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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 01573710 Conewago Creek near Falmouth, PA


Dauphin County, Pennsylvania
Hydrologic Unit Code 02050305
Latitude  40°08'57.5", Longitude  76°41'15.9" NAD83
Drainage area 47.5  square miles
Gage datum 310 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 2010-10-01 -> 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 85 44 133 122 196 28 20 21 165 27 116 53
2 76 43 111 106 51 90 20 99 155 53 49 62
3 68 74 65 144 59 58 16 29 22 56 88 50
4 69 143 112 94 51 32 16 114 19 36 28 36
5 50 94 55 54 84 48 30 47 86 31 44 33
6 57 70 54 106 103 39 18 22 134 21 63 42
7 53 99 51 143 152 25 44 42 356 20 37 96
8 47 80 51 99 76 25 65 32 223 22 35 73
9 65 51 73 58 54 30 50 29 170 27 33 43
10 121 47 159 50 45 24 36 28 121 33 40 52
11 67 87 122 48 53 59 49 25 51 288 28 79
12 106 70 127 78 89 45 56 21 36 120 45 45
13 100 70 89 90 99 46 81 114 33 28 65 33
14 56 60 112 56 92 33 28 39 24 37 31 43
15 47 69 74 90 89 22 23 51 35 29 24 59
16 75 162 59 105 123 24 23 20 28 27 68 125
17 56 113 60 50 79 29 16 18 19 21 65 81
18 48 73 55 41 50 26 19 19 65 18 52 173
19 40 56 91 63 147 30 14 35 71 30 47 41
20 112 59 72 54 108 43 14 30 20 28 28 34
21 46 67 106 44 46 40 15 51 17 19 27 140
22 36 84 161 38 59 26 24 75 22 18 77 85
23 140 81 73 45 56 28 208 29 124 18 117 145
24 136 141 67 38 40 86 150 18 55 26 80 134
25 138 190 61 80 32 35 267 16 43 18 103 178
26 88 81 53 50 29 22 80 27 28 17 47 50
27 81 81 56 48 31 28 28 15 38 38 74 74
28 87 100 102 37 34 40 34 143 53 40 39 127
29 49 89 94 45 38 24 30 24 35 204 37 111
30 47   104 173 42 21 23 16 46 211 47 80
31 115   129   29   23 18   82   62