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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 04040260 GRATIOT RIVER AT 5 MILE POINT ROAD NEAR AHMEEK, MI


Keweenaw County, Michigan
Hydrologic Unit Code 04020103
Latitude  47°19'22", Longitude  88°24'19" NAD27
Drainage area 14.9  square miles
Gage datum 820 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 2013-10-01 -> 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 15 12 13 39 151 29 10 3.3 28 9.2 37 41
2 15 12 12 44 175 21 8.7 3.4 24 8 31 36
3 14 12 12 62 104 32 6.9 3.4 27 30 29 30
4 14 12 11 63 91 30 6 6.2 15 33 25 34
5 13 11 11 55 80 24 5.3 5.6 16 21 32 47
6 13 11 12 42 57 21 6 4.5 16 15 30 42
7 13 11 23 38 46 21 8.1 3.8 11 14 21 37
8 13 11 24 42 40 17 6.3 3.5 9.3 18 20 28
9 13 11 25 67 40 13 5.7 3.6 7.4 14 18 24
10 13 11 22 70 36 11 7.4 5.3 19 11 15 22
11 13 11 19 46 29 10 6.1 8.4 26 9.5 15 26
12 12 11 23 53 33 8.4 52 8 13 10 20 25
13 12 11 30 118 31 9.1 29 5.6 9.3 10 31 27
14 12 10 34 134 24 11 18 5.3 7.7 11 23 33
15 12 10 38 143 21 13 11 4.4 6.8 15 27 36
16 12 10 51 159 21 13 7.3 4.6 12 14 40 44
17 12 10 52 159 22 37 10 5.3 12 26 33 44
18 12 11 40 138 83 33 9.4 6.1 9 42 39 33
19 12 13 34 110 49 22 8.4 15 11 24 35 28
20 12 16 28 101 28 14 6.4 15 8.6 16 27 22
21 13 31 23 108 27 11 22 21 15 12 22 21
22 19 34 19 81 25 9.1 14 11 12 11 18 20
23 21 27 17 71 19 8 7.6 7.6 12 10 18 23
24 20 20 16 68 16 7.1 5.9 7.4 8.8 12 26 47
25 19 17 16 74 24 18 5.1 12 7.4 16 41 35
26 17 15 16 127 36 32 4.5 8.5 15 15 32 26
27 16 14 18 130 33 18 4.2 9.3 19 87 27 22
28 15 14 21 81 26 11 3.8 20 23 71 32 20
29 14 15 25 74 39 9.8 3.5 10 16 50 74 18
30 13   31 90 34 10 3.3 8.5 12 42 44 17
31 13   41   42   3.1 19   47   16