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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 -> 2024-09-30)

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 1,200 611 1,110 1,280 1,450 1,090 833 208 129 108 417 836
2 1,090 575 1,090 1,170 1,520 1,040 727 135 130 114 398 857
3 866 576 1,090 1,130 1,510 1,120 682 129 107 133 430 871
4 845 663 1,090 1,210 1,570 1,330 641 99 124 131 449 880
5 984 859 1,040 1,060 1,490 1,370 644 115 158 121 431 771
6 911 978 1,040 998 1,240 1,300 552 83 89 93 379 698
7 837 987 1,070 1,040 1,190 1,340 453 86 92 111 328 734
8 766 1,010 1,070 1,050 1,290 1,130 442 74 120 108 314 735
9 698 1,030 1,060 943 1,350 1,010 525 66 106 182 249 650
10 671 944 1,230 904 1,310 915 495 62 114 189 234 666
11 845 769 1,180 971 1,340 967 531 54 128 196 229 727
12 948 736 1,250 1,130 1,480 1,040 605 54 164 206 257 738
13 1,040 907 1,360 1,090 1,380 1,210 689 102 139 192 309 754
14 943 859 1,370 1,320 1,510 1,210 630 110 383 220 349 689
15 908 817 1,240 1,470 1,380 1,230 651 148 413 202 385 625
16 880 748 1,180 1,340 1,560 1,200 648 140 343 212 433 706
17 829 833 1,110 1,220 1,660 1,030 496 207 313 208 537 689
18 719 880 1,030 1,120 1,620 990 395 183 287 221 579 655
19 706 791 1,100 1,200 1,670 1,030 311 192 237 218 661 574
20 682 852 1,120 1,250 1,500 1,180 268 119 198 239 662 514
21 696 1,120 1,100 1,230 1,360 1,050 230 78 163 258 672 523
22 688 1,200 1,030 1,240 1,210 1,050 259 72 124 223 602 559
23 737 1,310 978 1,130 1,090 1,140 247 68 107 240 570 604
24 810 1,410 930 984 1,030 989 204 68 103 269 534 720
25 792 1,540 899 1,010 1,050 837 276 72 106 341 557 848
26 704 1,510 914 1,040 1,270 883 383 82 103 306 595 825
27 649 1,410 984 1,030 1,280 850 405 145 104 372 631 1,040
28 646 1,300 1,130 1,110 1,330 954 406 172 106 449 740 1,160
29 595 473 1,180 1,150 1,320 851 358 185 101 432 748 1,330
30 551   1,140 1,320 1,210 886 298 142 118 426 779 1,390
31 588   1,280   1,150   258 133   485   1,270