Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

* We've detected you're using a mobile device. Find our mobile dedicated web site here.
Click to hideNews Bulletins

USGS Daily Statistics for California

Click to hide state-specific text

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 11162570 SAN GREGORIO C A SAN GREGORIO CA


San Mateo County, California
Hydrologic Unit Code 18050006
Latitude  37°19'33", Longitude 122°23'08" NAD27
Drainage area 50.9  square miles
Gage datum 11.40 feet above NGVD29
Output formats
HTML table of all data
Tab-separated data
Reselect output format

00060, Discharge, cubic feet per second,
Day of
month
Mean of daily mean values for each day for 40 - 42 years of record in, ft3/s   (Calculation Period 1969-10-01 -> 2019-09-30)

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 75 41 95 108 20 8.2 4.1 2.0 1.3 1.8 3.3 39
2 63 50 119 73 18 7.9 4.0 1.9 1.2 1.6 3.5 59
3 59 66 102 63 19 7.6 3.8 1.9 1.2 1.6 3.0 31
4 159 55 102 52 17 7.9 3.7 1.8 1.2 1.5 4.6 32
5 95 51 96 51 18 7.7 3.7 1.8 1.2 1.8 3.6 22
6 59 69 100 47 16 7.2 3.6 1.7 1.1 1.5 6.9 20
7 67 127 91 60 16 7.0 3.6 1.6 1.1 1.6 4.5 17
8 77 123 85 44 15 6.8 3.5 1.6 1.1 1.6 5.5 18
9 85 100 67 39 14 7.1 3.8 1.6 1.2 1.6 4.5 32
10 60 91 89 38 13 6.6 3.5 1.6 1.2 2.0 7.3 36
11 76 76 88 63 13 6.4 3.4 1.5 1.2 3.2 44 71
12 64 116 76 47 12 6.1 3.3 1.5 1.1 2.4 17 39
13 116 134 107 64 12 6.0 3.2 1.5 1.2 4.8 30 23
14 117 157 75 38 11 5.9 3.1 1.7 1.2 2.9 36 25
15 68 151 79 36 11 5.8 2.9 1.8 1.2 2.9 39 38
16 129 172 88 31 11 5.7 2.8 1.7 1.2 4.3 39 57
17 108 158 86 28 11 5.6 2.8 1.6 1.2 4.2 24 36
18 117 147 68 27 11 5.4 2.7 1.6 1.2 2.8 18 42
19 97 154 65 25 11 5.4 2.6 2.2 1.3 2.7 16 61
20 115 161 80 25 11 5.3 2.5 1.7 1.2 3.3 22 76
21 118 108 83 23 10 5.1 2.4 1.7 1.4 2.8 15 79
22 101 88 103 22 9.8 5.0 2.4 1.6 1.3 2.4 12 96
23 75 76 87 23 9.5 4.8 2.4 1.5 1.2 3.1 11 88
24 86 69 112 23 9.3 4.7 2.3 1.5 1.4 2.6 23 82
25 82 86 97 24 9.1 4.6 2.3 1.5 1.4 4.0 15 81
26 85 90 106 22 9.0 4.5 2.3 1.5 1.3 4.8 12 56
27 76 90 84 20 9.0 4.4 2.2 1.4 1.4 3.2 20 81
28 60 77 90 27 9.9 4.5 2.2 1.3 1.2 3.2 21 62
29 57 40 68 22 8.8 4.8 2.2 1.4 1.2 3.2 28 126
30 49   60 24 8.4 4.3 2.1 1.4 1.5 3.3 31 89
31 52   84   8.4   2.0 1.3   3.2   73