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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 95 - 98 years of record in, ft3/s   (Calculation Period 1902-10-01 -> 2019-09-30)

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 1,300 1,010 1,140 2,790 7,320 2,930 1,700 979 983 1,250 1,780 2,020
2 1,280 988 1,130 2,940 7,060 2,930 1,680 934 948 1,250 1,700 1,930
3 1,260 1,010 1,110 3,170 6,760 2,900 1,610 938 926 1,170 1,730 1,860
4 1,260 1,070 1,100 3,350 6,700 2,780 1,540 924 964 1,160 2,060 1,820
5 1,230 1,090 1,090 3,470 6,550 2,700 1,570 926 952 1,140 2,070 1,700
6 1,210 1,110 1,090 3,480 6,220 2,590 1,550 924 910 1,120 1,960 1,650
7 1,230 1,080 1,120 3,480 6,010 2,520 1,570 909 893 1,120 1,860 1,790
8 1,200 1,060 1,130 3,680 5,880 2,570 1,540 920 873 1,180 1,890 1,770
9 1,170 1,050 1,150 3,750 5,780 2,530 1,580 922 858 1,190 2,080 1,680
10 1,180 1,020 1,190 3,830 5,680 2,390 1,490 943 900 1,230 2,130 1,670
11 1,170 1,000 1,220 3,850 5,510 2,300 1,470 1,020 899 1,190 2,030 1,680
12 1,160 1,010 1,250 3,900 5,190 2,290 1,380 1,030 1,010 1,080 1,930 1,770
13 1,160 1,050 1,330 4,090 5,080 2,320 1,340 986 1,020 1,110 1,830 1,830
14 1,140 1,040 1,400 4,420 4,930 2,300 1,300 997 1,000 1,090 1,840 1,910
15 1,180 1,030 1,380 4,730 4,730 2,210 1,260 983 1,020 1,110 1,860 1,780
16 1,180 1,010 1,360 5,010 4,590 2,190 1,310 948 990 1,270 1,900 1,700
17 1,150 1,000 1,390 5,180 4,390 2,140 1,250 912 976 1,380 1,970 1,620
18 1,130 1,010 1,450 5,510 4,300 2,180 1,220 915 995 1,410 1,920 1,590
19 1,140 1,000 1,540 5,700 4,280 2,260 1,200 966 922 1,320 1,840 1,570
20 1,150 990 1,720 5,830 4,200 2,130 1,210 975 896 1,280 1,840 1,540
21 1,130 993 1,760 6,070 4,060 2,070 1,180 933 890 1,420 1,880 1,550
22 1,130 1,010 1,820 6,350 3,830 1,980 1,170 914 886 1,460 1,830 1,600
23 1,120 1,040 1,880 6,600 3,720 1,970 1,170 901 922 1,360 1,830 1,520
24 1,090 1,060 1,880 6,920 3,540 1,890 1,120 873 974 1,500 1,780 1,510
25 1,060 1,090 1,900 7,000 3,440 1,790 1,110 890 1,040 1,750 1,730 1,550
26 1,090 1,110 2,020 7,050 3,420 1,790 1,080 932 1,040 1,900 1,800 1,570
27 1,110 1,120 2,150 7,020 3,430 1,780 1,130 910 1,070 1,930 1,850 1,530
28 1,090 1,130 2,240 7,100 3,310 1,750 1,100 886 1,080 1,760 1,930 1,480
29 1,070 1,210 2,390 7,380 3,230 1,740 1,110 1,000 1,230 1,800 1,960 1,440
30 1,030   2,490 7,620 3,110 1,750 1,120 1,030 1,200 1,820 2,010 1,380
31 1,010   2,630   3,020   1,100 981   1,830   1,340