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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 3,864.88 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
1 228 279 296 682 1,890 2,420 1,140 283 74 68 86 112
2 357 239 306 703 1,950 2,390 1,120 258 70 69 91 126
3 248 219 304 732 2,000 2,370 1,070 240 68 58 90 206
4 206 214 311 765 2,070 2,390 1,010 225 70 53 82 156
5 203 230 319 797 2,100 2,410 971 217 84 52 79 132
6 179 230 324 824 2,120 2,380 940 214 95 50 85 165
7 173 245 323 918 2,120 2,310 901 199 79 50 79 165
8 210 272 364 931 2,140 2,250 847 188 72 50 92 171
9 238 274 375 916 2,160 2,220 811 179 67 50 97 135
10 204 255 388 933 2,150 2,170 763 174 74 48 97 157
11 202 243 391 1,030 2,180 2,130 710 165 66 54 116 281
12 207 238 379 1,050 2,250 2,060 678 156 64 52 122 193
13 229 246 390 1,070 2,310 2,020 665 147 58 49 105 153
14 208 271 402 1,090 2,400 2,000 652 141 56 61 113 135
15 204 272 413 1,120 2,450 1,970 628 145 55 56 107 139
16 214 296 432 1,150 2,560 1,950 607 143 51 63 100 152
17 208 278 448 1,180 2,540 1,860 580 136 48 70 122 130
18 206 293 456 1,210 2,560 1,800 547 129 47 59 188 127
19 207 307 473 1,230 2,550 1,780 519 120 60 56 213 136
20 197 287 489 1,280 2,540 1,730 493 111 51 56 189 143
21 213 278 512 1,360 2,530 1,670 481 106 47 52 170 140
22 218 269 547 1,460 2,520 1,630 453 103 46 50 146 201
23 214 263 543 1,490 2,540 1,570 435 100 46 52 129 426
24 208 265 557 1,510 2,560 1,490 411 97 46 65 132 300
25 214 269 601 1,530 2,580 1,420 400 94 55 134 120 219
26 217 269 603 1,570 2,580 1,360 390 89 76 105 113 185
27 205 277 608 1,630 2,590 1,330 366 82 53 88 110 182
28 195 303 609 1,710 2,580 1,280 337 79 51 94 110 174
29 190 278 618 1,740 2,520 1,240 326 76 58 89 113 173
30 192   636 1,810 2,430 1,180 315 73 60 121 114 178
31 216   660   2,450   300 75   102   229