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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 451.58 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 1940-10-01 -> 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
1 322 295 510 340 224 162 135 112 99 108 124 187
2 284 302 550 356 212 165 137 109 97 113 124 190
3 249 323 517 310 216 166 137 109 97 115 127 190
4 279 336 501 285 219 167 135 111 96 113 129 197
5 299 288 494 302 212 168 132 110 95 113 131 201
6 331 303 552 304 220 167 130 108 95 123 129 191
7 343 346 526 290 232 166 128 107 95 111 131 222
8 400 389 464 281 221 165 129 107 98 111 135 216
9 412 444 436 278 220 167 128 107 99 110 132 208
10 449 427 407 278 218 167 127 108 99 115 131 210
11 539 355 427 281 199 165 125 107 100 117 139 212
12 492 330 408 267 194 163 124 107 99 119 150 205
13 406 440 364 254 231 151 124 106 100 119 160 207
14 490 430 341 250 197 147 123 106 101 115 150 205
15 440 470 367 262 175 148 123 103 100 114 143 208
16 435 470 413 257 168 147 123 103 99 116 138 214
17 411 449 353 267 167 145 122 110 102 121 137 239
18 373 392 301 252 167 146 121 110 102 122 143 241
19 342 392 283 239 167 145 120 110 104 123 144 258
20 401 469 276 239 166 145 121 109 102 135 153 303
21 431 538 291 237 164 143 121 108 102 150 169 294
22 436 605 309 243 163 141 120 105 102 148 156 298
23 439 599 363 237 169 141 117 101 102 148 161 277
24 446 570 306 229 164 142 118 99 104 151 164 281
25 485 565 284 214 159 141 118 99 104 151 164 275
26 548 607 296 219 159 139 118 99 105 125 170 256
27 407 573 347 219 162 137 115 98 108 154 175 224
28 347 535 371 225 169 135 115 97 104 156 176 243
29 350 293 326 210 167 134 115 97 103 153 176 287
30 303   282 217 164 133 114 99 106 139 176 347
31 297   289   162   114 99   126   341