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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 11451715 BEAR C AB HOLSTEN CHIMNEY CYN NR RUMSEY CA


Colusa County, California
Hydrologic Unit Code 18020116
Latitude  38°57'28", Longitude 122°20'30" NAD27
Drainage area 94.9  square miles
Gage datum 920 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 1997-10-01 -> 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 96 95 104 77 22 13 4.2 1.7 1.4 1.6 2.9 35
2 121 162 142 58 22 12 4 1.7 1.4 1.7 2.9 92
3 70 202 129 74 25 12 3.9 1.7 1.4 1.7 2.8 34
4 108 154 126 64 23 12 3.7 1.7 1.3 1.8 2.7 19
5 108 169 136 62 22 14 3.6 1.6 1.4 1.9 2.7 24
6 67 146 174 57 20 13 3.5 1.6 1.4 1.9 2.6 20
7 86 247 119 64 20 10 3.3 1.6 1.4 1.8 2.7 23
8 192 122 79 52 19 10 3.2 1.6 1.4 1.8 3.6 33
9 155 169 84 45 22 10 3.1 1.6 1.4 1.7 3.4 15
10 159 105 119 42 19 9.3 3 1.6 1.5 1.8 3.2 26
11 161 81 91 62 17 9.1 2.9 1.5 1.5 1.8 3.3 69
12 133 81 85 110 20 8.9 2.9 1.5 1.4 1.8 3.4 33
13 90 169 97 70 20 8.5 2.8 1.4 1.4 2 3.4 15
14 111 198 140 55 17 7.9 2.8 1.4 1.4 2.1 3 79
15 86 89 111 46 17 7.5 2.7 1.4 1.4 2 2.9 64
16 95 173 75 47 18 7.1 2.6 1.4 1.4 2 2.9 122
17 92 321 71 43 17 6.9 2.5 1.4 1.4 2 3 36
18 103 214 72 39 17 6.7 2.4 1.4 1.5 2 3 25
19 144 206 76 36 20 6.4 2.3 1.4 1.5 2.6 3 51
20 148 176 121 35 18 6.1 2.3 1.4 1.5 2.3 3.5 82
21 107 218 89 34 16 5.9 2.2 1.5 1.6 2.1 3.8 95
22 140 128 142 33 15 5.6 2.1 1.5 1.5 2.1 3.8 100
23 78 152 105 32 14 5.3 2.1 1.5 1.6 2.1 3.7 92
24 66 137 109 31 13 5.2 2.1 1.5 1.6 27 12 72
25 156 163 103 29 13 4.9 2 1.4 1.6 20 6.6 39
26 157 172 78 28 13 4.8 1.9 1.4 1.6 5 5.6 43
27 95 208 71 27 13 4.7 1.9 1.4 1.6 3.3 6.3 80
28 67 126 90 26 28 4.6 1.8 1.4 1.6 3 4.5 121
29 65 108 77 27 52 4.6 1.7 1.4 1.6 3 15 172
30 47   76 25 22 4.3 1.7 1.4 1.6 3 64 120
31 60   81   15   1.7 1.4   2.9   210