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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 01457500 Delaware River at Riegelsville NJ


Warren County, New Jersey
Hydrologic Unit Code 02040105
Latitude  40°35'41", Longitude  75°11'23" NAD83
Drainage area 6,328  square miles
Gage datum 125.12 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 2018-10-01 -> 2024-09-30)

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 19,600 13,200 14,000 17,700 21,500 11,700 6,500 6,000 10,200 12,000 17,200 17,800
2 19,600 12,400 13,800 19,100 28,400 11,300 6,170 5,820 28,800 10,800 18,000 17,500
3 18,600 12,200 14,100 21,000 27,200 11,100 6,360 6,060 21,000 11,400 20,100 16,400
4 18,100 15,100 15,700 23,700 23,000 10,100 6,560 10,800 14,700 12,200 18,000 15,400
5 18,000 15,500 15,300 22,200 23,000 9,660 7,060 15,300 12,000 12,700 14,900 14,900
6 18,200 14,300 14,800 19,900 26,000 8,580 6,670 11,500 10,700 13,500 13,800 13,500
7 16,600 14,200 15,500 18,700 24,600 7,820 6,650 8,840 10,200 11,900 14,400 13,300
8 15,300 14,900 16,600 27,300 23,400 7,620 6,400 8,940 11,000 11,000 13,300 13,500
9 14,600 16,500 16,400 30,000 20,200 8,640 8,100 8,730 12,600 10,500 11,900 12,500
10 23,400 14,600 19,600 24,000 17,900 9,260 12,700 7,650 11,000 9,320 12,200 11,800
11 22,700 13,700 21,400 20,400 17,000 9,470 12,500 6,830 9,660 9,040 12,200 14,400
12 19,000 12,900 19,600 19,100 16,900 11,400 11,900 6,250 8,760 11,800 12,000 16,600
13 19,400 13,100 20,100 22,200 18,400 11,100 11,000 6,020 8,470 11,700 14,700 14,700
14 21,300 12,800 18,900 25,100 19,900 9,170 11,100 6,260 8,050 11,300 16,500 13,200
15 18,700 11,800 17,400 25,100 18,900 8,220 12,600 6,330 7,580 10,500 14,900 12,900
16 16,000 11,100 16,500 26,700 16,300 7,730 14,500 7,250 7,350 9,660 14,100 13,800
17 14,600 11,100 16,300 22,400 15,000 7,780 12,200 7,180 7,810 9,820 13,200 15,100
18 13,200 11,200 15,500 19,300 13,900 8,460 11,800 6,620 7,290 9,560 12,500 21,900
19 12,400 12,700 17,000 19,300 12,900 8,910 13,400 10,100 6,670 9,210 11,700 28,400
20 13,100 11,900 17,300 21,000 13,300 8,850 11,100 9,240 6,300 8,170 11,200 21,600
21 12,900 11,300 16,100 21,900 12,400 8,710 9,650 7,590 6,100 7,720 11,000 20,500
22 11,400 11,000 17,000 20,300 11,600 9,410 9,680 7,240 6,260 7,280 11,500 21,800
23 11,600 10,700 18,700 18,300 10,600 8,610 10,800 16,800 6,720 7,100 11,200 21,300
24 14,700 11,900 21,500 17,300 10,100 9,170 9,400 16,200 10,600 6,800 11,000 20,900
25 20,500 12,200 21,800 16,100 9,530 9,880 8,100 12,500 14,700 6,780 14,100 26,500
26 23,000 11,900 20,800 14,800 8,550 8,890 7,550 11,000 15,700 8,300 14,900 31,500
27 21,700 11,600 18,800 15,400 8,140 9,810 6,980 9,920 11,700 20,100 17,300 23,500
28 20,300 12,600 17,900 16,800 8,420 9,160 6,530 8,620 9,620 18,400 18,600 24,400
29 19,000 16,700 18,000 15,500 9,650 8,140 6,240 7,580 8,850 14,300 16,600 23,500
30 17,100   17,300 14,900 12,200 7,120 6,320 7,420 8,980 14,700 16,100 20,700
31 14,800   16,600   13,700   6,000 7,810   15,200   19,200