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USGS Daily Statistics for Louisiana

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 07381427 Bayou Grosse Tete S. of I10 at Grosse Tete, LA


Iberville Parish, Louisiana
Hydrologic Unit Code 08070300
Latitude  30°24'53.0", Longitude  91°25'55.5" NAD83
Gage datum -3.2 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 2021-10-01 -> 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
1 464 505 46 257 5.4 22 82 20 4.6 -5.5 66 119
2 421 494 35 155 9.5 28 159 40 10 -7.6 59 72
3 397 494 24 71 6.8 82 92 170 42 -1.3 31 58
4 319 498 14 36 15 126 17 363 100 -2 18 71
5 239 484 10 97 146 45 0.77 386 76 -8.3 53 50
6 156 441 8.9 303 330 14 3.8 330 38 0.5 152 52
7 84 372 15 487 482 11 4.5 240 13 3.5 97 124
8 80 323 16 628 474 5.3 4.2 134 23 1.6 46 136
9 223 346 15 585 465 3.5 1.1 47 -0.96 -3.9 32 115
10 288 377 5.8 560 462 5.7 6.8 45 -0.72 -6.4 18 60
11 193 323 10 528 417 2.8 28 235 4.1 0.82 19 163
12 106 251 46 502 355 6.6 55 270 2 -4.3 23 371
13 57 177 80 490 278 3.3 10 197 -0.77 -6.1 24 354
14 45 102 61 711 299 -2.1 5.2 162 0.54 2.3 22 276
15 45 73 103 776 198 -0.38 1.1 67 -2.7 42 104 212
16 30 103 174 741 182 -0.95 -3.1 14 -0.18 41 194 147
17 31 354 209 649 121 -0.81 2.5 1.5 -11 33 109 64
18 36 421 448 505 65 -4 9.6 7.7 0.53 35 97 41
19 66 353 456 362 35 -0.69 1.7 10 -2 34 102 181
20 76 230 418 261 22 -2.2 1.1 -1.8 -1.5 25 52 399
21 148 120 350 184 27 13 -24 32 -3.5 23 24 431
22 382 65 254 158 18 13 36 30 -5.9 23 24 352
23 375 51 356 101 19 -5.9 182 28 -7.5 21 17 251
24 317 40 250 47 49 3.8 197 163 -3.1 33 6.1 166
25 529 123 115 26 148 0.09 118 159 -2.2 35 17 90
26 645 153 54 32 256 6.8 59 227 -4 45 102 54
27 550 92 38 91 129 6.2 28 271 2.7 42 301 43
28 462 54 86 160 30 2.7 35 191 6.4 91 236 48
29 455   157 71 12 9.6 38 97 -1.4 74 127 97
30 529   89 29 3.1 5.1 63 33 -4.3 110 80 289
31 513   234   20   58 17   82   494