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USGS Daily Statistics for Montana

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Questions or concerns about USGS data and data products in Montana and Wyoming 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 06073500 Dearborn River near Craig MT


Lewis And Clark County, Montana
Hydrologic Unit Code 10030102
Latitude  47°11'56.49", Longitude 112°05'45.26" NAD83
Drainage area 322  square miles
Gage datum 3,800 feet above NAVD88
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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 1945-10-01 -> 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 57 52 59 127 404 823 343 83 50 58 75 69
2 57 51 59 128 407 798 324 80 49 59 75 69
3 56 51 58 129 421 815 310 78 48 61 75 68
4 55 55 57 126 436 888 293 76 47 61 75 67
5 54 62 59 135 448 854 278 75 49 62 74 64
6 55 63 65 151 488 809 262 74 49 62 73 62
7 57 66 63 164 560 780 248 75 49 62 73 61
8 64 60 60 168 579 828 233 72 50 62 76 61
9 62 62 62 171 571 920 222 70 50 63 76 62
10 60 58 67 179 595 871 219 68 50 64 74 64
11 57 56 68 186 606 797 208 67 49 64 72 63
12 56 56 73 187 597 806 200 66 50 65 71 63
13 55 58 89 188 609 803 193 64 49 65 70 63
14 53 58 82 196 611 751 184 63 48 66 69 62
15 53 57 86 204 618 702 172 62 49 67 69 61
16 52 59 91 211 643 707 164 62 51 67 68 60
17 53 60 91 218 687 746 156 64 51 68 68 59
18 53 59 93 229 723 718 147 61 51 68 68 58
19 53 58 96 237 726 770 143 59 51 68 68 58
20 52 58 98 261 778 708 139 57 53 69 69 58
21 52 58 99 280 847 599 132 57 55 69 68 60
22 52 57 109 298 812 542 125 55 57 71 67 64
23 51 56 107 313 790 503 120 55 58 71 67 65
24 52 56 103 326 805 471 115 59 58 70 70 66
25 52 55 107 332 919 443 110 57 57 70 71 66
26 51 56 111 332 926 419 108 54 58 73 70 63
27 51 56 109 338 937 406 108 52 57 74 69 60
28 49 57 113 355 890 385 101 52 58 75 68 58
29 49 56 113 375 904 375 96 53 57 75 67 58
30 51   112 395 905 367 91 53 57 74 69 56
31 52   126   851   87 51   74   57