TODAY AUG14
TEMPERATURE70
HUMIDITY85
PRESSURE29.9
WIND COND.268
  • 8767Tue
  • 8568Wed
  • 8668Thu
  • 8869Fri
  • 8868Sat
daynightWeather update from DW5256 La Mesa at

La Mesa 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
January45°F69°F56°F1.9"
February47°F69°F57°F2.2"
March50°F70°F59°F1.0"
April53°F72°F61°F0.7"
May57°F72°F63°F0.4"
June61°F76°F66°F0.0"
July65°F80°F71°F0.2"
August66°F82°F72°F0.0"
September64°F83°F72°F0.2"
October58°F80°F68°F0.5"
November51°F74°F62°F0.9"
December46°F68°F56°F2.5"

Did you know?

  • The highest monthly average temperature in La Mesa for August is 72 degrees.
  • The lowest monthly average temperature in La Mesa for December is 56 degrees.
  • The most monthly precipitation in La Mesa occurs in December with 2.5 inches.
  • The air quality index in La Mesa is 22% worse than the national average.
  • The pollution index in La Mesa is 804% worse than the national average.

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Compare La Mesa, CA Weather To Other Cities

La Mesa 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.
IndexLa MesaCaliforniaNational
Air quality index615550
Pollution index45,820,50018,106,7265,066,862

La Mesa 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

La Mesa air quality information

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

Average monthly La Mesa temperature with heat index

La Mesa monthly precipitation with daily maximum

La Mesa monthly snow depth with daily maximum

La Mesa monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Bostonia, CA16,2956122%
Crest, CA2,7336122%
Granite Hills, CA3,0716122%
Lakeside, CA21,4886122%
Rancho San Diego, CA22,0186122%
La Mesa, CA59,1256122%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Brookline, MA59,180476%
Rowlett, TX59,203548%
Kendale Lakes, FL59,2174118%
Chapel Hill, NC59,0053530%
Redmond, WA59,268492%
La Mesa, CA59,1256122%
Source: The La Mesa, 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.