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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
1 244 837 700 244 589 415 129 58 32 56 416 166
2 188 199 258 198 1,150 195 145 21 93 7.7 83 148
3 492 231 641 179 949 716 214 45 28 46 70 405
4 261 367 473 352 319 909 53 8.1 32 156 494 272
5 152 228 246 361 236 555 276 8.2 32 120 448 176
6 170 237 181 202 200 340 60 20 172 85 222 287
7 226 227 231 91 350 550 39 38 144 91 189 251
8 155 793 243 260 480 438 30 24 84 94 104 294
9 121 454 645 199 358 242 47 4.9 85 465 131 386
10 241 176 480 237 622 320 276 29 42 50 295 406
11 245 285 332 151 659 327 118 31 18 86 87 365
12 249 851 287 414 773 407 65 6.2 51 115 73 367
13 314 322 482 367 977 312 43 358 85 468 108 332
14 149 145 379 352 308 247 44 87 40 130 106 258
15 204 299 512 101 256 129 323 21 106 254 286 496
16 92 637 385 84 518 697 332 8.5 207 446 310 778
17 181 574 470 158 833 223 145 32 247 67 255 238
18 237 236 886 281 320 287 85 33 175 49 169 218
19 448 168 767 250 274 191 75 16 31 1,110 204 210
20 231 543 1,520 362 308 294 36 5.1 59 332 145 216
21 134 608 347 347 256 249 19 20 110 50 55 337
22 235 365 247 561 178 85 27 12 249 238 146 178
23 229 435 298 377 427 168 67 6.4 274 140 209 209
24 186 429 237 641 419 257 45 3 60 208 530 301
25 353 366 550 824 593 155 17 1.7 105 73 501 141
26 280 500 188 764 404 215 187 2 84 277 392 478
27 113 316 421 337 278 193 64 32 191 329 912 757
28 117 458 346 569 319 148 28 25 55 410 432 288
29 520 41 378 1,150 365 144 91 20 124 344 214 234
30 385   554 901 559 109 30 40 15 252 188 180
31 569   327   695   114 90   691   505