Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins

USGS Daily Statistics for Maryland

Click to hide state-specific text

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 01578310 SUSQUEHANNA RIVER AT CONOWINGO, MD


Harford County, Maryland
Hydrologic Unit Code 02050306
Latitude  39°39'28.4", Longitude  76°10'28.0" NAD83
Drainage area 27,100  square miles
Gage datum 4.16 feet above NAVD88
Output formats
HTML table of all data
Tab-separated data
Reselect output format

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 1967-10-01 -> 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 40,300 44,800 59,900 83,900 55,200 38,200 29,700 17,300 14,100 26,400 33,700 52,400
2 48,700 43,900 58,500 86,400 56,400 37,700 29,000 17,600 17,400 24,200 33,600 53,200
3 49,900 44,500 60,000 93,300 55,800 35,900 27,400 19,400 17,700 22,900 32,100 55,200
4 50,000 49,800 62,300 98,800 51,300 34,100 22,200 19,400 16,000 22,000 29,400 54,000
5 48,400 54,700 62,000 97,300 52,100 33,700 24,600 19,100 15,700 21,000 28,900 50,800
6 44,100 50,700 71,300 96,300 51,300 33,500 23,400 16,900 16,500 19,800 29,500 49,400
7 45,800 46,000 71,400 95,200 53,400 33,000 23,600 17,100 17,600 19,900 27,100 48,200
8 44,800 44,700 68,100 91,000 53,300 33,400 22,300 16,300 26,600 20,700 27,500 49,300
9 44,400 44,400 63,500 82,500 50,200 33,000 21,600 15,400 28,100 20,400 30,000 47,500
10 48,000 42,800 63,800 79,300 47,300 30,100 20,500 15,900 25,400 21,400 32,800 46,600
11 46,000 38,800 67,600 78,600 46,700 28,300 18,900 18,500 24,600 21,900 34,600 46,300
12 43,100 40,400 69,900 79,200 50,400 27,800 18,200 18,700 22,900 21,200 35,300 48,700
13 41,600 41,700 66,700 74,500 53,300 27,500 18,700 18,800 20,700 19,700 36,900 50,700
14 43,600 41,800 68,500 72,600 53,900 26,600 19,000 19,200 19,000 20,900 36,800 54,400
15 46,200 43,700 71,700 72,100 55,000 27,300 20,300 18,700 18,400 19,800 36,800 54,300
16 46,100 46,800 74,700 74,900 56,700 26,800 19,100 18,400 18,100 20,000 36,400 51,600
17 43,700 46,700 75,800 78,800 57,100 28,000 19,100 17,900 16,600 20,200 37,400 50,300
18 41,800 45,400 73,000 81,200 54,700 30,100 19,200 17,000 18,300 20,500 38,400 49,800
19 40,600 48,700 70,000 76,200 54,100 29,800 17,700 16,200 25,100 23,600 40,000 49,600
20 47,100 51,000 69,500 68,400 52,400 28,000 17,100 18,700 27,000 25,900 39,700 48,400
21 50,900 53,000 71,600 64,600 50,600 28,000 18,000 18,500 22,100 27,900 40,400 46,500
22 47,000 53,400 77,400 63,000 48,000 36,800 17,800 17,700 19,900 29,600 37,900 47,800
23 42,500 56,700 80,100 61,300 45,300 48,100 18,700 16,900 18,100 31,100 38,000 49,800
24 41,900 60,100 83,100 58,300 45,000 48,200 19,400 15,900 21,500 29,500 36,600 49,100
25 48,100 65,200 84,000 57,000 42,300 43,300 21,400 15,800 21,600 29,500 36,100 45,100
26 52,200 69,900 79,600 57,900 40,300 37,400 23,500 14,100 26,000 28,600 36,800 54,900
27 53,600 68,200 78,100 56,200 38,100 31,700 22,400 14,100 31,200 27,800 36,900 55,800
28 58,000 62,000 78,800 57,900 37,900 29,200 20,100 13,100 30,900 28,500 40,600 52,100
29 55,300 64,000 81,300 57,500 37,700 31,600 19,200 12,900 30,400 30,700 47,800 50,300
30 50,700   84,900 55,200 37,800 31,200 19,300 12,900 28,100 33,700 50,100 48,800
31 46,700   83,700   38,500   18,000 13,600   34,100   45,700