Hatch calendars by river
New Jersey trout hatch calendars.
2 rivers covered. Each calendar runs through the full year of mayfly, caddis, stonefly, midge, and terrestrial activity — with peak windows, fly patterns, and water temperature triggers.
What's hatching in New Jersey — May
Most-active hatches across New Jersey's 2 covered rivers right now. Tap a hatch for the full species profile.