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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 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 302.73 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 -> 2022-09-30)

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 76 60 100 106 39 21 3.2 1.8 1.6 1.6 1.8 2.6
2 70 63 104 96 38 21 3.2 1.8 1.6 1.5 1.7 40
3 54 73 139 96 52 21 3.1 1.8 1.6 1.5 1.6 11
4 47 85 160 126 47 21 3.1 1.8 1.6 1.5 1.6 3.7
5 42 65 128 120 41 14 3 1.9 1.6 2.2 1.6 3
6 44 61 136 99 38 8.1 3 1.9 1.6 2.2 1.7 3.6
7 57 110 134 85 34 10 2.9 1.9 1.6 2.2 1.6 3.2
8 89 79 114 71 34 10 2.8 2 1.6 2.2 4.5 6.5
9 75 82 113 58 33 9.4 2.6 2 1.6 2 5.3 4.6
10 91 105 106 54 30 8.5 2.5 1.9 1.6 1.5 1.8 6.9
11 124 82 104 55 28 8.4 2.5 1.9 1.6 1.4 1.7 18
12 69 74 113 66 27 8.2 2.4 1.8 1.6 1.4 1.6 31
13 57 89 113 76 26 9.3 2.4 1.8 1.6 1.5 1.6 7.2
14 63 116 103 64 26 11 2.3 1.8 1.6 1.5 1.7 15
15 57 99 82 59 26 11 2.5 1.8 1.6 1.9 1.6 13
16 54 99 91 62 25 11 2.4 1.8 1.7 3 1.7 65
17 75 92 85 64 24 11 2.3 1.8 1.7 2.9 1.8 19
18 79 88 79 60 24 10 2.2 1.8 1.7 2.9 1.7 12
19 101 83 80 58 23 10 2.2 1.8 1.7 2.9 1.6 30
20 109 129 110 59 23 10 2.1 1.8 1.6 2.9 1.7 48
21 98 123 90 60 22 9.8 2.1 1.8 1.6 3 1.8 39
22 102 90 104 59 22 9.7 2.1 1.8 1.7 3.1 1.7 59
23 102 96 121 56 22 9.6 2 1.7 1.7 3.1 1.7 81
24 73 115 111 54 21 9.5 2 1.7 1.7 3.1 1.8 60
25 88 126 138 51 21 9.5 1.9 1.7 1.6 10 1.8 41
26 77 119 125 44 21 6.5 1.9 1.6 1.6 3.7 1.9 52
27 74 124 112 44 21 3.4 1.9 1.6 1.6 3.1 2.2 50
28 81 135 117 44 21 3.4 1.9 1.6 1.7 3.1 2.6 41
29 72 157 117 45 21 3.5 1.9 1.6 1.7 2.8 2.5 84
30 63   113 43 20 3.3 1.8 1.6 1.7 1.9 2.6 71
31 61   106   20   1.8 1.6   1.8   121