Wyoming Snowpack & River Runoff
Snow-water equivalent by basin and the seasonal runoff outlook for Wyoming's rivers, translated into what it means for fishing — early or late runoff, high or low summer flows, and which waters hold up best. Updated daily through the snow season.
Wyoming's snowpack came up short of average this year — at 72% of normal statewide, expect runoff to peak earlier than the long-term average and summer flows to thin by late July. Plan to fish higher and earlier than usual, or shift to dam-regulated water once the freestones drop.
Tailwaters become the safer bet by August. Smaller freestones can still fish well in June, but be ready to move higher or earlier in the day as flows drop and temperatures climb.
| River | Region | Basin snowpack | SWE now / normal | Median melt-out | Runoff forecast |
|---|---|---|---|---|---|
| Snake River | Jackson Hole | 72% | 9.8" / 13.7" | ~Jun 28 | 77% |