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USGS Daily Statistics for Iowa

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Boating safety tips are available from the U.S. Coast Guard.

NOTE: Station Numbers for Iowa precipitation gages have changed (see list).


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 05454300 Clear Creek near Coralville, IA


Johnson County, Iowa
Hydrologic Unit Code 07080209
Latitude  41°40'36", Longitude  91°35'55" NAD27
Drainage area 98.1  square miles
Gage datum 647.48 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 1952-10-01 -> 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 42 38 80 112 118 108 158 62 40 36 60 44
2 48 35 95 106 110 103 101 49 31 40 66 47
3 42 36 140 89 107 103 64 44 31 39 54 40
4 42 44 143 94 116 103 70 39 41 33 50 39
5 35 47 121 91 128 111 104 46 51 46 46 46
6 34 47 85 98 101 94 155 73 54 76 41 44
7 38 59 83 76 111 89 98 63 42 58 37 39
8 37 68 122 74 118 113 112 78 38 58 34 39
9 32 85 156 82 107 137 141 57 41 56 38 37
10 31 67 197 96 149 130 125 88 54 57 43 36
11 34 62 146 95 133 89 113 56 36 39 38 37
12 46 54 119 89 105 128 92 68 33 34 41 37
13 60 57 172 95 131 141 120 58 49 32 39 35
14 34 51 152 102 134 143 126 60 55 38 37 49
15 35 47 115 99 109 209 89 45 48 37 36 53
16 43 52 103 109 115 144 69 98 31 32 51 46
17 52 63 102 117 195 188 79 62 50 45 58 40
18 37 68 117 170 146 104 112 43 62 66 44 37
19 47 85 185 132 139 110 122 37 46 46 40 34
20 51 111 185 134 90 134 85 101 60 36 47 34
21 42 136 122 144 87 105 82 66 83 34 51 36
22 53 124 123 123 90 143 93 42 61 35 45 35
23 58 104 123 99 103 148 78 48 54 53 44 37
24 54 101 100 128 125 123 79 39 52 44 40 39
25 42 110 88 145 121 94 66 53 63 38 40 48
26 38 93 90 121 119 97 64 61 76 43 42 45
27 41 97 86 109 140 109 87 76 42 38 52 51
28 32 83 87 109 151 115 58 100 34 39 46 63
29 34 104 94 111 232 105 53 77 43 42 42 56
30 41   107 117 140 185 57 50 40 62 45 68
31 41   126   112   81 39   46   54