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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 11467510 SF GUALALA R NR THE SEA RANCH CA


Sonoma County, California
Hydrologic Unit Code 18010109
Latitude  38°42'33", Longitude 123°25'32" NAD27
Drainage area 161  square miles
Gage datum 40.0 feet above NGVD29
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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 1990-10-01 -> 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
1 205 520 510 527 106 45 14 4.7 1.9 1.4 92 299
2 216 779 783 493 102 42 13 4.6 1.8 1.4 56 709
3 316 928 815 419 125 40 13 4.4 1.8 1.6 38 495
4 1,380 769 807 408 115 44 12 4.3 1.8 3.1 48 291
5 777 651 612 449 341 54 11 4.1 1.8 8.7 23 245
6 779 707 1,180 727 149 42 11 4 1.7 6.2 19 364
7 676 1,420 940 739 115 37 11 3.9 1.6 3.9 74 326
8 1,150 1,360 513 430 95 35 10 3.8 1.6 3 46 250
9 1,170 1,650 407 341 85 33 10 3.7 1.6 2.6 32 216
10 1,250 932 746 280 79 30 9.7 3.7 1.6 4.3 28 461
11 840 485 657 374 74 28 9.3 3.5 1.5 11 23 1,200
12 523 378 698 611 69 26 8.9 3.5 1.6 6.9 20 363
13 516 814 914 483 64 25 8.6 3.4 1.5 11 18 273
14 362 1,290 878 331 60 24 8.2 3.2 1.6 20 17 233
15 327 838 676 261 68 23 7.9 3.1 1.5 7.3 16 858
16 739 994 790 232 238 22 7.5 2.9 1.6 7 31 720
17 1,100 825 635 204 219 21 7.2 2.8 1.6 7.3 29 585
18 1,350 689 479 193 172 21 7 2.7 1.5 7.3 28 740
19 1,240 510 427 170 238 20 6.9 2.7 1.7 8.9 159 811
20 1,550 725 793 177 142 19 6.8 2.6 1.8 13 149 899
21 1,340 553 532 155 125 18 6.5 2.6 1.9 8.7 173 1,460
22 1,390 860 663 143 103 17 6.4 2.6 1.8 5.8 89 1,240
23 1,200 709 624 133 84 16 6 2.5 1.7 7.4 92 1,100
24 618 866 1,010 123 72 16 5.8 2.4 1.6 308 133 542
25 1,160 825 727 116 68 16 5.5 2.3 1.6 107 66 534
26 1,350 2,400 705 111 72 17 5.2 2.2 1.5 40 103 459
27 747 1,870 1,150 189 69 17 5.4 2.1 1.4 23 166 360
28 495 717 896 167 67 16 5.3 2 1.4 52 150 397
29 418 245 648 136 58 17 5.2 1.9 1.4 137 239 808
30 383   453 118 52 15 5 1.9 1.4 123 830 323
31 624   491   49   4.8 1.9   78   224