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USGS Daily Statistics for Oregon

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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 14211820 COLUMBIA SLOUGH AT PORTLAND, OR


Multnomah County, Oregon
Hydrologic Unit Code 17090012
Latitude  45°38'21", Longitude 122°45'43" NAD27
Gage datum 1.53 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 1989-10-01 -> 2017-09-30)

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 -30.00 -4.40 158 153 100 44 93 67 90 105 138 123
2 25 137 142 136 72 42 74 78 86 89 115 132
3 161 267 139 122 114 11 128 83 88 87 95 125
4 232 221 172 115 77 14 98 76 88 96 93 104
5 235 208 136 108 97 13 128 76 83 94 104 184
6 234 181 131 107 80 -7.20 87 80 73 72 97 152
7 187 -115.00 126 115 79 35 97 87 72 75 100 149
8 134 132 126 148 106 49 107 91 59 52 108 87
9 153 142 116 144 73 40 110 72 58 73 102 81
10 150 145 95 109 85 84 99 75 53 84 131 103
11 95 149 124 110 109 50 66 64 52 90 114 125
12 157 133 136 120 64 41 82 55 71 96 104 118
13 161 180 154 123 4.5 58 80 61 79 92 91 131
14 202 162 173 88 53 101 51 70 63 74 85 161
15 214 177 164 102 45 92 75 91 80 53 90 145
16 165 150 146 66 18 98 91 94 56 73 84 148
17 161 122 147 71 -23.00 77 84 78 61 64 108 157
18 104 115 147 55 -21.00 64 113 64 68 84 129 146
19 75 98 112 87 -82.00 106 107 58 74 110 131 147
20 92 115 82 85 -33.00 138 99 66 76 100 124 138
21 112 136 146 92 -36.00 102 51 82 79 104 116 92
22 169 143 114 57 89 97 66 76 79 109 121 138
23 187 160 133 -99.00 34 96 97 88 64 105 120 155
24 198 171 122 -94.00 46 47 78 86 67 77 118 210
25 217 179 151 58 85 67 100 97 58 71 110 162
26 180 145 115 43 103 147 97 78 46 94 108 173
27 190 128 117 137 57 78 108 57 54 104 124 73
28 177 82 112 126 24 78 91 66 63 74 103 83
29 151 200 99 161 -8.50 74 74 52 67 102 110 145
30 160   100 158 -20.00 64 77 48 63 105 125 164
31 80   60   36   79 64   126   56