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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 11466320 SANTA ROSA C A WILLOWSIDE RD NR SANTA ROSA CA


Sonoma County, California
Hydrologic Unit Code 18010110
Latitude  38°26'43", Longitude 122°48'22" NAD27
Drainage area 77.6  square miles
Gage datum 2.36 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 1998-10-01 -> 2024-09-30)

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
1 317 86 210 113 27 12 5.2 3.2 2.3 2.1 32 212
2 345 134 241 84 30 11 5 3.1 4.2 6.9 22 220
3 225 148 209 88 69 11 4.9 3.1 2.6 3.3 15 105
4 321 125 176 107 32 13 4.7 3 2.4 5.7 11 46
5 267 96 208 109 48 17 4.6 2.9 2.2 11 8.6 87
6 236 202 293 119 26 12 4.6 2.9 2.1 3.2 9.7 104
7 178 331 180 135 23 10 4.6 2.9 2.1 2.5 41 94
8 307 313 146 89 46 12 4.4 2.9 2.2 2.3 50 125
9 353 432 190 57 46 12 4.4 2.8 2.2 2.3 40 70
10 333 262 309 50 23 10 4.4 2.8 2.2 10 19 93
11 256 179 206 106 21 9.3 4.1 2.8 2.1 3.1 31 228
12 186 139 162 154 19 8.8 4 2.7 2.1 13 42 146
13 174 292 211 115 17 8.3 4 2.7 2.3 19 21 207
14 194 260 292 64 19 7.9 3.9 2.7 2.2 6.9 14 265
15 129 204 226 50 31 7.7 3.8 2.6 2.2 6.9 13 281
16 180 357 203 75 24 8.6 3.7 2.6 2.2 7.1 26 305
17 157 357 135 61 23 8 3.7 2.5 3.2 7.3 22 187
18 220 247 105 45 64 7.7 3.7 2.5 2.7 4.3 16 172
19 253 159 155 40 48 7.1 3.6 2.6 3.2 14 45 219
20 303 219 184 50 25 6.8 3.5 2.5 2.4 8.9 46 235
21 204 188 164 43 20 6.6 3.4 2.6 3.9 4.7 48 266
22 210 247 279 51 18 6.5 3.4 2.5 2.4 16 35 274
23 248 195 148 33 16 6.4 3.3 2.5 2.1 10 28 261
24 149 223 191 39 15 6.2 3.3 2.5 2 200 39 197
25 223 270 181 40 19 13 3.2 2.4 2.4 115 21 157
26 209 396 139 30 17 7.8 3.4 2.3 2.2 58 27 190
27 137 491 146 29 26 8.1 3.2 2.3 2.5 21 29 372
28 105 350 189 44 16 10 3.2 2.3 2.1 37 57 327
29 83 184 135 44 13 6.6 3.2 2.3 2 22 109 388
30 96   86 29 12 5.5 3.2 2.3 2.1 23 128 343
31 115   114   12   3.1 2.3   14   485