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USGS Daily Statistics for the Nation

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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 11046530 SAN JUAN C AT LA NOVIA ST BR AT SAN JUAN CAPIS CA


Orange County, California
Hydrologic Unit Code 18070301
Latitude  33°30'09", Longitude 117°38'50" NAD27
Drainage area 109  square miles
Gage datum 81.51 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 1985-10-01 -> 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 11 15 69 31 8.6 3.7 1.6 0.57 0.33 0.24 0.6 2.9
2 11 18 49 25 8.4 3.7 1.6 0.55 0.33 0.24 0.58 2.3
3 15 24 45 23 8.5 3.6 1.5 0.52 0.38 0.26 0.58 2
4 22 18 36 24 8.5 3.5 1.6 0.49 0.36 0.27 0.56 2.3
5 22 31 175 28 9.9 3.8 1.5 0.47 0.37 0.43 0.51 2.2
6 16 45 137 29 13 3.4 1.3 0.47 0.36 0.54 0.53 8.4
7 36 33 50 26 11 3.3 1.1 0.48 0.36 0.28 0.55 9.1
8 40 90 41 23 8.9 3.3 1.1 0.46 0.37 0.24 1.3 3.1
9 104 53 36 23 8.4 3.1 1.1 0.48 0.3 0.25 1 2.5
10 156 32 36 31 7.9 3 1 0.5 0.27 0.26 0.61 3.2
11 235 29 81 21 7.6 2.9 0.92 0.46 0.27 0.29 1.1 4.8
12 34 40 37 19 7.8 3 0.91 0.45 0.29 0.32 1.3 3.6
13 25 39 36 17 14 3 0.88 0.41 0.28 0.31 1.1 2.3
14 34 130 30 18 11 2.8 0.77 0.4 0.31 0.28 0.87 2.2
15 47 85 70 18 9.4 2.7 0.72 0.38 0.32 0.27 0.85 5.5
16 145 52 68 15 8.7 2.7 0.72 0.36 0.29 0.49 0.85 3.2
17 85 45 39 14 8.2 3 0.68 0.36 0.29 1.3 0.81 5.3
18 104 51 30 16 7.8 2.6 0.67 0.35 0.33 1.3 0.76 5.5
19 49 74 30 14 7.4 2.4 0.68 0.35 0.28 1.2 0.82 8.1
20 34 86 29 13 7 2.3 0.67 1.2 0.31 8.2 1.5 18
21 41 91 45 13 6.6 2.3 0.72 2.7 0.32 1.2 3.9 44
22 67 122 41 12 6.6 2.2 0.69 1 0.33 0.69 5 173
23 43 189 51 11 6.3 2.1 0.67 0.7 0.3 0.58 1.4 29
24 22 196 38 12 5.9 2 0.68 0.67 0.3 0.5 3.3 17
25 26 103 38 11 5.6 2 0.69 0.6 0.29 0.5 3.6 10
26 60 90 34 11 5.1 1.9 0.69 0.48 0.3 0.56 2.3 17
27 29 70 42 11 4.8 1.8 0.68 0.44 0.29 8.9 2.5 7.2
28 19 58 30 10 4.8 1.8 0.64 0.44 0.26 3 8.6 8.5
29 17 11 28 9.4 4.5 1.9 0.59 0.39 0.26 0.87 9.1 21
30 13   29 9 4.2 1.7 0.62 0.37 0.26 1 4.4 8.9
31 14   32   3.9   0.59 0.37   0.79   10