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USGS Daily Statistics for Florida

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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 02234000 ST. JOHNS RIVER ABOVE LAKE HARNEY NEAR GENEVA, FL


Seminole County, Florida
Hydrologic Unit Code 03080101
Latitude  28°42'50", Longitude  81°02'08" NAD27
Drainage area 2,043  square miles
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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 1981-10-01 -> 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 1,770 1,350 1,180 1,260 828 637 1,450 2,000 2,820 3,700 3,300 2,380
2 1,780 1,340 1,150 1,280 813 641 1,480 2,050 2,860 3,750 3,280 2,350
3 1,770 1,320 1,130 1,280 790 642 1,510 2,090 2,870 3,750 3,240 2,300
4 1,800 1,270 1,140 1,230 793 653 1,540 2,130 2,910 3,730 3,210 2,260
5 1,750 1,280 1,120 1,220 774 678 1,570 2,180 3,040 3,710 3,150 2,230
6 1,710 1,290 1,090 1,190 767 711 1,590 2,230 3,030 3,680 3,180 2,180
7 1,690 1,250 1,080 1,160 756 755 1,640 2,280 3,030 3,710 3,110 2,130
8 1,630 1,250 1,080 1,120 710 813 1,680 2,340 3,060 3,770 3,040 2,120
9 1,610 1,240 1,050 1,110 670 865 1,700 2,370 3,100 3,820 2,990 2,070
10 1,590 1,220 1,060 1,120 649 891 1,710 2,370 3,170 3,840 3,000 2,030
11 1,590 1,210 1,070 1,120 627 920 1,700 2,390 3,310 3,900 2,930 1,990
12 1,560 1,170 1,090 1,110 613 942 1,680 2,390 3,330 3,960 2,890 2,000
13 1,540 1,170 1,120 1,100 600 979 1,680 2,400 3,380 3,980 2,820 2,000
14 1,530 1,190 1,120 1,090 587 1,000 1,700 2,390 3,360 3,940 2,770 1,990
15 1,550 1,190 1,110 1,100 574 1,020 1,710 2,420 3,310 3,890 2,730 2,010
16 1,510 1,190 1,120 1,120 573 1,030 1,720 2,460 3,350 3,850 2,720 2,010
17 1,490 1,180 1,120 1,110 563 1,050 1,750 2,510 3,330 3,820 2,710 2,000
18 1,490 1,190 1,120 1,090 556 1,100 1,780 2,550 3,280 3,800 2,690 1,960
19 1,460 1,210 1,120 1,050 552 1,140 1,790 2,580 3,240 3,750 2,680 1,930
20 1,430 1,220 1,120 1,020 573 1,190 1,810 2,550 3,280 3,760 2,640 1,920
21 1,420 1,200 1,080 1,010 571 1,230 1,830 2,680 3,340 3,730 2,600 1,910
22 1,410 1,210 1,110 968 566 1,270 1,850 2,730 3,380 3,670 2,570 1,910
23 1,370 1,180 1,110 952 575 1,310 1,850 2,780 3,370 3,630 2,600 1,880
24 1,410 1,210 1,110 948 585 1,310 1,870 2,810 3,390 3,610 2,570 1,860
25 1,410 1,220 1,100 934 601 1,330 1,930 2,820 3,410 3,600 2,540 1,830
26 1,410 1,220 1,100 915 611 1,350 1,940 2,820 3,620 3,580 2,520 1,840
27 1,390 1,210 1,100 899 613 1,370 1,940 2,830 3,490 3,570 2,500 1,840
28 1,400 1,200 1,070 890 616 1,390 1,970 2,850 3,540 3,510 2,500 1,840
29 1,410 1,390 1,070 884 616 1,410 1,970 2,820 3,600 3,470 2,480 1,810
30 1,380   1,110 846 619 1,420 1,970 2,800 3,750 3,430 2,420 1,810
31 1,370   1,210   625   1,970 2,830   3,350   1,780