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USGS Daily Statistics for Wyoming

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Questions or concerns about USGS data and data products in Wyoming and Montana can be directed to the Wyoming-Montana Water Science Center Data Management Section.


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 13023000 GREYS RIVER ABOVE RESERVOIR, NEAR ALPINE, WY


Lincoln County, Wyoming
Hydrologic Unit Code 17040103
Latitude  43°08'35", Longitude 110°58'37" NAD83
Drainage area 448  square miles
Gage datum 5,729 feet above NGVD29
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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 1936-10-01 -> 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
1 217 202 201 333 1,120 2,230 1,380 588 397 340 293 247
2 216 206 202 342 1,150 2,240 1,340 577 397 337 290 249
3 217 206 201 347 1,210 2,270 1,310 565 393 338 290 250
4 219 206 200 360 1,290 2,300 1,270 556 389 335 290 244
5 219 204 202 379 1,350 2,350 1,230 545 385 332 289 237
6 216 203 204 401 1,420 2,380 1,180 537 382 329 287 237
7 212 203 204 416 1,500 2,360 1,140 525 379 325 287 234
8 213 201 206 441 1,530 2,300 1,110 517 377 326 285 231
9 214 204 211 465 1,560 2,240 1,070 510 377 323 284 226
10 215 208 212 487 1,580 2,180 1,050 500 372 323 280 227
11 216 208 213 508 1,600 2,110 1,010 492 373 322 278 230
12 214 206 217 532 1,600 2,050 981 485 373 320 275 232
13 212 205 219 552 1,640 2,040 944 480 370 318 274 232
14 212 203 221 578 1,670 2,020 911 473 366 318 273 230
15 212 204 223 605 1,740 1,970 886 467 366 319 263 231
16 211 203 225 637 1,830 1,940 858 461 366 319 265 231
17 211 201 232 683 1,890 1,910 828 454 361 318 268 229
18 210 200 237 729 1,950 1,880 802 451 360 313 264 223
19 209 202 246 761 1,980 1,850 781 448 360 310 261 224
20 210 201 251 775 2,010 1,830 762 443 356 310 259 225
21 208 202 257 817 2,040 1,790 740 439 359 308 257 223
22 207 201 267 881 2,060 1,760 720 438 356 305 255 223
23 209 201 277 939 2,060 1,730 704 434 352 306 254 226
24 208 202 280 951 2,090 1,690 687 426 350 307 256 232
25 207 202 283 957 2,100 1,650 676 419 347 304 259 227
26 208 202 286 973 2,130 1,600 662 420 347 301 259 226
27 208 199 288 978 2,150 1,570 646 415 344 298 253 222
28 207 198 291 1,000 2,180 1,540 632 411 344 295 250 224
29 206 202 296 1,020 2,220 1,480 624 405 344 295 248 224
30 204   303 1,070 2,210 1,430 610 401 340 292 246 223
31 201   317   2,210   596 399   295   222