RAC monitoring staff told the council that the 2025 peak ozone season has been relatively calm so far, with hourly readings and rolling averages showing values below the 2008 ozone standard of 75 parts per billion at monitors across the region.

‘‘Our highest forecast is currently 73 at Evergreen and 72 at Chatfield, Fort Collins West, and Rocky Flats North,’’ said Joe, RAC monitoring staff. He listed other high readings in the low 70s and noted the season has been less smoky than some recent years; staff said no days so far had been flagged for significant smoke impacts by the new smoke‑impact assessment tool.

Why it matters: ozone levels determine attainment planning steps and inform voluntary and regulatory strategies. Staff reminded the board that August and parts of September remain part of the ozone season and that favorable meteorology this summer likely reduced ozone buildup.

Kira, RAC planning staff, added context: while continued emission‑reduction programs probably helped, favorable turbulent atmospheric conditions this summer are an important factor in lower ozone formation. ‘‘We're not out of the woods yet,’’ she said, noting August can still produce peak ozone days and the council will continue to monitor and post weekly summaries on the RAC website.

Staff urged continued vigilance and said weekly summaries and historical data are posted online for public review.