Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

* We've detected you're using a mobile device. Find our Next Generation Station Page here.
Click to hideNews Bulletins

USGS Daily Statistics for Maine

Click to hide state-specific text

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
Output formats
HTML table of all data
Tab-separated data
Reselect output format

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 -> 2023-09-30)

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 1,320 1,010 1,130 2,830 7,300 2,910 1,710 962 963 1,240 1,850 2,060
2 1,290 988 1,120 3,040 7,040 2,900 1,680 918 929 1,230 1,750 2,040
3 1,270 1,000 1,100 3,250 6,730 2,860 1,600 923 912 1,160 1,790 1,910
4 1,260 1,070 1,100 3,440 6,640 2,740 1,530 909 950 1,140 2,120 1,830
5 1,230 1,090 1,090 3,560 6,500 2,650 1,550 910 937 1,130 2,090 1,710
6 1,210 1,100 1,090 3,580 6,180 2,540 1,530 908 896 1,100 1,970 1,660
7 1,230 1,070 1,120 3,580 5,970 2,480 1,550 892 882 1,110 1,880 1,800
8 1,200 1,050 1,120 3,760 5,820 2,530 1,520 903 862 1,160 1,900 1,770
9 1,170 1,040 1,150 3,850 5,710 2,490 1,550 914 846 1,170 2,070 1,680
10 1,170 1,020 1,180 3,920 5,600 2,350 1,470 941 907 1,190 2,110 1,680
11 1,160 998 1,210 3,930 5,430 2,260 1,450 1,010 909 1,160 2,010 1,700
12 1,160 1,010 1,240 3,980 5,130 2,250 1,350 1,020 1,000 1,060 1,920 1,780
13 1,150 1,050 1,320 4,160 5,020 2,270 1,320 971 1,010 1,090 1,850 1,830
14 1,140 1,030 1,390 4,550 4,880 2,250 1,280 979 988 1,080 1,850 1,910
15 1,170 1,020 1,370 4,890 4,690 2,170 1,240 965 1,000 1,170 1,860 1,810
16 1,170 998 1,350 5,160 4,540 2,150 1,290 931 975 1,290 1,890 1,740
17 1,140 991 1,390 5,300 4,340 2,090 1,230 898 961 1,390 1,960 1,650
18 1,130 999 1,460 5,590 4,250 2,130 1,200 909 977 1,460 1,900 1,610
19 1,130 993 1,550 5,760 4,220 2,210 1,170 964 906 1,430 1,830 1,590
20 1,140 984 1,720 5,930 4,130 2,090 1,190 967 882 1,400 1,830 1,550
21 1,120 986 1,760 6,200 4,000 2,040 1,160 924 879 1,490 1,860 1,550
22 1,120 1,010 1,820 6,470 3,780 1,950 1,150 907 875 1,510 1,810 1,610
23 1,110 1,030 1,880 6,690 3,670 1,940 1,150 894 915 1,400 1,820 1,570
24 1,080 1,050 1,890 6,960 3,500 1,860 1,100 868 967 1,540 1,790 1,550
25 1,060 1,090 1,910 7,000 3,400 1,760 1,090 884 1,040 1,770 1,730 1,580
26 1,100 1,110 2,050 7,010 3,380 1,760 1,060 923 1,060 1,900 1,800 1,690
27 1,110 1,110 2,180 6,980 3,410 1,750 1,110 901 1,100 1,950 1,840 1,620
28 1,100 1,120 2,270 7,150 3,300 1,710 1,080 877 1,100 1,780 1,910 1,540
29 1,070 1,190 2,420 7,380 3,230 1,710 1,090 991 1,230 1,810 1,940 1,490
30 1,040   2,520 7,590 3,110 1,730 1,100 1,010 1,180 1,830 1,990 1,410
31 1,010   2,660   3,000   1,090 961   1,850   1,370