Delaware River
River in Delaware, read from its USGS gauge, draining about 11,030 square miles. Figures refresh every fifteen minutes.
Discharge
no flow
· 24 min ago
Normal for today
—
no long-term record
Water temp
67
°F · 21 min ago
Gage height
—
not measured here
Regional hatch calendar
What is likely hatching near Delaware River
Delaware River does not have its own verified chart yet. This calendar is combined from the verified charts on Tulpehocken Creek (54 mi), Little Lehigh Creek (62 mi), Lehigh River (79 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: absent | February: absent | March: active | April: peak | May: active | June: active | July: active | August: active | September: active | October: peak | November: active | December: absent |
| Caddis | January: absent | February: absent | March: absent | April: peak | May: peak | June: peak | July: active | August: active | September: active | October: active | November: absent | December: absent |
| Light Cahill | January: absent | February: absent | March: absent | April: absent | May: peak | June: peak | July: absent | 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 |
| Sulphur | January: absent | February: absent | March: absent | April: active | May: peak | June: peak | July: absent | August: absent | September: active | October: active | November: absent | December: absent |
| Trico | January: absent | February: absent | March: absent | April: absent | May: absent | June: absent | July: peak | August: peak | September: active | October: absent | November: absent | December: absent |
| Hendrickson | January: absent | February: absent | March: absent | April: peak | May: active | June: absent | July: absent | August: absent | September: absent | October: absent | November: absent | December: absent |
| Midge | January: peak | February: peak | March: active | April: active | May: active | June: active | July: active | August: active | September: active | October: active | November: peak | December: peak |
| Terrestrials | January: absent | February: absent | March: absent | April: absent | May: absent | June: active | July: active | August: peak | September: active | October: active | November: absent | December: absent |
| Green Drake | January: absent | February: absent | March: absent | April: absent | May: peak | June: active | July: absent | August: absent | September: absent | October: absent | November: absent | December: absent |
| Isonychia | January: absent | February: absent | March: absent | April: absent | May: absent | June: active | July: active | August: active | September: peak | October: active | November: absent | December: absent |
| March Brown | January: absent | February: absent | March: absent | April: absent | May: peak | June: active | July: absent | August: absent | September: absent | October: absent | November: absent | December: absent |
PeakActiveAbsent
Reports
From anglers on Delaware 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.