Oswego River River Levels

Last Updated: January 31, 2026

The Oswego River is a 23-mile-long river located in upstate New York that flows into Lake Ontario.



15-Day Weather Outlook


Summary

Total streamflow across the Oswego River was last observed at 7,950 cfs, and is expected to yield approximately 15,769 acre-ft of water today; about 83% of normal. Average streamflow for this time of year is 9,601 cfs, with recent peaks last observed on 2011-05-01 when daily discharge volume was observed at 27,000 cfs.

Maximum discharge along the river is currently at the Oswego River At Lock 7 reporting a streamflow rate of 7,950 cfs. However, the streamgauge with the highest stage along the river is the Oswego River At Harrisville Nj with a gauge stage of 10.32 ft. This river is monitored from 2 different streamgauging stations along the Oswego River, the highest being situated at an altitude of 254 ft, the Oswego River At Lock 7.

River Details

Last Updated 2026-01-31
Discharge Volume 15,769 ACRE-FT
Streamflow 7,950.0 cfs
-1440.0 cfs (-15.34%)
Percent of Normal 82.81%
Maximum 27,000.0 cfs
2011-05-01
Seasonal Avg 9,601 cfs
       
River Streamflow Levels
Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Oswego River At Lock 7
USGS 04249000
7950 cfs 5.51 ft -15.34
Oswego River At Harrisville Nj
USGS 01410000
47 cfs 10.32 ft -5.39
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile

The Oswego River is a 23.7-mile-long (38.1 km) tributary of the Wading River in the southern New Jersey Pine Barrens in the United States.