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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 11173510 ALAMEDA C BL CALAVERAS C NR SUNOL CA


Alameda County, California
Hydrologic Unit Code 18050004
Latitude  37°30'13", Longitude 121°49'25" NAD27
Drainage area 139  square miles
Gage datum 429.83 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 1995-10-01 -> 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 67 63 85 67 22 6 4 2.8 2.7 2.4 1.9 2.9
2 31 70 107 61 22 6 4 2.7 2.6 2.2 1.6 23
3 27 76 126 56 17 5.8 3.9 2.7 2.6 2 1.5 6.4
4 36 105 137 50 20 5.8 3.8 2.7 2.6 2.3 1.5 3.3
5 65 94 100 65 24 5.6 3.8 2.7 2.6 2.7 1.5 2.7
6 55 73 107 56 21 8.1 3.7 2.7 2.6 2.8 1.5 6.3
7 39 104 111 45 18 9.8 3.6 2.7 2.6 2.8 1.5 4.4
8 58 76 92 34 17 10 3.5 2.7 2.6 2.8 3.5 6.8
9 96 75 86 34 16 9 3.4 2.7 2.6 2.5 3.5 4.4
10 147 94 167 31 14 8.2 3.4 2.8 2.6 2 1.7 11
11 158 72 140 33 12 8.1 3.3 2.7 2.6 2 1.5 33
12 125 63 124 34 11 8 3.3 2.7 2.6 2 1.5 29
13 87 112 124 40 11 9.2 3.2 2.7 2.6 2 1.6 13
14 115 107 105 31 11 10 3.2 2.7 2.6 2.1 1.6 17
15 131 86 99 27 11 10 3.2 2.7 2.6 2.7 1.6 14
16 165 80 95 27 11 10 3.2 2.7 2.6 3.3 1.6 25
17 139 83 89 28 9.9 10 3.2 2.7 2.6 3.3 1.6 19
18 109 79 81 26 9.1 10 3.1 2.7 2.6 3.3 3.6 12
19 107 74 73 27 9 9.8 3.1 2.7 2.5 3.3 2.3 17
20 99 106 96 29 8.5 9.7 3.1 2.7 2.5 3.3 2.5 12
21 78 107 86 30 8.1 9.6 3.1 2.7 2.5 3.4 2.2 7.7
22 101 95 137 29 8.1 9.5 3.1 2.7 2.6 3.4 3.3 43
23 75 83 118 27 7.5 9.4 3.1 2.7 2.6 3.4 3.5 62
24 50 115 113 26 7.1 9.3 3 2.7 2.6 3.5 2.7 52
25 72 120 103 29 6.9 9.2 3 2.7 2.6 12 2.6 38
26 67 111 103 25 6.8 6.3 3 2.7 2.6 3.9 2.5 42
27 66 104 92 25 6.7 4.1 3 2.7 2.6 3.4 2.6 68
28 73 95 87 26 6.6 4.1 3 2.7 2.6 3.3 3.1 36
29 70 19 84 27 6.4 4.1 2.9 2.7 2.6 2.7 3 42
30 63   85 25 6.3 4 2.9 2.7 2.6 2.1 2.6 49
31 62   74   6.1   2.8 2.7   2   148