Total streamflow across the
Mongaup River
was last observed at
206
cfs, and is expected to yield approximately
409
acre-ft of water today; about 36%
of normal.
River levels are low and may signify a drought.
Average streamflow for this time of year is
573 cfs,
with recent peaks last observed
on
2021-10-28 when daily discharge volume was observed at
4,956 cfs.
Maximum discharge along the river is currently at the
Mongaup River At Mongaup Valley Ny
reporting a streamflow rate of 206 cfs.
This is also the highest stage along the Mongaup River, with a gauge stage of
3.7 ft at this location.
This river is monitored from 2 different streamgauging stations along the Mongaup River, the highest being situated at an altitude of 1,069 ft, the
Mongaup River At Mongaup Valley Ny.
The Mongaup River is a 20-mile-long river located in Sullivan and Orange Counties in New York.
| Last Updated | 2026-05-11 |
| Discharge Volume | 409 ACRE-FT |
| Streamflow |
206.0 cfs
Past 24 Hours: -118.0 cfs (-36.42%) |
| Percent of Normal | 35.96% |
| Maximum |
4,956.0 cfs
2021-10-28 |
| Seasonal Avg | 573 cfs |
| Streamgauge | Streamflow | Gauge Stage | 24hr Change (%) | % Normal | Minimum (cfs) | Maximum (cfs) | Air Temp | Elevation |
|---|---|---|---|---|---|---|---|---|
|
Mongaup River At Mongaup Valley Ny
USGS 01432900 |
206 cfs | 3.7 ft | -36.42 | |||||
|
Mongaup River Near Mongaup Ny
USGS 01433500 |
188 cfs | 1.83 ft | -2.08 |
Mongaup River is a stream in the U.S. state of New York. It is a tributary to the Delaware River.
Mongaup is a name derived from an Indian language meaning perhaps "dancing feather" or "huckeberry valley". Variant spellings have been "Mangawping River", "Mingwing River", "Mon-gaw-ping River" and "Mongaap River".