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USGS Daily Statistics for Connecticut

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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 01172010 CONNECTICUT R AT I-391 BRIDGE AT HOLYOKE, MA


Hampden County, Massachusetts
Hydrologic Unit Code 01080201
Latitude  42°11'29.29", Longitude  72°36'33.52" NAD83
Drainage area 8,332  square miles
Gage datum 32.42 feet above NAVD88
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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 2002-10-01 -> 2024-09-30)

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 18,300 13,900 15,500 34,500 32,000 15,300 13,800 10,200 8,240 10,200 21,400 20,500
2 18,000 13,200 14,800 36,700 32,500 15,000 14,200 9,970 8,430 11,200 19,500 22,400
3 17,600 12,800 15,700 36,900 30,500 14,600 15,900 9,650 8,720 11,600 18,800 22,700
4 17,700 13,400 15,500 36,700 28,900 14,200 15,800 9,590 7,830 11,300 17,800 22,000
5 16,900 14,800 14,800 38,200 27,500 13,500 14,200 10,400 7,070 10,400 16,800 20,000
6 16,600 15,500 14,300 36,800 26,500 13,100 13,000 10,400 7,760 9,480 15,700 17,600
7 16,500 16,000 15,300 34,400 24,900 14,600 11,300 9,760 8,630 8,040 15,500 16,200
8 16,500 15,100 17,000 34,200 22,800 15,200 9,950 9,630 9,510 7,880 14,800 17,200
9 16,700 13,500 18,100 35,300 21,400 14,300 10,100 9,210 9,530 11,000 14,600 17,300
10 16,400 12,500 19,200 34,300 20,200 12,700 11,000 9,100 8,640 11,400 14,100 16,600
11 16,300 12,700 18,900 34,300 19,200 13,100 13,300 9,580 7,710 9,250 14,200 16,600
12 16,700 12,200 20,000 35,300 19,000 14,500 13,500 10,100 7,240 8,970 13,700 18,600
13 19,000 11,800 20,300 35,800 19,000 14,800 13,400 9,780 7,200 8,750 14,300 20,700
14 22,600 12,300 21,600 38,200 18,300 14,800 13,000 9,820 7,670 8,390 15,300 19,600
15 23,500 12,100 22,600 40,100 19,300 14,000 12,100 9,200 7,160 10,700 15,200 18,700
16 22,100 12,300 22,400 41,600 20,200 12,900 11,300 7,850 6,790 13,700 15,500 17,300
17 19,500 12,200 22,200 42,800 20,900 12,000 10,600 7,510 6,020 14,600 16,300 17,300
18 17,500 13,200 22,000 41,600 22,100 11,400 10,900 7,810 6,600 14,400 17,900 17,500
19 17,800 14,700 22,600 39,400 21,300 11,800 11,700 7,690 8,190 13,300 17,200 17,500
20 17,600 14,100 23,400 37,200 20,300 11,800 11,800 7,210 7,200 12,600 16,100 17,100
21 17,000 13,300 23,300 36,400 20,100 10,800 11,100 7,150 6,220 12,700 16,800 16,400
22 16,000 13,000 22,900 35,300 18,400 10,500 10,900 7,550 5,810 13,500 16,200 17,600
23 15,100 13,800 22,800 35,100 17,600 10,200 11,800 8,830 6,330 12,900 15,800 18,600
24 14,500 14,600 23,600 36,400 17,200 10,900 12,700 8,130 6,790 13,400 15,600 21,800
25 15,700 16,400 23,100 36,000 17,200 10,300 12,400 7,580 6,940 14,100 15,300 24,200
26 16,600 18,800 23,000 33,500 17,500 10,900 11,900 6,510 6,880 15,900 14,800 25,900
27 17,000 18,700 23,600 33,200 18,100 11,400 11,100 6,160 6,910 17,600 15,000 25,600
28 16,000 17,200 24,700 32,400 17,300 11,900 10,200 6,830 6,670 19,600 16,200 23,700
29 14,500 19,300 27,400 31,200 16,500 13,900 9,910 9,790 8,100 21,700 17,600 22,200
30 13,700   31,100 31,100 17,000 14,600 10,500 10,500 9,590 22,800 18,700 22,000
31 13,500   33,600   16,600   10,900 9,250   23,200   20,300