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USGS Daily Statistics for Kentucky

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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 03309000 GREEN RIVER AT MAMMOTH CAVE, KY


Edmonson County, Kentucky
Hydrologic Unit Code 05110001
Latitude  37°10'48", Longitude  86°06'45" NAD27
Drainage area 2,020.0  square miles
Contributing drainage area 1,539.0  square miles
Gage datum 409.35 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 1937-10-01 -> 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 6,820 6,890 7,110 6,170 3,160 1,930 1,510 1,710 1,200 1,310 1,400 3,390
2 8,120 7,000 7,680 5,750 2,910 2,050 1,400 1,910 1,260 1,160 1,320 4,380
3 8,800 7,010 8,340 5,120 2,800 2,100 1,430 1,710 1,480 1,060 1,290 3,800
4 8,550 7,360 7,570 4,910 3,080 1,960 1,400 1,560 1,700 1,090 1,270 2,660
5 7,360 7,610 6,320 4,630 3,670 2,020 1,310 1,500 1,560 1,060 1,270 2,190
6 7,290 7,400 6,060 4,470 4,160 1,900 1,360 1,390 1,280 864 1,660 2,160
7 7,100 7,060 6,850 4,360 3,730 1,780 1,440 1,180 1,000 744 1,850 2,460
8 7,530 6,560 7,520 4,540 3,280 1,950 1,400 1,020 879 868 1,380 2,600
9 7,890 5,090 7,310 4,570 3,350 1,810 1,400 891 813 779 1,110 2,350
10 7,220 4,590 6,350 4,590 3,470 1,790 1,360 857 771 679 1,030 2,140
11 6,210 5,580 5,400 4,770 3,100 1,860 1,160 969 680 664 1,060 2,470
12 5,380 7,020 5,130 5,450 2,510 1,880 957 1,030 651 686 1,400 3,130
13 5,370 7,640 5,810 6,140 2,180 1,790 873 1,080 701 624 1,470 3,250
14 5,660 8,630 6,280 6,800 2,100 1,730 871 1,000 809 631 1,480 3,300
15 5,710 8,520 6,240 7,030 2,110 1,890 1,010 872 771 629 1,630 3,730
16 5,820 8,620 5,860 6,730 2,280 2,190 1,150 735 690 796 2,010 4,240
17 5,580 9,730 5,310 6,300 2,280 2,290 1,300 747 660 775 1,800 4,810
18 5,230 10,400 5,350 5,510 2,480 2,280 1,420 808 903 635 1,500 4,970
19 5,250 9,200 6,360 4,860 2,540 2,430 1,500 820 854 675 1,560 4,710
20 5,390 7,210 7,010 4,540 2,500 2,240 1,600 729 742 777 1,760 3,730
21 5,550 6,680 7,390 4,400 2,470 2,050 1,580 686 775 906 1,650 3,080
22 5,190 6,750 7,020 4,040 2,470 2,180 1,630 701 977 878 1,730 2,930
23 5,210 7,030 5,970 3,960 2,490 2,380 1,380 811 1,270 849 2,030 2,940
24 5,590 7,520 4,770 3,580 2,580 2,370 1,220 807 1,690 814 2,100 3,760
25 5,780 7,630 4,190 3,430 2,400 2,130 979 655 1,860 765 2,030 3,600
26 5,580 7,250 4,480 3,360 2,300 1,880 875 542 1,340 702 2,070 3,190
27 5,380 5,920 4,540 3,330 3,140 1,820 950 592 878 643 1,990 3,150
28 4,890 6,010 5,160 3,560 3,180 1,680 1,120 588 1,020 961 2,050 3,760
29 4,330 7,100 6,070 3,370 2,290 1,740 1,180 673 1,300 961 2,190 4,630
30 4,550   6,240 3,210 1,790 1,700 1,070 931 1,350 873 2,440 5,340
31 5,820   6,060   1,780   1,180 1,210   993   5,930