TODAY JAN18
TEMPERATURE59
HUMIDITY50
PRESSURE
WIND COND.34 6.4
  • 7047
  • 6640Tue
  • 6441Wed
  • 6043Thu
  • 5639Fri
daynightWeather update from LOS ALTOS at

Key findings

  • The highest monthly average temperature in Triple El for July is 67 degrees
  • The lowest monthly average temperature in Triple El for January is 50 degrees
  • The most monthly precipitation in Triple El occurs in December with 2.6 inches
  • The air quality index in Triple El is 14% better than the national average
  • The pollution index in Triple El is 127% worse than the national average

Compare Palo Alto, CA Weather

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      Triple El 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
      January42°F61°F50°F2.4"
      February45°F63°F53°F2.4"
      March47°F67°F56°F2.0"
      April49°F70°F58°F1.3"
      May53°F73°F61°F0.3"
      June56°F77°F65°F0.2"
      July59°F78°F67°F0.0"
      August59°F78°F66°F0.0"
      September57°F80°F67°F0.1"
      October53°F75°F63°F0.7"
      November47°F67°F56°F1.3"
      December42°F60°F51°F2.6"

      Triple El 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.
      IndexTriple ElPalo AltoCalifornia
      Air quality index434355
      Pollution index11,477,20011,477,20018,106,726

      Triple El air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality263
      Days with moderate air quality98
      Days w/ poor A.Q. for sensitive groups4
      Days with unhealthy air quality0

      Triple El air quality information

      PollutantTotal
      Arsenic0.070%
      Benzene0.110%
      Carbon Tetrachloride0.000%
      Lead0.160%
      Mercury0.090%

      Average monthly Triple El temperature with heat index

      Triple El monthly precipitation with daily maximum

      Triple El monthly snow depth with daily maximum

      Triple El monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Pescadero, CA1,0403530%
      Loma Mar, CA1503530%
      South San Francisco, CA66,5874020%
      Santa Clara, CA122,7254314%
      Sunol, CA1,0044314%
      Palo Alto, CA66,6494314%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Portland, ME66,6494020%
      Camarillo, CA66,630468%
      Woodbury, MN66,699468%
      South San Francisco, CA66,5874020%
      Oshkosh, WI66,7133628%
      Palo Alto, CA66,6494314%
      Source: The Triple El, Palo Alto, 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.