Free Resource · Updated 2026
Month-by-month hatch timing and fly pattern recommendations for Yellow Breeches Creek in 2026. A Cumberland County tailwater with year-round dry fly opportunities, from winter midges to the spectacular White Fly hatch in August.
Yellow Breeches Creek Hatch Calendar — Quick Reference
Yellow Breeches Creek is a tailwater fed by cold discharge from Lake Letort in Cumberland County. The stable year-round water temperature makes it one of the few Pennsylvania streams where you can fish dry flies in January and February.
The stream holds wild brown and rainbow trout in the catch-and-release sections. It runs through Boiling Springs with good public access and has been a technical testing ground for Pennsylvania fly fishers for generations.
Midges fish through winter. Sulphurs run May through July. The White Fly hatch in August is the highlight of late summer, with massive evening hatches driving trout into a feeding frenzy. BWOs fish reliably on overcast days in spring and fall.
See the full Pennsylvania Fly Hatch Chart for hatch timing across all of Pennsylvania's top trout streams.
Check Conditions Near Yellow Breeches CreekWhat to Fish
Ephoron leukon
A late summer spectacle on the Yellow Breeches. Massive evening hatches at dusk with trout feeding in a frenzy. The window is short, intense, and worth planning a trip around. Bring a headlamp.
Recommended: White Wulff, Comparadun #14
Ephemerella dorothea
Consistent evening hatches from May into July. Tailwater temps keep the hatch reliable and dense. Fish sip duns in tail-outs and slow glides at dusk. Fine tippet matters on the flat, clear sections.
Recommended: Parachute Adams, Sparkle Dun #16-18
Tricorythodes sp.
Morning spinner falls from first light to 9am. Trout sip tiny spent spinners in flat water. Technical presentation required. 6X tippet and a low profile on the bank.
Recommended: Trico Spinner #22-26
Chironomidae
The Yellow Breeches fishes midges through winter when other PA streams are locked up. Tailwater temps stay in the upper 30s and 40s. Nymphing midges under an indicator is the standard winter approach.
Recommended: Zebra Midge, WD-40 #22-26
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