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Signal Hill 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
January46°F70°F57°F2.6"
February48°F70°F58°F2.5"
March51°F72°F60°F1.0"
April53°F74°F62°F0.6"
May57°F75°F65°F0.3"
June61°F78°F67°F0.0"
July65°F83°F71°F0.2"
August65°F85°F72°F0.0"
September63°F85°F72°F0.3"
October59°F81°F68°F0.5"
November52°F76°F62°F0.7"
December46°F69°F56°F2.7"

Did you know?

  • The highest monthly average temperature in Signal Hill for August is 72 degrees.
  • The lowest monthly average temperature in Signal Hill for December is 56 degrees.
  • The most monthly precipitation in Signal Hill occurs in December with 2.7 inches.
  • The air quality index in Signal Hill is 48% worse than the national average.
  • The pollution index in Signal Hill is 16% better than the national average.

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Compare Signal Hill, CA Weather To Other Cities

Signal Hill 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.
IndexSignal HillCaliforniaNational
Air quality index745550
Pollution index4,251,41018,106,7265,066,862

Signal Hill 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

Signal Hill air quality information

PollutantTotal
Arsenic0.010%
Benzene0.100%
Carbon Tetrachloride0.000%
Lead0.010%
Mercury0.000%

Average monthly Signal Hill temperature with heat index

Signal Hill monthly precipitation with daily maximum

Signal Hill monthly snow depth with daily maximum

Signal Hill monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Bell Gardens, CA42,8057448%
Commerce, CA12,9977448%
Culver City, CA39,3957448%
East Rancho Dominguez, CA15,8877448%
Fountain Valley, CA56,6707448%
Signal Hill, CA11,4047448%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Centerton, AR11,4033922%
Two Rivers, WI11,4093726%
Summit, IL11,4096020%
Ionia, MI11,3963922%
Mendota, CA11,3946530%
Signal Hill, CA11,4047448%
Source: The Signal Hill, 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.