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USGS Surface-Water Daily Statistics for California

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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 11465350 DRY C NR MOUTH NR HEALDSBURG CA


Sonoma County, California
Hydrologic Unit Code 18010110
Latitude  38°35'15", Longitude 122°51'40" NAD27
Drainage area 217  square miles
Gage datum 55.65 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 1981-10-01 -> 2021-09-30)

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
1 130 322 394 255 115 102 100 89 91 76 100 127
2 124 331 619 246 114 103 99 89 90 77 103 141
3 156 292 591 215 110 99 99 89 89 77 99 155
4 195 313 493 194 110 99 98 89 88 77 98 127
5 192 291 466 203 107 100 99 90 88 77 103 134
6 241 421 607 232 107 97 99 90 87 77 103 159
7 243 611 585 236 109 101 96 90 86 76 107 168
8 448 418 550 209 111 100 97 90 87 76 110 136
9 399 497 595 198 106 99 93 90 88 76 108 131
10 428 440 677 183 102 98 92 91 88 77 108 165
11 339 359 626 167 101 97 93 92 86 77 109 367
12 235 431 543 179 102 98 93 92 85 77 110 211
13 268 668 572 185 103 98 97 93 84 77 110 168
14 327 861 546 173 98 102 97 92 84 79 110 156
15 352 533 475 166 100 101 96 91 84 79 111 255
16 445 409 478 164 105 103 95 91 84 79 109 238
17 504 517 479 165 109 102 95 91 84 78 112 202
18 400 448 450 168 115 99 95 91 84 80 110 184
19 336 438 395 162 124 100 95 92 83 81 132 194
20 316 544 381 147 113 101 94 93 83 81 129 178
21 237 461 367 137 109 101 92 92 83 84 123 177
22 338 391 513 134 111 103 89 91 83 85 116 163
23 253 460 371 132 107 101 89 91 82 84 117 155
24 352 411 415 127 106 99 88 91 81 86 118 147
25 342 360 380 128 106 99 88 91 77 88 117 147
26 349 804 355 128 103 100 87 91 79 87 122 143
27 343 775 381 125 103 98 87 91 79 83 124 136
28 367 423 350 122 104 99 88 90 79 88 120 137
29 353 128 333 121 103 101 89 91 79 92 121 134
30 353   290 119 99 102 89 93 78 101 125 138
31 353   274   100   89 91   100   132