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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 4,070.84 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 -> 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
1 112 103 98 172 740 1,580 745 267 188 159 151 133
2 112 102 98 174 794 1,580 704 263 186 158 150 134
3 111 101 98 173 872 1,580 667 258 184 157 149 134
4 110 101 98 174 908 1,570 653 253 182 157 148 132
5 111 101 98 179 949 1,580 617 252 181 156 149 130
6 109 100 98 186 1,010 1,600 584 247 179 155 147 128
7 109 100 97 196 1,040 1,530 560 244 178 154 158 128
8 109 101 98 210 1,040 1,450 540 241 177 153 190 128
9 109 101 97 221 1,020 1,360 518 237 177 153 168 126
10 109 101 98 228 1,020 1,290 490 233 177 152 158 127
11 108 101 99 230 1,000 1,230 470 230 175 152 153 128
12 106 100 102 244 1,020 1,170 454 226 174 152 149 128
13 105 101 105 268 1,120 1,190 440 225 173 152 154 126
14 105 100 106 286 1,210 1,200 427 221 171 151 153 125
15 104 100 111 296 1,220 1,200 410 218 170 150 150 124
16 105 100 133 291 1,330 1,170 397 215 169 150 150 122
17 106 100 131 289 1,440 1,190 383 213 168 151 147 121
18 106 99 130 300 1,500 1,170 371 211 167 150 146 120
19 107 99 133 316 1,570 1,130 359 209 167 150 146 120
20 107 99 135 354 1,640 1,110 349 207 167 149 145 119
21 107 98 135 413 1,620 1,070 338 206 165 149 144 119
22 107 98 136 482 1,570 1,050 329 205 165 149 142 119
23 106 97 139 556 1,540 1,050 320 202 164 149 142 117
24 106 97 140 595 1,580 1,000 311 202 163 149 141 117
25 105 98 144 629 1,610 953 303 200 161 147 140 117
26 105 97 147 628 1,660 902 296 197 160 146 139 116
27 104 97 148 646 1,690 858 293 195 159 146 137 115
28 104 97 152 635 1,670 827 288 193 158 147 136 115
29 103 92 154 644 1,680 812 281 191 157 146 136 115
30 102   156 693 1,650 796 275 189 157 146 134 115
31 102   164   1,620   271 188   149   114