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USGS Daily Statistics for Pennsylvania

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[!] Over the next year, the USGS Pennsylvania Water Science Center will be updating the geodetic vertical elevation (gage datum) for many locations. Click HERE for additional information including a current list of streamgages with upcoming datum changes. This update in gage datum does not affect the location of the streamgage, nor the observed local gage height or discharge recorded at the streamgage.


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 01473900 Wissahickon Creek at Fort Washington, PA


Montgomery County, Pennsylvania
Hydrologic Unit Code 02040203
Latitude  40°07'26", Longitude  75°13'13" NAD27
Drainage area 40.8  square miles
Gage datum 139.98 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 1960-10-01 -> 2024-09-30)

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
1 107 64 101 100 117 48 51 79 111 97 46 85
2 78 66 157 151 63 57 35 97 116 53 35 50
3 78 86 99 130 65 64 30 54 48 41 48 91
4 63 81 97 91 63 89 27 149 36 42 42 50
5 63 86 116 66 71 61 31 53 27 36 52 49
6 89 110 133 84 73 60 50 35 77 28 47 56
7 101 93 145 102 103 96 34 44 71 30 53 81
8 87 93 111 105 68 61 42 37 133 57 80 65
9 110 59 96 81 64 65 51 59 44 47 41 106
10 109 67 123 64 48 77 76 71 40 29 49 75
11 71 94 114 68 58 69 55 47 42 45 35 150
12 95 80 130 89 69 88 62 35 41 38 49 116
13 71 148 163 115 75 111 60 85 39 26 59 71
14 117 79 104 74 56 62 47 69 39 34 38 93
15 68 71 82 183 63 47 45 35 64 46 39 68
16 66 103 80 180 101 104 48 27 31 39 79 123
17 71 77 84 90 77 118 47 26 26 38 67 119
18 96 67 92 67 74 50 47 30 65 33 46 132
19 70 59 93 81 82 50 37 60 53 59 55 64
20 90 65 119 80 56 121 31 31 34 45 56 55
21 60 73 112 64 47 57 35 62 37 28 34 116
22 49 96 102 67 63 45 47 86 32 30 65 60
23 78 99 139 85 49 44 69 42 57 32 74 115
24 88 111 114 68 47 68 58 27 52 47 61 108
25 147 116 94 61 42 38 61 33 45 46 73 115
26 84 96 72 68 62 54 41 27 40 46 64 118
27 69 84 78 92 74 74 51 58 38 131 74 90
28 67 88 104 72 63 120 79 192 139 105 83 115
29 52 67 107 81 87 38 43 50 101 107 56 96
30 57   149 130 52 34 32 41 49 77 96 65
31 71   99   42   40 33   50   62