperature in Walnut Grove for January is 47 degrees
  • The most monthly precipitation in Walnut Grove occurs in December with 3.8 inches
  • The air quality index in Walnut Grove is 5% worse than the national average
  • The pollution index in Walnut Grove is 205% worse than the national average

Compare Walnut Grove, CA Weather

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      Walnut Grove 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°F3.3"
      February41°F63°F51°F3.1"
      March44°F68°F55°F2.9"
      April47°F74°F59°F1.8"
      May52°F82°F65°F0.5"
      June57°F90°F71°F0.3"
      July59°F95°F74°F0.0"
      August58°F93°F73°F0.0"
      September56°F90°F70°F0.1"
      October50°F79°F63°F1.2"
      November43°F66°F53°F1.6"
      December38°F57°F47°F3.8"

      Walnut Grove 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 GroveCaliforniaNational
      Air quality index525550
      Pollution index15,476,50018,106,7265,066,862

      Walnut Grove air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality171
      Days with moderate air quality173
      Days w/ poor A.Q. for sensitive groups21
      Days with unhealthy air quality0

      Walnut Grove air quality information

      PollutantTotal
      Arsenic0.090%
      Benzene0.130%
      Carbon Tetrachloride0.010%
      Lead0.130%
      Mercury0.070%

      Average monthly Walnut Grove temperature with heat index

      Walnut Grove monthly precipitation with daily maximum

      Walnut Grove monthly snow depth with daily maximum

      Walnut Grove monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Terminous, CA3784510%
      Acampo, CA4664510%
      Isleton, CA7874510%
      Thornton, CA9684510%
      Lodi, CA63,8424510%
      Walnut Grove, CA1,469524%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Union City, OK1,469484%
      Weber City, VA1,4694510%
      Kinsley, KS1,4681570%
      Flippin, AR1,4683628%
      Chatham, NY1,4703726%
      Walnut Grove, CA1,469524%
      Source: The Walnut Grove, 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.