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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 -> 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 1,340 1,010 1,130 2,820 7,290 2,900 1,730 965 969 1,250 1,850 2,090
2 1,330 985 1,120 3,020 7,050 2,880 1,700 921 935 1,240 1,750 2,080
3 1,310 1,000 1,100 3,230 6,740 2,850 1,620 925 918 1,160 1,790 1,930
4 1,300 1,060 1,090 3,410 6,650 2,730 1,550 910 953 1,150 2,120 1,870
5 1,260 1,080 1,080 3,540 6,490 2,650 1,560 912 940 1,140 2,090 1,740
6 1,230 1,090 1,090 3,560 6,160 2,550 1,540 910 899 1,110 1,970 1,700
7 1,250 1,070 1,110 3,560 5,950 2,490 1,550 894 885 1,120 1,880 1,840
8 1,220 1,050 1,120 3,740 5,800 2,540 1,530 905 867 1,200 1,900 1,840
9 1,180 1,040 1,140 3,830 5,690 2,510 1,560 938 852 1,210 2,070 1,750
10 1,180 1,010 1,180 3,900 5,570 2,370 1,470 959 911 1,220 2,110 1,740
11 1,170 993 1,210 3,920 5,400 2,280 1,460 1,020 915 1,170 2,010 1,750
12 1,170 1,000 1,240 3,990 5,100 2,260 1,380 1,030 1,010 1,080 1,920 1,830
13 1,160 1,040 1,310 4,180 4,990 2,280 1,340 978 1,010 1,110 1,850 1,870
14 1,140 1,030 1,390 4,580 4,850 2,260 1,290 986 1,030 1,100 1,850 1,940
15 1,180 1,010 1,370 4,930 4,660 2,160 1,250 972 1,040 1,180 1,860 1,840
16 1,180 994 1,350 5,210 4,510 2,140 1,300 937 1,000 1,300 1,890 1,760
17 1,140 990 1,380 5,350 4,310 2,090 1,250 904 997 1,410 1,960 1,660
18 1,130 1,000 1,450 5,670 4,220 2,170 1,210 915 1,000 1,460 1,900 1,620
19 1,130 995 1,540 5,850 4,190 2,270 1,200 980 937 1,430 1,830 1,590
20 1,140 985 1,710 5,990 4,100 2,150 1,220 986 930 1,400 1,830 1,550
21 1,120 987 1,750 6,250 3,990 2,080 1,180 942 914 1,490 1,860 1,570
22 1,120 1,010 1,810 6,500 3,770 1,980 1,170 923 900 1,510 1,820 1,640
23 1,110 1,030 1,870 6,710 3,650 1,960 1,160 907 932 1,400 1,820 1,590
24 1,080 1,050 1,880 6,980 3,480 1,870 1,110 877 980 1,540 1,790 1,580
25 1,060 1,090 1,900 7,000 3,390 1,780 1,090 892 1,060 1,770 1,730 1,610
26 1,100 1,110 2,030 6,990 3,380 1,780 1,070 932 1,070 1,900 1,800 1,720
27 1,110 1,110 2,170 6,950 3,400 1,770 1,110 909 1,110 1,950 1,840 1,640
28 1,090 1,120 2,260 7,120 3,290 1,740 1,080 883 1,110 1,780 1,920 1,560
29 1,070 1,190 2,410 7,360 3,220 1,740 1,100 995 1,240 1,810 1,940 1,510
30 1,030   2,510 7,570 3,090 1,760 1,100 1,020 1,180 1,830 1,990 1,430
31 1,010   2,640   2,980   1,090 966   1,850   1,390