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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 07022000 Mississippi River at Thebes, IL


Alexander County, Illinois
Hydrologic Unit Code 07140105
Latitude  37°13'12.9", Longitude  89°27'47.4" NAD83
Drainage area 713,200  square miles
Gage datum 299.70 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 1932-10-01 -> 2025-09-30)

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
1 160,000 151,000 217,000 312,000 357,000 323,000 306,000 206,000 153,000 162,000 153,000 159,000
2 162,000 154,000 217,000 313,000 362,000 321,000 305,000 203,000 153,000 159,000 156,000 158,000
3 162,000 155,000 217,000 314,000 363,000 319,000 307,000 199,000 153,000 157,000 161,000 158,000
4 159,000 155,000 218,000 319,000 363,000 319,000 309,000 195,000 153,000 156,000 166,000 160,000
5 158,000 155,000 219,000 324,000 362,000 319,000 308,000 191,000 152,000 156,000 172,000 161,000
6 157,000 156,000 222,000 327,000 360,000 317,000 305,000 188,000 150,000 157,000 176,000 160,000
7 154,000 157,000 227,000 328,000 358,000 315,000 300,000 185,000 149,000 159,000 177,000 158,000
8 153,000 157,000 230,000 330,000 356,000 314,000 293,000 183,000 147,000 161,000 174,000 156,000
9 150,000 157,000 233,000 330,000 355,000 313,000 287,000 180,000 145,000 162,000 170,000 154,000
10 147,000 157,000 235,000 329,000 354,000 311,000 282,000 179,000 144,000 162,000 166,000 153,000
11 145,000 157,000 238,000 329,000 354,000 310,000 278,000 177,000 144,000 162,000 163,000 151,000
12 145,000 159,000 242,000 329,000 351,000 312,000 274,000 174,000 146,000 161,000 161,000 149,000
13 145,000 160,000 246,000 332,000 349,000 314,000 269,000 171,000 147,000 163,000 159,000 147,000
14 145,000 160,000 251,000 335,000 348,000 314,000 265,000 168,000 148,000 164,000 158,000 145,000
15 145,000 161,000 254,000 339,000 346,000 313,000 260,000 165,000 149,000 164,000 159,000 144,000
16 144,000 162,000 258,000 341,000 345,000 314,000 257,000 162,000 153,000 164,000 159,000 143,000
17 143,000 162,000 263,000 341,000 344,000 315,000 253,000 162,000 155,000 164,000 159,000 143,000
18 141,000 164,000 270,000 339,000 346,000 316,000 250,000 162,000 158,000 163,000 159,000 144,000
19 142,000 167,000 276,000 337,000 348,000 314,000 245,000 161,000 161,000 162,000 161,000 143,000
20 142,000 170,000 281,000 337,000 349,000 312,000 239,000 159,000 160,000 159,000 162,000 141,000
21 143,000 173,000 285,000 338,000 347,000 310,000 235,000 158,000 158,000 158,000 162,000 139,000
22 143,000 180,000 288,000 340,000 344,000 307,000 232,000 156,000 158,000 157,000 163,000 141,000
23 142,000 190,000 288,000 344,000 340,000 306,000 230,000 154,000 157,000 156,000 163,000 140,000
24 142,000 200,000 288,000 347,000 335,000 307,000 229,000 151,000 158,000 156,000 163,000 140,000
25 145,000 206,000 288,000 349,000 330,000 309,000 228,000 148,000 158,000 155,000 161,000 141,000
26 146,000 209,000 289,000 349,000 326,000 310,000 226,000 147,000 159,000 154,000 160,000 141,000
27 146,000 212,000 291,000 348,000 325,000 311,000 223,000 146,000 160,000 154,000 159,000 140,000
28 145,000 214,000 294,000 348,000 325,000 313,000 219,000 146,000 161,000 154,000 160,000 142,000
29 144,000 179,000 298,000 347,000 324,000 311,000 216,000 147,000 162,000 154,000 161,000 147,000
30 144,000   303,000 351,000 324,000 309,000 212,000 150,000 163,000 153,000 160,000 152,000
31 147,000   309,000   324,000   209,000 152,000   153,000   157,000