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USGS Daily Statistics for the Nation

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 11102300 RIO HONDO BL WHITTIER NARROWS DAM CA


Los Angeles County, California
Hydrologic Unit Code 18070105
Latitude  34°01'00", Longitude 118°05'15" NAD27
Drainage area 124  square miles
Gage datum 177.06 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 1966-10-01 -> 2024-09-30)

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 81 110 735 132 96 78 45 53 48 103 68 96
2 109 137 748 103 83 79 46 57 47 51 67 96
3 119 151 542 94 94 86 45 50 51 46 71 98
4 258 179 523 118 82 89 40 44 54 47 80 163
5 319 282 521 111 95 104 39 42 63 95 77 107
6 265 448 356 107 146 83 39 38 55 54 81 173
7 395 296 269 99 89 84 41 37 45 58 93 250
8 237 364 307 72 94 75 44 37 42 62 106 101
9 532 398 158 96 101 72 54 36 43 58 98 87
10 736 328 168 96 94 76 50 34 51 56 92 106
11 579 338 224 115 81 80 51 34 68 69 101 121
12 253 398 116 98 103 86 53 35 49 61 85 121
13 224 230 164 98 101 86 54 32 50 64 71 125
14 339 402 154 119 84 84 52 31 53 68 70 112
15 365 400 325 123 89 86 56 29 68 63 66 120
16 346 449 247 96 92 112 53 34 53 62 77 192
17 300 563 246 94 88 83 54 48 44 79 80 112
18 344 450 159 119 84 86 57 32 40 64 90 164
19 240 704 215 93 82 86 63 39 51 69 104 279
20 246 737 165 143 74 83 66 53 45 140 115 253
21 168 749 229 122 88 79 64 84 44 83 162 215
22 224 529 208 97 102 75 62 36 48 79 126 314
23 177 597 204 91 70 76 56 38 44 94 81 109
24 283 552 123 77 67 73 53 38 44 69 117 178
25 560 646 222 81 65 70 53 37 59 69 137 142
26 494 538 136 90 64 68 49 36 49 74 144 173
27 310 517 220 79 65 66 47 39 51 107 113 118
28 324 539 128 95 88 62 49 46 54 76 171 227
29 266 97 112 107 64 57 48 50 57 70 172 222
30 122   120 108 62 53 50 54 65 111 197 241
31 244   121   76   55 53   89   121