TODAY FEB25
TEMPERATURE51
HUMIDITY22
PRESSURE
WIND COND.40 29
  • 6042Thu
  • 6042Fri
  • 5845Sat
  • 6142Sun
  • 6044Mon
daynightWeather update from LAS TRAMPAS at

Key findings

  • The highest monthly average temperature in Acalanes Ridge for July is 71 degrees
  • The lowest monthly average temperature in Acalanes Ridge for December is 47 degrees
  • The most monthly precipitation in Acalanes Ridge occurs in January with 3.3 inches
  • The air quality index in Acalanes Ridge is 20% better than the national average
  • The pollution index in Acalanes Ridge is 170% worse than the national average

Compare Acalanes Ridge, CA Weather

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      Acalanes Ridge 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
      January39°F58°F48°F3.3"
      February43°F62°F52°F3.0"
      March45°F67°F54°F1.8"
      April47°F71°F57°F1.9"
      May52°F78°F63°F0.6"
      June56°F85°F68°F0.0"
      July58°F90°F71°F0.0"
      August57°F90°F70°F0.0"
      September56°F86°F68°F0.0"
      October50°F77°F62°F1.4"
      November45°F68°F55°F1.2"
      December40°F57°F47°F2.3"

      Acalanes Ridge 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.
      IndexAcalanes RidgeCaliforniaNational
      Air quality index405550
      Pollution index13,698,50018,106,7265,066,862

      Acalanes Ridge air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality290
      Days with moderate air quality74
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      Acalanes Ridge air quality information

      PollutantTotal
      Arsenic0.040%
      Benzene0.110%
      Carbon Tetrachloride0.330%
      Lead0.070%
      Mercury0.120%

      Average monthly Acalanes Ridge temperature with heat index

      Acalanes Ridge monthly precipitation with daily maximum

      Acalanes Ridge monthly snow depth with daily maximum

      Acalanes Ridge monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Castle Hill, CA1,2024020%
      Martinez, CA37,5444020%
      Pleasant Hill, CA34,3954020%
      Saranap, CA6,2114020%
      Blackhawk, CA9,4684020%
      Acalanes Ridge, CA1,0004020%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Greensburg, KS1,0001570%
      Green Valley CDP (Los Angeles County), CA1,0003530%
      Boothbay Harbor, ME1,0003628%
      Tumbling Shoals, AR1,0004510%
      Yosemite Valley, CA1,0003922%
      Acalanes Ridge, CA1,0004020%
      Source: The Acalanes Ridge, 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.