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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 09224700 BLACKS FORK NEAR LITTLE AMERICA, WY


Sweetwater County, Wyoming
Hydrologic Unit Code 14040107
Latitude  41°32'46", Longitude 109°41'34" NAD27
Drainage area 2,981  square miles
Gage datum 6,127.66 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 1961-10-01 -> 2024-09-30)

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 59 75 185 357 562 1,050 467 148 54 99 98 78
2 59 77 195 365 577 1,050 448 144 57 87 98 78
3 59 78 195 371 587 1,080 446 132 61 84 97 77
4 59 78 196 391 604 1,070 430 139 90 84 101 75
5 60 82 198 396 626 1,040 410 123 87 86 102 73
6 61 83 196 373 651 1,050 391 127 76 85 102 72
7 62 83 203 383 683 1,100 370 120 76 91 102 72
8 63 86 216 394 718 1,140 360 109 70 88 102 71
9 62 85 238 388 738 1,140 351 94 69 84 100 71
10 62 81 272 391 781 1,190 342 87 67 84 101 70
11 61 87 333 418 801 1,200 324 84 65 83 103 68
12 60 102 469 444 807 1,200 317 82 70 86 104 67
13 60 116 494 439 810 1,220 301 80 95 87 108 67
14 61 125 428 440 836 1,160 292 81 81 88 106 67
15 62 126 394 418 865 1,070 283 78 75 87 101 67
16 62 122 397 420 852 980 255 72 73 88 99 66
17 63 132 415 427 849 945 240 75 70 91 97 65
18 65 140 401 427 880 944 229 80 70 93 95 63
19 69 133 385 435 903 964 212 75 71 92 95 63
20 79 126 370 445 937 900 273 78 72 92 92 62
21 77 128 382 457 966 843 241 89 72 92 88 61
22 75 135 386 481 992 803 212 84 74 94 87 60
23 74 136 389 507 1,020 766 202 81 74 94 90 60
24 73 147 399 507 1,020 731 200 81 78 91 87 63
25 72 149 385 519 1,010 707 194 75 81 90 85 66
26 72 144 371 544 1,030 654 198 68 83 89 83 63
27 72 154 364 544 1,020 608 183 66 84 89 81 61
28 73 165 375 542 1,010 571 194 66 122 94 80 60
29 73 232 339 549 1,010 529 170 60 151 94 80 59
30 74   329 550 1,050 490 156 56 125 94 80 59
31 74   330   1,080   153 54   97   60