This Pennsylvania Fly Fishing Hatch Chart is a collection of dry fly hatches for many Pennsylvania Streams.
Dates of the hatches are approximations and can change from year to year.
The best way of knowing what is hatching on the streams is to check the Fishing Reports often. Good Luck!
Blue Winged Olive
Mid March to beginning of April and again in early Summer and Fall
18-20
Mid Morning to Late Afternoon
Early Dark Stone Fly
Mid March to beginning of April and again in early Summer and Fall
Size: 18-20
Mid Morning to Late Afternoon
Grannom Caddis
Fishing Creek, Penn’s Creek, Little Juniata, First Fork Sinnemahoning- Mid April – End of April
Size: 12-14
Mid Morning to Late Afternoon
Blue Quill
All Streams Except Spring Creek – Early April to Late April
Size: 16-18
Mid Afternoon to Evening
Quill Gordon
First Fork, Pine Creek, Slate and Cedar Run, Fishing Creek – Early April to Late April
14
Mid Afternoon to Evening
Caddis – Olive, Tan, Black
Mid April through September – Activity can vary greatly from stream to stream. You should have a variety of Caddis (color and size) with you from Spring through Fall
14-16
Late Morning to Evening
Hendrickson
All Streams Except Spring Creek – Early April to Early May
12-14
Early Afternoon to Early Evening
Red Quill
All Streams Except Spring Creek – Early April to Early May
14-16
Early Afternoon to Early Evening
March Brown / Grey Fox
All Stream Except Spring Creek – Mid May – Late May
10-12
Afternoon to Evening
Sulphur
All Streams – Early May – Mid June – Small Variety first and Large next
14-16
Evening
Cahill
Mid May – Mid June – All streams
12-16
Evening
Terrestrials – Ants, Beetles, Grass Hoppers
All Streams – Late May to Mid September – Fish ants and beetles in high foliage areas and Hoppers in meadow areas
N/A
All Day
Green Drake / Coffin Fly
All Streams Except Spring Creek and Little J – Late May to Mid June
8-10
Evening
Brown Drake
Kettle Creek, First Fork Sinnemahoning, Pine Creek, Slate Run and Cedar Run – Late May to Early June
10-12
Evening
Slate Drake
Penn’s Creek, Little J and Fishing Creek – Mid May through September waning in the middle of Summer
12-14
All Day – Early on cooler days and Later on Warmer days
Trico
Spring Creek, Little Juniata, Penn’s Creek, First Fork Sinnemahoning, Cross Fork (Kettle Creek), Slate Run, Cedar Run and Pine Creek – Mid July to Mid August
22-28
Early Morning to Late Morning
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