Air Data - Daily Air Quality Tracker
Compare daily AQI values for any year with the 20-year high and low (2000-2019) and the five-year average (2015-2019). You can also generate a one-page PDF report for 2020.
More information: The most recent AQI values are based on available ozone and PM2.5 data from AirNow (see "Use of AirNow Data" info box). The 20-year high/low backdrop is based on AQS data from 2000-2019. It shows the range of the highest and lowest daily max AQI values on each date. The 5-year average is based on AQS data from 2015-2019. It shows the average of daily max AQI values on each date.
Tip: Hover over lines to display data points. Download the data using the link below the charts.