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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 12335100 Blackfoot R ab Nevada Cr nr Helmville MT


Powell County, Montana
Hydrologic Unit Code 17010203
Latitude  46°55'07.66", Longitude 113°00'53.95" NAD83
Drainage area 498  square miles
Gage datum 4,250 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 1999-10-01 -> 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
1 136 140 126 237 556 1,280 686 251 173 167 170 150
2 134 141 127 242 551 1,290 649 245 174 168 170 152
3 134 133 128 240 570 1,300 616 240 171 167 170 153
4 135 127 129 235 605 1,290 589 233 169 167 169 152
5 134 129 131 234 625 1,270 566 230 170 167 169 150
6 132 129 134 241 650 1,260 548 231 171 169 169 146
7 136 130 136 247 685 1,260 528 227 170 168 166 146
8 137 133 135 250 718 1,250 512 223 169 167 167 147
9 135 133 138 256 739 1,260 492 219 171 168 166 148
10 135 133 143 263 761 1,220 470 215 171 167 167 149
11 137 132 145 264 810 1,170 452 212 169 167 163 150
12 137 133 148 269 850 1,120 448 208 169 168 162 149
13 132 132 155 283 862 1,080 435 206 169 169 167 148
14 132 132 160 307 891 1,070 427 203 168 168 171 145
15 132 132 164 322 931 1,050 417 198 167 169 168 144
16 135 135 172 324 959 1,040 404 194 167 170 168 144
17 135 134 182 322 1,010 1,030 388 191 168 171 168 144
18 138 133 182 326 1,060 1,030 374 190 168 169 167 143
19 142 130 180 333 1,090 993 361 189 168 168 166 142
20 151 130 178 340 1,130 947 349 186 169 169 164 142
21 147 132 180 369 1,160 908 336 187 170 170 166 144
22 143 131 183 405 1,200 875 324 188 169 169 163 144
23 142 132 190 448 1,190 863 315 187 169 169 162 143
24 141 128 191 496 1,200 863 304 185 169 170 161 146
25 143 127 191 530 1,260 843 293 182 168 170 160 146
26 137 125 195 562 1,310 811 285 180 166 169 162 143
27 136 127 200 580 1,340 772 280 178 165 169 161 141
28 137 128 204 584 1,360 742 275 176 164 169 157 141
29 137 135 208 569 1,340 717 268 174 163 170 155 142
30 132   211 558 1,320 710 260 172 164 168 152 140
31 133   219   1,300   254 171   167   138