Östersund Seasonal Pollution
Östersund usually records its highest OpenAQ-derived EPA AQI in April and its cleanest month in September. The page uses OpenAQ-derived daily history for 2 mapped monitoring locations in Jämtland, Sweden.
Search city analytics
Average EPA AQI
28
Rank 11 of 31 cities by average AQI
PM2.5
5.5
ug/m3 annualized city average
Seasonality
April
Cleanest: September
Health indicator
0.3
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Östersund
18
14
27
70
41
22
19
19
12
15
19
37
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Östersund, the current global analytics build covers 289 daily rows from 2024-01-29 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.