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USGS Daily Statistics for Oregon

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 -> 2021-09-30)

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
1 170 168 136 94 56 38 24 18 18 30 88 143
2 185 136 125 85 58 42 23 17 18 25 58 160
3 171 110 136 88 60 40 22 17 18 25 48 167
4 139 112 130 77 54 44 21 17 18 26 48 151
5 120 131 114 82 54 44 21 19 19 25 55 147
6 119 171 117 79 49 38 21 18 21 23 64 131
7 136 169 120 90 48 37 20 18 19 23 81 166
8 138 168 106 102 50 37 20 18 19 24 62 172
9 139 157 121 91 49 39 23 17 19 30 56 153
10 168 101 131 85 49 38 21 18 19 36 55 169
11 161 98 109 79 48 37 20 18 18 34 90 173
12 150 108 113 74 43 34 20 19 18 28 76 165
13 165 98 122 78 42 32 20 17 18 30 83 160
14 157 97 121 80 46 31 19 17 19 30 70 184
15 158 110 159 93 48 31 19 17 24 32 73 135
16 177 137 133 88 48 31 19 17 22 30 71 135
17 190 149 117 83 69 31 20 18 25 33 93 154
18 223 157 109 76 68 29 20 18 28 40 103 139
19 204 160 105 67 57 27 19 18 25 35 156 105
20 184 164 99 69 51 32 19 19 24 38 139 139
21 157 147 98 59 49 28 19 19 20 37 109 134
22 136 119 106 62 54 27 19 20 19 44 118 126
23 134 139 105 77 51 26 19 20 20 36 118 119
24 151 166 104 81 46 28 19 19 22 37 155 146
25 144 138 107 74 44 27 18 22 21 34 156 131
26 124 109 93 70 41 26 18 20 20 38 135 130
27 111 115 99 73 41 27 18 18 20 59 113 162
28 137 127 98 69 40 25 18 18 23 47 122 203
29 167 105 119 63 40 26 18 18 27 47 116 211
30 187   116 65 36 23 18 20 31 52 123 198
31 196   94   40   18 18   77   170