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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 02246500 ST. JOHNS RIVER AT JACKSONVILLE, FL


Duval County, Florida
Hydrologic Unit Code 03080103
Latitude  30°19'20", Longitude  81°39'56" NAD27
Drainage area 8,850  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 1971-10-01 -> 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 6,810 4,940 8,230 8,390 3,460 1,340 8,920 7,150 7,590 6,860 8,950 11,900
2 4,320 6,580 8,680 6,520 1,910 6,490 6,800 6,950 6,670 7,810 6,990 7,730
3 4,800 8,040 7,870 5,310 6,920 9,450 7,150 6,730 3,380 8,670 3,780 7,170
4 8,070 8,200 4,820 7,050 3,370 5,750 8,200 7,460 1,270 8,800 6,160 6,270
5 6,640 4,230 3,920 3,120 3,090 4,170 8,920 9,350 5,340 6,960 1,520 10,400
6 7,560 2,720 -1.1 5,210 2,160 5,570 8,690 10,100 10,400 9,290 6,790 9,190
7 4,240 8,680 -143 9,450 2,340 5,550 9,080 5,710 9,550 7,800 11,300 6,180
8 3,180 8,750 3,570 8,840 4,450 6,500 6,910 7,040 8,900 14,400 6,440 1,600
9 5,100 1,870 6,270 4,720 4,530 8,920 6,020 7,690 10,400 12,800 5,380 7,020
10 6,060 6,190 6,220 1,970 4,670 8,740 8,340 7,430 7,730 12,700 8,910 8,690
11 6,710 9,320 3,210 3,950 422 4,370 7,740 9,670 10,800 17,900 7,260 8,120
12 11,200 11,700 9,980 5,780 778 6,820 6,590 9,090 9,090 13,800 6,330 5,950
13 11,700 8,870 7,510 5,000 -231 6,020 8,510 8,820 8,780 10,700 3,120 7,850
14 6,790 9,400 7,340 2,950 -2,080 3,360 9,650 6,880 6,850 14,800 6,270 9,590
15 6,950 7,570 6,990 2,380 1,820 6,230 10,600 8,460 7,130 10,800 9,410 9,510
16 8,190 8,180 5,420 355 2,440 4,150 7,330 8,070 7,820 11,300 12,500 10,500
17 6,210 7,310 3,210 5,010 4,330 5,470 6,920 7,430 9,810 12,700 11,600 11,300
18 7,810 4,230 2,770 4,360 3,170 2,290 8,980 8,680 10,600 13,800 6,400 7,350
19 6,470 10,400 1,410 8,310 830 3,600 7,040 9,620 5,310 11,900 8,020 5,990
20 7,740 6,710 3,820 5,940 2,890 8,320 8,690 7,530 7,500 12,000 6,450 8,020
21 3,160 7,590 7,380 2,600 3,640 5,530 6,490 6,440 7,470 10,000 7,300 10,300
22 4,690 9,030 3,740 1,600 1,770 9,440 4,790 6,640 10,500 7,520 9,090 6,790
23 8,520 6,490 3,640 5,310 4,360 10,500 7,280 6,720 7,140 6,710 7,900 8,650
24 10,800 4,780 4,370 6,730 5,780 5,860 6,720 5,950 3,990 8,180 7,190 11,600
25 7,490 2,120 8,050 4,690 2,730 6,630 4,380 1,870 10,500 11,500 11,200 8,520
26 6,630 2,880 5,670 2,350 1,290 6,780 4,480 1,810 10,500 9,810 13,900 8,980
27 5,950 1,840 4,180 4,560 2,410 8,770 5,510 7,170 14,100 13,100 13,700 9,740
28 6,090 5,940 5,530 4,820 6,130 9,200 6,540 10,500 10,300 11,600 10,400 9,830
29 7,030 9,430 7,490 1,650 6,900 8,860 6,710 10,000 8,180 9,520 9,720 11,900
30 5,850   7,610 4,080 1,400 6,700 8,970 9,590 10,600 10,200 11,100 10,200
31 4,980   9,720   3,070   8,460 6,740   11,000   8,780