Hradec Králové Seasonal Pollution
Hradec Králové usually records its highest OpenAQ-derived EPA AQI in January and its cleanest month in April. The page uses OpenAQ-derived daily history for 2 mapped monitoring locations in Královéhradecký Kraj, Czech Republic.
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Average EPA AQI
54
Rank 24 of 61 cities by average AQI
PM2.5
13.5
ug/m3 annualized city average
Seasonality
January
Cleanest: April
Health indicator
0.6
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Hradec Králové
67
50
66
43
46
48
45
55
47
58
65
54
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Hradec Králové, the current global analytics build covers 282 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.