TODAY APR21
TEMPERATURE68
HUMIDITY27
PRESSURE
WIND COND.200 20.9
  • 6243Wed
  • 6646Thu
  • 6845Fri
  • 6242Sat
  • 4836Sun
daynightWeather update from BANNER ROAD at

Key findings

  • The highest monthly average temperature in Arnold for July is 65.1 degrees
  • The lowest monthly average temperature in Arnold for January is 28.6 degrees
  • The most monthly precipitation in Arnold occurs in February with 9.4 inches
  • The air quality index in Arnold is 22% better than the national average
  • The pollution index in Arnold is 68% better than the national average

Compare Arnold, CA Weather

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      Arnold 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
      January14°F46°F29°F6.9"
      February20°F52°F35°F9.4"
      March24°F58°F40°F3.0"
      April26°F60°F43°F3.9"
      May31°F68°F49°F3.6"
      June38°F80°F60°F1.4"
      July43°F85°F65°F2.1"
      August40°F83°F63°F2.0"
      September35°F77°F56°F2.2"
      October28°F67°F46°F4.3"
      November19°F55°F35°F2.6"
      December15°F47°F29°F5.7"

      Arnold 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.
      IndexArnoldCaliforniaNational
      Air quality index395550
      Pollution index1,641,28018,106,7265,066,862

      Arnold air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality331
      Days with moderate air quality33
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality

      Arnold air quality information

      PollutantTotal
      Arsenic0.090%
      Benzene0.030%
      Carbon Tetrachloride0.000%
      Lead0.020%
      Mercury0.010%

      Average monthly Arnold temperature with heat index

      Arnold monthly precipitation with daily maximum

      Arnold monthly snow depth with daily maximum

      Arnold monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Buckhorn, CA2,7253922%
      West Point, CA6693922%
      Angels, CA3,7743922%
      Forest Meadows, CA1,7363922%
      Vallecito, CA2943922%
      Arnold, CA2,6243922%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Spooner, WI2,6243530%
      Middletown, IN2,6244216%
      Hartford, MI2,6243922%
      Glencoe, FL2,6243726%
      Green Park, MO2,625548%
      Arnold, CA2,6243922%
      Source: The Arnold, 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.