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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 17 - 19 years of record in, ft3/s   (Calculation Period 1999-10-01 -> 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
1 134 140 129 240 546 1,260 699 246 172 165 167 149
2 131 140 130 244 544 1,270 662 242 173 166 168 150
3 132 134 132 241 566 1,280 626 237 171 165 166 151
4 132 131 133 235 605 1,270 596 230 169 165 165 151
5 131 132 135 233 627 1,260 573 227 170 165 164 149
6 130 132 137 239 650 1,250 555 228 171 167 163 145
7 134 133 139 246 686 1,250 534 224 170 166 162 144
8 135 137 137 248 719 1,250 517 220 168 166 163 146
9 133 138 141 251 740 1,260 497 217 168 165 163 146
10 134 138 147 256 761 1,230 474 213 168 165 164 147
11 136 137 150 259 811 1,190 456 209 167 165 161 148
12 136 136 153 266 851 1,130 441 204 167 166 159 147
13 132 136 158 282 853 1,090 430 202 168 167 165 146
14 133 135 163 308 869 1,080 420 200 167 166 170 143
15 132 135 166 325 900 1,060 407 196 165 167 166 142
16 133 138 174 327 921 1,050 395 192 166 168 165 142
17 134 137 184 326 963 1,050 380 189 167 169 165 142
18 138 136 184 330 1,020 1,040 366 187 167 167 165 141
19 142 134 182 336 1,060 1,010 353 186 167 166 163 140
20 152 133 180 340 1,110 963 342 184 167 167 161 141
21 147 135 181 352 1,150 922 329 185 168 168 163 143
22 143 134 185 382 1,200 889 318 185 168 167 161 143
23 141 136 193 431 1,200 878 309 184 168 167 160 142
24 140 131 192 479 1,210 879 298 183 168 168 158 144
25 142 130 192 506 1,270 861 288 181 166 168 158 144
26 136 129 196 534 1,320 828 280 179 164 166 160 141
27 136 130 201 554 1,340 787 275 176 163 166 160 140
28 136 132 206 563 1,340 754 270 173 161 165 156 140
29 138 136 210 552 1,320 729 263 171 160 167 153 141
30 132   213 544 1,290 723 255 170 161 166 150 139
31 133   221   1,280   249 170   164   138