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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 14211550 JOHNSON CREEK AT MILWAUKIE, OR


Clackamas County, Oregon
Hydrologic Unit Code 17090012
Latitude  45°27'11", Longitude 122°38'31" NAD27
Drainage area 53.17  square miles
Gage datum 0.00 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 -> 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
1 173 168 140 94 58 39 25 18 18 31 93 147
2 189 136 128 86 60 43 23 18 18 26 61 165
3 174 110 139 88 61 42 22 18 18 25 50 172
4 140 113 133 79 56 46 22 18 19 26 50 155
5 121 133 117 83 56 46 21 19 19 25 57 152
6 118 174 119 79 51 40 21 18 22 23 65 134
7 136 172 123 83 50 38 20 19 19 23 84 170
8 137 171 108 94 52 36 21 18 20 25 65 176
9 139 160 123 85 51 38 23 18 19 31 57 156
10 170 102 134 83 51 38 21 18 19 35 56 173
11 158 99 111 76 50 38 20 18 18 34 93 177
12 146 109 116 73 44 35 20 19 18 27 78 167
13 164 100 126 78 43 33 20 18 18 30 85 162
14 156 99 123 81 48 30 20 17 19 30 72 189
15 159 110 163 96 49 30 19 17 24 33 74 138
16 175 134 137 90 50 30 19 18 21 31 73 138
17 191 150 119 86 72 30 21 19 25 33 95 158
18 223 159 111 79 70 28 20 18 26 41 106 142
19 205 163 108 69 57 27 19 18 24 35 160 106
20 186 168 103 71 51 32 19 19 24 39 143 140
21 158 150 102 61 49 28 19 19 20 38 112 133
22 135 122 112 64 54 27 20 20 19 46 121 125
23 133 142 110 80 51 26 20 20 19 37 121 119
24 147 170 108 84 46 28 19 20 21 38 160 148
25 143 141 110 76 45 27 18 22 20 35 161 133
26 122 112 96 72 41 26 18 20 20 39 139 132
27 108 118 103 76 42 26 18 19 20 62 117 165
28 126 130 102 72 41 24 18 18 24 49 126 208
29 163 115 123 65 41 26 18 19 27 50 119 217
30 185   120 67 37 23 18 20 32 54 127 204
31 196   95   41   18 19   81   174