Shane Cowan Guide Service
Shane Cowan Guide Service is a fishing guide service based in Pierre, South Dakota.
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Around Shane Cowan Guide Service
Data Source: Recreation.gov · Public land: USGS PAD-US
Typical flow by month
1929 to 2026
The water at Shane Cowan Guide Service typically runs highest in March, at a median 54 cfs, and lowest in January, at 0.0 cfs. The highest flow on record for any single day is 27,200 cfs, in 1942.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 0.0 | 0.0 to 0.8 |
| February | 1.0 | 0.0 to 19 |
| March | 54 | 4.3 to 271 |
| April | 39 | 3.7 to 222 |
| May | 30 | 2.7 to 155 |
| June | 39 | 3.8 to 196 |
| July | 6.1 | 0.1 to 39 |
| August | 0.5 | 0.0 to 9.6 |
| September | 0.0 | 0.0 to 1.8 |
| October | 0.0 | 0.0 to 1.2 |
| November | 0.0 | 0.0 to 1.4 |
| December | 0.0 | 0.0 to 1.3 |
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 97 years of record. Statistics published by the US Geological Survey for Bad River near Fort Pierre, SD (site 06441500). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Current conditions
Today · Fri
85Go/ 100
FogHigh 43°F, low 31°FRain 0%Wind 8 kt, gusts 16
Streamflow
13 cfs
Much above normal (91st)
Water level
1.27 ft
Air quality
13 Good
Pierre monitor, 19 km
National Weather ServiceBelow flood stage
Flood stage 21 ft. NWS reads 1.22 ft here.
NWS issues forecasts here only during high water.
Forecast from Open-Meteo global models (NOAA & ECMWF). Flood stages and forecasts: NOAA National Weather Service. Air quality: South Dakota Department of Agriculture and Natural Resources via EPA AirNow. Preliminary data, not verified. See full conditions →
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