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USGS 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 -> 2020-09-30)

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
1 128 328 414 264 116 103 100 88 91 75 99 117
2 122 340 657 253 115 103 99 88 89 75 102 122
3 158 298 625 221 111 100 98 88 89 76 98 155
4 199 320 520 198 111 100 98 89 88 76 97 127
5 197 297 498 207 108 101 99 89 87 76 102 135
6 251 436 656 237 109 98 99 89 87 75 102 153
7 254 637 632 241 111 102 96 89 86 74 106 129
8 478 435 582 213 112 101 97 89 87 75 109 125
9 425 519 627 201 107 100 93 89 87 74 107 127
10 458 461 721 186 103 99 92 91 87 75 106 164
11 361 373 665 169 101 98 92 91 85 75 107 384
12 247 451 574 183 102 99 93 91 84 75 108 214
13 275 709 610 188 103 99 96 93 83 75 108 167
14 337 917 585 176 99 102 97 92 83 79 108 155
15 364 562 505 168 101 101 95 91 83 78 109 263
16 445 429 507 166 106 104 95 91 83 78 107 245
17 512 547 509 167 110 102 95 91 83 78 110 206
18 410 471 475 171 116 100 94 91 83 79 108 182
19 342 462 416 165 126 100 94 91 83 80 133 192
20 321 576 402 149 114 102 93 92 82 80 130 177
21 233 485 387 139 110 101 91 91 82 83 123 177
22 343 411 543 136 112 103 88 91 82 85 117 160
23 253 485 389 134 108 101 88 91 81 84 117 151
24 360 431 436 129 107 99 87 90 80 86 118 145
25 351 376 398 129 106 99 87 90 77 88 117 143
26 358 850 372 130 104 100 86 91 78 87 122 141
27 354 819 401 127 104 98 86 90 78 82 124 135
28 379 443 365 124 105 99 87 90 78 87 120 136
29 362 132 348 122 104 101 88 90 78 90 121 130
30 361   301 120 99 102 88 92 77 100 125 134
31 363   284   101   89 91   99   128