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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 89 45 141 128 196 28 20 21 165 27 116 53
2 80 43 118 113 51 90 20 99 155 53 49 62
3 72 78 69 154 59 58 16 29 22 56 88 50
4 73 153 119 98 51 32 16 114 19 36 28 36
5 52 99 58 56 84 48 30 47 86 31 44 33
6 60 73 51 95 103 39 18 22 134 21 63 42
7 56 103 52 141 152 25 44 42 356 20 37 96
8 50 84 53 100 76 25 65 32 223 22 35 73
9 69 53 76 59 54 30 50 29 170 27 33 46
10 130 47 169 51 45 24 36 28 121 33 40 55
11 72 91 130 49 53 59 49 25 51 288 28 76
12 114 73 136 79 89 45 56 21 36 120 45 38
13 106 72 94 93 99 46 81 114 33 28 65 33
14 59 60 119 57 92 33 28 39 24 37 31 45
15 50 72 78 94 89 22 23 51 35 29 24 63
16 80 162 63 105 123 24 23 20 28 27 68 133
17 60 107 61 50 79 29 16 18 19 21 65 85
18 50 75 57 41 50 26 19 19 65 18 52 184
19 42 58 97 63 147 30 14 35 71 30 47 42
20 120 61 76 54 108 43 14 30 20 28 28 35
21 49 71 112 44 46 40 15 51 17 19 27 149
22 38 89 172 38 59 26 24 75 22 18 77 90
23 150 86 77 45 56 28 208 29 124 18 117 155
24 146 150 71 38 40 86 150 18 55 26 80 143
25 147 203 64 80 32 35 267 16 43 18 103 190
26 94 86 56 50 29 22 80 27 28 17 47 52
27 86 85 59 48 31 28 28 15 38 38 74 79
28 93 106 109 37 34 40 34 143 53 40 39 135
29 52 89 101 45 38 24 30 24 35 204 37 116
30 50   111 173 42 21 23 16 46 211 47 83
31 123   138   29   23 18   82   65