USGS Streamgage 06609500
Boyer River at Logan, IA
Boyer River at Logan, IA is USGS streamgage 06609500, monitoring river discharge in hydrologic subbasin 10230007. It drains a watershed of about 871 square miles. Discharge records at this site go back to 1881. Typical flow runs near 315.8 cfs in July and 278 cfs in April, with the higher of the two arriving in July.
Gauge details
- Drainage area
- 871 sq mi
- Gauge elevation
- 1,024 ft
- Subbasin (HUC-8)
- 10230007
- Coordinates
- 41.64169, -95.78233
- USGS site number
- 06609500
- Records begin
- 1881-05-01 (145 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 108 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.
| Month | Low p10 | Typical p50 | High p90 | Range |
|---|---|---|---|---|
| January | 18 | 97.3 | 411.4 | |
| February | 30.8 | 173 | 784.7 | |
| March | 82.5 | 324 | 1,300.6 | |
| April | 72.6 | 278 | 990.7 | |
| May | 70.2 | 356.3 | 1,325.8 | |
| June | 81.4 | 466.8 | 1,819 | |
| July | 64.4 | 315.8 | 1,040 | |
| August | 41.5 | 199.9 | 795.4 | |
| September | 30.9 | 140.7 | 676.2 | |
| October | 30.5 | 128.8 | 666.5 | |
| November | 40.8 | 141.6 | 517.4 | |
| December | 30.5 | 117 | 435.3 |
All values in cubic feet per second (cfs).