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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 11074000 SANTA ANA R BL PRADO DAM CA


Riverside County, California
Hydrologic Unit Code 18070203
Latitude  33°53'00", Longitude 117°38'40" NAD27
Drainage area 2,258  square miles
Contributing drainage area 1,490  square miles
Gage datum 449 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 1940-10-01 -> 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
1 318 298 518 341 223 160 133 112 100 109 125 187
2 279 305 559 357 211 164 135 110 97 114 125 188
3 244 326 526 311 215 166 135 110 98 116 128 188
4 276 340 509 285 218 167 134 111 96 114 130 197
5 296 291 502 303 211 168 131 110 96 113 132 200
6 329 306 562 303 219 167 130 109 95 124 130 189
7 342 350 535 286 231 166 129 108 95 111 131 221
8 400 394 471 275 220 165 130 107 98 111 134 215
9 414 450 442 272 220 167 128 107 99 111 131 206
10 454 432 413 271 217 167 127 109 99 115 131 209
11 546 359 432 274 199 165 126 107 100 118 139 211
12 498 334 413 261 193 163 125 107 100 119 151 203
13 408 447 367 248 231 150 125 106 100 120 161 205
14 493 436 343 244 196 146 124 106 101 116 151 203
15 443 477 369 256 174 147 124 104 100 115 145 206
16 439 477 417 251 167 146 124 104 99 117 139 212
17 414 456 355 261 166 144 123 111 102 121 138 237
18 375 398 301 246 166 145 121 111 102 122 144 239
19 344 397 283 233 165 144 121 110 104 123 145 256
20 404 476 275 232 165 144 122 110 102 136 154 302
21 436 547 291 230 163 142 122 109 102 150 170 293
22 441 615 309 236 162 140 121 106 102 149 157 298
23 443 609 365 233 167 140 117 101 102 150 162 277
24 451 579 306 229 163 141 118 100 105 152 165 282
25 491 573 284 214 158 140 118 100 104 153 165 276
26 556 617 298 219 157 138 118 99 105 127 171 257
27 411 582 350 219 160 136 116 99 109 155 176 222
28 351 543 374 224 167 134 115 98 104 157 176 241
29 355 300 328 209 165 133 116 98 104 155 176 285
30 307   283 216 162 131 114 99 107 140 176 345
31 301   290   161   115 99   127   338