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USGS Daily Statistics for the Nation

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 20 - 21 years of record in, ft3/s   (Calculation Period 1997-10-01 -> 2018-09-30)

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
1 113 106 100 187 712 1,560 796 274 191 162 155 137
2 113 104 100 188 763 1,590 753 269 189 161 153 137
3 111 104 100 186 849 1,580 708 265 187 160 151 136
4 111 103 100 186 892 1,540 694 259 185 159 150 134
5 112 103 100 189 924 1,560 654 259 184 159 149 132
6 109 103 99 198 980 1,620 619 253 183 158 149 131
7 109 103 100 212 1,020 1,550 588 249 182 157 163 131
8 109 105 100 226 1,040 1,480 561 246 180 156 207 130
9 109 105 100 237 1,040 1,400 533 242 179 156 179 128
10 109 105 101 244 1,060 1,310 502 238 180 155 167 129
11 108 105 102 246 1,030 1,230 484 234 178 155 160 130
12 107 105 104 265 1,040 1,160 469 231 178 155 155 130
13 105 105 108 296 1,130 1,210 454 230 176 154 162 129
14 105 105 110 318 1,210 1,230 441 226 174 153 159 128
15 104 105 117 325 1,190 1,250 423 222 173 152 156 126
16 105 105 145 315 1,270 1,240 410 220 172 153 155 124
17 106 104 142 312 1,370 1,280 394 217 171 154 152 122
18 106 104 140 328 1,460 1,240 381 215 170 152 151 121
19 107 103 144 349 1,560 1,190 370 212 170 152 149 122
20 109 103 147 382 1,650 1,170 359 210 170 152 149 121
21 109 103 147 445 1,630 1,130 346 208 168 152 148 121
22 108 102 148 539 1,620 1,120 337 207 167 151 146 120
23 107 102 151 629 1,640 1,120 328 206 167 151 146 118
24 107 102 151 666 1,710 1,080 319 206 166 151 145 119
25 107 102 156 698 1,750 1,020 310 202 164 150 145 119
26 107 100 160 693 1,760 974 302 199 162 148 143 118
27 106 100 161 711 1,740 925 300 197 161 148 141 117
28 106 100 166 694 1,680 889 295 195 160 148 141 117
29 106 96 166 694 1,700 870 288 193 160 149 141 118
30 105   167 708 1,670 852 282 191 160 149 138 117
31 105   177   1,610   278 190   152   115