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USGS Daily Statistics for Louisiana

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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 07381490 Atchafalaya River at Simmesport, LA


Avoyelles Parish, Louisiana
Hydrologic Unit Code 08080101
Latitude  30°58'57", Longitude  91°47'54" NAD83
Drainage area 87,570.00  square miles
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00060, Discharge, cubic feet per second,
Day of
month
Mean of daily mean values for each day for 5 - 6 years of record in, ft3/s   (Calculation Period 2009-10-01 -> 2016-09-30)

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
1 240,000 233,000 221,000 359,000 300,000 363,000 261,000 219,000 127,000 107,000 107,000 168,000
2 244,000 234,000 225,000 356,000 299,000 360,000 260,000 214,000 125,000 102,000 105,000 165,000
3 248,000 235,000 231,000 355,000 300,000 354,000 259,000 211,000 125,000 102,000 104,000 165,000
4 252,000 240,000 238,000 351,000 302,000 347,000 258,000 207,000 124,000 103,000 101,000 162,000
5 253,000 242,000 243,000 349,000 307,000 342,000 259,000 204,000 122,000 106,000 97,600 162,000
6 252,000 242,000 245,000 345,000 315,000 336,000 257,000 201,000 117,000 106,000 96,400 164,000
7 251,000 241,000 247,000 343,000 323,000 330,000 258,000 193,000 114,000 103,000 93,900 165,000
8 253,000 242,000 251,000 341,000 332,000 325,000 259,000 189,000 111,000 101,000 95,900 167,000
9 253,000 242,000 259,000 336,000 339,000 319,000 262,000 187,000 106,000 99,500 101,000 171,000
10 260,000 243,000 264,000 330,000 344,000 315,000 261,000 180,000 103,000 98,000 101,000 177,000
11 266,000 251,000 264,000 328,000 351,000 310,000 263,000 173,000 103,000 98,900 102,000 183,000
12 262,000 261,000 267,000 329,000 352,000 303,000 261,000 169,000 103,000 99,500 104,000 186,000
13 255,000 268,000 275,000 327,000 355,000 300,000 258,000 167,000 105,000 101,000 159,000 190,000
14 250,000 274,000 280,000 324,000 361,000 297,000 258,000 163,000 105,000 103,000 161,000 195,000
15 241,000 277,000 284,000 318,000 367,000 300,000 258,000 160,000 108,000 105,000 160,000 202,000
16 236,000 277,000 286,000 314,000 373,000 294,000 260,000 156,000 108,000 107,000 158,000 206,000
17 232,000 275,000 294,000 312,000 376,000 293,000 260,000 153,000 108,000 110,000 156,000 211,000
18 227,000 273,000 298,000 310,000 376,000 293,000 262,000 155,000 107,000 110,000 150,000 215,000
19 218,000 271,000 301,000 310,000 379,000 292,000 260,000 153,000 104,000 109,000 148,000 223,000
20 210,000 263,000 304,000 311,000 380,000 289,000 260,000 151,000 104,000 112,000 152,000 228,000
21 206,000 254,000 309,000 309,000 380,000 284,000 258,000 150,000 109,000 110,000 151,000 229,000
22 206,000 248,000 320,000 311,000 382,000 283,000 259,000 149,000 111,000 108,000 148,000 231,000
23 207,000 238,000 321,000 315,000 381,000 283,000 258,000 148,000 109,000 108,000 148,000 232,000
24 211,000 227,000 326,000 316,000 379,000 278,000 255,000 145,000 108,000 112,000 147,000 230,000
25 214,000 220,000 333,000 315,000 378,000 275,000 253,000 140,000 105,000 113,000 148,000 230,000
26 219,000 220,000 338,000 312,000 379,000 276,000 248,000 137,000 104,000 113,000 154,000 233,000
27 222,000 220,000 341,000 309,000 378,000 272,000 244,000 134,000 104,000 112,000 161,000 232,000
28 223,000 221,000 343,000 307,000 379,000 268,000 242,000 132,000 104,000 110,000 162,000 234,000
29 226,000 195,000 349,000 304,000 376,000 264,000 238,000 127,000 104,000 106,000 164,000 233,000
30 229,000   355,000 299,000 373,000 260,000 233,000 129,000 106,000 106,000 168,000 231,000
31 232,000   360,000   368,000   226,000 129,000   105,000   232,000