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USGS Surface-Water 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 11274790 TUOLUMNE R A GRAND CYN OF TUOLUMNE AB HETCH HETCHY


Tuolumne County, California
Hydrologic Unit Code 18040009
Latitude  37°55'00", Longitude 119°39'32" NAD27
Drainage area 301  square miles
Gage datum 3,830 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 2020-10-01 -> 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
1 399 120 134 520 1,220 2,060 1,830 348 67 35 150 54
2 267 115 141 645 1,220 2,110 1,900 323 61 37 130 51
3 231 119 147 719 1,170 2,150 1,870 296 110 38 129 53
4 207 111 145 736 1,250 2,240 1,770 303 125 36 138 99
5 271 114 144 747 1,540 2,290 1,710 343 84 32 126 69
6 226 120 145 798 1,740 2,310 1,620 353 71 29 113 62
7 213 130 148 902 1,800 1,920 1,450 267 64 27 116 60
8 217 138 149 1,010 1,470 1,800 1,380 243 58 26 99 55
9 415 142 142 1,020 1,180 1,790 1,320 224 55 25 142 62
10 113 145 136 946 1,090 1,860 1,250 199 76 25 156 78
11 111 174 127 860 1,030 1,720 1,120 188 85 10 160 96
12 117 204 131 796 1,030 1,650 1,010 202 79 10 157 77
13 129 210 135 750 1,060 2,040 935 210 72 9.9 149 88
14 123 198 140 656 1,180 2,030 881 216 72 9.6 134 110
15 119 193 169 564 1,430 2,020 909 202 65 9.3 129 93
16 116 176 166 594 1,510 1,930 968 182 59 9.2 117 116
17 118 158 170 594 1,510 1,950 1,030 192 54 8.8 108 109
18 120 153 162 628 1,450 1,970 1,080 181 51 9.7 102 112
19 117 154 238 668 1,510 1,870 1,020 160 49 8.4 98 110
20 113 162 232 702 1,430 1,410 928 149 51 8.1 87 103
21 111 152 203 743 1,160 1,190 796 281 52 8 80 98
22 109 145 258 717 1,040 1,210 747 232 54 8.8 73 107
23 107 149 334 703 1,040 1,220 662 180 49 10 70 225
24 105 143 406 770 1,050 1,290 589 147 44 355 66 190
25 105 138 472 776 2,380 1,290 546 129 40 901 63 155
26 103 133 524 749 2,320 1,430 488 126 36 284 65 149
27 105 131 526 716 2,220 1,430 472 111 34 249 63 344
28 105 128 509 690 2,320 1,400 429 99 32 248 60 224
29 108 204 474 726 2,240 1,390 406 90 30 221 56 182
30 108   458 1,010 2,250 1,630 399 84 31 199 55 364
31 112   452   2,130   363 76   177   754