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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 08078000 Chocolate Bayou nr Alvin, TX


Brazoria County, Texas
Hydrologic Unit Code 12040204
Latitude  29°22'16.7", Longitude  95°19'22.2" NAD27
Drainage area 87.7  square miles
Contributing drainage area 87.7  square miles
Gage datum 0.31 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 1958-10-01 -> 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
1 115 68 74 78 51 191 108 102 205 38 235 52
2 87 55 87 59 82 172 131 145 208 41 220 44
3 97 72 74 49 83 177 160 155 171 34 145 101
4 90 122 40 73 132 187 151 143 131 30 103 106
5 104 184 34 107 145 188 139 133 132 43 85 84
6 109 167 61 143 104 163 122 97 142 56 63 72
7 154 103 68 114 63 150 132 76 123 64 58 80
8 159 68 53 93 81 114 163 61 102 72 60 86
9 155 67 37 109 106 109 191 61 94 65 47 97
10 150 121 64 102 147 129 183 59 104 97 34 102
11 117 179 68 80 216 164 151 58 158 96 43 105
12 113 182 79 104 233 168 152 54 184 113 65 130
13 106 130 90 95 246 170 133 50 201 151 94 163
14 92 81 106 59 252 130 113 47 191 147 132 173
15 94 62 124 68 184 104 96 63 158 81 120 150
16 102 57 124 66 120 149 109 125 134 106 87 121
17 132 56 117 89 105 136 99 142 99 141 87 119
18 128 59 82 149 96 152 91 136 94 141 125 121
19 208 59 54 202 116 177 85 120 124 170 121 132
20 204 42 61 188 132 205 107 107 177 171 125 109
21 143 117 83 132 136 205 115 96 163 158 114 81
22 141 134 117 90 120 190 100 94 199 161 95 99
23 186 88 112 52 106 163 93 92 161 109 66 87
24 190 75 105 53 97 148 103 73 124 84 76 104
25 168 100 84 76 93 193 156 67 86 121 87 106
26 123 92 67 87 87 254 397 120 48 145 91 63
27 105 104 47 84 117 226 356 186 68 143 99 64
28 126 95 45 98 165 162 255 229 49 124 80 62
29 112 22 60 69 187 116 174 313 36 106 73 71
30 118   101 55 153 104 144 222 34 87 60 79
31 87   92   184   114 213   137   112