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USGS Daily Statistics for Michigan

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NOTE: During winter months, stage and discharge may be significantly affected by backwater from ice, resulting in incorrect discharge data. Consequently, discharge data may not be displayed during periods of ice effect. Click here for more information.

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 04159130 ST. CLAIR RIVER AT PORT HURON, MI


St. Clair County, Michigan
Hydrologic Unit Code 04090001
Latitude  42°59'13", Longitude  82°25'29" NAD27
Drainage area 222,400  square miles
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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 2008-10-01 -> 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
1 198,000 177,000 189,000 199,000 199,000 204,000 205,000 208,000 208,000 208,000 207,000 202,000
2 197,000 180,000 191,000 199,000 202,000 205,000 205,000 205,000 207,000 206,000 206,000 201,000
3 193,000 175,000 190,000 199,000 204,000 206,000 204,000 204,000 205,000 202,000 205,000 201,000
4 190,000 172,000 191,000 200,000 206,000 203,000 202,000 206,000 205,000 203,000 202,000 200,000
5 187,000 170,000 191,000 203,000 206,000 205,000 199,000 205,000 206,000 202,000 201,000 203,000
6 189,000 171,000 189,000 203,000 206,000 207,000 201,000 208,000 208,000 199,000 201,000 202,000
7 188,000 169,000 190,000 203,000 206,000 206,000 204,000 208,000 208,000 203,000 205,000 204,000
8 188,000 171,000 190,000 200,000 204,000 205,000 203,000 206,000 211,000 202,000 205,000 200,000
9 184,000 170,000 192,000 200,000 203,000 205,000 205,000 204,000 211,000 205,000 202,000 197,000
10 184,000 170,000 194,000 199,000 205,000 204,000 203,000 206,000 207,000 205,000 205,000 198,000
11 183,000 172,000 194,000 200,000 205,000 203,000 205,000 206,000 207,000 203,000 205,000 198,000
12 187,000 173,000 196,000 199,000 205,000 206,000 204,000 206,000 207,000 202,000 203,000 201,000
13 184,000 174,000 194,000 197,000 204,000 209,000 202,000 208,000 208,000 202,000 201,000 201,000
14 182,000 173,000 199,000 202,000 203,000 207,000 203,000 208,000 209,000 204,000 203,000 201,000
15 178,000 172,000 200,000 201,000 204,000 205,000 202,000 207,000 209,000 204,000 202,000 197,000
16 179,000 178,000 195,000 197,000 205,000 203,000 203,000 204,000 207,000 208,000 205,000 199,000
17 179,000 178,000 195,000 200,000 206,000 204,000 205,000 203,000 205,000 206,000 203,000 199,000
18 178,000 174,000 201,000 200,000 203,000 205,000 204,000 207,000 208,000 206,000 200,000 200,000
19 180,000 179,000 199,000 205,000 202,000 206,000 204,000 207,000 203,000 203,000 199,000 199,000
20 187,000 182,000 197,000 201,000 203,000 205,000 203,000 203,000 201,000 204,000 205,000 198,000
21 179,000 181,000 200,000 200,000 203,000 204,000 206,000 206,000 200,000 206,000 205,000 199,000
22 176,000 181,000 201,000 203,000 205,000 203,000 204,000 209,000 210,000 205,000 207,000 200,000
23 176,000 183,000 199,000 202,000 205,000 202,000 203,000 208,000 207,000 204,000 204,000 195,000
24 173,000 186,000 194,000 204,000 207,000 203,000 205,000 204,000 204,000 201,000 200,000 196,000
25 175,000 186,000 195,000 204,000 203,000 203,000 205,000 204,000 202,000 205,000 199,000 197,000
26 173,000 186,000 198,000 206,000 204,000 202,000 203,000 206,000 203,000 207,000 203,000 198,000
27 173,000 183,000 199,000 203,000 204,000 204,000 204,000 205,000 204,000 205,000 206,000 197,000
28 177,000 185,000 202,000 206,000 204,000 204,000 206,000 207,000 206,000 206,000 205,000 195,000
29 179,000 208,000 201,000 205,000 204,000 204,000 208,000 204,000 209,000 209,000 203,000 196,000
30 176,000   201,000 203,000 204,000 205,000 210,000 206,000 210,000 208,000 202,000 194,000
31 173,000   198,000   205,000   209,000 210,000   205,000   195,000