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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 11153650 LLAGAS C NR GILROY


Santa Clara County, California
Hydrologic Unit Code 18060002
Latitude  36°59'15", Longitude 121°31'34" NAD27
Drainage area 84.2  square miles
Gage datum 160 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 2002-10-01 -> 2024-09-30)

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 37 13 58 29 14 7.3 4.2 2.3 1.4 1.2 1.9 5.7
2 15 23 56 34 14 7.2 4.1 2.4 1.4 1.1 2 22
3 15 49 54 28 14 7 4 2.3 1.3 1.1 1.8 6.2
4 44 42 51 27 13 7 3.9 2.2 1.3 1.2 1.8 7.1
5 37 41 48 29 13 7.2 3.8 2.2 1.3 1.3 1.8 3.6
6 30 52 58 25 13 7.1 3.8 2.2 1.3 1.2 1.8 3.4
7 33 116 60 30 12 7 3.7 2.2 1.3 1.2 1.9 4.4
8 123 71 35 31 12 6.9 3.6 2.3 1.3 1.2 2.6 4.2
9 141 73 36 29 12 6.8 3.5 2.2 1.3 1.2 2.3 3.9
10 101 94 124 27 12 6.6 3.4 2.2 1.3 1.3 1.9 18
11 115 50 68 28 11 6.4 3.3 2.2 1.3 1.2 2.2 24
12 79 39 55 31 10 6.3 3.2 2.2 1.4 1.3 1.9 23
13 62 52 64 35 10 6.2 3.1 2.1 1.4 24 1.9 7.1
14 96 81 64 29 9.7 6.1 3 2.1 1.4 17 2 13
15 81 73 46 27 9.7 5.9 2.9 2 1.5 1.5 2.1 14
16 87 60 37 29 9.7 5.8 2.8 2 1.5 3.7 3.3 16
17 73 65 33 26 9.5 5.7 2.7 2 1.4 1.5 2.4 14
18 42 89 28 24 9.6 5.6 2.6 2.1 1.3 1.3 2.9 12
19 74 65 28 22 10 5.5 2.6 2.1 1.3 1.6 2.2 18
20 94 123 58 22 9.1 5.3 2.5 2.1 1.3 1.7 2.8 9.2
21 81 107 59 21 9.3 5.2 2.5 2 1.4 1.4 2.6 4.5
22 112 68 101 20 9.7 5.1 2.5 2 1.4 1.5 2.1 10
23 79 57 75 19 9.2 5 2.5 1.8 1.3 1.6 2.1 41
24 50 47 88 18 8.8 4.8 2.5 1.8 1.3 2 2 28
25 32 71 102 18 8.7 4.7 2.5 1.7 1.3 8 2 7.1
26 23 50 76 17 8.5 4.6 2.5 1.6 1.3 2.8 2.2 19
27 30 60 53 16 8.2 4.5 2.5 1.6 1.3 1.9 2.3 15
28 35 66 48 16 7.9 4.5 2.5 1.6 1.3 4.3 2.2 7.5
29 30 25 55 15 7.7 4.5 2.4 1.6 1.3 2.1 3.4 16
30 15   45 14 7.6 4.3 2.4 1.5 1.2 2.2 6.8 13
31 15   37   7.4   2.4 1.4   2   56