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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 11059300 SANTA ANA R A E ST NR SAN BERNARDINO CA


San Bernardino County, California
Hydrologic Unit Code 18070203
Latitude  34°03'54", Longitude 117°17'58" NAD27
Drainage area 541  square miles
Gage datum 951.91 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 1999-10-01 -> 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 58 31 201 69 21 14 1.5 8.2 5.5 3 2.7 27
2 33 20 112 64 21 15 0.5 4.8 6.4 2.6 2.1 23
3 59 43 72 69 23 15 0.43 21 6.8 2.4 2 19
4 20 30 44 60 34 15 0.38 17 4.8 2.9 3.1 51
5 99 146 46 102 34 16 0.79 4.4 4.1 12 2.3 8.9
6 73 145 70 100 27 14 0.58 4.1 4.9 3.5 3.4 27
7 85 96 63 79 20 15 0.57 4.1 8.3 1.8 4.9 41
8 61 62 57 70 17 13 1 4.3 4.7 2.4 44 14
9 263 64 28 66 17 12 1.2 5.5 4.8 3.9 41 8.2
10 521 28 48 65 22 12 0.88 7.6 4.2 1.7 16 8.5
11 536 69 56 38 45 11 0.68 9 4.5 1.3 2.8 15
12 92 77 94 44 51 11 0.52 8.9 8.5 2 6.9 60
13 52 135 92 42 40 10 11 8.5 5.7 8.5 3.7 51
14 53 134 60 80 30 8.5 12 8.1 4.6 4.9 2.8 40
15 83 73 161 43 26 6.6 15 7.6 24 3.9 4.9 36
16 87 41 96 31 31 5.5 2.8 7 4.7 2.4 7.1 51
17 57 36 68 45 35 4.2 0.27 5.7 3.6 21 3.7 56
18 38 49 53 50 31 3.7 2.8 6.1 3.3 22 3.2 18
19 48 121 44 35 42 2.9 7.1 7.2 3.1 9.3 3.1 59
20 112 158 47 38 29 2.6 10 32 4.5 117 18 208
21 150 163 105 29 20 2.3 1.3 53 4 18 65 189
22 186 94 95 22 32 1.9 0.44 7.8 3.3 7.3 12 418
23 98 95 85 22 32 1.7 2.9 10 2.9 5 4.6 75
24 34 48 49 26 24 3.3 4.8 6.6 2.5 4 14 111
25 35 118 48 27 21 13 6.1 5.6 2.8 2.4 4.5 75
26 20 135 40 43 20 10 10 4.9 2.3 2.5 22 52
27 41 84 34 30 20 6.2 8.4 5.7 1.7 79 16 23
28 45 163 39 30 16 3.5 5.6 7.4 2.7 10 47 53
29 62 18 68 20 16 1.1 4.2 8.8 3 6.1 30 88
30 22   122 23 16 0.69 4.4 6.3 3 4.4 39 16
31 22   82   15   10 6.4   2.1   41