Raritan River
River in New Jersey, read from 2 USGS gauges, draining about 785 square miles. Figures refresh every fifteen minutes.
Discharge
228
cfs · 28 min ago
Normal for today
275
cfs median, 88 yrs
Water temp
62
°F · 28 min ago
Gage height
16.86
ft
Gauges on this water
Reading by reach
Reading the number
On this date the gauge has averaged 275 cfs over 88 years of record, with the middle half of years falling between 170 and 488 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 Raritan River
Raritan River does not have its own verified chart yet. This calendar is combined from the verified charts on Little Lehigh Creek (47 mi), Brodhead Creek (49 mi), Lehigh River (62 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: peak | 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 |
| 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 |
| Light Cahill | January: absent | February: absent | March: absent | April: absent | May: peak | June: peak | July: active | August: absent | September: absent | October: absent | November: absent | December: absent |
| Little Black Stonefly | January: active | February: peak | March: peak | April: peak | May: absent | 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: absent | August: absent | September: active | 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 |
| 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 |
| 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 |
| 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 |
| 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 |
Reports
From anglers on Raritan 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.