TODAY JUL24
TEMPERATURE73
HUMIDITY76
PRESSURE29.96
WIND COND.310 3.4
  • 7367Wed
  • 7364Thu
  • 7165Fri
  • 7164Sat
  • 7065Sun
daynightWeather update from San Diego, San Diego International-Lindbergh Field at
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Loma Portal 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
January49°F68°F58°F1.7"
February51°F68°F59°F1.8"
March54°F69°F60°F1.0"
April56°F70°F62°F0.6"
May60°F70°F64°F0.4"
June62°F72°F66°F0.0"
July66°F76°F70°F0.2"
August67°F78°F71°F0.0"
September66°F78°F71°F0.2"
October61°F77°F68°F0.5"
November55°F73°F63°F0.9"
December49°F67°F58°F2.2"

Did you know?

  • The highest monthly average temperature in Loma Portal for August is 71 degrees.
  • The lowest monthly average temperature in Loma Portal for December is 58 degrees.
  • The most monthly precipitation in Loma Portal occurs in December with 2.2 inches.
  • The air quality index in Loma Portal is 23% worse than the national average.
  • The pollution index in Loma Portal is 804% worse than the national average.

Compare San Diego, CA Weather To Other Cities

Loma Portal 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.
IndexLoma PortalSan DiegoCalifornia
Air quality index616155
Pollution index45,820,50045,820,50018,106,726

Loma Portal air quality information

MeasurementTotal
Days measured365
Days with good air quality69
Days with moderate air quality277
Days w/ poor A.Q. for sensitive groups17
Days with unhealthy air quality1

Loma Portal air quality information

PollutantTotal
Arsenic1.130%
Benzene0.410%
Carbon Tetrachloride0.030%
Lead0.600%
Mercury0.080%

Average monthly Loma Portal temperature with heat index

Loma Portal monthly precipitation with daily maximum

Loma Portal monthly snow depth with daily maximum

Loma Portal monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Coronado, CA24,8526122%
Lemon Grove, CA26,4216122%
Spring Valley, CA30,1286122%
Imperial Beach, CA27,1806122%
National City, CA60,3496122%
San Diego, CA1,374,8126122%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
San Antonio, TX1,439,3584510%
Dallas, TX1,278,433548%
Phoenix, AZ1,555,3247448%
Philadelphia, PA1,559,9385714%
San Jose, CA1,009,363484%
San Diego, CA1,374,8126122%
Source: The Loma Portal, San Diego, 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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