TODAY JUL22
TEMPERATURE67
HUMIDITY84
PRESSURE29.98
WIND COND.230 5.8
  • 7668Tue
  • 7967Wed
  • 7867Thu
  • 7665Fri
  • 7666Sat
daynightWeather update from Los Angeles, Los Angeles International Airport at
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Westchester 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
January48°F70°F58°F3.5"
February50°F70°F59°F2.9"
March52°F72°F61°F1.5"
April55°F74°F63°F0.7"
May58°F75°F65°F0.5"
June61°F78°F68°F0.0"
July65°F83°F72°F0.0"
August65°F84°F73°F0.0"
September64°F85°F72°F0.3"
October60°F81°F69°F0.7"
November54°F75°F63°F0.8"
December48°F69°F57°F2.8"

Did you know?

  • The highest monthly average temperature in Westchester for August is 73 degrees.
  • The lowest monthly average temperature in Westchester for December is 57 degrees.
  • The most monthly precipitation in Westchester occurs in January with 3.5 inches.
  • The air quality index in Westchester is 49% worse than the national average.
  • The pollution index in Westchester is 16% better than the national average.

Compare Los Angeles, CA Weather To Other Cities

Westchester 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.
IndexWestchesterLos AngelesCalifornia
Air quality index747455
Pollution index4,251,410139,490,00018,106,726

Westchester air quality information

MeasurementTotal
Days measured365
Days with good air quality25
Days with moderate air quality260
Days w/ poor A.Q. for sensitive groups76
Days with unhealthy air quality4

Westchester air quality information

PollutantTotal
Arsenic0.200%
Benzene0.950%
Carbon Tetrachloride0.080%
Lead1.320%
Mercury0.440%

Average monthly Westchester temperature with heat index

Westchester monthly precipitation with daily maximum

Westchester monthly snow depth with daily maximum

Westchester monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Beverly Hills, CA34,6277448%
Compton, CA97,7407448%
East Los Angeles, CA124,1917448%
Gardena, CA59,8987448%
Hidden Hills, CA1,5737448%
Los Angeles, CA3,918,8727448%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Chicago, IL2,714,0176020%
Houston, TX2,240,582524%
Philadelphia, PA1,559,9385714%
Phoenix, AZ1,555,3247448%
San Antonio, TX1,439,3584510%
Los Angeles, CA3,918,8727448%
Source: The Westchester, Los Angeles, 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.
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