Summary
Total streamflow across the
Susquehanna River
was last observed at
79,530
cfs, and is expected to yield approximately
157,746
acre-ft of water today; about 26%
of normal.
River levels are low and may signify a drought.
Average streamflow for this time of year is
309,174 cfs,
with recent peaks last observed
on
2011-09-09 when daily discharge volume was observed at
3,832,200 cfs.
Maximum discharge along the river is currently at the
Susquehanna River At Sunbury
reporting a streamflow rate of 24,400 cfs.
However, the streamgauge with the highest stage along the river is the
Susquehanna River At Marietta
with a gauge stage of 35.07 ft.
This river is monitored from 16 different streamgauging stations along the Susquehanna River, the highest being situated at an altitude of 979 ft, the
Susquehanna River At Unadilla Ny.
River Details
| Last Updated | 2025-12-20 |
| Discharge Volume | 157,746 ACRE-FT |
| Streamflow |
79,530.0 cfs
+44655.0 cfs (+128.04%) |
| Percent of Normal | 25.72% |
| Maximum |
3,832,200.0 cfs
2011-09-09 |
| Seasonal Avg | 309,174 cfs |
River Streamflow Levels
| Streamgauge | Streamflow | Gauge Stage | 24hr Change (%) | % Normal | Minimum (cfs) | Maximum (cfs) | Air Temp | Elevation |
|---|---|---|---|---|---|---|---|---|
|
Susquehanna River At Unadilla Ny
USGS 01500500 |
3360 cfs | 5.78 ft | 507.09 | |||||
|
Susquehanna River At Bainbridge Ny
USGS 01502632 |
6470 cfs | 7.42 ft | 288.24 | |||||
|
Susquehanna River At Windsor Ny
USGS 01502731 |
6330 cfs | 8.52 ft | 390.7 | |||||
|
Susquehanna River At Conklin Ny
USGS 01503000 |
2410 cfs | 7.26 ft | 14.76 | |||||
|
Susquehanna River At Vestal Ny
USGS 01513500 |
3460 cfs | 11.44 ft | -5.21 | |||||
|
Susquehanna River At Owego Ny
USGS 01513831 |
3240 cfs | 19 ft | -6.9 | |||||
|
Susquehanna River Near Waverly Ny
USGS 01515000 |
3990 cfs | 6.83 ft | 1.27 | |||||
|
Susquehanna River At Towanda
USGS 01531500 |
22300 cfs | 4.92 ft | 40.85 | |||||
|
Susquehanna River At Meshoppen
USGS 01533400 |
23800 cfs | 14.61 ft | 85 | |||||
|
Susquehanna River At Wilkes-Barre
USGS 01536500 |
10700 cfs | 6.56 ft | 9.3 | |||||
|
Susquehanna River At Bloomsburg
USGS 01538700 |
4080 cfs | 4.24 ft | -1.69 | |||||
|
Susquehanna River At Danville
USGS 01540500 |
4750 cfs | 5.43 ft | 6.74 | |||||
|
Susquehanna River At Sunbury
USGS 01554000 |
24400 cfs | 9.53 ft | 31.89 | |||||
|
Susquehanna River At Harrisburg
USGS 01570500 |
22800 cfs | 4.39 ft | 207.5 | |||||
|
Susquehanna River At Marietta
USGS 01576000 |
17900 cfs | 35.07 ft | 57.41 | |||||
|
Susquehanna River At Conowingo
USGS 01578310 |
5900 cfs | 9.49 ft | 16.12 |
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile
The Susquehanna River (; Lenape: Siskëwahane) is a major river located in the northeastern and mid-Atlantic United States. At 444 miles (715 km) long, it is the longest river on the East Coast of the United States that drains into the Atlantic Ocean. With its watershed, it is the 16th-largest river in the United States, and the longest river in the early 21st-century continental United States without commercial boat traffic.
The Susquehanna River forms from two main branches: the "North Branch", which rises in Cooperstown, New York, and is regarded by federal mapmakers as the main branch or headwaters, and the West Branch, which rises in western Pennsylvania and joins the main branch near Northumberland in central Pennsylvania.
The river drains 27,500 square miles (71,000 km2), including nearly half of the land area of Pennsylvania. The drainage basin (watershed) includes portions of the Allegheny Plateau region of the Appalachian Mountains, cutting through a succession of water gaps in a broad zigzag course to flow across the rural heartland of southeastern Pennsylvania and northeastern Maryland in the lateral near-parallel array of mountain ridges. The river empties into the northern end of the Chesapeake Bay at Perryville and Havre de Grace, Maryland, providing half of the Bay's freshwater inflow. The Chesapeake Bay is the ria of the Susquehanna.