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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 13073000 PORTNEUF RIVER AT TOPAZ ID


Bannock County, Idaho
Hydrologic Unit Code 17040208
Latitude  42°37'29", Longitude 112°05'17" NAD83
Drainage area 576  square miles
Gage datum 4,921.77 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 1912-10-01 -> 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
1 142 169 169 235 298 325 212 180 156 127 139 146
2 142 160 169 241 299 321 210 179 155 127 140 147
3 142 151 170 241 301 315 207 178 153 127 141 147
4 141 148 171 237 305 311 206 177 151 126 142 146
5 142 146 174 240 311 307 210 176 151 126 142 145
6 140 147 175 246 316 302 207 174 150 126 143 145
7 140 147 174 243 323 300 205 172 149 127 143 145
8 144 147 177 249 329 296 207 171 150 127 143 144
9 145 148 177 250 333 293 203 171 149 128 143 144
10 143 156 179 247 334 289 203 169 147 129 143 144
11 143 167 183 243 332 283 202 170 145 129 144 144
12 143 181 184 244 334 276 200 169 143 130 144 144
13 145 167 187 245 336 269 199 169 141 130 144 144
14 146 167 187 249 341 265 197 169 138 130 144 144
15 146 161 191 252 346 259 194 167 136 130 144 143
16 144 161 191 257 351 255 193 167 134 130 144 142
17 145 159 195 258 359 253 194 165 130 131 145 142
18 145 162 198 260 363 250 193 164 129 131 146 140
19 146 166 202 260 364 247 191 164 128 132 147 140
20 148 168 203 262 362 242 191 164 128 133 147 141
21 152 169 206 265 361 237 190 163 128 133 147 142
22 153 171 210 267 361 234 189 162 127 133 146 145
23 150 166 218 272 358 230 190 162 128 134 146 153
24 146 168 222 275 355 227 187 161 128 135 146 150
25 146 170 221 277 351 224 186 160 128 135 146 146
26 145 171 221 280 349 223 186 160 128 136 147 143
27 146 171 223 283 349 221 184 158 128 136 146 143
28 144 168 227 290 343 218 182 156 127 136 146 144
29 143 171 226 293 341 216 183 157 127 137 145 144
30 147   228 296 337 214 183 157 127 137 146 143
31 152   231   333   181 157   138   142