TODAY DEC23
TEMPERATURE56
HUMIDITY80
PRESSURE102170
WIND COND.320 9.4
  • 6152Mon20%70%
  • 5940Tue90%
  • 5345
  • 5448Thu
  • 5450Fri
daynightWeather update from Sacramento International Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Westlake for July is 74.3 degrees
  • The lowest monthly average temperature in Westlake for January is 46.5 degrees
  • The most monthly precipitation in Westlake occurs in December with 3.8 inches
  • The air quality index in Westlake is 24% worse than the national average
  • The pollution index in Westlake is 468% worse than the national average

Compare Sacramento, CA Weather

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      Westlake 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"

      Westlake 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.
      IndexWestlakeSacramentoCalifornia
      Air quality index525255
      Pollution index15,476,50015,476,50010,473,190

      Westlake air quality

      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

      Air quality details

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

      Average monthly Westlake temperature with heat index

      Westlake monthly precipitation with daily maximum

      Westlake monthly snow depth with daily maximum

      Westlake monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Robbins, CA4284412.0%
      Davis, CA68,640524.0%
      Woodland, CA59,759524.0%
      Carmichael, CA75,642524.0%
      La Riviera, CA11,570524.0%
      Sacramento, CA503,482524.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Mesa, AZ508,9187448.0%
      Atlanta, GA497,642524.0%
      Kansas City, MO491,158476.0%
      Fresno, CA526,1476020.0%
      Omaha, NE479,5294020.0%
      Sacramento, CA503,482524.0%
      Source: The Westlake, Sacramento, 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.