Cosumnes River
River in California, read from its USGS gauge, draining about 536 square miles. Figures refresh every fifteen minutes.
Discharge
39.6
cfs · 32 min ago
Normal for today
15.0
cfs median, 119 yrs
Water temp
53
°F · 3872d ago
Gage height
2.72
ft
Reading the number
On this date the gauge has averaged 15.0 cfs over 119 years of record, with the middle half of years falling between 7.5 and 28.0 cfs. Today is above that band, so expect more push and colour than a typical October day here.
Regional hatch calendar
What is likely hatching near Cosumnes River
Cosumnes River does not have its own verified chart yet. This calendar is combined from the verified charts on Yuba River (53 mi), Carson River (76 mi), Truckee River (84 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Blue-Winged Olive | January: active | February: active | March: peak | April: peak | May: active | June: absent | July: absent | August: absent | September: active | October: peak | November: peak | December: active |
| Caddis | January: absent | February: absent | March: active | April: peak | May: peak | June: peak | July: peak | August: peak | September: peak | October: active | November: absent | December: absent |
| Golden Stonefly | January: absent | February: absent | March: absent | April: absent | May: active | June: peak | July: peak | August: active | September: absent | October: absent | November: absent | December: absent |
| Midge | January: peak | February: peak | March: peak | April: peak | May: active | June: active | July: active | August: active | September: active | October: peak | November: peak | December: peak |
| Pale Morning Dun | January: absent | February: absent | March: active | April: active | May: peak | June: peak | July: peak | August: peak | September: active | October: active | November: active | December: active |
| Green Drake | January: absent | February: absent | March: absent | April: absent | May: active | June: peak | July: active | August: absent | September: absent | October: absent | November: absent | December: absent |
| Little Black Stonefly | January: active | February: peak | March: peak | April: active | May: absent | June: absent | July: absent | August: absent | September: absent | October: absent | November: absent | December: absent |
| March Brown | January: absent | February: active | March: peak | April: peak | May: absent | June: absent | July: absent | August: absent | September: absent | October: absent | November: absent | December: absent |
| Skwala | January: absent | February: absent | March: active | April: peak | May: active | June: absent | July: absent | August: absent | September: absent | October: absent | November: absent | December: absent |
| Terrestrials | January: absent | February: absent | March: absent | April: absent | May: absent | June: active | July: peak | August: peak | September: active | October: absent | November: absent | December: absent |
Reports
From anglers on Cosumnes 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.