Saltillo Seasonal Pollution
Saltillo usually records its highest OpenAQ-derived EPA AQI in April and its cleanest month in December. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Coahuila, Mexico.
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Average EPA AQI
117
Rank 1 of 86 cities by average AQI
PM2.5
36.0
ug/m3 annualized city average
Seasonality
April
Cleanest: December
Health indicator
1.6
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Saltillo
-
-
-
162
100
99
-
-
-
-
-
83
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Saltillo, the current global analytics build covers 56 daily rows from 2024-01-15 to 2024-12-27. The calculations normalize PM2.5 and PM10 observations into US EPA AQI bands so country, city, and tool pages use one consistent method.