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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 03049500 Allegheny River at Natrona, PA


Allegheny County, Pennsylvania
Hydrologic Unit Code 05010009
Latitude  40°36'55", Longitude  79°43'07" NAD27
Drainage area 11,410  square miles
Gage datum 735.8 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 1938-10-01 -> 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 29,100 24,900 33,500 39,400 25,200 17,000 12,300 8,600 6,580 8,980 13,700 23,000
2 28,600 24,100 33,800 38,400 24,400 16,800 12,400 8,000 6,810 9,340 14,100 23,300
3 28,400 24,300 34,500 40,500 23,900 16,700 12,100 8,000 6,980 9,660 14,300 22,700
4 29,200 24,200 35,300 41,000 23,600 16,500 11,300 7,850 7,090 9,750 14,700 23,400
5 29,900 24,000 36,800 42,200 23,000 16,700 10,400 8,040 6,810 9,630 14,700 24,300
6 29,400 24,200 37,900 43,300 22,400 16,300 10,200 7,810 6,480 9,300 15,200 24,100
7 28,900 24,300 38,400 41,400 22,200 15,200 9,770 7,460 6,500 9,060 15,000 24,200
8 27,600 24,000 38,000 40,300 22,200 14,600 9,470 7,580 6,370 9,070 14,700 25,000
9 26,500 23,100 39,000 39,700 22,900 14,700 9,310 7,570 7,050 8,980 14,500 25,000
10 25,100 22,500 39,000 39,200 23,300 14,800 8,990 7,550 8,280 8,980 14,300 25,100
11 23,900 24,200 38,100 37,500 23,700 13,900 8,770 7,490 7,790 8,750 15,200 25,300
12 23,800 24,500 37,700 37,100 24,400 13,800 8,890 7,650 7,440 8,550 15,900 25,800
13 25,200 24,800 38,300 36,900 26,700 14,100 9,300 7,790 7,430 8,460 16,400 26,600
14 24,300 26,200 38,200 35,200 26,500 14,800 9,350 7,710 7,560 8,660 16,100 27,100
15 23,800 26,400 38,500 34,400 25,400 15,400 9,060 8,250 7,740 9,100 16,000 27,000
16 23,700 26,900 38,400 33,600 25,000 15,200 9,350 7,690 7,820 10,500 16,200 25,600
17 23,200 27,500 38,300 33,300 24,900 15,100 9,320 7,130 7,930 10,400 17,900 24,600
18 23,300 28,400 38,700 32,600 24,900 15,000 9,280 6,870 9,490 10,600 18,300 24,700
19 24,400 28,500 36,700 31,800 24,300 15,200 9,190 6,540 9,140 10,900 18,900 24,500
20 24,900 28,900 36,800 31,700 23,800 15,200 10,200 6,760 8,800 11,100 19,500 23,200
21 24,500 29,600 36,800 30,600 23,300 14,800 9,740 6,720 8,670 11,000 19,200 23,300
22 24,700 29,900 38,200 29,400 23,300 14,500 10,100 6,750 8,540 10,800 19,100 24,200
23 24,600 31,600 38,700 27,900 23,200 14,900 10,400 6,590 8,780 10,500 19,200 23,700
24 25,200 32,200 37,700 27,200 22,500 14,400 10,000 6,420 8,380 10,400 19,300 24,200
25 26,000 32,800 37,000 27,100 21,300 13,700 9,700 6,370 8,120 10,700 19,500 25,100
26 26,500 33,100 36,600 27,600 20,900 14,100 9,030 6,200 7,970 11,100 20,000 25,600
27 26,700 32,400 36,900 27,600 20,300 12,900 8,720 6,010 8,060 11,400 21,100 25,700
28 26,800 33,100 36,800 26,600 19,800 12,900 8,650 5,880 8,310 12,100 21,800 26,200
29 26,000 32,300 37,600 26,600 19,400 13,000 8,400 6,210 8,770 12,800 22,300 27,400
30 25,300   37,700 26,500 18,100 12,400 8,100 6,430 9,090 13,400 22,600 29,200
31 26,300   39,200   17,500   8,330 6,480   13,500   30,200