Valladolid Seasonal Pollution
Valladolid usually records its highest OpenAQ-derived EPA AQI in December and its cleanest month in March. The page uses OpenAQ-derived daily history for 6 mapped monitoring locations in Castille-Leon, Spain.
Search city analytics
Average EPA AQI
41
Rank 75 of 253 cities by average AQI
PM2.5
8.7
ug/m3 annualized city average
Seasonality
December
Cleanest: March
Health indicator
0.4
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Valladolid
48
45
28
34
32
37
39
48
36
36
51
56
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Valladolid, the current global analytics build covers 345 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.