Susquehanna River Flow
As of 2026-07-27, the Susquehanna River is flowing at a combined 50,072 cfs across 16 USGS streamgauges — 25% of normal for this time of year, versus a seasonal average of 201,104 cfs.
Total streamflow across the Susquehanna River was last observed at 50,072 cfs, and is expected to yield approximately 99,317 acre-ft of water today; about 25% of normal. River levels are low and may signify a drought. Average streamflow for this time of year is 201,104 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 Marietta reporting a streamflow rate of 10,600 cfs. This is also the highest stage along the Susquehanna River, with a gauge stage of 33.9 ft at this location. 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 streamflow levels
Daily aggregate streamflow across every monitored gauge along the Susquehanna River. Use the range buttons to zoom in on a specific period.
Total streamflow
Sum of all monitored streamgauges · daily
Every streamgauge along the Susquehanna River
All 16 USGS gauges Snoflo tracks for this river, with current flow, stage, recent change, percent of normal, and the gauge's all-time min / max. Click any header to sort. Cells are heatmapped relative to the column min/max -- darker blue = higher.
| Streamgauge▾ | Streamflow (cfs)▾ | Gauge stage (ft)▾ | 24h Δ (%)▾ | % Normal▾ | Min (cfs)▾ | Max (cfs)▾ | Elevation (ft)▾ |
|---|---|---|---|---|---|---|---|
|
Susquehanna River At Unadilla Ny
NY
USGS 01500500
|
281 | 2.61 | 4.5 | 64% | 92 | 16,400 | 979 |
|
Susquehanna River At Bainbridge Ny
NY
USGS 01502632
|
506 | 1.34 | 7.4 | 61% | 181 | 51,500 | 960 |
|
Susquehanna River At Windsor Ny
NY
USGS 01502731
|
576 | 2.89 | -3.2 | 60% | 266 | 54,900 | 904 |
|
Susquehanna River At Conklin Ny
NY
USGS 01503000
|
659 | 2.44 | -7.1 | 57% | 266 | 66,800 | 839 |
|
Susquehanna River At Vestal Ny
NY
USGS 01513500
|
1,110 | 2.49 | -7.5 | 60% | 513 | 124,000 | 804 |
|
Susquehanna River At Owego Ny
NY
USGS 01513831
|
1,300 | 13.66 | -8.5 | 63% | 479 | 85,500 | 772 |
|
Susquehanna River Near Waverly Ny
PA
USGS 01515000
|
1,250 | 1.29 | -10.1 | 50% | 511 | 116,000 | 741 |
|
Susquehanna River At Towanda
PA
USGS 01531500
|
1,500 | 0.34 | -9.1 | 46% | 746 | 213,000 | 686 |
|
Susquehanna River At Meshoppen
PA
USGS 01533400
|
1,950 | 7.90 | -2.0 | 58% | 869 | 275,000 | 610 |
|
Susquehanna River At Wilkes-Barre
PA
USGS 01536500
|
2,730 | 0.60 | -8.7 | 68% | 1,190 | 302,000 | 522 |
|
Susquehanna River At Bloomsburg
PA
USGS 01538700
|
3,330 | 1.26 | -11.4 | 50% | 1,180 | 173,000 | 458 |
|
Susquehanna River At Danville
PA
USGS 01540500
|
3,070 | 2.77 | -12.0 | 57% | 1,210 | 287,000 | 436 |
|
Susquehanna River At Sunbury
PA
USGS 01554000
|
6,390 | 6.77 | -13.7 | 77% | 2,170 | 458,000 | 421 |
|
Susquehanna River At Harrisburg
PA
USGS 01570500
|
8,880 | 3.49 | -12.1 | 74% | 3,270 | 589,000 | 294 |
|
Susquehanna River At Marietta
PA
USGS 01576000
|
10,600 | 33.90 | -7.8 | 78% | 3,560 | 658,000 | 237 |
|
Susquehanna River At Conowingo
MD
USGS 01578310
|
5,940 | 9.50 | 0.0 | 97% | 706 | 757,000 | 21 |
Maximum streamflow discharge by year
The single highest aggregate discharge recorded each year. Spotting the multi-year trend reveals droughts vs. wet cycles long before the headline daily flow does.
Annual peak discharge
From the river's full record · one point per water year
Streamflow elevation profile
Each bubble is one gauge along the river, plotted by current streamflow (x-axis) vs elevation (y-axis), sized by gauge stage. Reading top-to-bottom traces the river from headwaters down to its mouth -- you can see flow accumulate as elevation drops.
Elevation vs streamflow
One point per monitored gauge · bubble size = gauge stage
Susquehanna River
The Susquehanna River, located in the northeastern United States, stretches for 444 miles from its source in upstate New York to the Chesapeake Bay. It has played a significant role in the history of the region, serving as a transportation route for Native Americans and early settlers. The river's hydrology is characterized by high flow variability, with floods and droughts being common. The river is home to several reservoirs and dams, including the Conowingo Dam and the Safe Harbor Dam, both of which generate hydroelectric power. Recreational activities such as fishing, boating, and camping are popular along the river, and it also supports agriculture by providing irrigation for crops. However, pollution from agricultural runoff and other sources has impacted the river's water quality and ecosystem.
Recreation along the Susquehanna River
Fishing access and paddle runs Snoflo tracks within the watershed.
Track the Susquehanna River in the Snoflo app
Set per-gauge push alerts (e.g. "alert me when flow at the Russian R Nr Healdsburg crosses 5,000 cfs"), and Snoflo's iOS app pushes the moment USGS reports the crossing.
About the Susquehanna River
How is the Susquehanna River flowing right now?
As of 2026-07-27, the Susquehanna River is flowing at a combined 50,072 cfs across its USGS streamgauges, about 25% of normal for this date. The live per-gauge breakdown and 24-hour trend are shown above.
Is the Susquehanna River running high or low right now?
Check the percent-of-normal figure on this page: above 100% means the river is running higher than its seasonal average for the date, below 100% means lower. The per-gauge table shows which reaches are highest and lowest.
Where does the data for the Susquehanna River come from?
Streamflow and gauge stage data are sourced from the U.S. Geological Survey (USGS) National Water Information System. The aggregate flow shown at the top of the page is computed by Snoflo as the sum of all monitored gauges along the river.
How is "percent of normal" calculated?
Today's aggregate streamflow is compared to the historical average aggregate streamflow on this calendar day across the river's full record. 100% means right on average; values above 100% indicate above-normal flow (wet year); values below indicate below-normal (dry year or drought).
Why are some gauges showing very different flows?
Gauges along a river measure flow at different points: headwater gauges read what's coming off the snowpack or mountain runoff; downstream gauges integrate everything upstream, including tributary inputs. Wide spreads usually mean a tributary is contributing significantly between gauges.
What's the elevation profile chart showing?
Each bubble is one gauge along the river, plotted by streamflow (x-axis) and elevation (y-axis), sized by gauge stage. Reading top-down traces the river from headwaters to mouth -- you can see flow build as elevation drops.
Can I get alerts when a specific gauge crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app on a per-gauge basis. Open any individual streamgauge from the table above and favorite it to set a discharge threshold.