TODAY DEC06
TEMPERATURE54
HUMIDITY100
PRESSURE30.09
WIND COND.
  • 6655Fri40%
  • 6455Sat60%50%
  • 6550Sun60%30%
  • 6649Mon
  • 6950Tue
daynightWeather update from Los Alamitos U. S. Army Airfield at
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Rossmoor 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
January45°F69°F56°F7.4"
February47°F68°F57°F5.5"
March50°F71°F60°F2.6"
April52°F73°F62°F1.3"
May57°F74°F64°F2.3"
June60°F77°F67°F0.1"
July64°F81°F71°F0.5"
August64°F83°F72°F0.2"
September62°F84°F71°F5.2"
October57°F80°F67°F1.7"
November50°F74°F61°F2.9"
December44°F67°F55°F7.6"

Did you know?

  • The highest monthly average temperature in Rossmoor for August is 72 degrees.
  • The lowest monthly average temperature in Rossmoor for December is 55 degrees.
  • The most monthly precipitation in Rossmoor occurs in December with 7.6 inches.
  • The air quality index in Rossmoor is 49% worse than the national average.
  • The pollution index in Rossmoor is 83% better than the national average.

Compare Rossmoor, CA Weather To Other Cities

Rossmoor 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.
IndexRossmoorCaliforniaNational
Air quality index745550
Pollution index858,65218,106,7265,066,862

Rossmoor 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

Rossmoor air quality information

PollutantTotal
Arsenic0.002%
Benzene0.010%
Carbon Tetrachloride0.000%
Lead0.020%
Mercury0.001%

Average monthly Rossmoor temperature with heat index

Rossmoor monthly precipitation with daily maximum

Rossmoor monthly snow depth with daily maximum

Rossmoor monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Bell, CA35,9277448%
Buena Park, CA82,7717448%
Compton, CA97,7407448%
Downey, CA113,2237448%
Fountain Valley, CA56,6707448%
Rossmoor, CA10,9337448%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Broomall, PA10,9355714%
Woods Cross, UT10,930476%
Brooklyn, OH10,9365510%
Suffern, NY10,936536%
Fairfield, AL10,93750= 100
Rossmoor, CA10,9337448%
Source: The Rossmoor, 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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