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USGS Daily Statistics for Pennsylvania

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[!] During cold weather, stage and discharge values may be affected by ice at some streamgages. Streamgages experiencing ice conditions will have the discharge record temporarily disabled to prevent the display of erroneous discharge values. Display of discharge record will resume when it is determined that ice conditions are no longer present. Adjustment of data affected by ice can only be done after detailed analysis.



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 01478120 East Branch White Clay Creek at Avondale, PA


Chester County, Pennsylvania
Hydrologic Unit Code 02040205
Latitude  39°49'42", Longitude  75°46'52" NAD27
Drainage area 11.3  square miles
Gage datum 270.00 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 6 - 7 years of record in, ft3/s   (Calculation Period 2007-10-01 -> 2014-09-30)

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 17 27 21 19 40 11 21 17 7.8 54 12 21
2 16 24 19 18 18 13 10 13 7.5 12 11 14
3 14 21 20 21 18 12 9.9 8.9 8.7 10 10 31
4 13 16 19 19 20 13 9.7 8.4 7.4 9.8 14 13
5 14 29 20 17 17 15 8.8 7.9 8.1 10 11 12
6 20 21 24 16 16 12 8.5 7.8 50 9.1 10 13
7 21 17 28 16 29 33 8.6 7.6 87 9.4 9.9 27
8 15 18 29 18 16 15 10 7.6 15 8.8 9.8 27
9 14 16 22 19 19 12 11 11 11 8.5 9.5 46
10 14 15 57 16 16 22 10 9.3 10 9.9 9.3 17
11 28 16 28 17 20 21 8.9 8.1 25 39 9.1 21
12 31 15 31 20 17 14 22 8.4 14 11 9.4 46
13 16 46 49 21 15 19 34 20 11 9.5 11 24
14 16 23 23 18 15 13 12 13 9.1 10 10 17
15 16 19 21 29 22 11 10 9.3 8.5 11 13 18
16 22 18 21 30 27 11 10 8.1 8.2 10 13 25
17 21 20 18 24 19 15 8.8 7.6 8.3 12 11 18
18 21 19 18 17 17 13 8.4 8.6 11 14 9.8 15
19 19 18 24 17 16 16 9.4 10 9.7 12 11 18
20 16 16 24 20 17 17 9.6 7.8 7.9 12 11 15
21 14 19 19 17 15 12 8.4 7.3 7.8 8.8 9.9 35
22 13 21 22 20 14 11 7.9 12 10 8.3 15 16
23 14 24 19 22 14 10 14 8.1 26 8.1 33 27
24 15 24 18 16 14 9.9 12 7.4 19 29 12 16
25 31 29 17 16 13 9.9 17 9.8 9.0 14 11 15
26 16 19 18 19 12 9.7 10 7.6 8.4 11 12 55
27 16 20 16 16 15 14 9.6 15 10 25 25 34
28 15 19 16 18 14 15 11 91 11 28 12 20
29 14 30 25 17 13 11 9.6 10 11 53 16 26
30 14   35 78 12 9.5 8.3 13 15 25 14 18
31 23   24   12   8.6 8.0   14   18