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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 07020500 Mississippi River at Chester, IL


Randolph County, Illinois
Hydrologic Unit Code 07140105
Latitude  37°54'02.7", Longitude  89°49'48.8" NAD83
Drainage area 708,600  square miles
Gage datum 340.73 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 1941-10-01 -> 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
1 157,000 148,000 212,000 316,000 361,000 318,000 305,000 207,000 158,000 163,000 154,000 158,000
2 158,000 151,000 212,000 317,000 364,000 316,000 307,000 204,000 158,000 160,000 159,000 156,000
3 155,000 151,000 212,000 319,000 364,000 317,000 308,000 200,000 158,000 159,000 164,000 157,000
4 153,000 150,000 214,000 322,000 363,000 317,000 307,000 195,000 156,000 158,000 170,000 159,000
5 153,000 150,000 218,000 324,000 360,000 316,000 305,000 192,000 154,000 159,000 174,000 158,000
6 152,000 151,000 222,000 326,000 356,000 315,000 300,000 189,000 153,000 159,000 176,000 157,000
7 151,000 151,000 225,000 327,000 353,000 314,000 294,000 188,000 151,000 161,000 173,000 156,000
8 148,000 151,000 227,000 327,000 352,000 313,000 288,000 185,000 149,000 163,000 168,000 154,000
9 145,000 149,000 227,000 326,000 352,000 311,000 283,000 182,000 146,000 163,000 162,000 152,000
10 142,000 149,000 229,000 325,000 351,000 308,000 278,000 181,000 146,000 163,000 159,000 150,000
11 141,000 151,000 232,000 324,000 349,000 308,000 275,000 179,000 147,000 162,000 157,000 147,000
12 141,000 154,000 236,000 326,000 347,000 310,000 271,000 175,000 149,000 163,000 156,000 146,000
13 140,000 154,000 241,000 330,000 345,000 310,000 266,000 172,000 149,000 165,000 155,000 143,000
14 141,000 154,000 245,000 335,000 343,000 309,000 261,000 168,000 150,000 165,000 156,000 141,000
15 140,000 156,000 249,000 339,000 340,000 309,000 258,000 165,000 154,000 166,000 157,000 140,000
16 139,000 157,000 254,000 341,000 339,000 311,000 255,000 164,000 156,000 165,000 158,000 140,000
17 137,000 158,000 260,000 342,000 341,000 313,000 253,000 165,000 159,000 165,000 158,000 141,000
18 137,000 160,000 267,000 341,000 344,000 312,000 249,000 164,000 163,000 165,000 159,000 141,000
19 138,000 163,000 273,000 339,000 346,000 311,000 243,000 162,000 163,000 163,000 162,000 139,000
20 138,000 166,000 279,000 338,000 347,000 310,000 238,000 160,000 161,000 161,000 163,000 137,000
21 138,000 172,000 283,000 339,000 344,000 307,000 236,000 159,000 160,000 160,000 163,000 137,000
22 137,000 181,000 286,000 341,000 341,000 304,000 233,000 157,000 160,000 159,000 163,000 139,000
23 137,000 193,000 287,000 344,000 337,000 304,000 231,000 155,000 159,000 158,000 163,000 138,000
24 139,000 200,000 287,000 347,000 332,000 307,000 232,000 152,000 160,000 157,000 162,000 138,000
25 141,000 204,000 287,000 348,000 326,000 308,000 231,000 150,000 161,000 156,000 161,000 138,000
26 142,000 206,000 289,000 350,000 322,000 309,000 228,000 149,000 162,000 155,000 159,000 137,000
27 140,000 208,000 292,000 350,000 320,000 311,000 223,000 149,000 164,000 156,000 158,000 137,000
28 140,000 210,000 296,000 350,000 320,000 311,000 219,000 149,000 165,000 155,000 159,000 141,000
29 140,000 178,000 300,000 353,000 320,000 308,000 216,000 152,000 165,000 154,000 160,000 146,000
30 140,000   306,000 357,000 320,000 304,000 213,000 155,000 166,000 153,000 159,000 151,000
31 143,000   313,000   320,000   210,000 157,000   153,000   155,000