Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins

USGS Daily Statistics for Hawaii

Click to hide state-specific text

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 16704000 Wailuku River at Piihonua, HI


Hawaii County, Hawaii
Hydrologic Unit Code 20010000
Latitude  19°42'43.7", Longitude 155°09'02.7" NAD83
Drainage area 220  square miles
Contributing drainage area 148.6  square miles
Gage datum 1,090 feet above LMSL
Output formats
HTML table of all data
Tab-separated data
Reselect output format

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 1927-10-01 -> 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
1 211 259 606 344 298 118 151 311 218 163 233 437
2 215 332 482 305 252 112 129 338 168 168 292 615
3 236 297 406 351 259 103 105 228 148 200 168 350
4 243 224 294 280 266 110 135 269 159 168 232 275
5 299 165 290 265 222 107 142 223 130 151 180 264
6 248 138 424 266 252 108 214 204 226 138 214 291
7 397 151 364 249 267 100 207 309 117 148 194 254
8 465 116 452 342 231 102 173 384 96 136 185 243
9 301 138 468 410 207 81 150 310 85 146 264 369
10 341 181 384 532 230 82 133 358 101 131 298 418
11 404 162 302 487 232 81 110 300 114 132 496 409
12 339 182 343 390 234 90 115 380 117 243 469 296
13 255 208 453 363 245 94 166 233 125 122 371 464
14 221 232 505 340 225 109 198 242 133 98 280 480
15 302 357 368 354 209 97 161 266 172 159 376 300
16 331 274 269 410 155 97 229 209 195 154 430 249
17 201 378 431 416 145 109 259 311 216 169 484 237
18 209 466 353 425 159 99 223 200 202 191 614 355
19 285 363 363 387 167 117 206 178 197 195 429 340
20 228 376 266 336 174 93 253 193 177 146 777 373
21 165 320 271 273 179 87 331 153 195 125 432 340
22 194 289 309 319 139 102 356 182 118 165 443 412
23 191 288 390 366 193 104 214 531 146 180 401 283
24 185 365 478 384 197 130 209 518 148 177 324 235
25 245 403 324 314 240 154 199 545 119 138 298 397
26 416 382 341 286 206 163 176 291 176 144 401 416
27 245 444 328 280 148 138 173 183 205 208 323 243
28 217 504 287 254 160 132 147 167 154 221 307 228
29 246 499 255 317 148 151 171 145 151 199 341 237
30 282   347 322 124 219 203 192 260 213 417 378
31 336   363   117   181 214   285   261