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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 water year of record in, ft3/s   (Calculation Period 2009-10-01 -> 2020-09-30)

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
1 254,000 275,000 276,000 380,000 332,000 382,000 268,000 215,000 145,000 128,000 149,000 177,000
2 262,000 273,000 282,000 377,000 331,000 378,000 269,000 210,000 143,000 124,000 149,000 177,000
3 268,000 272,000 288,000 377,000 331,000 373,000 270,000 207,000 140,000 126,000 147,000 178,000
4 273,000 274,000 295,000 374,000 334,000 368,000 272,000 205,000 138,000 125,000 141,000 179,000
5 276,000 274,000 300,000 369,000 339,000 364,000 274,000 203,000 137,000 126,000 123,000 179,000
6 278,000 272,000 302,000 365,000 345,000 359,000 272,000 200,000 134,000 127,000 123,000 182,000
7 280,000 271,000 306,000 363,000 351,000 355,000 271,000 195,000 131,000 125,000 123,000 182,000
8 282,000 272,000 312,000 362,000 358,000 350,000 273,000 192,000 128,000 124,000 127,000 184,000
9 284,000 270,000 320,000 358,000 364,000 346,000 274,000 192,000 126,000 124,000 130,000 189,000
10 291,000 269,000 331,000 355,000 369,000 343,000 272,000 189,000 125,000 125,000 131,000 195,000
11 295,000 272,000 339,000 353,000 376,000 339,000 273,000 184,000 124,000 127,000 131,000 200,000
12 294,000 277,000 344,000 353,000 378,000 333,000 273,000 181,000 123,000 128,000 134,000 201,000
13 291,000 280,000 353,000 352,000 379,000 329,000 272,000 181,000 123,000 131,000 165,000 203,000
14 288,000 282,000 360,000 351,000 382,000 325,000 272,000 177,000 122,000 133,000 166,000 208,000
15 284,000 285,000 367,000 348,000 387,000 324,000 273,000 173,000 124,000 135,000 167,000 213,000
16 281,000 284,000 370,000 346,000 391,000 317,000 273,000 166,000 124,000 135,000 167,000 215,000
17 279,000 283,000 375,000 343,000 393,000 313,000 272,000 163,000 124,000 138,000 167,000 218,000
18 277,000 283,000 377,000 340,000 393,000 311,000 271,000 164,000 125,000 142,000 166,000 220,000
19 274,000 283,000 379,000 341,000 395,000 307,000 269,000 163,000 123,000 143,000 167,000 227,000
20 269,000 280,000 380,000 343,000 397,000 301,000 266,000 160,000 124,000 143,000 170,000 229,000
21 269,000 277,000 383,000 343,000 398,000 295,000 259,000 161,000 127,000 143,000 169,000 231,000
22 269,000 276,000 388,000 344,000 399,000 293,000 257,000 160,000 128,000 143,000 167,000 231,000
23 271,000 272,000 386,000 346,000 398,000 293,000 253,000 158,000 128,000 143,000 167,000 230,000
24 272,000 266,000 386,000 347,000 397,000 289,000 249,000 155,000 126,000 144,000 166,000 228,000
25 273,000 263,000 387,000 345,000 396,000 285,000 246,000 152,000 126,000 145,000 166,000 228,000
26 275,000 265,000 387,000 343,000 396,000 283,000 241,000 149,000 127,000 148,000 169,000 231,000
27 276,000 268,000 384,000 340,000 395,000 280,000 236,000 147,000 127,000 150,000 173,000 233,000
28 277,000 273,000 383,000 338,000 395,000 277,000 232,000 145,000 128,000 146,000 174,000 238,000
29 275,000 246,000 384,000 334,000 393,000 272,000 228,000 142,000 128,000 143,000 175,000 239,000
30 274,000   385,000 331,000 390,000 269,000 224,000 143,000 129,000 142,000 177,000 242,000
31 275,000   385,000   386,000   219,000 144,000   142,000   246,000