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Boating safety tips are available from the U.S. Coast Guard.
NOTE: Station Numbers for Iowa precipitation gages have changed (see list).
| Data Type | Begin Date | End Date | Count |
|---|---|---|---|
| Current / Historical Observations (availability statement) | 1990-10-01 | 2025-12-14 | |
| Daily Data | |||
| Temperature, water, degrees Celsius -- sediment station | 1968-10-08 | 1973-09-29 | 1753 |
| Discharge, cubic feet per second | 1934-12-08 | 2025-12-13 | 33242 |
| Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius -- sediment station | 1968-10-08 | 1973-09-29 | 1756 |
| Suspended sediment concentration, milligrams per liter -- sediment station | 1968-10-01 | 1973-09-29 | 1825 |
| Suspended sediment discharge, short tons per day -- sediment station | 1954-03-16 | 1973-09-29 | 2967 |
| Daily Statistics | |||
| Discharge, cubic feet per second | 1934-12-08 | 2025-08-24 | 33133 |
| Suspended sediment concentration, milligrams per liter -- sediment station | 1968-10-01 | 1973-09-29 | 1825 |
| Suspended sediment discharge, short tons per day -- sediment station | 1954-03-16 | 1973-09-29 | 2967 |
| Monthly Statistics | |||
| Discharge, cubic feet per second | 1934-12 | 2025-08 | |
| Suspended sediment concentration, milligrams per liter -- sediment station | 1968-10 | 1973-09 | |
| Suspended sediment discharge, short tons per day -- sediment station | 1954-03 | 1973-09 | |
| Annual Statistics | |||
| Discharge, cubic feet per second | 1935 | 2025 | |
| Suspended sediment concentration, milligrams per liter -- sediment station | 1969 | 1973 | |
| Suspended sediment discharge, short tons per day -- sediment station | 1954 | 1973 | |
| Peak streamflow | 1935-06-28 | 2024-06-23 | 90 |
| Field measurements | 1934-12-08 | 2025-12-01 | 1225 |
| Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP) | 1945-09-26 | 2012-08-15 | 415 |
| Water-Year Summary | 2006 | 2024 | 19 |
| Revisions | Loading... | ||