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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 11174600 ALAMO CN NR PLEASANTON CA


Alameda County, California
Hydrologic Unit Code 18050004
Latitude  37°41'40", Longitude 121°55'10" NAD83
Drainage area 39.5  square miles
Gage datum 306.61 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 1978-10-01 -> 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 30 24 70 41 9.5 4.7 2.8 2.4 2.3 2.1 5.6 18
2 25 28 95 21 11 4.1 3.3 2.4 2.2 2.3 11 30
3 26 25 41 15 8.9 4 2.8 2.4 2.2 2.4 5.2 43
4 156 72 33 26 15 3.9 2.8 2.4 2.2 2 3.6 22
5 168 41 62 42 11 3.9 2.7 2.3 2.2 1.9 2.9 8.6
6 44 45 60 37 8.7 3.7 2.7 2.4 2.3 1.8 4.8 6.8
7 22 129 50 45 7 3.8 2.7 2.5 2.1 2.2 3.4 11
8 71 76 25 23 6.3 3.8 2.6 2.1 2.2 2.1 17 16
9 103 59 42 18 6.4 4 2.5 2.3 2.2 2 15 5.4
10 114 47 85 23 5.9 5.3 2.5 2.3 2.2 1.8 4.7 46
11 71 24 38 24 5.6 4.3 2.6 2.4 2.2 1.9 5.1 72
12 55 23 58 15 6.1 3.7 2.5 2.2 2.3 1.9 6.2 45
13 107 125 98 15 5.4 3.6 2.5 2.2 2.4 2.1 31 51
14 83 67 53 16 5.5 3.6 2.4 2.3 2.4 3.6 9.1 39
15 47 99 31 12 7.7 3.5 2.5 2.4 2.6 9.1 5.6 37
16 117 104 36 23 14 3.6 2.5 3.6 4 32 20 40
17 43 57 36 12 6.5 3.4 2.4 2.5 3.1 6 15 29
18 55 71 25 13 9.6 3.4 2.4 2.2 4 3.1 36 19
19 59 132 22 13 16 3.1 2.5 2.5 4 5.8 7.8 20
20 51 130 31 15 6.4 3.1 2.6 2.3 2.8 4.5 10 37
21 40 82 55 18 6.6 3.3 2.5 2.1 2.7 5.7 8.5 47
22 106 35 68 14 5.4 3.1 2.5 2.1 2.5 6.6 22 88
23 47 30 37 16 5 3 2.4 2.1 3.1 3.7 24 52
24 85 41 46 13 4.8 3.1 2.3 2.3 3.7 89 11 45
25 27 40 28 18 4.9 3.1 2.3 2.3 5.1 56 6.1 35
26 60 28 23 9 4.6 3 2.3 2.2 2.7 9.8 15 15
27 80 61 26 8.9 4.5 3 2.5 2.1 2.5 8.4 20 61
28 67 53 26 27 4.5 3.1 2.4 2.1 2.4 26 9.7 12
29 43 16 45 12 4.5 3.4 2.3 2.2 2.2 7.5 15 53
30 19   28 12 14 3 2.4 2.1 2.1 10 26 40
31 14   98   6.5   2.4 2.3   4.1   202