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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" NAD83
Drainage area 938  square miles
Contributing drainage area 938.00  square miles
Gage datum 583.17 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 1982-10-01 -> 2023-09-30)

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 1,200 617 1,070 1,270 1,480 1,120 854 213 132 111 427 836
2 1,090 580 1,050 1,150 1,550 1,060 745 138 133 116 408 857
3 866 582 1,050 1,120 1,540 1,140 699 132 109 137 440 871
4 845 671 1,030 1,190 1,610 1,360 657 101 127 134 460 880
5 984 872 979 1,040 1,520 1,400 659 117 161 123 442 771
6 911 993 991 987 1,270 1,330 560 85 91 95 388 698
7 837 1,000 1,020 1,040 1,210 1,370 459 88 94 114 336 734
8 766 1,020 1,030 1,060 1,270 1,160 442 76 123 111 321 735
9 698 1,050 1,020 946 1,320 1,040 516 67 109 187 255 650
10 671 960 1,200 909 1,290 936 484 64 116 194 240 666
11 845 780 1,160 987 1,330 990 532 55 131 200 234 727
12 948 745 1,250 1,160 1,500 1,060 614 55 168 211 264 738
13 1,040 920 1,370 1,110 1,390 1,240 703 105 143 196 317 754
14 943 870 1,390 1,340 1,530 1,240 645 112 392 225 357 689
15 908 825 1,260 1,490 1,400 1,260 666 152 423 207 394 625
16 880 754 1,190 1,360 1,590 1,230 663 143 352 218 444 706
17 829 842 1,120 1,230 1,700 1,060 508 212 321 213 550 689
18 719 892 1,030 1,140 1,650 1,010 404 188 294 226 593 655
19 706 803 1,100 1,220 1,710 1,060 318 197 243 223 677 574
20 682 869 1,130 1,270 1,530 1,210 274 122 203 244 678 514
21 696 1,140 1,100 1,250 1,390 1,070 235 80 167 265 688 523
22 688 1,220 1,040 1,260 1,240 1,070 266 74 127 228 617 559
23 737 1,330 979 1,150 1,110 1,170 253 70 110 246 584 604
24 810 1,410 928 1,000 1,050 1,010 209 70 105 276 547 720
25 792 1,540 889 1,030 1,070 858 283 74 109 350 571 848
26 704 1,510 897 1,060 1,300 905 392 83 106 313 610 825
27 649 1,380 967 1,040 1,300 871 415 148 107 381 631 1,040
28 646 1,240 1,120 1,140 1,360 978 416 177 108 460 740 1,160
29 595 473 1,170 1,170 1,350 872 367 189 103 442 748 1,330
30 557   1,140 1,340 1,240 908 306 146 121 436 779 1,390
31 594   1,290   1,180   264 136   497   1,270