Overview Realtime Historical Map View

East Branch Penobscot River At Grindstone, Maine Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
01-01 4340.0
01-02 3913.33
01-03 4495.0
01-04 4620.0
01-05 4330.0
01-06 3780.0
01-07 3140.0
01-08 3000.0
01-09 2890.0
03-09 5300.0
03-10 4770.0
03-11 4770.0
03-12 5950.0
03-13 4830.0
03-14 4030.0
03-15 3760.0
03-16 3390.0
03-17 3365.0
03-18 5206.67
03-19 5146.67
03-20 4696.67
03-21 4203.33
03-22 5730.0
03-23 6547.5
03-24 5516.0
03-25 4947.5
03-26 5060.0
03-27 4420.0
03-28 3435.0
03-29 3220.0
03-30 3718.0
03-31 3542.0
04-01 3763.33
04-02 4466.67
04-03 4138.33
04-04 4294.29
04-05 4102.5
04-06 4068.75
04-07 4088.75
04-08 4245.0
04-09 5560.0
04-10 5350.0
04-11 5124.44
04-12 5040.0
04-13 5217.5
04-14 6227.0
04-15 7032.22
04-16 7683.64
04-17 8618.18
04-18 8163.64
04-19 7949.09
04-20 8120.83
04-21 8432.31
04-22 8283.08
04-23 8062.31
04-24 7875.38
04-25 7692.31
04-26 7035.0
04-27 7627.86
04-28 8329.29
04-29 7813.57
04-30 7257.86
05-01 7763.33
05-02 7416.43
05-03 6714.29
05-04 6444.67
05-05 5985.0
05-06 6217.33
05-07 5897.33
05-08 5175.0
05-09 4677.86
05-10 4499.33
05-11 4133.57
05-12 3935.71
05-13 3740.71
05-14 3301.54
05-15 3426.15
05-16 3613.85
05-17 3667.86
05-18 3474.67
05-19 3213.33
05-20 2898.57
05-21 3008.67
05-22 2852.0
05-23 2578.0
05-24 2409.33
05-25 2683.33
05-26 2742.0
05-27 3206.0
05-28 3044.0
05-29 3073.33
05-30 2782.67
05-31 2504.67
06-01 2499.33
06-02 2341.33
06-03 2220.0
06-04 2258.47
06-05 2181.79
06-06 2078.53
06-07 2112.93
06-08 1958.57
06-09 1950.73
06-10 1985.4
06-11 1903.27
06-12 1720.71
06-13 2302.5
06-14 2348.43
06-15 2221.4
06-16 1861.67
06-17 1599.27
06-18 1618.87
06-19 2060.64
06-20 2242.93
06-21 2160.14
06-22 1979.36
06-23 1659.57
06-24 1540.64
06-25 1847.14
06-26 1737.64
06-27 1889.0
06-28 2107.86
06-29 2103.71
06-30 2162.57
07-01 2141.0
07-02 1915.5
07-03 1805.14
07-04 1676.85
07-05 1419.07
07-06 1610.07
07-07 1565.79
07-08 1404.79
07-09 1411.07
07-10 1238.13
07-11 1212.07
07-12 1306.85
07-13 1106.64
07-14 1011.4
07-15 922.53
07-16 965.92
07-17 972.79
07-18 947.29
07-19 937.93
07-20 1079.57
07-21 1034.93
07-22 960.07
07-23 893.79
07-24 893.86
07-25 883.57
07-26 829.5
07-27 922.08
07-28 948.36
07-29 919.21
07-30 900.64
07-31 820.5
08-01 786.5
08-02 741.31
08-03 751.0
08-04 762.86
08-05 777.71
08-06 797.5
08-07 776.71
08-08 704.08
08-09 786.0
08-10 1054.54
08-11 996.29
08-12 946.29
08-13 883.5
08-14 849.14
08-15 1087.93
08-16 1006.85
08-17 1026.23
08-18 1116.58
08-19 1137.15
08-20 1082.92
08-21 1030.46
08-22 994.17
08-23 1268.57
08-24 1147.0
08-25 1045.85
08-26 1045.0
08-27 1140.36
08-28 1140.21
08-29 1283.36
08-30 1713.36
08-31 1550.15
09-01 1224.36
09-02 1046.21
09-03 1017.93
09-04 1161.93
09-05 1132.93
09-06 1161.14
09-07 1302.79
09-08 1339.86
09-09 1220.07
09-10 1187.5
09-11 1289.0
09-12 1180.36
09-13 1118.15
09-14 1239.21
09-15 1472.79
09-16 1305.07
09-17 1288.86
09-18 1163.36
09-19 1028.64
09-20 1342.0
09-21 1207.43
09-22 1113.69
09-23 1167.57
09-24 1130.86
09-25 1138.79
09-26 1195.43
09-27 1361.07
09-28 1249.07
09-29 1098.21
09-30 1099.46
10-01 1891.92
10-02 1882.23
10-03 1500.69
10-04 1290.58
10-05 1394.79
10-06 1469.31
10-07 1239.43
10-08 1187.21
10-09 1532.86
10-10 1283.71
10-11 1121.43
10-12 1084.93
10-13 1072.54
10-14 958.36
10-15 1144.38
10-16 1679.08
10-17 1415.5
10-18 1924.64
10-19 2039.62
10-20 2451.54
10-21 2184.77
10-22 1776.57
10-23 1760.29
10-24 1872.71
10-25 2150.07
10-26 1908.38
10-27 2562.93
10-28 1825.85
10-29 2042.14
10-30 2181.54
10-31 1981.69
11-01 3168.5
11-02 2941.15
11-03 2336.0
11-04 2606.64
11-05 2251.5
11-06 1839.38
11-07 1862.77
11-08 1790.46
11-09 1656.23
11-10 1522.85
11-11 1481.54
11-12 1546.08
11-13 1707.85
11-14 1767.92
11-15 1615.0
11-16 1460.33
11-17 1714.33
11-18 1622.09
11-19 1660.0
11-20 1717.0
11-21 1655.7
11-22 1515.67
11-23 1690.64
11-24 1672.18
11-25 1593.09
11-26 1766.0
11-27 1743.0
11-28 2100.0
11-29 2208.0
11-30 1638.89
12-01 2068.83
12-02 5107.17
12-03 3444.67
12-04 2803.33
12-05 2676.67
12-06 2836.0
12-07 2901.67
12-08 2951.43
12-09 2981.43
12-10 2688.57
12-11 2971.33
12-12 5266.0
12-13 4472.5
12-14 4270.0
12-15 4040.0
12-16 3030.0
12-17 3310.0
12-18 1339.0
12-19 8060.0
12-20 10795.5
12-21 5940.0
12-22 5073.33
12-23 4650.0
12-24 6025.0
12-25 4885.0
12-26 4385.0
12-27 6856.67
12-28 5610.0
12-29 4823.33
12-30 3460.0
12-31 3846.67

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index