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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 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 -> 2023-09-30)

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 -11 34 172 39 22 -4.9 66 119
2 421 494 35 155 5 55 315 83 24 -8 59 72
3 397 494 24 71 7.8 172 186 339 90 3.4 31 58
4 319 498 14 63 11 254 34 727 182 3.4 18 71
5 239 484 10 168 9.5 87 6.7 776 161 -11 53 50
6 156 441 8.9 508 61 25 9.9 658 78 -6.7 152 52
7 84 372 15 337 53 28 8.2 484 31 -3.3 97 124
8 80 323 16 136 16 16 5.2 280 34 -4.5 46 136
9 223 346 15 50 19 -0.81 3.9 102 0.46 -0.65 32 115
10 288 377 5.8 39 12 1.7 7.2 99 -1.1 -5 18 60
11 193 323 10 35 2.2 -0.23 55 473 -2.4 0.85 19 163
12 106 251 46 35 -6.6 9.2 109 545 5.1 -8.1 23 371
13 57 177 80 59 26 8.7 27 414 3.7 0.05 24 354
14 45 102 61 572 283 7.9 14 312 3.6 8.5 22 276
15 45 73 103 768 197 2.2 8.9 118 -4 57 104 212
16 30 103 174 682 35 -0.43 2.7 23 -5.4 51 194 147
17 31 354 209 503 11 -0.52 -8.1 14 -28 49 109 64
18 36 421 448 308 17 -5.2 4.4 17 1.3 57 97 41
19 66 353 456 154 12 -3 3.1 22 8.9 56 102 181
20 76 230 418 71 7.8 -0.48 3.2 4.2 6.6 43 52 399
21 148 120 350 48 3.8 -2.3 1.3 73 0.8 39 24 431
22 382 65 254 38 -4.4 -2.9 64 82 -4.2 34 24 352
23 375 51 356 20 20 -13 346 63 -1.6 34 17 251
24 317 40 250 18 81 1 379 323 -3.5 33 6.1 166
25 529 123 115 5.9 286 -1.5 229 324 -6.5 35 17 90
26 645 153 54 23 511 1.6 112 456 -7 45 102 54
27 550 92 38 13 253 5 63 545 8.9 42 301 43
28 462 54 86 20 54 -2.1 78 382 14 91 236 48
29 455   157 19 26 5.5 88 195 5.8 74 127 97
30 529   89 10 28 18 144 75 -0.6 110 80 289
31 513   234   30   103 33   82   494