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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 11266500 MERCED R A POHONO BRIDGE NR YOSEMITE CA


Mariposa County, California
Hydrologic Unit Code 18040008
Latitude  37°42'58.60", Longitude 119°39'56.40" NAD83
Drainage area 321  square miles
Gage datum 3,882 feet above NAVD88
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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 1916-10-01 -> 2025-09-30)

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
1 229 280 294 680 1,900 2,430 1,150 283 74 68 87 112
2 359 236 304 703 1,950 2,400 1,130 258 70 69 92 127
3 249 218 302 732 2,000 2,370 1,080 240 68 58 91 207
4 206 214 310 765 2,070 2,390 1,010 225 70 53 82 157
5 204 225 318 798 2,100 2,420 977 217 84 52 79 133
6 180 227 323 824 2,120 2,390 947 214 95 50 86 166
7 174 241 323 918 2,120 2,320 907 199 79 50 79 166
8 211 271 364 929 2,140 2,260 853 188 72 50 93 172
9 239 274 375 912 2,150 2,230 811 179 67 50 98 136
10 205 254 388 925 2,140 2,180 763 174 74 48 98 158
11 203 242 392 1,020 2,170 2,130 710 165 66 54 117 283
12 208 238 379 1,040 2,240 2,070 678 156 64 52 123 194
13 230 245 390 1,070 2,320 2,030 665 147 58 49 106 154
14 209 270 402 1,080 2,410 2,020 651 141 56 61 113 136
15 205 271 413 1,120 2,460 1,990 628 145 55 56 108 140
16 215 295 433 1,140 2,570 1,970 607 143 51 64 101 153
17 209 277 448 1,170 2,550 1,870 580 136 48 70 123 131
18 208 293 457 1,210 2,570 1,810 547 129 47 59 189 128
19 208 307 474 1,230 2,560 1,790 519 120 60 56 215 136
20 198 287 490 1,280 2,540 1,740 493 111 51 56 190 143
21 214 278 513 1,360 2,540 1,680 481 106 47 52 171 141
22 219 268 547 1,450 2,530 1,640 452 103 46 51 148 201
23 215 263 541 1,480 2,550 1,590 435 100 46 53 130 428
24 210 264 554 1,510 2,570 1,510 411 97 46 65 133 301
25 216 267 595 1,530 2,590 1,430 400 94 55 135 120 220
26 219 268 596 1,570 2,590 1,370 390 89 76 106 114 186
27 207 276 600 1,630 2,600 1,340 366 82 53 89 110 182
28 196 301 602 1,720 2,590 1,290 337 79 51 95 111 174
29 191 278 613 1,740 2,520 1,250 325 76 58 90 114 172
30 193   633 1,810 2,430 1,190 315 73 60 122 114 177
31 217   657   2,450   300 75   103   230