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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 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 -> 2019-09-30)

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
1 221 569 589 608 121 50 16 5.0 1.8 1.3 106 331
2 236 794 907 569 116 47 15 4.9 1.7 1.3 64 755
3 355 1,020 945 483 143 45 15 4.8 1.7 1.5 43 548
4 1,590 855 936 470 131 49 14 4.6 1.7 3.3 55 326
5 868 727 709 506 396 61 13 4.4 1.7 9.7 26 277
6 888 798 1,370 829 171 48 13 4.3 1.6 6.9 22 412
7 771 1,640 1,090 851 132 42 12 4.2 1.5 4.2 85 229
8 1,330 1,560 592 492 109 39 12 4.1 1.5 3.2 53 211
9 1,340 1,910 467 390 97 37 11 4.0 1.5 2.8 36 216
10 1,440 1,070 852 320 90 34 11 4.0 1.5 4.7 32 513
11 961 552 747 430 84 31 11 3.9 1.4 12 27 1,360
12 594 421 799 707 76 30 10 3.8 1.5 7.7 23 395
13 586 930 1,050 558 70 28 9.8 3.7 1.5 13 20 293
14 395 1,480 1,010 381 66 27 9.4 3.5 1.5 23 19 243
15 357 959 752 300 77 25 9.0 3.4 1.5 8.1 18 970
16 647 1,140 897 266 276 24 8.5 3.2 1.5 7.9 35 816
17 1,170 946 722 233 251 24 8.2 3.1 1.5 8.1 34 658
18 1,520 789 540 220 187 23 8.0 3.0 1.5 8.2 32 779
19 1,400 580 467 194 267 22 7.9 2.9 1.6 10 186 860
20 1,770 830 902 202 157 21 7.8 2.9 1.7 14 174 996
21 1,500 630 602 177 140 20 7.5 2.8 1.8 9.7 200 1,660
22 1,540 990 758 163 115 19 7.3 2.8 1.7 6.3 102 1,380
23 1,350 815 715 152 94 18 7.0 2.2 1.6 8.1 106 1,220
24 681 999 1,160 139 81 18 6.7 2.2 1.5 355 153 594
25 1,320 952 838 131 76 18 6.3 2.1 1.5 124 76 585
26 1,490 2,790 814 126 81 20 6.0 2.0 1.4 46 118 486
27 677 2,170 1,330 217 78 19 5.8 1.9 1.4 27 189 390
28 480 829 1,040 191 76 18 5.7 1.9 1.4 61 170 443
29 413 311 749 156 65 19 5.6 1.8 1.3 158 274 924
30 391   520 135 59 17 5.4 1.8 1.3 141 956 347
31 685   565   55   5.2 1.7   90   238