TODAY AUG16
TEMPERATURE71
HUMIDITY50
PRESSURE
WIND COND.158 8
  • 9168Thu
  • 9368Fri
  • 9468Sat
  • 9568Sun
  • 9670Mon
daynightWeather update from CAMP 9 at

Sylmar Average Weather

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 Sylmar for August is 73 degrees.
  • The lowest monthly average temperature in Sylmar for December is 57 degrees.
  • The most monthly precipitation in Sylmar occurs in January with 3.5 inches.
  • The air quality index in Sylmar is 48% worse than the national average.
  • The pollution index in Sylmar is 2652% worse than the national average.

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Compare Los Angeles, CA Weather To Other Cities

Sylmar 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.
IndexSylmarLos AngelesCalifornia
Air quality index747455
Pollution index139,490,000139,490,00018,106,726

Sylmar 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

Sylmar air quality information

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

Average monthly Sylmar temperature with heat index

Sylmar monthly precipitation with daily maximum

Sylmar monthly snow depth with daily maximum

Sylmar monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Agua Dulce, CA3,5417448%
Calabasas, CA24,0917448%
Hidden Hills, CA1,5737448%
Santa Clarita, CA180,3037448%
Val Verde, CA2,7167448%
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 Sylmar, 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.