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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 06317000 POWDER RIVER AT ARVADA, WY


Sheridan County, Wyoming
Hydrologic Unit Code 10090202
Latitude  44°39'00", Longitude 106°07'37" NAD27
Drainage area 5,924  square miles
Gage datum 3,620 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 1930-10-01 -> 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 90 108 340 345 441 985 340 133 42 134 145 111
2 90 109 336 345 464 865 309 130 53 108 146 112
3 89 113 331 304 465 875 310 130 64 96 149 111
4 90 117 336 287 489 869 288 122 57 116 149 109
5 89 120 318 282 519 866 277 97 56 129 147 106
6 88 126 320 288 597 877 288 79 50 123 142 106
7 89 126 348 285 629 838 250 89 58 129 141 107
8 90 127 344 285 598 875 254 137 72 163 144 107
9 91 129 359 296 566 798 270 99 66 130 143 105
10 92 133 382 314 609 781 261 73 70 122 144 105
11 93 142 420 311 630 835 288 71 72 114 143 108
12 94 147 460 335 594 872 304 104 59 114 138 106
13 95 157 455 324 639 791 452 136 81 113 137 103
14 97 176 443 335 637 763 361 98 78 129 138 100
15 98 180 425 370 632 795 238 81 90 133 141 101
16 98 178 483 328 639 946 223 80 72 126 140 101
17 100 178 506 323 670 1,050 170 67 63 139 137 103
18 100 177 494 317 738 839 267 62 71 206 139 103
19 99 192 470 333 893 746 200 90 78 197 134 100
20 99 185 487 334 983 636 152 106 69 153 130 99
21 100 190 437 326 779 519 133 108 63 141 128 99
22 101 195 405 375 753 550 140 68 71 140 127 102
23 102 213 378 363 998 666 164 66 81 143 121 102
24 102 229 351 368 1,010 537 168 63 97 169 124 104
25 105 225 341 390 885 491 159 68 89 150 122 104
26 103 235 390 420 984 480 171 54 80 143 119 104
27 104 243 362 442 1,070 416 231 45 82 137 117 107
28 105 291 321 433 843 404 276 51 78 135 116 99
29 106 613 315 448 848 362 209 172 78 137 115 96
30 105   316 450 920 361 160 81 80 147 113 94
31 107   325   925   158 54   158   92