Mongaup River

River in New York, read from 3 USGS gauges, draining about 200 square miles. Figures refresh every fifteen minutes.

Discharge

177

cfs · 1h ago

Normal for today

144

cfs median, 69 yrs

Water temp

°F · 1h ago

Gage height

1.77

Normal for the date123% of medianUSGS gauge 01433500

Thirty-day mean discharge · 170–255 cfsdashed line: today’s long-term median

Gauges on this water

Reading by reach

Station	Flow	Temp	Updated
MONGAUP RIVER NEAR MONGAUP NY01433500	177 cfs	62°F	1h ago
MONGAUP R BELOW SWINGING BRIDGE RESERVOIR NY01433005	124 cfs	61°F	1h ago
MONGAUP RIVER AT MONGAUP VALLEY NY01432900	43.7 cfs	—	54 min ago

Reading the number

On this date the gauge has averaged 144 cfs over 69 years of record, with the middle half of years falling between 56.0 and 322 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 Mongaup River

Mongaup River does not have its own verified chart yet. This calendar is combined from the verified charts on Neversink River (9 mi), Delaware River (16 mi), Beaver Kill (22 mi). Treat it as regional timing, and file a report if you see something different here.

Month-by-month insect activity for Mongaup River
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: peak	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
Isonychia	January: absent	February: absent	March: absent	April: absent	May: absent	June: peak	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
Quill Gordon	January: absent	February: absent	March: absent	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: active	May: peak	June: peak	July: active	August: active	September: absent	October: absent	November: absent	December: absent
Caddis	January: absent	February: absent	March: absent	April: active	May: active	June: peak	July: peak	August: peak	September: peak	October: active	November: absent	December: absent
Green 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
Trico	January: absent	February: absent	March: absent	April: absent	May: absent	June: active	July: peak	August: peak	September: active	October: active	November: absent	December: absent
Grannom	January: absent	February: absent	March: absent	April: active	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: absent	June: peak	July: peak	August: active	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: peak	October: active	November: absent	December: absent

PeakActiveAbsent

Reports

From anglers on Mongaup 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.