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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) | 1989-10-01 | 2025-12-14 | |
| Daily Data | |||
| Temperature, water, degrees Celsius -- sediment station | 1978-03-22 | 2004-08-31 | 1369 |
| Discharge, cubic feet per second | 1913-09-01 | 2025-12-13 | 41012 |
| Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius -- sediment station | 1978-03-22 | 1981-09-29 | 605 |
| Suspended sediment concentration, milligrams per liter -- sediment station | 1978-03-25 | 2004-09-29 | 4103 |
| Suspended sediment discharge, short tons per day -- sediment station | 1978-03-25 | 2004-09-29 | 4103 |
| Specific conductance, water, unfiltered, laboratory, microsiemens per centimeter at 25 degrees Celsius -- sediment station | 1981-10-07 | 2004-08-31 | 957 |
| Daily Statistics | |||
| Discharge, cubic feet per second | 1913-09-01 | 2025-09-03 | 40911 |
| Suspended sediment concentration, milligrams per liter -- sediment station | 1978-03-25 | 2004-09-29 | 4103 |
| Suspended sediment discharge, short tons per day -- sediment station | 1978-03-25 | 2004-09-29 | 4103 |
| Monthly Statistics | |||
| Discharge, cubic feet per second | 1913-09 | 2025-09 | |
| Suspended sediment concentration, milligrams per liter -- sediment station | 1978-03 | 2004-09 | |
| Suspended sediment discharge, short tons per day -- sediment station | 1978-03 | 2004-09 | |
| Annual Statistics | |||
| Discharge, cubic feet per second | 1913 | 2025 | |
| Suspended sediment concentration, milligrams per liter -- sediment station | 1978 | 2004 | |
| Suspended sediment discharge, short tons per day -- sediment station | 1978 | 2004 | |
| Peak streamflow | 1903 | 2024-05-27 | 112 |
| Field measurements | 1913-08-21 | 2025-09-04 | 1144 |
| Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP) | 1944-06-27 | 2019-11-12 | 238 |
| Water-Year Summary | 2006 | 2024 | 19 |
| Revisions | Loading... | ||