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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 11160500 SAN LORENZO R A BIG TREES CA


Santa Cruz County, California
Hydrologic Unit Code 18060015
Latitude  37°02'40", Longitude 122°04'17" NAD27
Drainage area 106  square miles
Gage datum 230.06 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 1936-10-01 -> 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
1 262 371 358 274 103 51 32 22 18 17 23 93
2 231 346 393 279 96 50 31 22 18 17 23 165
3 190 384 318 267 93 49 31 22 18 17 22 122
4 401 386 326 288 90 51 30 22 18 17 24 116
5 294 349 315 248 86 49 30 22 18 18 26 95
6 223 385 339 221 82 47 29 21 18 17 32 85
7 227 465 297 205 81 46 29 21 18 17 26 119
8 274 357 271 183 78 45 29 21 18 17 30 123
9 366 424 292 175 76 45 29 21 18 18 31 85
10 286 364 433 187 74 44 28 21 18 20 36 143
11 257 350 305 238 72 43 28 21 18 20 36 137
12 296 372 294 199 70 42 28 20 18 19 42 101
13 300 485 320 188 71 41 27 20 17 78 54 110
14 407 467 352 174 68 41 27 20 17 32 57 113
15 272 427 338 157 68 40 27 20 17 23 54 110
16 378 422 336 154 71 40 26 20 17 27 56 141
17 284 450 264 149 67 39 26 20 17 23 67 93
18 280 416 224 139 73 38 26 20 25 19 102 113
19 290 516 227 134 71 37 26 20 21 24 84 139
20 345 414 242 127 65 37 25 20 18 19 73 134
21 450 377 269 128 63 36 25 20 17 20 53 165
22 399 299 317 119 61 35 25 19 17 20 47 260
23 337 308 276 117 59 35 25 19 17 21 47 403
24 442 299 304 113 57 35 24 19 17 27 51 203
25 399 320 284 109 57 34 24 19 17 31 42 180
26 363 286 248 108 55 34 24 19 17 26 45 189
27 310 469 240 113 55 33 23 19 17 21 41 221
28 248 402 262 121 59 33 23 18 17 22 53 211
29 237 339 242 113 55 33 23 18 17 25 66 245
30 320   331 113 53 33 23 18 17 27 70 229
31 359   325   52   23 18   24   299