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