How high is the Susquehanna River at Sunbury, PA right now?

The Susquehanna River at Sunbury, PA is currently flowing at 34,600 cubic feet per second with a gage height of 10.54 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Susquehanna River at Sunbury, PA normal for this time of year?

Current flow is classified as high for June 11. Today's discharge is at the 87th percentile compared to the long-term historical record at this gauge.

Is the Susquehanna River at Sunbury, PA at flood stage?

No — the gage height is 13.46 feet below the NWS flood-stage threshold of 24.0 feet.

What is the historical median flow for the Susquehanna River at Sunbury, PA on June 11?

The long-term median discharge for this date is 15,900 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 7,790 to 42,800 cfs.

Where is the Susquehanna River at Sunbury, PA stream gauge located?

The Susquehanna River at Sunbury, PA stream gauge is operated by the USGS in Snyder County, PA on the Susquehanna River. USGS site number 01554000 (coordinates 40.8345, -76.8266).

Susquehanna River at Sunbury, PA

USGS Site No: 01554000 • Susquehanna River • Snyder County, PA

Susquehanna River at Sunbury, PA on the Susquehanna River is currently at 34,600 cfs (High — 87th percentile for this date) . Gage height: 10.54 ft.

Reading from 1 week ago

↑ Upstream on Susquehanna River

Susquehanna River at Danville, PA

Downstream on Susquehanna River ↓

Susquehanna River at Harrisburg, PA

34,600

CFS Discharge

10.54

Gage Height (ft)

High

Flow Condition

Normal

Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for June 11 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.

Percentile	Label	CFS Threshold	Today's Flow
10th	Very Low threshold	7,790
25th	Low threshold	10,000
50th (Median)	Normal (median)	15,900
75th	High threshold	22,300
95th	Very High threshold	42,800	Today: 34,600 cfs

30-Day Hydrograph

Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.

10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date	Discharge (CFS)	Gage Ht (ft)
May 28, 2026	47,600	11.75
May 27, 2026	56,500	12.53
May 26, 2026	44,700	11.48
May 25, 2026	30,900	10.19
May 24, 2026	25,800	9.67
May 23, 2026	18,700	8.86
May 22, 2026	18,700	8.86
May 21, 2026	21,200	9.16
May 20, 2026	22,100	9.27
May 19, 2026	24,800	9.57
May 18, 2026	27,500	9.85
May 17, 2026	31,200	10.22
May 16, 2026	32,800	10.38
May 15, 2026	34,200	10.51
Apr 21, 2026	59,000	12.73
Apr 20, 2026	44,600	11.49
Apr 19, 2026	39,300	10.99
Apr 18, 2026	39,200	10.98
Apr 17, 2026	34,200	10.51
Apr 16, 2026	31,700	10.27
Apr 15, 2026	32,400	10.34
Apr 14, 2026	35,000	10.58
Apr 13, 2026	38,900	10.95
Apr 12, 2026	43,500	11.38
Apr 11, 2026	48,600	11.85
Apr 10, 2026	55,600	12.45
Apr 9, 2026	66,100	13.29
Apr 8, 2026	79,100	14.27
Apr 7, 2026	94,800	15.35
Apr 6, 2026	94,700	15.35

Station Information

USGS Site No: 01554000
State: PA
County: Snyder County
Coordinates: 40.8345, -76.8266
Drainage Area: 18,300 mi²
Datum (ft): 407.9
HUC Code: 02050301

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 20.0 ft
Flood Stage: 24.0 ft
Moderate Flood: 26.0 ft
Major Flood: 34.0 ft

Currently 13.46 ft below flood stage.

Recent Extremes

Max discharge: 145,000 cfs

May 8, 2025
Min discharge: 2,310 cfs

Sep 22, 2025
Days at flood stage: 0

Computed from the local daily-values archive.

Nearby Gauges

West Branch Susquehanna River at Lewisburg, PA
9.5 mi · 16,100 cfs

High
Chillisquaque Creek Near Potts Grove, PA
9.8 mi · 80 cfs

Normal
Penns Creek at Penns Creek, PA
11.8 mi · 422 cfs

Normal
Susquehanna River at Danville, PA
13.8 mi · 15,700 cfs

High
East Mahantango Creek Near Dalmatia, PA
16.1 mi · 182 cfs

High