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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
1 217 202 202 333 1,120 2,230 1,390 591 399 340 293 247
2 216 207 202 342 1,150 2,240 1,350 580 398 337 290 249
3 217 206 201 347 1,210 2,270 1,320 568 393 338 290 250
4 219 206 200 361 1,290 2,310 1,280 559 389 335 291 245
5 219 204 202 380 1,350 2,360 1,230 548 385 332 289 237
6 216 202 204 402 1,410 2,380 1,190 539 382 329 287 237
7 213 203 204 417 1,500 2,370 1,150 527 379 325 288 234
8 214 201 207 442 1,530 2,310 1,110 520 377 326 286 231
9 214 204 211 464 1,560 2,250 1,080 512 377 323 284 226
10 216 208 212 485 1,580 2,180 1,060 502 372 323 280 226
11 216 208 214 505 1,590 2,110 1,020 494 373 322 279 230
12 214 207 217 528 1,580 2,060 987 486 373 320 275 232
13 213 205 219 548 1,630 2,050 950 482 370 318 274 232
14 213 203 221 575 1,670 2,020 916 475 366 318 273 230
15 213 204 223 602 1,740 1,970 890 469 366 319 264 231
16 211 203 226 633 1,830 1,950 863 462 366 319 265 231
17 212 201 232 679 1,900 1,920 833 456 361 318 269 229
18 210 200 238 728 1,950 1,890 806 452 360 313 264 223
19 209 203 247 762 1,980 1,860 785 450 360 310 261 224
20 210 201 252 776 2,020 1,840 766 444 356 310 259 225
21 209 202 258 818 2,050 1,800 744 441 359 308 257 223
22 208 201 269 883 2,070 1,770 724 440 356 305 255 223
23 210 201 279 941 2,060 1,740 707 435 352 306 254 226
24 209 202 281 952 2,090 1,700 690 428 350 307 257 233
25 208 202 284 958 2,100 1,660 679 421 347 305 260 228
26 209 202 286 972 2,130 1,610 665 421 347 301 259 226
27 209 199 288 976 2,150 1,580 649 416 344 299 253 222
28 208 199 290 999 2,180 1,550 634 412 344 295 251 224
29 206 202 295 1,020 2,220 1,490 626 407 344 296 248 224
30 205   302 1,060 2,210 1,440 613 402 340 293 245 223
31 202   316   2,210   599 401   295   222