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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 11078000 SANTA ANA R A SANTA ANA CA


Orange County, California
Hydrologic Unit Code 18070203
Latitude  33°45'04", Longitude 117°54'27" NAD27
Drainage area 1,700  square miles
Gage datum 70 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 1939-10-01 -> 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
1 128 93 487 129 28 9.4 0.98 0.10 0.02 28 3.0 11
2 112 110 518 144 26 9.8 1.2 0.10 0.02 2.9 1.8 11
3 52 134 406 114 36 11 1.5 0.03 0.06 5.3 1.3 13
4 151 130 427 91 31 18 1.4 0.01 0.02 5.1 1.9 25
5 128 98 427 89 39 24 1.6 0.04 0.19 6.7 1.6 24
6 168 123 411 116 47 19 1.9 0.06 0.11 13 1.4 69
7 226 165 321 96 49 18 1.8 0.04 0.07 2.4 3.9 69
8 223 176 304 75 44 16 1.7 0.02 0.11 3.8 12 33
9 267 319 223 62 43 15 1.5 0.02 0.00 4.0 9.7 19
10 313 310 215 60 44 15 1.3 0.02 4.6 3.8 4.1 16
11 408 206 242 69 34 12 1.2 0.03 1.8 3.4 14 16
12 390 245 218 67 23 12 1.1 0.23 0.03 3.2 12 26
13 228 328 183 57 65 7.6 1.1 0.02 0.02 3.9 41 17
14 290 409 149 66 43 1.3 1.0 0.01 0.06 1.1 13 11
15 273 315 198 72 23 0.48 1.1 0.05 2.0 0.09 3.6 32
16 296 294 236 54 13 1.6 0.73 0.03 0.03 0.03 3.7 60
17 269 301 187 64 12 2.5 0.17 6.4 0.03 12 2.3 58
18 223 237 94 55 12 0.56 0.05 7.2 0.02 2.8 14 62
19 185 222 74 31 10 0.43 0.40 8.7 0.47 5.9 6.1 76
20 184 289 76 34 7.8 0.35 0.19 8.2 0.13 40 9.2 129
21 236 367 94 31 5.4 0.31 0.06 7.4 0.38 23 26 132
22 274 424 87 39 13 0.30 0.01 5.7 1.2 22 17 167
23 273 454 147 38 5.8 0.33 0.26 0.17 0.18 23 4.0 67
24 255 476 121 39 5.1 0.29 0.08 0.06 0.83 20 29 77
25 309 558 98 31 5.0 0.22 0.17 0.05 11 21 17 72
26 340 606 98 17 5.2 0.27 0.27 0.06 0.33 8.1 22 51
27 230 483 147 18 6.3 0.63 0.35 0.09 0.34 41 13 42
28 138 418 173 38 12 0.74 0.36 0.08 2.8 21 14 52
29 182 195 128 29 16 0.72 0.23 0.06 2.7 21 33 79
30 160   82 25 11 0.74 0.18 0.02 7.3 20 26 139
31 134   75   10   0.15 0.02   5.3   141