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USGS Surface-Water 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 01184000 CONNECTICUT RIVER AT THOMPSONVILLE, CT


Hartford County, Connecticut
Hydrologic Unit Code 01080205
Latitude  41°59'14", Longitude  72°36'21" NAD27
Drainage area 9,660  square miles
Contributing drainage area 9,660  square miles
Gage datum 27.75 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 1927-10-01 -> 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 16,500 14,100 16,400 40,300 37,700 18,200 11,800 8,770 6,930 8,860 14,300 18,600
2 15,600 13,500 15,700 42,500 36,700 18,800 11,700 8,590 6,870 9,020 13,800 19,000
3 15,600 13,500 16,000 43,800 36,000 18,800 11,700 8,400 6,970 9,460 14,200 18,700
4 15,700 14,000 16,300 44,700 35,900 18,300 11,200 7,900 6,660 9,620 15,100 18,200
5 15,000 14,100 16,700 45,800 34,900 17,400 9,820 8,050 6,370 9,480 14,900 17,700
6 14,800 14,000 17,100 46,400 33,300 16,500 10,000 8,080 6,380 9,350 14,700 17,600
7 14,900 13,900 18,600 46,200 31,600 16,300 9,600 7,930 6,550 9,010 14,800 17,300
8 15,100 13,900 19,400 46,000 29,600 16,100 9,330 8,220 6,600 9,520 15,000 17,800
9 15,200 13,600 19,700 45,100 28,200 15,200 9,190 8,260 6,650 10,500 15,300 17,800
10 15,900 12,900 20,700 43,400 27,300 15,000 9,130 8,040 6,560 10,500 15,500 17,100
11 16,300 12,700 21,200 42,900 27,000 14,700 9,450 8,400 6,530 9,890 15,700 16,900
12 16,000 13,100 21,900 43,600 27,200 14,500 9,790 8,910 6,930 9,410 15,200 17,800
13 15,900 12,900 22,500 44,200 27,100 14,300 9,660 8,710 6,910 9,080 15,400 18,500
14 16,300 13,100 23,300 44,600 26,800 14,600 9,630 8,820 7,050 9,040 15,800 18,300
15 16,000 12,900 24,100 44,600 26,600 14,400 9,410 8,550 6,920 9,860 15,600 17,800
16 15,300 13,200 24,400 44,900 26,200 14,200 9,190 7,590 7,090 10,900 15,500 16,800
17 14,700 13,200 25,000 46,900 25,600 13,600 9,100 7,280 7,580 11,000 15,600 16,200
18 14,100 13,200 26,700 47,600 25,100 13,400 9,000 7,460 7,970 11,600 15,600 16,500
19 14,200 13,600 27,900 47,700 24,600 13,100 8,890 8,430 8,270 11,700 15,300 17,100
20 14,600 13,600 28,500 47,200 23,800 12,700 8,660 7,970 8,110 11,800 15,300 16,900
21 14,600 13,800 29,000 46,200 23,600 12,300 8,350 7,170 8,610 12,600 16,400 16,400
22 14,500 14,300 30,100 45,200 23,300 11,800 8,550 6,960 9,420 13,100 16,700 17,200
23 14,400 15,600 30,600 44,500 22,200 11,100 8,900 6,970 9,580 12,700 16,500 17,200
24 14,400 16,100 30,300 44,100 21,600 11,300 9,240 6,720 9,160 12,600 15,800 17,300
25 15,700 17,000 29,800 43,800 21,300 11,400 8,730 6,480 8,710 13,200 15,600 17,600
26 17,400 17,800 30,300 43,200 21,000 11,300 8,130 6,380 8,590 14,100 15,900 17,700
27 17,900 17,600 31,500 42,600 20,300 11,200 7,880 6,360 8,450 14,000 16,400 17,700
28 17,600 16,900 33,000 41,000 19,500 11,600 7,590 6,350 8,380 14,100 17,000 17,500
29 16,500 17,400 34,800 39,900 18,900 11,900 7,580 7,140 8,570 14,900 17,900 16,800
30 15,300   36,700 38,800 18,800 11,800 8,410 7,300 8,830 14,900 18,600 16,500
31 14,400   38,300   18,400   8,990 7,270   14,900   16,800