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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 11303500 SAN JOAQUIN R NR VERNALIS CA


San Joaquin County, California
Hydrologic Unit Code 18040003
Latitude  37°40'34", Longitude 121°15'55" NAD27
Drainage area 13,539  square miles
Gage datum 25 feet above NGVD29
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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 1923-10-01 -> 2021-09-30)

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 4,320 5,590 7,490 7,130 7,330 7,540 4,090 1,500 1,560 1,960 2,290 2,420
2 4,300 5,580 7,410 7,180 7,240 7,410 3,900 1,490 1,550 1,980 2,270 2,450
3 4,250 5,640 7,370 7,100 7,170 7,360 3,720 1,490 1,550 2,020 2,240 2,510
4 4,520 5,670 7,370 7,020 7,160 7,370 3,610 1,490 1,560 2,050 2,210 2,560
5 4,620 5,740 7,370 6,990 7,170 7,330 3,530 1,470 1,570 2,070 2,180 2,740
6 4,490 5,820 7,350 6,980 7,240 7,260 3,420 1,460 1,580 2,070 2,130 2,870
7 4,480 5,850 7,350 7,030 7,270 7,110 3,330 1,450 1,590 2,090 2,060 2,960
8 4,450 5,900 7,290 7,070 7,310 6,980 3,240 1,440 1,610 2,140 2,030 3,180
9 4,470 5,990 7,260 7,200 7,320 6,870 3,130 1,440 1,620 2,150 2,020 3,540
10 4,490 6,140 7,240 7,260 7,350 6,760 3,030 1,430 1,630 2,140 2,010 3,540
11 4,520 6,280 7,270 7,250 7,360 6,660 2,950 1,420 1,640 2,170 2,000 3,410
12 4,560 6,510 7,300 7,290 7,370 6,580 2,880 1,410 1,660 2,200 1,990 3,350
13 4,560 6,670 7,200 7,290 7,350 6,430 2,780 1,410 1,670 2,220 1,970 3,290
14 4,500 6,800 7,110 7,250 7,310 6,270 2,680 1,410 1,690 2,250 1,980 3,180
15 4,460 6,880 7,100 7,210 7,270 6,140 2,580 1,410 1,740 2,300 1,990 3,100
16 4,570 6,920 7,070 7,200 7,280 6,040 2,480 1,410 1,750 2,360 2,010 3,080
17 4,690 7,030 7,120 7,240 7,310 5,940 2,400 1,420 1,760 2,380 2,010 3,100
18 4,800 7,150 7,170 7,280 7,290 5,780 2,320 1,440 1,770 2,370 2,020 3,100
19 4,920 7,270 7,170 7,250 7,310 5,650 2,200 1,450 1,790 2,350 2,040 3,110
20 4,930 7,380 7,150 7,230 7,380 5,560 2,090 1,470 1,820 2,330 2,090 3,120
21 4,950 7,440 7,130 7,250 7,440 5,490 1,980 1,470 1,830 2,310 2,220 3,130
22 5,030 7,490 7,020 7,240 7,420 5,400 1,880 1,480 1,830 2,320 2,330 3,160
23 5,190 7,490 6,920 7,200 7,430 5,310 1,810 1,480 1,850 2,310 2,430 3,210
24 5,200 7,510 6,860 7,170 7,440 5,170 1,750 1,490 1,860 2,310 2,410 3,400
25 5,260 7,500 6,800 7,190 7,460 5,040 1,690 1,500 1,880 2,350 2,390 3,750
26 5,380 7,480 6,840 7,200 7,520 4,830 1,650 1,510 1,890 2,380 2,380 3,890
27 5,550 7,450 6,910 7,240 7,550 4,700 1,610 1,530 1,900 2,400 2,350 3,760
28 5,620 7,390 6,920 7,310 7,620 4,530 1,580 1,530 1,900 2,390 2,350 3,950
29 5,730 7,420 6,930 7,350 7,700 4,400 1,570 1,540 1,910 2,360 2,360 4,100
30 5,700   6,990 7,370 7,700 4,250 1,550 1,550 1,930 2,330 2,380 4,170
31 5,620   7,060   7,650   1,530 1,550   2,320   4,270