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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 - 22 years of record in, ft3/s   (Calculation Period 1997-10-01 -> 2019-09-30)

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 1,560 796 277 193 162 155 137
2 113 104 100 188 763 1,590 753 272 191 162 154 137
3 111 104 100 186 849 1,580 708 268 189 161 152 136
4 111 103 100 186 892 1,540 694 262 187 161 151 134
5 112 103 100 189 924 1,560 654 262 186 160 151 132
6 109 103 99 198 980 1,620 619 256 184 159 150 130
7 109 103 100 212 1,020 1,550 592 252 183 158 163 130
8 109 105 100 226 1,040 1,480 566 249 182 157 205 129
9 109 105 100 237 1,040 1,400 537 245 181 156 178 127
10 109 105 101 244 1,060 1,310 508 240 181 156 166 128
11 108 105 102 246 1,030 1,230 489 236 179 156 159 130
12 107 105 104 265 1,040 1,160 474 233 179 156 155 130
13 105 105 108 296 1,130 1,210 459 232 177 155 161 129
14 105 105 110 318 1,210 1,230 446 228 175 153 159 128
15 104 105 117 325 1,190 1,250 428 224 174 153 156 126
16 105 105 145 315 1,270 1,240 414 222 173 153 155 124
17 106 104 142 312 1,370 1,280 399 219 172 154 151 122
18 106 104 140 328 1,460 1,240 386 217 172 153 151 121
19 107 103 144 349 1,560 1,190 374 215 171 152 149 122
20 109 103 147 382 1,650 1,170 363 213 171 152 148 121
21 109 103 147 445 1,630 1,130 351 211 169 152 147 121
22 108 102 148 539 1,620 1,120 341 210 168 151 146 120
23 107 102 151 629 1,640 1,120 332 208 167 151 146 118
24 107 102 151 666 1,710 1,080 322 208 167 151 145 119
25 107 102 156 698 1,750 1,020 313 204 165 150 144 119
26 107 100 160 693 1,760 974 306 201 163 149 143 118
27 106 100 161 711 1,740 925 303 199 162 149 141 117
28 106 100 166 694 1,680 889 299 197 161 149 140 117
29 106 96 166 694 1,700 870 292 195 161 149 140 118
30 105   167 708 1,670 852 285 193 160 150 138 117
31 105   177   1,610   281 192   153   115