BirdTroutOpen the map When to fish the Clarion River, Pennsylvania
PA DEP classifies it as Cold Water Fishes and Warm Water Fishes, managed as Cold Water Fishes and Warm Water Fishes — that is the season and creel row to look up. The Clarion River averages 63.7 °F in July across 3 gauged stretches, so the middle of summer is a morning-and-evening proposition rather than a bad month.
There is no hatch record for Pennsylvania in this dataset, so this page does not guess at one. The season and the water temperature are below.
The season
Pennsylvania publishes no season on this reach in the file this site reads. PA DEP classifies it as Cold Water Fishes, Warm Water Fishes, managed as Cold Water Fishes, Warm Water Fishes, 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 → Pennsylvania regulations →
Water temperature through the year
July is the warmest month and the one this site measures: 3 gauged stretches average 63.7 °F , from 59.9 °F at the coldest to 66.8 °F at the warmest. Everything either side of July is colder than that.
More about Clarion River
Clarion River — live water temperature, regulations and access