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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 11051499 SANTA ANA R NR MENTONE (RIVER ONLY) CA


San Bernardino County, California
Hydrologic Unit Code 18070203
Latitude  34°06'30", Longitude 117°05'59" NAD27
Drainage area 210  square miles
Gage datum 1,956.20 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 1994-10-01 -> 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 16 31 94 107 57 36 13 15 8.4 4.7 3.5 5.6
2 14 29 31 105 59 31 13 15 7.6 4.8 4 5.3
3 12 29 36 102 57 31 14 16 7.9 4.2 3.8 5.5
4 5.6 29 36 95 55 30 14 15 7.5 4.4 3.5 5.8
5 12 29 106 97 59 30 14 15 9.3 4.3 3.3 5.9
6 11 24 100 96 70 31 13 15 9.9 6.1 3.5 8.3
7 18 22 93 93 63 30 13 15 11 5.8 3.5 8.5
8 34 38 90 93 51 27 13 14 9.8 5.3 4 9.5
9 35 28 68 91 50 27 13 14 7.3 4.7 5.3 7.1
10 38 26 53 79 52 25 12 14 6.1 4.2 5.5 8.5
11 43 24 88 72 77 23 12 15 8.1 4 7.2 7
12 27 22 78 71 91 22 16 15 8.9 3.3 11 6.6
13 24 22 72 68 98 22 31 16 7.1 3.2 8.1 5.3
14 21 80 69 62 86 22 35 15 6.5 3 4.1 4.3
15 22 129 74 73 61 22 34 13 5.9 3 5.5 4.1
16 20 61 79 83 57 22 20 8.2 6.8 3 6.1 3.9
17 18 36 78 87 60 21 18 7.9 6.1 3.6 6.5 4
18 19 30 79 93 58 19 18 7.2 5.4 4.3 7.6 4.1
19 14 26 90 92 56 19 17 6.9 4.5 5 4.2 4
20 12 41 94 91 48 19 18 6.8 5.1 13 2.1 4.4
21 11 59 90 82 42 18 18 6.5 6 20 3 3.8
22 13 57 89 78 41 17 15 16 6.1 10 8.9 4.7
23 13 58 80 75 44 16 17 24 6.5 7 5.2 4.5
24 17 69 78 70 43 18 17 10 6.3 6 3.7 4.1
25 21 45 85 71 43 22 17 8.3 5.9 4.6 3.4 4.2
26 57 38 88 65 43 21 17 9.6 6.1 3.8 3.3 5.6
27 45 32 88 58 44 16 16 17 5.1 4 3.3 5.2
28 36 39 108 54 39 15 15 16 4.3 3.2 3.9 4.8
29 33 21 111 56 38 14 14 13 3.9 2.9 5.5 4.4
30 31   111 57 40 13 14 9.1 4.2 2.9 6.2 2.8
31 31   107   41   14 7.2   2.9   12