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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 1,110 1,360 1,130 698 221 143 122 340 870
2 1,150 591 1,040 1,000 1,450 1,080 616 149 146 128 350 888
3 902 591 1,030 966 1,370 1,180 601 145 120 148 402 910
4 868 683 1,010 1,070 1,390 1,420 585 106 125 140 442 938
5 1,020 901 972 954 1,330 1,470 623 126 154 129 427 823
6 955 1,040 992 947 1,110 1,390 537 92 94 98 380 740
7 889 1,060 1,030 1,030 1,110 1,430 458 96 103 119 342 779
8 815 1,080 1,020 1,030 1,230 1,190 447 83 135 117 332 791
9 747 1,100 1,010 911 1,270 1,040 514 71 120 201 267 701
10 701 992 1,210 891 1,220 950 500 64 129 206 251 722
11 774 775 1,180 1,000 1,280 1,030 563 56 145 204 240 789
12 871 723 1,280 1,210 1,490 1,120 645 59 185 218 266 797
13 1,020 912 1,410 1,150 1,380 1,310 742 107 158 206 315 802
14 918 860 1,440 1,390 1,550 1,320 681 109 435 229 366 736
15 878 819 1,300 1,520 1,410 1,340 708 140 470 199 417 660
16 854 751 1,220 1,390 1,660 1,300 688 92 390 210 475 734
17 809 815 1,140 1,240 1,750 1,110 514 84 356 205 595 710
18 680 834 1,020 1,140 1,580 1,070 404 103 326 220 641 678
19 665 736 1,030 1,230 1,670 1,110 312 150 269 221 730 596
20 658 805 1,040 1,280 1,460 1,240 263 106 225 252 732 546
21 682 1,080 1,010 1,260 1,300 1,120 212 77 184 280 745 565
22 683 1,160 949 1,280 1,140 1,080 228 68 139 241 666 605
23 747 1,270 893 1,180 1,020 1,150 217 69 120 260 630 652
24 837 1,390 845 1,030 984 1,030 197 76 116 278 590 776
25 822 1,550 821 1,000 1,040 860 295 81 121 299 616 917
26 732 1,520 838 983 1,310 837 417 86 117 277 660 885
27 680 1,380 916 1,000 1,330 785 447 148 118 344 686 1,120
28 679 1,240 1,080 1,130 1,390 781 450 187 120 320 811 1,260
29 622 337 1,140 1,080 1,360 702 396 203 111 286 817 1,450
30 574   1,120 1,230 1,250 748 329 159 133 300 827 1,490
31 613   1,190   1,190   281 148   383   1,340