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USGS Surface-Water 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 05576000 SOUTH FORK SANGAMON RIVER NEAR ROCHESTER, IL


Sangamon County, Illinois
Hydrologic Unit Code 07130007
Latitude  39°44'32", Longitude  89°34'02.2" NAD83
Drainage area 867  square miles
Gage datum 510.90 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 1948-10-01 -> 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
1 922 795 993 1,070 1,280 961 947 360 138 161 224 438
2 879 852 945 1,040 1,360 975 844 405 174 154 230 480
3 805 876 884 1,020 1,320 916 697 460 225 181 254 526
4 782 887 890 1,050 1,290 892 606 471 247 191 274 561
5 795 901 940 1,030 1,230 897 560 441 230 183 267 549
6 783 848 956 1,000 1,200 890 500 399 206 188 255 542
7 765 813 988 933 1,180 904 422 373 182 206 242 551
8 781 785 1,010 898 1,220 906 376 340 158 190 226 543
9 722 787 1,020 884 1,290 909 399 319 128 191 203 515
10 639 834 1,010 895 1,290 881 431 285 103 199 182 507
11 616 836 970 928 1,300 865 414 226 94 220 164 536
12 582 831 962 1,070 1,280 875 397 186 78 209 157 549
13 577 829 971 1,160 1,290 847 358 173 86 211 163 572
14 636 837 996 1,310 1,260 878 350 159 92 259 186 563
15 635 790 986 1,280 1,220 992 341 150 137 261 202 565
16 634 754 983 1,170 1,180 1,050 344 155 185 275 226 571
17 596 771 987 1,100 1,220 1,090 338 156 240 264 275 565
18 554 770 1,010 1,030 1,270 1,150 315 149 244 258 320 543
19 576 744 1,050 1,070 1,270 1,120 286 137 244 239 349 506
20 621 756 1,100 1,060 1,220 1,100 306 138 236 200 384 471
21 634 844 1,130 1,070 1,170 1,030 356 129 215 173 413 445
22 687 921 1,120 1,120 1,180 1,020 371 126 184 159 426 434
23 721 1,020 1,100 1,130 1,140 1,070 329 107 197 156 417 430
24 726 1,080 1,090 1,170 1,070 1,040 297 96 190 162 401 459
25 696 1,160 1,090 1,210 956 995 267 84 179 171 316 506
26 683 1,180 1,070 1,200 974 1,010 244 81 187 176 392 537
27 705 1,140 1,050 1,140 1,000 984 243 84 207 190 387 587
28 720 1,080 1,040 1,110 1,020 948 254 85 195 190 398 690
29 724 468 1,050 1,110 1,010 904 253 86 190 185 403 866
30 748   1,020 1,160 974 908 273 94 179 206 404 960
31 743   1,050   974   323 105   230   971