TODAY OCT20
TEMPERATURE
HUMIDITY
PRESSURE29.94
WIND COND.77
  • 8859Sat
  • 8357Sun
  • 7957Mon
  • 7858Tue
  • 7957Wed
daynightWeather update from EW3225 Laguna Hills at
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Mission Viejo 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°F69°F57°F2.3"
February49°F69°F58°F1.9"
March52°F70°F60°F0.9"
April54°F72°F62°F0.6"
May59°F73°F65°F0.3"
June62°F76°F67°F0.0"
July66°F80°F71°F0.1"
August66°F82°F72°F0.0"
September65°F82°F72°F0.2"
October60°F79°F68°F0.5"
November54°F75°F63°F0.7"
December48°F68°F57°F2.4"

Did you know?

  • The highest monthly average temperature in Mission Viejo for August is 72 degrees.
  • The lowest monthly average temperature in Mission Viejo for December is 57 degrees.
  • The most monthly precipitation in Mission Viejo occurs in December with 2.4 inches.
  • The air quality index in Mission Viejo is 70% worse than the national average.
  • The pollution index in Mission Viejo is 772% worse than the national average.

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Compare Mission Viejo, CA Weather To Other Cities

Mission Viejo 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.
IndexMission ViejoCaliforniaNational
Air quality index855550
Pollution index44,192,60018,106,7265,066,862

Mission Viejo air quality information

MeasurementTotal
Days measured365
Days with good air quality24
Days with moderate air quality211
Days w/ poor A.Q. for sensitive groups102
Days with unhealthy air quality25

Mission Viejo air quality information

PollutantTotal
Arsenic0.030%
Benzene0.280%
Carbon Tetrachloride0.001%
Lead0.220%
Mercury0.140%

Average monthly Mission Viejo temperature with heat index

Mission Viejo monthly precipitation with daily maximum

Mission Viejo monthly snow depth with daily maximum

Mission Viejo monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Coto de Caza, CA14,8458570%
Laguna Beach, CA23,2048570%
Lake Forest, CA80,6588570%
Orange, CA139,9198570%
Santa Ana, CA333,6058570%
Mission Viejo, CA96,1788570%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Portsmouth, VA96,0713922%
Tuscaloosa, AL96,3523040%
Lawton, OK96,7284216%
Vacaville, CA95,6074314%
Dearborn, MI95,520524%
Mission Viejo, CA96,1788570%
Source: The Mission Viejo, 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.