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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 -> 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
1 221 569 588 607 121 49 16 4.9 2 1.4 106 331
2 236 794 906 568 116 47 15 4.8 1.9 1.5 64 755
3 355 1,020 944 483 143 44 15 4.7 1.9 1.7 43 548
4 1,590 855 935 469 131 49 14 4.5 1.9 3.3 55 326
5 868 727 708 505 395 60 13 4.3 1.8 9.3 26 277
6 888 798 1,370 829 171 47 12 4.2 1.8 6.7 22 412
7 771 1,640 1,090 850 131 41 12 4.1 1.7 4.1 85 229
8 1,330 1,560 590 491 109 39 12 4 1.7 3.3 53 211
9 1,340 1,910 466 389 97 37 11 3.9 1.7 2.8 36 216
10 1,440 1,070 850 319 90 34 11 3.9 1.7 4.7 32 513
11 961 552 746 429 84 31 10 3.8 1.6 12 27 1,360
12 594 421 798 706 76 29 10 3.7 1.6 7.7 23 395
13 586 930 1,050 557 70 28 9.6 3.5 1.6 13 20 293
14 395 1,480 1,010 380 66 26 9.2 3.4 1.7 23 19 243
15 357 959 752 299 76 25 8.8 3.3 1.6 8.1 18 970
16 647 1,140 896 265 274 24 8.4 3.1 1.7 7.9 35 816
17 1,170 946 722 232 249 23 8.1 3 1.6 8.1 34 658
18 1,520 789 539 220 186 23 7.9 2.9 1.6 8.2 32 779
19 1,400 580 467 193 265 22 7.8 2.8 1.8 10 186 860
20 1,770 830 901 202 157 21 7.6 2.8 1.9 14 174 996
21 1,500 630 601 176 139 20 7.3 2.7 2 9.7 200 1,660
22 1,540 990 757 163 114 19 7.1 2.7 1.9 6.3 102 1,380
23 1,350 815 714 151 93 18 6.8 2.6 1.7 8.1 106 1,220
24 681 999 1,160 139 80 17 6.5 2.6 1.6 355 153 594
25 1,320 952 837 131 75 17 6.2 2.4 1.6 124 76 585
26 1,490 2,790 812 125 80 19 5.9 2.3 1.6 46 118 486
27 677 2,170 1,330 216 77 18 5.7 2.2 1.5 27 189 390
28 480 828 1,040 191 76 18 5.6 2.1 1.5 61 170 443
29 413 311 748 155 65 19 5.5 2 1.5 158 274 924
30 391   519 135 58 17 5.3 2 1.5 141 956 347
31 685   564   54   5.1 2   90   238