Toowoomba Seasonal Pollution
Toowoomba usually records its highest OpenAQ-derived EPA AQI in September and its cleanest month in April. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Queensland, Australia.
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Average EPA AQI
29
Rank 25 of 59 cities by average AQI
PM2.5
5.6
ug/m3 annualized city average
Seasonality
September
Cleanest: April
Health indicator
0.3
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Toowoomba
25
29
24
20
23
30
24
38
44
39
31
24
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Toowoomba, the current global analytics build covers 356 daily rows from 2024-01-04 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.