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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 water year of record in, ft3/s   (Calculation Period 1997-10-01 -> 2021-09-30)

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
1 113 105 100 180 747 1,640 784 275 191 161 154 136
2 112 105 100 181 784 1,630 740 270 189 160 153 136
3 111 104 99 179 865 1,620 697 265 187 159 151 135
4 111 103 99 178 898 1,570 681 260 184 159 151 133
5 112 103 99 183 924 1,570 642 259 184 158 150 131
6 109 103 99 191 978 1,610 608 254 182 158 149 130
7 109 103 99 204 1,010 1,560 582 250 181 157 162 129
8 109 104 100 219 1,030 1,490 557 247 180 156 202 128
9 109 104 99 230 1,030 1,390 529 243 180 156 176 127
10 109 105 100 237 1,050 1,290 501 238 180 155 165 128
11 108 104 101 239 1,030 1,220 483 235 178 155 158 129
12 107 104 103 256 1,050 1,160 467 232 177 155 154 129
13 105 104 107 283 1,160 1,200 453 230 175 154 160 128
14 105 104 109 303 1,240 1,230 441 226 173 153 158 127
15 104 104 114 309 1,240 1,230 423 223 172 152 154 125
16 105 104 140 300 1,330 1,210 410 220 171 153 154 123
17 105 104 137 297 1,410 1,250 395 218 170 153 151 122
18 106 103 135 312 1,490 1,210 382 215 170 152 150 121
19 107 103 139 332 1,590 1,160 370 213 169 152 148 121
20 108 102 142 377 1,710 1,140 360 211 169 151 148 120
21 108 102 141 447 1,700 1,100 348 210 167 151 147 120
22 108 102 143 529 1,640 1,090 338 208 166 151 145 120
23 107 102 145 617 1,620 1,090 330 206 166 151 145 117
24 107 101 146 663 1,670 1,040 321 206 165 151 144 119
25 107 101 150 701 1,710 994 311 202 163 150 143 118
26 107 100 154 697 1,740 945 304 200 162 149 142 117
27 106 99 155 715 1,760 899 301 198 161 149 140 116
28 106 99 159 696 1,710 863 297 195 160 149 139 117
29 106 95 159 696 1,720 850 290 193 159 149 139 117
30 105   161 727 1,710 838 283 191 159 149 136 117
31 104   170   1,690   279 190   152   115