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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 -> 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
1 220 549 546 564 114 47 15 4.7 1.9 1.4 92 299
2 231 753 840 528 109 45 14 4.6 1.8 1.4 56 709
3 339 963 875 449 134 43 14 4.4 1.8 1.6 38 495
4 1,480 805 866 437 123 47 13 4.3 1.8 3.1 48 291
5 811 685 656 482 367 57 12 4.1 1.8 8.7 23 245
6 828 749 1,270 781 159 45 12 4 1.7 6.2 19 364
7 719 1,520 1,010 794 123 40 11 3.9 1.6 3.9 74 326
8 1,230 1,450 548 461 102 37 11 3.8 1.6 3 46 250
9 1,250 1,770 433 365 91 35 11 3.7 1.6 2.6 32 216
10 1,340 999 788 300 84 32 10 3.7 1.6 4.3 28 461
11 899 517 692 401 79 30 9.9 3.5 1.5 11 23 1,200
12 559 396 740 657 73 28 9.5 3.5 1.6 6.9 20 363
13 552 865 975 519 68 27 9.1 3.4 1.5 11 18 273
14 386 1,370 937 355 64 25 8.7 3.2 1.6 20 17 247
15 349 891 698 280 73 24 8.3 3.1 1.5 7.3 16 917
16 793 1,060 831 248 256 23 7.9 2.9 1.6 7 31 770
17 1,180 879 670 218 235 22 7.6 2.8 1.6 7.3 29 620
18 1,450 734 501 206 185 22 7.4 2.7 1.5 7.3 28 790
19 1,330 541 435 182 256 21 7.3 2.7 1.7 8.9 159 871
20 1,660 771 835 189 151 20 7.2 2.6 1.8 13 149 967
21 1,450 586 558 166 133 19 6.9 2.6 1.9 8.7 173 1,570
22 1,500 918 702 153 110 18 6.7 2.6 1.8 5.8 89 1,330
23 1,290 757 662 143 90 17 6.4 2.5 1.7 7.4 92 1,180
24 663 927 1,080 131 77 17 6.2 2.4 1.6 308 133 580
25 1,250 883 776 123 72 17 5.9 2.3 1.6 107 66 571
26 1,450 2,580 753 118 77 19 5.6 2.2 1.5 40 103 474
27 680 2,010 1,230 202 74 18 5.4 2.1 1.4 23 166 379
28 492 768 961 178 72 17 5.3 2 1.4 52 150 424
29 425 245 694 145 62 18 5.2 1.9 1.4 137 239 867
30 396   484 127 56 16 5 1.9 1.4 123 830 346
31 661   525   52   4.8 1.9   78   239