Forecasted Ozone Exceedance Days

Year 2024

The table below is the current list of forecasted days to have ozone Air Quality Index (AQI) levels of Unhealthy for Sensitive Groups (USG), or worse, anywhere in Connecticut.

Month	Day	Day of the Week	PDF
**May	22	Wednesday	-
**June	4	Tuesday	-
**June	14	Friday	-
June	18	Tuesday	June 18, 2024
June	19	Wednesday	June 19, 2024
June	20	Thursday	June 20, 2024
June	21	Friday	June 21, 2024
June	22	Saturday	June 22, 2024
June	26	Wednesday	June 26, 2024
July	7	Sunday	July 7, 2024
July	8	Monday	July 8, 2024
July	9	Tuesday	July 9, 2024
July	15	Monday	July 15, 2024
July	16	Tuesday	July 16, 2024
July	17	Wednesday	July 17, 2024

*On a day marked with an *, the initial prediction of ozone conditions of "Moderate to Unhealthy for Sensitive Groups", or greater was revised to either "Good", or "Good to Moderate" or "Moderate" by 3 P.M. Therefore, on these days the regulated community is allowed to operate emergency engines, or other regulated equipment, after 3 P.M. on that given day. Any forecast that was "upgraded" (marked with an **) that day will not affect the forecast for the regulated community.

2023 Forecasted Unhealthy Ozone Days

2022 Forecasted Unhealthy Ozone Days

2021 Forecasted Unhealthy Ozone Days

2020 Forecasted Unhealthy Ozone Days

2019 Forecasted Unhealthy Ozone Days

2018 Forecasted Unhealthy Ozone Days

2017 Forecasted Unhealthy Ozone Days

2016 Forecasted Unhealthy Ozone Days

2015 Forecasted Unhealthy Ozone Days

2014 Forecasted Unhealthy Ozone Days

2013 Forecasted Unhealthy Ozone Days

2012 Forecasted Unhealthy Ozone Days