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Key findings

  • The highest monthly average temperature in Lancaster for July is 84.2 degrees
  • The lowest monthly average temperature in Lancaster for December is 43.1 degrees
  • The most monthly precipitation in Lancaster occurs in January with 1.6 inches
  • The air quality index in Lancaster is 45% worse than the national average
  • The pollution index in Lancaster is 316% worse than the national average

Compare Lancaster, CA Weather

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      Lancaster 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
      January30°F60°F44°F1.6"
      February34°F64°F48°F1.2"
      March40°F70°F54°F0.6"
      April44°F76°F59°F0.3"
      May53°F84°F68°F0.1"
      June62°F94°F78°F0.0"
      July68°F100°F84°F0.2"
      August65°F99°F83°F0.0"
      September56°F93°F75°F0.2"
      October46°F81°F63°F0.4"
      November36°F70°F52°F0.4"
      December30°F59°F43°F1.0"

      Lancaster 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.
      IndexLancasterCaliforniaNational
      Air quality index725550
      Pollution index21,095,50018,106,7265,066,862

      Lancaster air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality66
      Days with moderate air quality208
      Days w/ poor A.Q. for sensitive groups62
      Days with unhealthy air quality28

      Lancaster air quality information

      PollutantTotal
      Arsenic1.700%
      Benzene0.350%
      Carbon Tetrachloride0.004%
      Lead0.580%
      Mercury1.550%

      Average monthly Lancaster temperature with heat index

      Lancaster monthly precipitation with daily maximum

      Lancaster monthly snow depth with daily maximum

      Lancaster monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Rosamond, CA19,6726734%
      Desert View Highlands, CA2,4847244%
      Agua Dulce, CA3,5417244%
      Leona Valley, CA1,5827244%
      Littlerock, CA1,7867244%
      Lancaster, CA159,6517244%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Peoria, AZ158,6777448%
      Corona, CA161,6148978%
      Eugene, OR161,6493824%
      Salem, OR161,9753236%
      Fort Collins, CO157,251484%
      Lancaster, CA159,6517244%
      Source: The Lancaster, 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.