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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 07380401 Bayou Lafourche SW of Donaldsonville, LA


Ascension Parish, Louisiana
Hydrologic Unit Code 08070204
Latitude  30°05'47", Longitude  91°00'21" NAD27
Gage datum -0.82 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 2000-10-01 -> 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
1 268 284 290 311 319 292 304 306 276 272 271 300
2 279 285 300 314 310 296 313 307 280 274 278 292
3 280 300 290 313 300 302 303 310 290 272 282 300
4 273 295 293 300 294 294 299 308 297 273 285 297
5 282 289 297 299 312 270 299 310 294 279 283 289
6 279 297 300 307 312 279 295 312 307 273 280 295
7 275 292 300 310 311 284 298 310 314 274 281 301
8 280 299 307 304 313 292 295 309 318 281 273 299
9 268 294 306 308 312 292 298 306 322 278 286 294
10 271 287 302 291 279 292 293 295 324 275 289 286
11 273 284 297 298 280 283 301 301 321 286 286 292
12 286 276 302 305 283 271 302 292 309 287 285 288
13 282 293 297 294 300 284 300 287 293 284 296 290
14 284 293 296 256 304 301 295 280 300 283 283 291
15 280 293 296 268 285 301 289 301 288 282 275 288
16 275 295 301 276 311 305 308 300 296 276 283 293
17 270 294 306 287 313 304 310 299 295 281 282 288
18 273 289 307 288 297 307 310 301 296 283 273 294
19 283 284 307 299 297 304 299 289 303 278 273 287
20 280 284 314 312 287 296 294 280 300 269 274 274
21 284 283 308 312 281 293 287 283 295 271 271 275
22 285 288 303 313 286 298 290 295 297 278 272 270
23 279 288 295 307 287 302 291 293 295 279 273 269
24 276 288 289 305 296 306 297 289 288 283 274 269
25 273 283 286 300 301 303 304 280 302 275 279 280
26 283 289 299 307 299 306 305 291 287 274 281 283
27 276 287 298 310 301 312 285 292 287 283 276 280
28 279 285 294 316 296 306 292 283 283 280 282 262
29 285 313 297 321 290 298 296 281 277 282 281 272
30 288   305 324 289 296 297 263 285 280 291 279
31 286   312   290   307 281   267   270