What's hatching in the Pacific Northwest in May
63 fly patterns are active in the Pacific Northwest in May. Here's what to tie on — with sizes and full recipes.
Match the hatch live →May hatches — Pacific Northwest
Nymph · #18, #20, #22 · imitates Baetis
Nymph · #18, #20, #22 · imitates Baetis
Emerger · #18, #20, #22 · imitates Baetis
Emerger · #18, #20, #22, #24 · imitates Baetis
Dun · #18, #20, #22 · imitates Baetis
Dun · #18, #20, #22 · imitates Baetis
Spinner · #18, #20, #22 · imitates Baetis
Spinner · #18, #20, #22 · imitates Baetis
Nymph · #16, #18 · imitates Ephemerella excrucians
Nymph · #16, #18 · imitates Ephemerella excrucians
Emerger · #16, #18 · imitates Ephemerella excrucians
Emerger · #16, #18 · imitates Ephemerella excrucians
Dun · #16, #18 · imitates Ephemerella excrucians
Dun · #16, #18 · imitates Ephemerella excrucians
Spinner · #16, #18 · imitates Ephemerella excrucians
Spinner · #16, #18 · imitates Ephemerella excrucians
Nymph · #10, #12, #14 · imitates Rhithrogena morrisoni / Maccaffertium vicarium
Emerger · #10, #12, #14 · imitates Rhithrogena morrisoni / Maccaffertium vicarium
Dun · #10, #12, #14 · imitates Rhithrogena morrisoni / Maccaffertium vicarium
Nymph · #14, #16, #18 · imitates Hydropsyche
Nymph · #14, #16, #18 · imitates Hydropsyche
Nymph · #14, #16, #18 · imitates Hydropsyche
Emerger · #14, #16, #18 · imitates Hydropsyche
Emerger · #14, #16, #18 · imitates Hydropsyche
Emerger · #14, #16, #18 · imitates Hydropsyche
Dun · #14, #16, #18 · imitates Hydropsyche
Dun · #14, #16, #18 · imitates Hydropsyche
Dun · #14, #16, #18 · imitates Hydropsyche
Nymph · #4, #6, #8 · imitates Pteronarcys californica
Dun · #4, #6, #8 · imitates Pteronarcys californica
Nymph · #8, #10, #12 · imitates Hesperoperla pacifica
Nymph · #8, #10, #12 · imitates Hesperoperla pacifica
Dun · #8, #10, #12 · imitates Hesperoperla pacifica
Dun · #8, #10, #12 · imitates Hesperoperla pacifica
Nymph · #18, #20, #22 · imitates Chironomidae
Nymph · #18, #20, #22 · imitates Chironomidae
Nymph · #18, #20, #22 · imitates Chironomidae
Nymph · #18, #20, #22 · imitates Chironomidae
Emerger · #18, #20, #22 · imitates Chironomidae
Emerger · #18, #20, #22 · imitates Chironomidae
Emerger · #18, #20, #22 · imitates Chironomidae
Emerger · #18, #20, #22 · imitates Chironomidae
Nymph · #12, #14 · imitates Annelida
Nymph · #12, #14 · imitates Annelida
Nymph · #12, #14 · imitates Annelida
Nymph · #12, #14, #16 · imitates Attractor Nymph
Nymph · #12, #14, #16 · imitates Attractor Nymph
Streamer · #4, #6, #8, #10 · imitates Leech / Baitfish attractor
Streamer · #4, #6, #8, #10 · imitates Leech / Baitfish attractor
Streamer · #4, #6, #8, #10 · imitates Leech / Baitfish attractor
Streamer · #2, #4, #6 · imitates Cottidae (sculpin imitation)
Streamer · #2, #4, #6 · imitates Cottidae (sculpin imitation)
Nymph · #14, #16 · imitates Callibaetis coloradensis
Emerger · #14, #16 · imitates Callibaetis coloradensis
Dun · #14, #16 · imitates Callibaetis coloradensis
Spinner · #14, #16 · imitates Callibaetis coloradensis
Nymph · #14, #16 · imitates Heptagenia elegantula
Dun · #14, #16 · imitates Heptagenia elegantula
Spinner · #14, #16 · imitates Heptagenia elegantula
Nymph · #12, #14, #16 · imitates Rhyacophila
Emerger · #12, #14, #16 · imitates Rhyacophila
Nymph · #8, #10, #12 · imitates Tipula
Nymph · #10, #12, #14 · imitates Zygoptera
Other months in the Pacific Northwest
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec