Palencia Seasonal Pollution
Palencia usually records its highest OpenAQ-derived EPA AQI in May and its cleanest month in March. The page uses OpenAQ-derived daily history for 4 mapped monitoring locations in Castille-Leon, Spain.
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Average EPA AQI
45
Rank 49 of 253 cities by average AQI
PM2.5
6.8
ug/m3 annualized city average
Seasonality
May
Cleanest: March
Health indicator
0.3
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Palencia
38
36
21
50
76
37
37
43
38
40
42
63
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Palencia, the current global analytics build covers 316 daily rows from 2024-01-01 to 2024-12-31. The calculations normalize PM2.5 and PM10 observations into US EPA AQI bands so country, city, and tool pages use one consistent method.