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USGS Daily Statistics for the Nation

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 -> 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 1,020 1,140 2,790 7,320 2,930 1,700 979 983 1,250 1,780 2,010
2 1,280 996 1,130 2,940 7,060 2,930 1,680 934 948 1,250 1,690 1,920
3 1,260 1,010 1,110 3,170 6,760 2,900 1,610 938 926 1,170 1,750 1,850
4 1,260 1,080 1,100 3,350 6,700 2,780 1,540 924 964 1,160 2,100 1,810
5 1,230 1,100 1,090 3,470 6,550 2,700 1,570 926 952 1,140 2,090 1,690
6 1,210 1,110 1,090 3,480 6,220 2,590 1,550 924 910 1,120 1,970 1,640
7 1,230 1,090 1,120 3,480 6,010 2,520 1,570 909 893 1,120 1,880 1,780
8 1,200 1,070 1,130 3,680 5,880 2,570 1,540 920 873 1,180 1,900 1,760
9 1,170 1,060 1,150 3,750 5,780 2,530 1,580 922 858 1,190 2,090 1,670
10 1,180 1,030 1,180 3,830 5,680 2,390 1,490 943 900 1,220 2,140 1,660
11 1,170 1,010 1,220 3,850 5,510 2,300 1,470 1,020 899 1,180 2,030 1,670
12 1,160 1,020 1,250 3,900 5,190 2,290 1,380 1,030 1,010 1,080 1,930 1,760
13 1,160 1,060 1,330 4,090 5,080 2,320 1,340 986 1,020 1,110 1,840 1,820
14 1,140 1,050 1,400 4,420 4,930 2,300 1,300 997 1,000 1,090 1,840 1,900
15 1,180 1,030 1,380 4,730 4,730 2,210 1,260 983 1,020 1,110 1,850 1,770
16 1,180 1,010 1,360 5,010 4,590 2,190 1,310 948 990 1,260 1,890 1,690
17 1,150 1,000 1,390 5,180 4,390 2,140 1,250 912 976 1,370 1,960 1,610
18 1,130 1,010 1,450 5,510 4,300 2,180 1,220 915 995 1,400 1,910 1,580
19 1,140 1,000 1,540 5,700 4,280 2,260 1,200 966 922 1,310 1,830 1,570
20 1,150 992 1,720 5,830 4,200 2,130 1,210 975 896 1,270 1,830 1,530
21 1,130 996 1,760 6,070 4,060 2,070 1,180 933 890 1,410 1,870 1,540
22 1,130 1,020 1,820 6,350 3,830 1,980 1,170 914 886 1,450 1,830 1,610
23 1,120 1,040 1,880 6,600 3,720 1,970 1,170 901 922 1,350 1,820 1,560
24 1,090 1,060 1,880 6,920 3,540 1,890 1,120 873 974 1,490 1,770 1,550
25 1,070 1,100 1,900 7,000 3,440 1,790 1,110 890 1,040 1,740 1,720 1,570
26 1,110 1,110 2,020 7,050 3,420 1,790 1,080 932 1,040 1,890 1,790 1,580
27 1,120 1,120 2,150 7,020 3,430 1,780 1,130 910 1,070 1,920 1,840 1,530
28 1,100 1,130 2,240 7,100 3,310 1,750 1,100 886 1,080 1,740 1,920 1,480
29 1,080 1,210 2,390 7,380 3,230 1,740 1,110 1,000 1,230 1,790 1,950 1,450
30 1,040   2,490 7,620 3,110 1,750 1,120 1,030 1,200 1,820 2,000 1,380
31 1,020   2,630   3,020   1,100 981   1,830   1,340