Overview Realtime Historical Map View

Grand River At Portland, Mi 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 1648.33
01-02 1666.11
01-03 1658.78
01-04 1540.11
01-05 1343.56
01-06 1225.2
01-07 1232.64
01-08 1223.2
01-09 1321.1
01-10 1408.5
01-11 1220.67
01-12 1730.78
01-13 1729.56
01-14 1755.56
01-15 1807.2
01-16 1911.89
01-17 1465.22
01-18 1425.89
01-19 1669.78
01-20 1894.88
01-21 1861.33
01-22 2188.0
01-23 2457.8
01-24 3098.0
01-25 2594.29
01-26 2301.0
01-27 2435.14
01-28 2158.13
01-29 2366.57
01-30 2216.14
01-31 2093.88
02-01 1936.38
02-02 1753.13
02-03 1948.67
02-04 2142.2
02-05 2086.0
02-06 1922.0
02-07 1788.0
02-08 1694.0
02-09 1586.67
02-10 1568.57
02-11 1441.67
02-12 1440.0
02-13 1292.14
02-14 1650.0
02-15 1748.71
02-16 1860.43
02-17 1646.2
02-18 2593.17
02-19 2066.71
02-20 2119.78
02-21 2559.8
02-22 2690.9
02-23 2930.9
02-24 2698.1
02-25 1808.44
02-26 1705.11
02-27 2050.7
02-28 1959.3
02-29 1512.5
03-01 2098.0
03-02 2060.09
03-03 1946.2
03-04 2010.09
03-05 1903.42
03-06 1849.83
03-07 1901.33
03-08 2145.67
03-09 2186.42
03-10 2172.58
03-11 2214.17
03-12 2285.0
03-13 2311.54
03-14 2220.0
03-15 2288.46
03-16 2304.21
03-17 2385.71
03-18 2193.64
03-19 1935.67
03-20 1885.36
03-21 1868.53
03-22 1926.29
03-23 1871.53
03-24 1927.47
03-25 1993.0
03-26 2082.0
03-27 2040.67
03-28 2004.67
03-29 2102.93
03-30 2077.33
03-31 2153.21
04-01 2357.47
04-02 2465.8
04-03 2611.2
04-04 2611.47
04-05 3237.4
04-06 3243.0
04-07 3247.2
04-08 3018.73
04-09 2841.36
04-10 2564.33
04-11 2466.0
04-12 2572.86
04-13 2407.86
04-14 2223.57
04-15 2154.0
04-16 2367.69
04-17 2540.0
04-18 2442.15
04-19 2607.15
04-20 2601.31
04-21 2416.79
04-22 2314.21
04-23 2169.64
04-24 2130.86
04-25 2078.23
04-26 1950.21
04-27 1777.36
04-28 1678.85
04-29 1577.0
04-30 1563.21
05-01 1884.4
05-02 1980.0
05-03 1912.14
05-04 1989.73
05-05 2051.93
05-06 1983.87
05-07 1973.93
05-08 1910.93
05-09 1823.0
05-10 1716.0
05-11 1625.93
05-12 1533.6
05-13 1643.07
05-14 1646.4
05-15 1965.0
05-16 2358.14
05-17 2232.43
05-18 2057.73
05-19 2221.73
05-20 2202.5
05-21 2095.67
05-22 2063.2
05-23 1951.0
05-24 1704.0
05-25 1574.47
05-26 1559.2
05-27 1639.93
05-28 1636.27
05-29 1647.93
05-30 1734.8
05-31 1596.4
06-01 1519.47
06-02 1460.4
06-03 1411.6
06-04 1252.87
06-05 1194.43
06-06 1166.21
06-07 1164.71
06-08 1118.2
06-09 1060.93
06-10 1023.73
06-11 1264.13
06-12 1197.0
06-13 1158.21
06-14 1514.86
06-15 1429.07
06-16 1311.2
06-17 1283.6
06-18 1206.4
06-19 1329.64
06-20 1213.5
06-21 1469.86
06-22 1351.57
06-23 1271.36
06-24 1437.36
06-25 1425.43
06-26 1511.5
06-27 1522.0
06-28 1570.5
06-29 1353.64
06-30 1399.29
07-01 1272.36
07-02 1164.64
07-03 1057.5
07-04 966.0
07-05 853.53
07-06 836.2
07-07 810.93
07-08 953.79
07-09 907.5
07-10 858.8
07-11 876.47
07-12 834.07
07-13 824.53
07-14 943.47
07-15 819.47
07-16 764.07
07-17 701.53
07-18 632.87
07-19 633.0
07-20 641.33
07-21 625.87
07-22 640.13
07-23 601.2
07-24 581.13
07-25 581.07
07-26 623.2
07-27 561.33
07-28 579.6
07-29 843.93
07-30 1025.27
07-31 1017.07
08-01 977.0
08-02 830.13
08-03 752.8
08-04 686.27
08-05 651.4
08-06 618.73
08-07 583.53
08-08 595.62
08-09 653.62
08-10 571.77
08-11 766.07
08-12 687.08
08-13 925.62
08-14 884.79
08-15 811.21
08-16 901.08
08-17 1014.15
08-18 1060.67
08-19 902.31
08-20 830.0
08-21 787.46
08-22 744.25
08-23 613.43
08-24 526.69
08-25 594.85
08-26 598.57
08-27 577.21
08-28 607.14
08-29 740.36
08-30 639.71
08-31 583.5
09-01 508.86
09-02 494.86
09-03 499.43
09-04 488.43
09-05 556.92
09-06 485.31
09-07 481.54
09-08 419.46
09-09 703.79
09-10 543.21
09-11 526.93
09-12 517.5
09-13 506.71
09-14 469.0
09-15 478.21
09-16 481.0
09-17 435.57
09-18 423.07
09-19 406.14
09-20 471.0
09-21 519.21
09-22 492.0
09-23 481.0
09-24 516.79
09-25 509.57
09-26 507.29
09-27 495.57
09-28 457.93
09-29 503.0
09-30 505.62
10-01 610.69
10-02 616.54
10-03 644.15
10-04 772.77
10-05 691.29
10-06 684.93
10-07 852.79
10-08 852.0
10-09 845.14
10-10 706.57
10-11 670.43
10-12 704.93
10-13 659.93
10-14 664.14
10-15 738.15
10-16 724.43
10-17 775.86
10-18 718.5
10-19 711.79
10-20 725.21
10-21 765.31
10-22 732.86
10-23 737.5
10-24 834.64
10-25 867.64
10-26 980.0
10-27 934.14
10-28 1019.21
10-29 995.86
10-30 994.57
10-31 940.86
11-01 1100.14
11-02 1091.07
11-03 1113.07
11-04 1084.14
11-05 1016.79
11-06 864.15
11-07 839.15
11-08 800.62
11-09 774.0
11-10 761.38
11-11 750.77
11-12 729.15
11-13 702.77
11-14 708.79
11-15 688.64
11-16 729.92
11-17 726.85
11-18 760.77
11-19 907.54
11-20 972.83
11-21 878.86
11-22 932.15
11-23 858.43
11-24 770.23
11-25 899.0
11-26 931.07
11-27 920.57
11-28 1006.93
11-29 980.79
11-30 1021.0
12-01 1064.57
12-02 999.0
12-03 1172.71
12-04 1210.57
12-05 1267.29
12-06 1232.77
12-07 1184.86
12-08 1110.36
12-09 1079.0
12-10 1034.62
12-11 1039.27
12-12 1062.5
12-13 1155.09
12-14 1079.73
12-15 1109.45
12-16 1386.27
12-17 1266.82
12-18 1259.1
12-19 998.7
12-20 954.1
12-21 962.22
12-22 956.8
12-23 923.3
12-24 948.4
12-25 998.7
12-26 1070.6
12-27 1146.0
12-28 1195.67
12-29 1163.88
12-30 1318.71
12-31 1640.5

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index