Colter Bay Marina & Boat Launch
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Boat launches near Colter Bay Marina & Boat Launch
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Typical flow by month
1904 to 2026
The water at Colter Bay Marina & Boat Launch typically runs highest in June, at a median 3,225 cfs, and lowest in November, at 281 cfs. The highest flow on record for any single day is 14,700 cfs, in 1918.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 314 | 32 to 481 | |
| February | 324 | 28 to 504 | |
| March | 343 | 33 to 503 | |
| April | 369 | 62 to 644 | |
| May | 500 | 82 to 2,640 | |
| June | 3,225 | 1,620 to 4,785 | |
| July | 3,110 | 2,330 to 4,830 | |
| August | 2,830 | 2,020 to 4,300 | |
| September | 1,955 | 1,075 to 2,720 | |
| October | 288 | 32 to 492 | |
| November | 281 | 30 to 440 | |
| December | 291 | 29 to 453 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 122 years of record. Statistics published by the US Geological Survey for Snake River near Moran, WY (site 13011000). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Current conditions
Streamflow
1,860 cfs
Normal (54th)
Water level
4.76 ft
Water
57°F
High today
63°F
Wind
14 kt
Gusts 29 kt
Rain chance
28%
Week ahead
Forecast from Open-Meteo global models (NOAA & ECMWF). See full conditions →
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