North Umpqua River · hatch chart
Summer steelhead from July, with the fly-only water fishable until the end of October
By month
JanFebMarAprMayJunJulAugSepOctNovDec
| Month | Insect | Stage | Size | Time | Intensity |
|---|---|---|---|---|---|
| May | Caddis (Rhyacophila) | Larva and pupa | #12-14 | All day | |
| Jun | Golden Stone (Hesperoperla) | Adult | #8-10 | 10:00-17:00 | |
| Jul | Little Yellow Stone (Isoperla) | Adult | #14-16 | 11:00-18:00 | |
| Aug | Caddis (Hydropsyche) | Adult, evening | #14-16 | 19:00-22:00 | |
| Sep | October Caddis (Dicosmoecus) | Adult, evening | #8-10 | 18:30-21:30 | |
| Oct | Blue-Winged Olive (Baetis) | Dun | #18 | 13:00-16:00 |
Flow and visibility
Summer flows drop low and clear, which is exactly when the steelhead come in and exactly when they are most spooky. A bump of turbidity after a rain is worth fishing hard, because it lets you fish a shorter line and get closer. Winter flows push past 5,000 cfs and the fly-only reach becomes a different, much more dangerous river.