Ohio EPA classifies it as Exceptional Warmwater Habitat and Exceptional Warmwater Habitat / Coldwater Habitat, managed as Exceptional Warmwater Habitat — that is the season and creel row to look up. Big Darby Creek averages 77.6 °F in July across 1 gauged stretch, so the middle of summer is a morning-and-evening proposition rather than a bad month.
There is no hatch record for Ohio in this dataset, and the nearest one on file is the Virginia mountains' — too far from this water to stand in for it. So this page says what it can measure: the season and the water temperature.
Ohio publishes no season on this reach in the file this site reads. Ohio EPA classifies it as Exceptional Warmwater Habitat, Exceptional Warmwater Habitat / Coldwater Habitat, managed as Exceptional Warmwater Habitat, and that is the row to look up in the digest — the season and creel rules follow the classification rather than the river. What the state designates on this water → Ohio regulations →
July is the warmest month and the one this site measures: 1 gauged stretch average 77.6 °F . Everything either side of July is colder than that.
Big Darby Creek — live water temperature, regulations and access