St. Clair River
River in Michigan, read from its USGS gauge, draining about 222,400 square miles. Figures refresh every fifteen minutes.
Discharge
198,000
cfs · 51 min ago
Normal for today
211,000
cfs median, 18 yrs
Water temp
—
not measured here
Gage height
578.15
ft
Reading the number
On this date the gauge has averaged 211,000 cfs over 18 years of record, with the middle half of years falling between 189,000 and 215,000 cfs. Today sits inside that band, which is as close to a normal October day as the gauge can tell you.
Regional hatch calendar
What is likely hatching near St. Clair River
St. Clair River does not have its own verified chart yet. This calendar is combined from the verified charts on Huron River (82 mi), Grand River (107 mi), Au Sable River (144 mi). Treat it as regional timing, and file a report if you see something different here.
| Insect | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Caddis | January: absent | February: absent | March: absent | April: active | May: peak | June: peak | July: peak | August: active | September: active | October: absent | November: absent | December: absent |
| Hendrickson | January: absent | February: absent | March: absent | April: peak | May: peak | June: absent | July: absent | August: absent | September: absent | October: absent | November: absent | December: absent |
| Hex | January: absent | February: absent | March: absent | April: absent | May: absent | June: peak | July: peak | August: absent | September: absent | October: absent | November: absent | December: absent |
| Isonychia | January: absent | February: absent | March: absent | April: absent | May: absent | June: peak | July: active | August: active | September: active | October: absent | November: absent | December: absent |
| Little Black Stonefly | January: active | February: active | March: peak | April: peak | May: active | June: absent | July: absent | August: absent | September: absent | October: absent | November: absent | December: absent |
| Sulphur | January: absent | February: absent | March: absent | April: absent | May: peak | June: peak | July: active | August: absent | September: absent | October: absent | November: absent | December: absent |
| Trico | January: absent | February: absent | March: absent | April: absent | May: absent | June: active | July: peak | August: peak | September: active | October: absent | November: absent | December: absent |
| White Fly | January: absent | February: absent | March: absent | April: absent | May: absent | June: absent | July: active | August: peak | September: active | October: absent | November: absent | December: absent |
| Blue-Winged Olive | January: absent | February: absent | March: absent | April: peak | May: active | June: active | July: active | August: active | September: active | October: peak | November: absent | December: absent |
| Brown Drake | January: absent | February: absent | March: absent | April: absent | May: active | June: peak | July: absent | August: absent | September: absent | October: absent | November: absent | December: absent |
| Egg Patterns | January: active | February: active | March: peak | April: peak | May: absent | June: absent | July: absent | August: absent | September: absent | October: peak | November: peak | December: peak |
| Lake-Run Smallmouth | January: absent | February: absent | March: absent | April: peak | May: peak | June: active | July: active | August: active | September: absent | October: absent | November: absent | December: absent |
Reports
From anglers on St. Clair River
No reports filed here yet. The first one becomes the page’s local knowledge, stamped with the flow at the time. File a report.