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USGS Daily Statistics for Montana

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Questions or concerns about USGS streamflow data in Montana and Wyoming can be directed to Kirk Miller (kmiller@usgs.gov; 307-775-9168).

Updated June 11, 2020 - USGS water-resources monitoring activities will be restored at the following sites:
  • 12323600 Silver Bow Creek at Opportunity, Montana (POR: 31 years)
  • 12323750 Silver Bow Creek at Warm Springs, Montana (POR: 35 years)

Updated May 12, 2020 - USGS water-resources monitoring activities were suspended effective June 1, 2020 at the following site:
  • 06088500 Muddy Creek near Vaughn, Montana (POR: 82 years)
USGS monitoring activities at this site was funded by our partner and USGS Cooperative Matching Funds (06088500). Lack of partner funding for this site resulted in suspension of all USGS monitoring activities. Efforts are ongoing to secure funding for future monitoring. Historical data will continue to be available from USGS.

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 12338300 NF Blackfoot R ab Dry Gulch nr Ovando MT


Powell County, Montana
Hydrologic Unit Code 17010203
Latitude  46°58'46.18", Longitude 113°05'31.87" NAD83
Drainage area 310  square miles
Gage datum 4,060 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 1997-10-01 -> 2020-09-30)

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
1 113 105 100 184 704 1,570 776 274 191 161 154 136
2 112 105 100 185 751 1,600 735 269 189 161 153 136
3 111 104 99 183 831 1,600 693 265 187 160 151 135
4 111 103 99 183 874 1,560 680 259 185 160 151 133
5 112 103 99 187 908 1,570 640 259 184 159 150 131
6 109 103 99 196 962 1,610 606 253 182 158 149 130
7 109 103 99 209 1,000 1,540 581 249 181 157 162 129
8 109 104 100 224 1,020 1,470 555 246 180 156 202 128
9 109 104 100 235 1,030 1,380 528 242 180 156 176 127
10 109 105 101 242 1,050 1,290 499 238 180 155 165 128
11 108 104 101 244 1,030 1,210 481 234 178 155 158 129
12 107 104 104 262 1,050 1,150 466 231 177 155 154 129
13 105 104 107 291 1,170 1,190 452 230 175 154 160 128
14 105 104 110 312 1,260 1,220 440 226 173 153 158 127
15 104 104 116 318 1,250 1,230 422 222 172 152 154 125
16 105 104 142 308 1,350 1,210 409 220 172 153 154 123
17 105 104 140 306 1,420 1,260 394 217 170 153 151 122
18 106 103 138 321 1,490 1,220 381 215 170 152 150 121
19 107 103 141 341 1,560 1,160 370 213 170 152 148 121
20 108 102 144 389 1,630 1,140 359 210 169 151 148 120
21 108 102 144 462 1,610 1,100 347 209 168 151 147 120
22 108 102 146 547 1,590 1,090 337 208 166 151 145 120
23 107 102 148 636 1,600 1,100 328 206 166 151 145 117
24 107 101 149 679 1,680 1,050 319 205 165 151 144 119
25 107 101 153 716 1,720 997 310 202 164 150 143 118
26 107 100 157 708 1,740 949 303 199 162 149 142 117
27 106 99 158 719 1,740 902 300 197 161 149 140 116
28 106 99 162 698 1,680 867 296 195 160 149 139 117
29 106 95 163 692 1,700 848 289 193 160 149 139 117
30 105   164 703 1,670 830 282 191 160 149 136 117
31 104   173   1,620   278 190   152   115