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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 03075070 Monongahela River at Elizabeth, PA


Allegheny County, Pennsylvania
Hydrologic Unit Code 05020005
Latitude  40°15'44", Longitude  79°54'05" NAD27
Drainage area 5,340  square miles
Gage datum 717.34 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 1933-10-01 -> 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 12,600 13,900 16,100 14,300 9,970 7,740 5,230 4,800 3,140 3,270 5,220 10,100
2 13,800 14,600 16,700 14,200 9,920 7,420 4,650 4,210 3,100 3,440 5,480 9,950
3 14,300 14,700 16,200 14,200 11,000 8,060 4,430 4,160 2,990 3,370 5,460 10,100
4 15,300 15,300 18,100 14,300 11,400 8,120 4,970 4,290 3,200 3,210 5,430 10,400
5 15,000 15,000 21,100 14,700 12,000 8,720 4,510 4,670 3,260 3,100 6,320 10,100
6 14,200 15,300 22,200 14,400 12,700 7,860 5,320 5,410 3,410 3,130 7,220 9,660
7 13,600 15,600 22,500 14,700 13,200 7,620 4,850 5,130 3,820 2,970 6,460 10,600
8 14,400 15,400 19,600 14,300 13,900 6,440 4,610 4,380 3,100 2,830 6,230 11,700
9 13,000 14,700 18,200 14,600 13,300 5,910 4,790 4,280 3,190 3,090 6,490 12,200
10 12,700 15,300 17,100 15,200 12,600 5,800 5,110 4,200 3,600 3,960 6,310 12,800
11 13,100 15,500 17,000 14,700 12,100 6,250 5,670 4,040 3,000 3,450 5,930 12,700
12 13,000 14,800 18,100 14,200 11,400 6,030 5,040 4,210 2,570 3,220 6,440 12,100
13 12,300 14,300 19,000 15,300 11,200 5,980 4,770 4,140 2,980 3,180 6,950 12,100
14 12,100 15,700 18,500 15,400 10,300 7,060 4,480 4,060 3,060 3,010 6,390 13,100
15 12,900 16,200 19,000 14,400 10,700 6,420 4,220 3,860 2,930 3,280 6,190 12,700
16 12,500 16,000 17,200 14,600 11,000 5,830 4,000 3,640 2,650 4,450 6,660 12,300
17 11,500 16,500 16,900 14,700 11,200 5,770 3,890 3,660 2,960 3,950 7,010 12,700
18 12,500 16,000 17,300 13,900 11,300 5,810 3,390 4,400 4,020 3,840 6,330 13,500
19 12,900 16,300 16,600 13,000 11,300 5,990 3,580 4,560 3,790 3,780 6,530 12,700
20 13,600 15,600 17,600 13,300 11,100 6,180 4,130 3,750 3,260 3,660 7,420 11,300
21 13,300 15,000 17,800 11,800 11,000 6,050 3,670 3,960 3,180 4,080 7,310 11,700
22 13,100 15,600 18,600 11,200 10,800 6,170 3,970 3,880 3,430 4,380 6,860 12,200
23 13,600 16,600 17,400 11,200 10,000 6,760 4,260 3,980 3,350 3,950 7,340 12,200
24 14,600 17,200 17,500 11,400 9,350 7,540 4,580 3,950 3,270 3,880 7,260 12,100
25 15,200 16,700 17,300 12,100 9,030 5,920 4,510 3,640 3,130 4,150 7,450 12,100
26 15,400 17,200 16,300 12,700 8,540 5,410 3,830 3,220 3,210 4,050 7,700 12,400
27 14,700 16,900 15,600 12,400 8,470 4,950 3,960 3,480 3,000 4,080 8,900 12,800
28 13,600 15,800 14,700 11,500 8,930 5,200 4,320 3,470 3,450 4,660 8,780 12,500
29 13,400 16,700 15,100 11,500 8,980 5,440 5,220 3,410 3,890 5,530 9,950 12,100
30 13,900   14,300 10,600 7,860 5,100 5,630 3,190 3,510 5,890 10,400 13,000
31 15,200   14,300   7,570   4,710 3,100   5,260   13,000