Given a location in the US, how can I see the average air quality during a given month/week/day based on historical data?

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Accepted answer

https://www.epa.gov/outdoor-air-quality-data/air-data-tile-plot:

Plot daily AQI values for a specific location and time period. Each square or β€œtile” represents one day of the year and is color-coded based on the AQI level for that day. The legend tallies the number of days in each AQI category.

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They also make all the data available as a CSV file for each year, so one can compute the daily/weekly/monthly trend by averaging over several years.


airnow.gov gives the air quality for a given day in different locations in a US state in the past. Downside: doesn't give directly a clear daily/weekly/monthly trend.

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