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USGS Daily Statistics for Maine

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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 01029500 East Branch Penobscot River at Grindstone, Maine


Penobscot County, Maine
Hydrologic Unit Code 01020002
Latitude  45°43'49", Longitude  68°35'22" NAD83
Drainage area 837  square miles
Contributing drainage area 1,086.0  square miles
Gage datum 294.74 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 water year of record in, ft3/s   (Calculation Period 1902-10-01 -> 2022-09-30)

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 1,330 1,020 1,130 2,830 7,320 2,930 1,710 966 965 1,240 1,800 2,060
2 1,300 993 1,120 3,030 7,060 2,910 1,690 921 932 1,240 1,720 2,050
3 1,280 1,010 1,100 3,240 6,750 2,870 1,610 925 913 1,160 1,770 1,910
4 1,270 1,070 1,100 3,430 6,670 2,750 1,540 911 949 1,150 2,110 1,840
5 1,240 1,090 1,090 3,550 6,520 2,670 1,560 914 937 1,140 2,090 1,710
6 1,220 1,100 1,090 3,570 6,200 2,560 1,540 911 895 1,110 1,970 1,670
7 1,240 1,080 1,110 3,570 6,000 2,490 1,550 896 882 1,120 1,880 1,800
8 1,210 1,060 1,120 3,750 5,850 2,540 1,520 907 863 1,170 1,900 1,770
9 1,170 1,050 1,140 3,810 5,740 2,490 1,560 911 848 1,180 2,080 1,680
10 1,180 1,020 1,180 3,880 5,630 2,350 1,470 930 910 1,210 2,120 1,690
11 1,170 1,000 1,210 3,890 5,470 2,260 1,450 1,000 913 1,170 2,020 1,700
12 1,160 1,010 1,240 3,940 5,160 2,260 1,360 1,020 1,010 1,070 1,920 1,790
13 1,160 1,050 1,320 4,120 5,050 2,280 1,330 971 1,010 1,100 1,820 1,830
14 1,140 1,040 1,390 4,510 4,910 2,260 1,280 981 993 1,100 1,830 1,910
15 1,180 1,020 1,370 4,840 4,710 2,170 1,250 967 1,000 1,110 1,840 1,820
16 1,180 1,000 1,350 5,110 4,560 2,150 1,300 932 980 1,250 1,880 1,750
17 1,150 996 1,380 5,250 4,360 2,100 1,240 897 966 1,370 1,950 1,650
18 1,130 1,000 1,450 5,550 4,270 2,140 1,200 901 982 1,440 1,900 1,610
19 1,140 995 1,530 5,730 4,240 2,210 1,180 953 910 1,340 1,820 1,590
20 1,140 985 1,700 5,890 4,160 2,090 1,190 960 885 1,300 1,820 1,550
21 1,130 988 1,740 6,180 4,030 2,040 1,160 918 880 1,430 1,850 1,560
22 1,120 1,010 1,800 6,460 3,800 1,950 1,160 900 875 1,460 1,810 1,620
23 1,110 1,030 1,870 6,680 3,690 1,940 1,150 887 909 1,360 1,800 1,570
24 1,090 1,050 1,880 6,970 3,520 1,860 1,110 861 962 1,510 1,790 1,550
25 1,060 1,090 1,900 7,020 3,420 1,760 1,090 878 1,040 1,750 1,730 1,590
26 1,110 1,100 2,030 7,040 3,400 1,760 1,070 918 1,060 1,900 1,790 1,700
27 1,120 1,110 2,170 7,020 3,430 1,750 1,110 896 1,100 1,920 1,840 1,630
28 1,100 1,120 2,260 7,170 3,320 1,720 1,080 871 1,100 1,760 1,920 1,550
29 1,080 1,190 2,420 7,400 3,240 1,720 1,100 987 1,230 1,790 1,940 1,500
30 1,040   2,520 7,600 3,120 1,740 1,100 1,010 1,180 1,820 1,990 1,420
31 1,010   2,660   3,010   1,090 965   1,830   1,380