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USGS Daily Statistics for the Nation

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 01551500 WB Susquehanna River at Williamsport, PA


Lycoming County, Pennsylvania
Hydrologic Unit Code 02050206
Latitude  41°14'10", Longitude  76°59'49" NAD27
Drainage area 5,682  square miles
Gage datum 494.27 feet above NAVD88
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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 1894-10-01 -> 2025-09-30)

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 10,600 9,410 16,200 23,500 14,300 9,170 5,700 3,430 2,680 4,480 5,560 9,980
2 10,600 8,990 16,700 22,700 13,300 8,340 5,340 3,500 2,580 4,130 5,500 10,200
3 10,400 9,510 15,900 22,600 12,200 8,200 4,980 3,290 2,910 4,390 5,780 9,190
4 9,970 9,560 16,200 22,300 11,900 8,540 4,990 3,080 3,110 3,930 5,550 9,170
5 10,100 9,520 17,500 22,000 11,400 7,890 4,790 2,990 2,990 3,670 5,770 8,910
6 10,100 9,050 18,100 22,200 11,400 8,450 4,750 2,880 3,090 3,600 5,950 8,580
7 10,200 9,290 18,100 21,500 11,300 8,230 4,520 2,940 3,150 3,500 5,720 8,510
8 10,700 9,070 18,300 20,500 11,800 7,790 4,170 3,080 3,290 3,320 5,660 8,620
9 10,700 8,880 17,800 20,300 12,000 7,270 4,390 3,400 2,790 3,320 6,380 8,550
10 10,000 8,280 17,400 19,800 12,400 6,920 4,230 3,670 3,350 3,600 6,420 8,380
11 9,380 8,680 17,600 19,000 12,900 6,580 4,240 3,310 3,750 3,430 6,450 8,990
12 8,890 9,070 18,300 18,000 13,000 6,350 4,010 3,220 3,430 3,430 6,610 9,210
13 9,100 8,940 19,100 17,800 14,000 6,320 4,090 3,260 3,090 3,800 7,000 9,120
14 9,820 9,400 19,000 17,500 14,300 6,410 4,060 3,290 3,010 3,850 7,120 9,820
15 9,770 10,400 20,700 18,300 13,200 6,610 3,780 3,180 2,820 4,040 6,640 10,600
16 9,610 11,300 21,100 18,300 12,400 6,780 3,890 3,140 2,650 3,800 6,500 10,100
17 9,040 11,000 20,800 18,300 12,100 7,110 3,720 2,930 2,750 3,670 7,220 9,690
18 8,490 10,800 21,000 17,100 12,100 6,970 3,510 3,310 3,950 3,680 7,980 9,410
19 9,230 10,500 20,000 15,600 12,100 6,620 4,040 3,720 4,440 3,910 7,770 9,660
20 10,300 10,500 19,700 14,800 12,200 6,300 3,740 3,480 3,600 4,620 7,920 9,060
21 10,600 11,500 19,600 15,000 12,400 6,610 3,680 2,970 3,270 5,590 7,680 8,800
22 11,000 11,600 20,300 14,900 12,500 7,140 3,820 2,870 3,100 5,400 7,330 9,190
23 11,700 12,000 20,300 14,300 13,300 7,860 3,810 2,860 3,280 5,060 7,180 9,500
24 11,500 13,100 20,700 13,700 12,600 7,000 4,070 3,110 3,430 5,000 7,030 9,750
25 11,600 14,600 20,200 13,700 11,600 6,170 4,050 2,890 3,430 4,940 7,130 10,400
26 12,000 14,500 20,200 13,600 11,200 5,870 3,780 2,640 4,150 5,010 8,470 9,940
27 11,400 14,000 21,300 13,700 10,900 5,420 3,670 2,570 4,170 5,070 9,540 9,190
28 11,000 14,700 21,700 13,700 11,300 5,560 3,830 2,550 3,680 5,320 9,610 8,910
29 10,100 12,200 22,400 13,700 11,200 5,690 3,730 2,630 4,000 5,650 10,600 8,970
30 9,500   22,200 13,400 10,400 5,840 3,420 2,980 4,310 5,900 10,400 9,710
31 9,660   23,700   9,880   3,340 2,770   5,830   10,600