Hatch charts
77 insects across 360 waters, rolled up from every river and lake guide on the site. Each water page carries its own twelve-month chart with matching fly patterns.
Hatching now · October
What is coming off this month
Blue-Winged Olive
peak on 181 waters, active on 44 more
Midge
peak on 53 waters, active on 112 more
Sculpin
peak on 28 waters, active on 29 more
Leech
peak on 22 waters, active on 7 more
Chironomid/Midge
peak on 16 waters, active on 13 more
Minnow
peak on 16 waters, active on 10 more
October Caddis
peak on 16 waters, active on 4 more
Crayfish
peak on 14 waters, active on 22 more
Coho
peak on 10 waters, active on 3 more
Chinook Salmon
peak on 9 waters, active on 2 more
Caddis
peak on 7 waters, active on 64 more
Steelhead
peak on 7 waters, active on 4 more
Twelve months
National hatch calendar
Cell shade is how many of the 360 waters have that insect at peak in that month. Darker means more waters.
| Insect | Waters | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Caddis | 234 | January: peak on 1 waters | February: peak on 2 waters | March: peak on 3 waters | April: peak on 44 waters | May: peak on 130 waters | June: peak on 143 waters | July: peak on 121 waters | August: peak on 79 waters | September: peak on 16 waters | October: peak on 7 waters | November: peak on 1 waters | December: peak on 0 waters |
| Blue-Winged Olive | 232 | January: peak on 1 waters | February: peak on 1 waters | March: peak on 111 waters | April: peak on 169 waters | May: peak on 14 waters | June: peak on 1 waters | July: peak on 0 waters | August: peak on 0 waters | September: peak on 38 waters | October: peak on 181 waters | November: peak on 64 waters | December: peak on 1 waters |
| Midge | 180 | January: peak on 136 waters | February: peak on 135 waters | March: peak on 110 waters | April: peak on 57 waters | May: peak on 2 waters | June: peak on 2 waters | July: peak on 2 waters | August: peak on 2 waters | September: peak on 2 waters | October: peak on 53 waters | November: peak on 108 waters | December: peak on 133 waters |
| Terrestrials | 150 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 1 waters | June: peak on 10 waters | July: peak on 76 waters | August: peak on 142 waters | September: peak on 43 waters | October: peak on 1 waters | November: peak on 0 waters | December: peak on 0 waters |
| Pale Morning Dun | 133 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 3 waters | June: peak on 56 waters | July: peak on 118 waters | August: peak on 58 waters | September: peak on 1 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Golden Stonefly | 128 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 2 waters | June: peak on 83 waters | July: peak on 89 waters | August: peak on 10 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Trico | 85 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 0 waters | July: peak on 27 waters | August: peak on 74 waters | September: peak on 19 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Sulphur | 78 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 50 waters | June: peak on 57 waters | July: peak on 5 waters | August: peak on 0 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Hendrickson | 65 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 37 waters | May: peak on 42 waters | June: peak on 1 waters | July: peak on 0 waters | August: peak on 0 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| March Brown | 64 | January: peak on 0 waters | February: peak on 1 waters | March: peak on 6 waters | April: peak on 9 waters | May: peak on 35 waters | June: peak on 15 waters | July: peak on 0 waters | August: peak on 0 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Sculpin | 62 | January: peak on 6 waters | February: peak on 6 waters | March: peak on 2 waters | April: peak on 4 waters | May: peak on 4 waters | June: peak on 3 waters | July: peak on 1 waters | August: peak on 1 waters | September: peak on 9 waters | October: peak on 28 waters | November: peak on 17 waters | December: peak on 8 waters |
| Light Cahill | 49 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 4 waters | June: peak on 40 waters | July: peak on 7 waters | August: peak on 0 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Salmonfly | 48 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 10 waters | June: peak on 39 waters | July: peak on 7 waters | August: peak on 0 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Crayfish | 48 | January: peak on 1 waters | February: peak on 1 waters | March: peak on 1 waters | April: peak on 17 waters | May: peak on 33 waters | June: peak on 29 waters | July: peak on 23 waters | August: peak on 14 waters | September: peak on 14 waters | October: peak on 14 waters | November: peak on 1 waters | December: peak on 1 waters |
| Damselfly | 47 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 13 waters | July: peak on 41 waters | August: peak on 33 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Green Drake | 45 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 4 waters | June: peak on 16 waters | July: peak on 13 waters | August: peak on 3 waters | September: peak on 2 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Grasshopper | 41 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 0 waters | July: peak on 37 waters | August: peak on 41 waters | September: peak on 8 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Little Black Stonefly | 40 | January: peak on 1 waters | February: peak on 10 waters | March: peak on 26 waters | April: peak on 7 waters | May: peak on 0 waters | June: peak on 0 waters | July: peak on 0 waters | August: peak on 0 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 1 waters |
| Isonychia | 38 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 3 waters | June: peak on 11 waters | July: peak on 9 waters | August: peak on 3 waters | September: peak on 20 waters | October: peak on 2 waters | November: peak on 0 waters | December: peak on 0 waters |
| Scud | 35 | January: peak on 2 waters | February: peak on 2 waters | March: peak on 2 waters | April: peak on 3 waters | May: peak on 3 waters | June: peak on 6 waters | July: peak on 7 waters | August: peak on 7 waters | September: peak on 7 waters | October: peak on 3 waters | November: peak on 2 waters | December: peak on 2 waters |
| Callibaetis | 31 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 18 waters | July: peak on 26 waters | August: peak on 30 waters | September: peak on 13 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Chironomid/Midge | 30 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 8 waters | April: peak on 13 waters | May: peak on 21 waters | June: peak on 22 waters | July: peak on 0 waters | August: peak on 1 waters | September: peak on 27 waters | October: peak on 16 waters | November: peak on 1 waters | December: peak on 0 waters |
| White Fly | 29 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 0 waters | July: peak on 4 waters | August: peak on 19 waters | September: peak on 3 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Leech | 29 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 7 waters | April: peak on 13 waters | May: peak on 18 waters | June: peak on 15 waters | July: peak on 8 waters | August: peak on 7 waters | September: peak on 24 waters | October: peak on 22 waters | November: peak on 3 waters | December: peak on 0 waters |
| Quill Gordon | 27 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 3 waters | April: peak on 20 waters | May: peak on 3 waters | June: peak on 0 waters | July: peak on 0 waters | August: peak on 0 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Minnow | 26 | January: peak on 1 waters | February: peak on 1 waters | March: peak on 10 waters | April: peak on 17 waters | May: peak on 8 waters | June: peak on 3 waters | July: peak on 4 waters | August: peak on 4 waters | September: peak on 12 waters | October: peak on 16 waters | November: peak on 7 waters | December: peak on 1 waters |
| Hellgrammite | 24 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 5 waters | June: peak on 18 waters | July: peak on 17 waters | August: peak on 6 waters | September: peak on 2 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Brown Drake | 23 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 1 waters | June: peak on 18 waters | July: peak on 2 waters | August: peak on 0 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| October Caddis | 20 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 0 waters | July: peak on 0 waters | August: peak on 0 waters | September: peak on 3 waters | October: peak on 16 waters | November: peak on 0 waters | December: peak on 0 waters |
| Yellow Sally | 19 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 2 waters | July: peak on 13 waters | August: peak on 1 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Hex | 18 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 15 waters | July: peak on 8 waters | August: peak on 0 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Crane Fly | 17 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 0 waters | July: peak on 3 waters | August: peak on 2 waters | September: peak on 11 waters | October: peak on 3 waters | November: peak on 0 waters | December: peak on 0 waters |
| Grannom | 15 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 8 waters | May: peak on 5 waters | June: peak on 0 waters | July: peak on 0 waters | August: peak on 0 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Coho Salmon | 15 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 0 waters | July: peak on 1 waters | August: peak on 7 waters | September: peak on 9 waters | October: peak on 6 waters | November: peak on 1 waters | December: peak on 0 waters |
| Topwater | 14 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 1 waters | May: peak on 3 waters | June: peak on 9 waters | July: peak on 12 waters | August: peak on 10 waters | September: peak on 2 waters | October: peak on 2 waters | November: peak on 0 waters | December: peak on 0 waters |
| Coho | 13 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 0 waters | July: peak on 0 waters | August: peak on 0 waters | September: peak on 1 waters | October: peak on 10 waters | November: peak on 4 waters | December: peak on 1 waters |
| Chinook Salmon | 13 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 0 waters | July: peak on 0 waters | August: peak on 1 waters | September: peak on 5 waters | October: peak on 9 waters | November: peak on 0 waters | December: peak on 0 waters |
| Slate Drake | 11 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 3 waters | July: peak on 0 waters | August: peak on 1 waters | September: peak on 6 waters | October: peak on 1 waters | November: peak on 0 waters | December: peak on 0 waters |
| Steelhead | 11 | January: peak on 0 waters | February: peak on 1 waters | March: peak on 5 waters | April: peak on 6 waters | May: peak on 0 waters | June: peak on 0 waters | July: peak on 0 waters | August: peak on 1 waters | September: peak on 3 waters | October: peak on 7 waters | November: peak on 6 waters | December: peak on 3 waters |
| Smallmouth Bass | 11 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 1 waters | April: peak on 1 waters | May: peak on 1 waters | June: peak on 8 waters | July: peak on 8 waters | August: peak on 7 waters | September: peak on 2 waters | October: peak on 1 waters | November: peak on 0 waters | December: peak on 0 waters |
| King Salmon | 10 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 8 waters | July: peak on 6 waters | August: peak on 1 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Brown Trout | 10 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 2 waters | June: peak on 2 waters | July: peak on 0 waters | August: peak on 0 waters | September: peak on 2 waters | October: peak on 4 waters | November: peak on 2 waters | December: peak on 0 waters |
| Minnow Patterns | 10 | January: peak on 0 waters | February: peak on 1 waters | March: peak on 1 waters | April: peak on 4 waters | May: peak on 8 waters | June: peak on 5 waters | July: peak on 3 waters | August: peak on 3 waters | September: peak on 8 waters | October: peak on 6 waters | November: peak on 2 waters | December: peak on 0 waters |
| Kokanee | 10 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 1 waters | May: peak on 2 waters | June: peak on 2 waters | July: peak on 7 waters | August: peak on 7 waters | September: peak on 3 waters | October: peak on 1 waters | November: peak on 1 waters | December: peak on 1 waters |
| Sowbug | 9 | January: peak on 1 waters | February: peak on 1 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 1 waters | July: peak on 1 waters | August: peak on 1 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 1 waters |
| Skwala | 9 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 2 waters | April: peak on 6 waters | May: peak on 0 waters | June: peak on 0 waters | July: peak on 0 waters | August: peak on 0 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Spring Chinook | 9 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 1 waters | May: peak on 5 waters | June: peak on 8 waters | July: peak on 3 waters | August: peak on 0 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Gray Drake | 9 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 1 waters | June: peak on 4 waters | July: peak on 2 waters | August: peak on 1 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Shad | 8 | January: peak on 1 waters | February: peak on 3 waters | March: peak on 1 waters | April: peak on 2 waters | May: peak on 3 waters | June: peak on 3 waters | July: peak on 3 waters | August: peak on 3 waters | September: peak on 2 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 1 waters |
| Winter Steelhead | 8 | January: peak on 6 waters | February: peak on 7 waters | March: peak on 2 waters | April: peak on 1 waters | May: peak on 0 waters | June: peak on 0 waters | July: peak on 0 waters | August: peak on 0 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 4 waters |
| Arctic Grayling | 8 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 4 waters | June: peak on 7 waters | July: peak on 5 waters | August: peak on 5 waters | September: peak on 2 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Sockeye Salmon | 8 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 2 waters | July: peak on 3 waters | August: peak on 6 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Pink Salmon | 7 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 0 waters | July: peak on 1 waters | August: peak on 2 waters | September: peak on 2 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Dolly Varden | 6 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 0 waters | July: peak on 1 waters | August: peak on 6 waters | September: peak on 5 waters | October: peak on 2 waters | November: peak on 0 waters | December: peak on 0 waters |
| Summer Steelhead | 6 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 3 waters | July: peak on 3 waters | August: peak on 1 waters | September: peak on 0 waters | October: peak on 3 waters | November: peak on 3 waters | December: peak on 0 waters |
| Rainbow Trout | 6 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 0 waters | July: peak on 1 waters | August: peak on 2 waters | September: peak on 5 waters | October: peak on 5 waters | November: peak on 1 waters | December: peak on 0 waters |
| Mother's Day Caddis | 5 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 5 waters | June: peak on 0 waters | July: peak on 0 waters | August: peak on 0 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Caddis (general) | 5 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 4 waters | June: peak on 5 waters | July: peak on 5 waters | August: peak on 0 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Little Yellow Stonefly | 5 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 2 waters | July: peak on 0 waters | August: peak on 1 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Mahogany Dun | 5 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 0 waters | July: peak on 0 waters | August: peak on 0 waters | September: peak on 3 waters | October: peak on 1 waters | November: peak on 0 waters | December: peak on 0 waters |
| Fall Chinook | 5 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 0 waters | July: peak on 0 waters | August: peak on 1 waters | September: peak on 5 waters | October: peak on 4 waters | November: peak on 1 waters | December: peak on 0 waters |
| Brook Trout | 5 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 0 waters | July: peak on 0 waters | August: peak on 0 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Walleye Run | 5 | January: peak on 1 waters | February: peak on 2 waters | March: peak on 3 waters | April: peak on 3 waters | May: peak on 2 waters | June: peak on 1 waters | July: peak on 0 waters | August: peak on 0 waters | September: peak on 0 waters | October: peak on 1 waters | November: peak on 1 waters | December: peak on 1 waters |
| White Bass Run | 4 | January: peak on 0 waters | February: peak on 1 waters | March: peak on 3 waters | April: peak on 4 waters | May: peak on 1 waters | June: peak on 0 waters | July: peak on 0 waters | August: peak on 0 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Muskie | 4 | January: peak on 2 waters | February: peak on 2 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 0 waters | July: peak on 0 waters | August: peak on 0 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 3 waters | December: peak on 4 waters |
| Chum Salmon | 4 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 0 waters | July: peak on 2 waters | August: peak on 2 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 1 waters | December: peak on 0 waters |
| Resident Trout | 4 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 1 waters | July: peak on 3 waters | August: peak on 4 waters | September: peak on 2 waters | October: peak on 1 waters | November: peak on 0 waters | December: peak on 0 waters |
| Steelhead (spring) | 4 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 3 waters | May: peak on 1 waters | June: peak on 0 waters | July: peak on 0 waters | August: peak on 0 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Steelhead (fall) | 4 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 0 waters | July: peak on 0 waters | August: peak on 0 waters | September: peak on 1 waters | October: peak on 2 waters | November: peak on 2 waters | December: peak on 0 waters |
| Grilse | 4 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 0 waters | July: peak on 4 waters | August: peak on 0 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Dragonfly | 4 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 0 waters | July: peak on 4 waters | August: peak on 4 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Stocked Trout | 3 | January: peak on 2 waters | February: peak on 2 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 0 waters | July: peak on 0 waters | August: peak on 0 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 2 waters |
| Mysis Shrimp | 3 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 0 waters | July: peak on 0 waters | August: peak on 0 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Mayfly | 3 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 1 waters | June: peak on 0 waters | July: peak on 0 waters | August: peak on 0 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Skwala Stonefly | 3 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 1 waters | April: peak on 1 waters | May: peak on 0 waters | June: peak on 0 waters | July: peak on 0 waters | August: peak on 0 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Hexagenia | 3 | January: peak on 0 waters | February: peak on 0 waters | March: peak on 0 waters | April: peak on 0 waters | May: peak on 0 waters | June: peak on 1 waters | July: peak on 2 waters | August: peak on 0 waters | September: peak on 0 waters | October: peak on 0 waters | November: peak on 0 waters | December: peak on 0 waters |
| Scud (year-round) | 3 | January: peak on 1 waters | February: peak on 1 waters | March: peak on 1 waters | April: peak on 2 waters | May: peak on 3 waters | June: peak on 3 waters | July: peak on 3 waters | August: peak on 3 waters | September: peak on 2 waters | October: peak on 2 waters | November: peak on 1 waters | December: peak on 1 waters |
River hatch charts
Per-river charts with fly patterns for each hatch, on all 329 river guides.
Stillwater hatch charts
Chironomid, Callibaetis, damsel and leech timing on all 31 lake guides.