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USGS Daily Statistics for California

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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 11173575 ALAMEDA C BL WELCH C NR SUNOL CA


Alameda County, California
Hydrologic Unit Code 18050004
Latitude  37°32'26", Longitude 121°51'19" NAD27
Drainage area 149  square miles
Gage datum 300 feet above NGVD29
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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 -> 2020-09-30)

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 82 65 112 120 42 22 2.8 1.3 0.99 1 1 2
2 76 70 117 108 41 22 2.7 1.3 1 0.97 1 45
3 58 80 158 109 56 22 2.7 1.3 1 0.9 0.96 12
4 51 95 182 143 51 22 2.6 1.3 1 0.93 0.99 3.3
5 45 71 145 124 44 14 2.6 1.3 1 1.7 1 2.5
6 48 67 154 102 41 8 2.5 1.4 0.98 1.7 1.1 3.1
7 63 123 152 90 37 11 2.4 1.4 0.98 1.7 0.96 2.6
8 99 87 129 77 36 11 2.3 1.4 1.1 1.7 4.2 2.3
9 84 91 127 64 35 9.5 2.1 1.4 1 1.4 5 3.2
10 102 118 120 58 32 8.5 2 1.4 0.97 0.96 1.2 6.7
11 139 91 117 60 30 8.3 2 1.3 0.96 0.87 1.1 20
12 76 81 127 74 29 8.2 1.9 1.3 0.97 0.86 1.1 34
13 63 98 127 82 28 9.4 1.9 1.3 0.96 0.89 1.1 7.1
14 70 131 116 69 28 11 1.8 1.2 0.96 0.89 1.2 8.8
15 63 112 91 64 28 11 1.9 1.3 0.99 1.4 1.1 12
16 59 112 98 67 27 11 1.8 1.2 1 2.5 1.2 68
17 83 103 94 69 26 11 1.7 1.2 1 2.5 1.3 19
18 87 99 87 64 25 11 1.7 1.2 1 2.5 1.2 11
19 113 93 88 62 25 10 1.6 1.2 1 2.5 0.89 33
20 122 145 123 64 24 10 1.6 1.2 1 2.5 1 53
21 109 139 100 65 24 10 1.6 1.2 1 2.5 1.1 44
22 114 101 117 63 24 9.9 1.5 1.2 1 2.6 0.95 67
23 114 108 136 60 23 9.7 1.5 1.1 1 2.6 1 80
24 81 130 125 58 22 9.6 1.4 1.1 1.1 2.4 1.1 49
25 98 143 155 54 22 9.6 1.4 1.1 1 2.4 1.1 30
26 85 134 141 47 22 6.3 1.4 1.1 1 2.4 1.1 42
27 82 140 126 47 22 3 1.3 1 1 2.3 1.5 30
28 80 153 132 47 22 3 1.3 1 1.1 2.4 1.9 36
29 73 185 132 49 22 3 1.3 1 1.1 2.1 1.9 89
30 69   127 46 22 2.8 1.3 0.98 1.1 1.2 2 75
31 66   119   22   1.3 1   1.1   134