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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 06635000 MEDICINE BOW R AB SEMINOE RESERVOIR, NR HANNA, WY


Carbon County, Wyoming
Hydrologic Unit Code 10180004
Latitude  42°00'35", Longitude 106°30'45" NAD27
Drainage area 2,338  square miles
Contributing drainage area 2,153  square miles
Gage datum 6,415.4 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 1938-10-01 -> 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 32 35 58 226 407 671 365 93 27 30 49 43
2 32 35 61 223 399 678 338 95 24 31 48 43
3 32 35 62 222 396 681 310 81 22 31 48 42
4 31 35 62 224 389 699 283 74 20 32 49 41
5 31 36 64 233 405 718 262 68 19 37 49 40
6 31 37 67 247 442 734 243 67 19 41 49 40
7 32 37 68 248 447 750 223 58 19 41 50 40
8 32 38 72 257 464 762 212 52 18 36 51 39
9 32 39 77 257 476 769 196 51 19 36 53 39
10 32 43 84 259 491 769 185 47 21 38 51 38
11 33 49 92 260 515 767 176 45 31 37 50 39
12 32 58 95 261 523 780 176 46 35 37 50 39
13 32 77 100 265 513 775 161 43 34 38 52 38
14 32 60 109 292 514 765 155 42 35 39 51 37
15 32 50 112 300 508 740 146 41 29 40 50 37
16 32 47 119 310 522 724 138 40 26 41 48 36
17 32 46 124 321 539 702 128 38 25 42 48 36
18 31 46 130 337 577 686 117 38 25 42 49 36
19 32 46 140 343 571 654 110 42 25 43 48 36
20 32 48 151 352 587 627 108 41 24 43 47 36
21 32 49 163 353 608 615 115 48 25 44 46 35
22 32 48 179 355 613 586 111 38 26 45 46 35
23 32 48 185 378 625 559 112 44 26 45 47 34
24 33 51 186 378 641 544 108 44 27 45 46 33
25 34 53 210 397 643 513 114 35 29 45 46 33
26 34 56 217 410 646 490 109 30 28 45 45 33
27 33 61 232 391 645 458 121 28 27 45 44 32
28 34 58 257 384 643 439 107 29 28 46 43 32
29 34 53 256 389 649 413 103 27 31 45 43 33
30 34   233 401 654 389 100 26 31 46 44 32
31 35   221   669   97 24   48   32