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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 05452200 Walnut Creek near Hartwick, IA


Poweshiek County, Iowa
Hydrologic Unit Code 07080208
Latitude  41°50'06", Longitude  92°23'10" NAD27
Drainage area 70.9  square miles
Gage datum 786.48 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 1949-10-01 -> 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 23 40 48 83 92 75 105 33 44 23 32 26
2 23 27 62 69 75 68 115 26 51 33 33 25
3 22 28 64 68 71 71 62 25 41 25 28 23
4 21 29 74 69 69 61 70 25 48 21 42 23
5 20 28 69 70 71 79 54 47 30 31 29 26
6 22 30 77 61 82 65 63 37 28 24 25 24
7 24 37 71 58 77 73 53 23 35 21 23 23
8 23 36 88 53 72 97 61 29 25 25 23 22
9 21 32 83 56 79 105 97 49 25 70 22 22
10 19 41 150 58 101 106 63 57 23 31 24 21
11 19 35 95 65 81 74 58 32 18 24 25 21
12 49 29 83 85 81 132 47 46 17 24 29 21
13 30 32 139 68 112 105 47 33 27 21 26 23
14 23 29 94 69 82 109 65 35 20 29 24 43
15 27 28 72 68 70 95 40 37 28 24 23 27
16 31 31 75 81 97 93 38 66 19 21 26 26
17 34 36 82 66 81 118 54 23 25 26 32 24
18 25 85 93 94 97 114 77 34 35 30 34 22
19 30 77 135 78 73 119 73 21 28 21 29 23
20 34 99 100 84 73 73 55 31 37 19 27 21
21 30 100 79 73 96 79 40 24 30 20 26 22
22 31 58 91 64 75 96 35 25 21 25 24 23
23 28 57 75 72 75 81 31 21 19 32 23 23
24 29 48 66 90 98 112 28 19 21 25 22 24
25 24 60 58 88 90 65 50 19 38 23 24 30
26 28 72 59 80 100 63 40 43 27 23 26 27
27 28 56 61 98 121 64 42 89 22 22 33 33
28 21 57 66 77 136 54 62 52 19 22 28 31
29 26 48 77 101 90 71 50 61 27 27 27 31
30 26   112 97 87 122 38 31 23 32 27 45
31 23   109   82   40 22   27   24