Mexicali Seasonal Pollution
Mexicali usually records its highest OpenAQ-derived EPA AQI in January and its cleanest month in August. The page uses OpenAQ-derived daily history for 3 mapped monitoring locations in Baja California, Mexico.
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Average EPA AQI
83
Rank 17 of 86 cities by average AQI
PM2.5
26.5
ug/m3 annualized city average
Seasonality
January
Cleanest: August
Health indicator
1.2
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Mexicali
99
-
84
84
-
82
-
51
60
-
-
-
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Mexicali, the current global analytics build covers 47 daily rows from 2024-01-01 to 2024-10-28. The calculations normalize PM2.5 and PM10 observations into US EPA AQI bands so country, city, and tool pages use one consistent method.