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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 04060500 IRON RIVER AT CASPIAN, MI


Iron County, Michigan
Hydrologic Unit Code 04030106
Latitude  46°03'31", Longitude  88°37'38" NAD27
Drainage area 92.1  square miles
Gage datum 1,438.70 feet above NAVD88
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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 1947-10-01 -> 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 65 61 61 110 163 102 101 68 69 75 76 69
2 65 61 61 110 158 93 99 70 67 72 75 69
3 64 61 61 111 153 91 87 69 69 77 76 68
4 63 61 62 113 143 89 81 72 66 79 74 69
5 63 61 62 113 136 87 77 71 70 79 73 70
6 63 61 61 117 137 85 76 67 70 78 73 69
7 63 61 65 128 136 83 76 70 69 75 71 68
8 62 61 65 140 139 83 82 70 68 77 71 67
9 62 61 64 151 140 83 94 68 67 75 71 67
10 62 61 65 169 134 84 86 67 71 75 73 66
11 62 61 70 179 127 88 79 66 70 75 76 66
12 62 61 74 177 123 94 77 64 69 73 76 66
13 62 61 74 185 119 90 76 63 70 72 76 67
14 62 61 77 188 114 83 75 64 69 71 74 68
15 62 61 79 180 109 81 75 62 68 74 74 68
16 62 61 78 180 107 83 73 73 70 74 73 68
17 62 60 81 191 108 88 70 77 69 72 73 68
18 62 60 83 211 104 89 70 70 66 75 73 67
19 62 61 81 209 104 87 72 67 66 73 72 66
20 61 61 77 197 105 87 72 66 65 69 71 65
21 61 62 75 195 103 94 75 66 73 69 71 65
22 61 62 76 193 101 89 80 69 74 72 70 65
23 61 62 79 196 99 83 79 71 72 75 70 65
24 61 62 78 196 101 83 76 71 80 77 70 65
25 61 61 80 187 104 85 73 74 81 79 71 65
26 62 61 85 178 99 87 74 69 82 77 70 65
27 61 61 90 181 96 88 73 69 89 77 69 64
28 61 61 92 177 95 86 73 71 85 80 68 64
29 61 60 93 172 93 83 69 71 79 79 70 64
30 61   97 168 92 81 69 68 75 77 69 66
31 61   108   99   69 71   76   66