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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 05573540 SANGAMON RIVER AT ROUTE 48 AT DECATUR, IL


Macon County, Illinois
Hydrologic Unit Code 07130006
Latitude  39°49'52", Longitude  88°58'35" NAD27
Drainage area 938  square miles
Contributing drainage area 938.00  square miles
Gage datum 583.43 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 1982-10-01 -> 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 1,220 621 1,070 1,200 1,490 1,130 871 218 135 116 360 851
2 1,120 581 1,050 1,080 1,580 1,080 760 142 136 121 359 875
3 879 586 1,050 1,040 1,550 1,160 714 135 111 141 406 893
4 844 682 1,020 1,130 1,600 1,390 672 98 116 133 435 905
5 980 890 971 983 1,530 1,430 676 117 144 122 426 790
6 912 1,020 984 956 1,260 1,360 574 85 88 93 379 713
7 846 1,030 1,010 1,020 1,200 1,390 471 90 96 113 331 754
8 781 1,050 995 1,040 1,270 1,180 447 78 126 111 321 763
9 720 1,070 987 930 1,330 1,050 505 69 111 191 259 674
10 688 980 1,180 897 1,290 950 490 65 119 195 244 693
11 870 791 1,150 983 1,330 1,010 545 56 134 194 234 756
12 976 740 1,250 1,160 1,510 1,080 629 57 172 207 262 762
13 1,070 908 1,380 1,110 1,410 1,260 720 108 146 195 316 767
14 972 852 1,400 1,340 1,550 1,270 659 115 402 217 360 704
15 935 812 1,270 1,490 1,410 1,280 681 156 434 189 398 632
16 906 743 1,200 1,360 1,620 1,250 674 147 360 199 451 703
17 860 798 1,120 1,230 1,730 1,080 515 218 329 195 565 681
18 748 841 1,050 1,140 1,680 1,030 412 193 301 209 611 650
19 736 766 1,120 1,230 1,740 1,080 326 202 248 210 699 570
20 702 830 1,140 1,280 1,550 1,240 281 125 208 240 702 519
21 708 1,090 1,100 1,250 1,400 1,100 241 82 171 266 713 536
22 695 1,160 1,030 1,260 1,250 1,100 272 76 129 228 638 574
23 749 1,260 972 1,160 1,120 1,200 259 72 112 247 604 620
24 830 1,360 919 1,000 1,060 1,040 214 71 108 264 566 740
25 813 1,500 874 1,010 1,080 880 291 75 112 284 591 875
26 726 1,480 877 1,050 1,320 924 402 85 108 265 632 845
27 672 1,350 949 1,040 1,320 888 426 152 109 329 654 1,070
28 672 1,220 1,120 1,130 1,380 997 426 180 111 304 770 1,200
29 616 473 1,160 1,170 1,370 889 376 193 106 271 776 1,380
30 568   1,140 1,360 1,250 927 314 149 127 297 799 1,430
31 603   1,200   1,190   271 139   409   1,300