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USGS Daily Statistics for Illinois

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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 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 -> 2019-09-30)

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 1,260 633 1,070 1,220 1,380 1,150 701 223 143 122 340 870
2 1,150 591 1,040 1,100 1,510 1,100 620 145 146 128 350 888
3 902 591 1,030 1,070 1,470 1,190 605 141 120 148 402 910
4 868 683 1,010 1,160 1,550 1,420 589 103 125 140 442 938
5 1,020 901 972 1,000 1,490 1,470 630 123 154 129 427 823
6 955 1,040 992 974 1,240 1,380 549 89 94 98 380 740
7 889 1,060 1,030 1,050 1,210 1,420 465 94 103 119 342 779
8 815 1,080 1,020 1,060 1,290 1,180 449 81 135 117 332 791
9 747 1,100 1,010 953 1,350 1,030 511 69 120 201 267 701
10 701 992 1,210 919 1,290 938 497 62 129 206 251 722
11 774 775 1,180 1,010 1,330 1,020 556 55 145 204 240 789
12 871 723 1,280 1,200 1,530 1,100 635 58 185 218 266 797
13 1,020 912 1,410 1,150 1,420 1,290 730 104 158 206 315 802
14 918 860 1,440 1,390 1,570 1,300 670 106 435 229 366 736
15 878 819 1,300 1,560 1,420 1,330 694 136 470 199 417 660
16 854 751 1,220 1,410 1,650 1,300 672 90 390 210 475 734
17 809 815 1,140 1,280 1,730 1,120 505 82 356 205 595 710
18 680 834 1,020 1,180 1,570 1,070 400 100 326 220 641 678
19 665 736 1,030 1,280 1,650 1,120 310 148 269 221 730 596
20 658 805 1,040 1,330 1,440 1,280 261 103 225 252 732 546
21 682 1,080 1,010 1,310 1,290 1,140 211 76 184 280 745 565
22 683 1,160 949 1,320 1,130 1,140 224 73 139 241 666 605
23 747 1,270 893 1,210 1,030 1,210 212 73 120 260 630 652
24 837 1,390 845 1,040 998 1,050 192 75 116 278 590 776
25 822 1,550 821 1,010 1,050 870 287 79 121 299 616 917
26 732 1,520 838 991 1,310 851 406 85 117 277 660 885
27 680 1,380 916 991 1,330 793 435 144 118 344 686 1,120
28 679 1,240 1,080 1,110 1,400 782 438 182 120 320 811 1,260
29 622 337 1,140 1,070 1,370 701 388 203 111 286 817 1,450
30 574   1,120 1,210 1,260 746 321 159 133 300 827 1,490
31 613   1,190   1,210   277 148   383   1,340