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USGS Daily Statistics for Pennsylvania

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[!] Over the next year, the USGS Pennsylvania Water Science Center will be updating the geodetic vertical elevation (gage datum) for many locations. Click HERE for additional information including a current list of streamgages with upcoming datum changes. This update in gage datum does not affect the location of the streamgage, nor the observed local gage height or discharge recorded at the streamgage.


The statistics generated from this site are based on approved daily-mean data and may not match those published by the USGS in official publications. The user is responsible for assessment and use of statistics from this site. For more details on why the statistics may not match, click here.

USGS 01553500 West Branch Susquehanna River at Lewisburg, PA


Northumberland County, Pennsylvania
Hydrologic Unit Code 02050206
Latitude  40°58'03", Longitude  76°52'36" NAD27
Drainage area 6,847.00  square miles
Contributing drainage area 6,847.00  square miles
Gage datum 428.20 feet above NGVD29
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00060, Discharge, cubic feet per second,
Day of
month		 Mean of daily mean values for each day for water year of record in, ft3/s   (Calculation Period 1939-10-01 -> 2023-09-30)

Calculation period restricted by USGS staff due to special conditions at/near site
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1 14,300 11,200 16,900 27,800 16,300 11,500 6,530 4,640 3,500 6,000 7,310 13,300
2 13,500 11,100 17,200 27,300 15,600 10,900 6,440 4,770 3,450 5,550 7,180 13,900
3 13,600 11,900 17,900 27,600 14,800 10,600 6,030 4,630 3,630 5,100 7,770 12,700
4 12,800 12,300 17,700 27,700 14,700 10,400 5,910 4,460 3,800 5,060 6,930 12,000
5 12,800 11,600 19,400 28,500 14,200 9,760 5,590 4,070 3,730 4,990 6,880 12,100
6 12,900 11,100 21,200 29,400 14,100 10,100 5,270 3,950 3,510 4,910 7,150 11,900
7 12,800 11,100 21,400 27,500 14,400 10,000 5,100 3,910 4,160 4,710 7,240 11,900
8 12,700 11,000 20,400 25,400 14,700 9,300 4,950 3,940 5,030 4,410 7,490 11,900
9 12,600 10,800 20,400 23,800 14,500 8,620 4,820 3,890 3,850 4,370 8,690 11,700
10 11,900 10,200 20,800 22,800 14,500 7,990 4,620 3,890 4,310 4,840 8,720 11,500
11 11,100 10,500 21,400 22,200 14,700 7,750 4,490 3,810 5,030 4,730 8,400 11,900
12 10,600 11,000 20,900 21,100 15,100 7,440 4,320 3,640 4,800 4,710 8,590 12,600
13 10,700 10,600 19,900 20,700 16,300 7,440 4,530 3,890 4,300 5,060 9,320 12,400
14 11,200 11,400 19,900 20,500 17,200 7,860 4,790 4,400 4,160 5,030 9,160 13,300
15 11,300 11,200 21,000 20,900 16,700 8,180 4,590 4,200 3,980 5,460 8,820 12,700
16 11,000 12,800 22,600 21,100 15,700 8,550 4,690 3,820 3,650 5,310 8,590 12,000
17 10,700 12,600 22,700 22,000 15,700 8,300 4,930 3,510 3,590 5,260 9,270 11,700
18 10,200 13,200 22,800 21,000 15,400 7,850 4,620 3,740 5,100 5,280 9,760 11,300
19 11,000 13,400 21,700 18,900 15,600 8,040 5,120 4,550 6,550 5,350 9,370 10,900
20 12,500 13,500 20,900 18,100 15,700 7,880 4,930 4,450 5,420 5,980 9,520 10,600
21 12,300 14,000 21,400 18,100 15,100 8,220 4,540 3,910 4,720 6,830 10,000 11,000
22 12,000 14,500 22,900 18,000 14,700 10,000 4,730 3,610 4,370 6,950 9,770 11,700
23 11,900 15,600 23,900 17,000 15,800 10,800 4,770 3,630 4,490 6,400 9,630 12,100
24 12,000 16,500 23,200 16,100 15,400 10,400 5,570 3,450 5,080 6,310 9,270 12,400
25 13,500 18,600 23,100 16,000 14,000 8,560 5,850 3,190 4,960 6,070 9,170 13,500
26 13,800 18,700 22,900 15,800 13,500 7,330 5,220 2,930 6,270 6,070 11,100 13,300
27 13,900 17,900 23,300 16,100 13,500 6,690 4,760 2,860 7,000 6,280 12,300 12,500
28 13,900 17,300 22,900 16,200 14,100 6,750 5,170 2,830 5,860 6,650 12,400 11,900
29 12,900 15,500 23,100 16,000 14,100 7,010 5,130 3,710 5,990 7,020 13,900 11,800
30 11,700   24,100 15,700 12,700 6,900 4,630 3,570 6,190 7,490 13,900 13,000
31 11,400   26,400   12,100   4,310 3,330   7,620   14,600