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USGS Daily Statistics for Texas

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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 07343000 N Sulphur Rv nr Cooper, TX


Lamar County, Texas
Hydrologic Unit Code 11140301
Latitude  33°28'29", Longitude  95°35'15" NAD27
Drainage area 276  square miles
Contributing drainage area 276  square miles
Gage datum 372.22 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 1949-10-01 -> 2025-09-30)

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
1 241 830 700 244 589 415 129 58 32 56 411 164
2 185 199 258 198 1,150 195 145 21 93 7.7 82 146
3 485 229 641 179 949 716 214 45 28 46 69 399
4 258 363 473 352 319 909 53 8.1 32 156 487 269
5 150 226 246 361 236 555 276 8.2 32 120 442 173
6 168 234 181 202 200 340 60 20 172 85 219 283
7 223 225 231 91 350 550 39 38 144 91 187 248
8 153 783 243 260 480 438 30 24 84 94 102 290
9 120 449 645 199 358 242 47 4.9 85 465 129 381
10 239 174 480 237 622 320 276 29 42 50 291 401
11 244 290 332 151 659 327 118 31 18 86 86 360
12 251 883 287 414 773 407 65 6.2 51 115 72 362
13 317 326 482 367 977 312 43 358 85 468 106 328
14 150 146 379 352 308 247 44 87 40 130 104 255
15 202 298 512 101 256 129 323 21 106 254 282 490
16 91 631 385 84 518 697 332 8.5 207 446 305 768
17 179 568 470 158 833 223 145 32 247 67 251 235
18 234 234 886 281 320 287 85 33 175 49 167 215
19 443 167 767 250 274 191 75 16 31 1,110 201 207
20 228 537 1,520 362 308 294 36 5.1 59 332 143 213
21 133 601 347 347 256 249 19 20 110 50 54 333
22 232 360 247 561 178 85 27 12 249 234 144 176
23 226 430 298 377 427 168 67 6.4 274 138 207 206
24 184 424 237 641 419 257 45 3 60 205 523 297
25 348 366 550 824 593 155 17 1.7 105 72 494 139
26 277 500 188 764 404 215 187 2 84 273 387 475
27 112 316 421 337 278 193 64 32 191 324 900 754
28 115 458 346 569 319 148 28 25 55 405 426 297
29 513 41 378 1,150 365 144 91 20 124 340 212 237
30 747   554 901 559 109 30 40 15 249 186 180
31 585   327   695   114 90   682   499