Overview Realtime Historical Map View
Frost Advisory
2026-09-22T09:00:00-04:00

* WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Alger, Delta, Dickinson, Luce, Marquette, Northern Schoolcraft, Southern Schoolcraft, Gogebic, and Ontonagon Counties. * WHEN...From 2 AM EDT /1 AM CDT/ to 9 AM EDT /8 AM CDT/ Tuesday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Ontonagon River Near Rockland, 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 1323.67
01-02 1307.33
01-03 1318.0
01-04 1459.67
01-05 835.0
01-06 843.0
01-07 933.5
01-08 1034.0
01-09 919.5
01-10 918.5
01-11 827.0
01-12 848.0
01-13 2188.5
01-14 2305.0
01-15 2450.0
01-16 2130.0
03-15 5566.67
03-16 5658.33
03-17 8443.75
03-18 6540.2
03-19 4066.33
03-20 2806.8
03-21 2352.33
03-22 2340.83
03-23 1772.0
03-24 2716.43
03-25 2848.43
03-26 2458.75
03-27 2681.25
03-28 3023.75
03-29 3468.89
03-30 4104.44
03-31 3658.75
04-01 3220.0
04-02 2946.9
04-03 3768.7
04-04 3287.9
04-05 2970.9
04-06 2802.9
04-07 2774.55
04-08 3974.36
04-09 2913.6
04-10 3776.55
04-11 4499.75
04-12 5606.18
04-13 7554.83
04-14 7261.14
04-15 6537.08
04-16 5367.31
04-17 5365.69
04-18 5672.15
04-19 4545.0
04-20 3879.17
04-21 4872.86
04-22 5861.54
04-23 6381.69
04-24 5619.21
04-25 5014.69
04-26 4894.93
04-27 5115.36
04-28 4919.36
04-29 5385.86
04-30 6085.86
05-01 6209.07
05-02 5395.0
05-03 4619.54
05-04 3974.86
05-05 3652.36
05-06 3220.0
05-07 2942.27
05-08 2637.47
05-09 2591.47
05-10 2860.6
05-11 2332.87
05-12 2057.07
05-13 2149.43
05-14 2051.43
05-15 1924.92
05-16 1664.54
05-17 1594.77
05-18 1650.29
05-19 2108.07
05-20 2735.23
05-21 2442.07
05-22 2416.0
05-23 2324.2
05-24 1872.27
05-25 1614.4
05-26 1818.73
05-27 2203.27
05-28 1887.67
05-29 1898.47
05-30 1797.2
05-31 1663.47
06-01 1472.4
06-02 1266.67
06-03 1216.47
06-04 1151.93
06-05 1162.36
06-06 1131.29
06-07 1151.93
06-08 991.13
06-09 908.13
06-10 844.87
06-11 1279.07
06-12 1147.79
06-13 1050.71
06-14 1033.21
06-15 863.27
06-16 841.2
06-17 964.87
06-18 1840.87
06-19 1450.86
06-20 1188.07
06-21 1357.71
06-22 1278.29
06-23 1142.43
06-24 953.43
06-25 907.36
06-26 922.29
06-27 911.86
06-28 883.79
06-29 866.57
06-30 1384.86
07-01 1086.93
07-02 906.14
07-03 783.93
07-04 676.5
07-05 1414.4
07-06 945.53
07-07 894.07
07-08 906.43
07-09 820.5
07-10 824.73
07-11 827.53
07-12 791.87
07-13 1026.8
07-14 893.87
07-15 790.0
07-16 993.86
07-17 863.47
07-18 744.07
07-19 703.87
07-20 725.13
07-21 689.53
07-22 658.93
07-23 608.0
07-24 622.07
07-25 589.0
07-26 576.87
07-27 611.27
07-28 618.2
07-29 641.93
07-30 618.27
07-31 588.33
08-01 587.93
08-02 579.27
08-03 830.4
08-04 601.33
08-05 589.53
08-06 553.87
08-07 539.27
08-08 561.07
08-09 628.21
08-10 611.29
08-11 664.33
08-12 657.53
08-13 597.6
08-14 567.73
08-15 537.33
08-16 504.5
08-17 510.5
08-18 512.62
08-19 537.29
08-20 541.93
08-21 661.92
08-22 743.17
08-23 691.79
08-24 551.43
08-25 560.79
08-26 598.0
08-27 598.73
08-28 619.4
08-29 721.0
08-30 677.87
08-31 638.07
09-01 619.6
09-02 612.93
09-03 651.8
09-04 649.2
09-05 661.87
09-06 805.8
09-07 751.0
09-08 742.33
09-09 728.93
09-10 858.73
09-11 1426.13
09-12 1027.67
09-13 883.73
09-14 769.87
09-15 739.93
09-16 726.0
09-17 667.67
09-18 639.4
09-19 611.6
09-20 621.8
09-21 762.5
09-22 903.31
09-23 852.79
09-24 761.5
09-25 696.14
09-26 708.21
09-27 747.71
09-28 855.5
09-29 824.79
09-30 798.08
10-01 836.54
10-02 847.0
10-03 764.23
10-04 856.15
10-05 985.64
10-06 951.14
10-07 914.29
10-08 996.5
10-09 1067.86
10-10 1537.43
10-11 1997.07
10-12 1543.57
10-13 1708.21
10-14 1252.14
10-15 1235.62
10-16 1346.29
10-17 1334.14
10-18 1370.86
10-19 1282.29
10-20 1155.07
10-21 986.15
10-22 1093.5
10-23 1229.07
10-24 1285.36
10-25 1585.64
10-26 1627.14
10-27 1450.93
10-28 1744.21
10-29 1470.36
10-30 1338.0
10-31 1308.64
11-01 1229.79
11-02 1216.07
11-03 1192.21
11-04 1155.07
11-05 1222.57
11-06 1616.85
11-07 1435.31
11-08 1306.15
11-09 1207.69
11-10 1354.46
11-11 1967.08
11-12 1644.23
11-13 1577.62
11-14 1420.71
11-15 1299.77
11-16 1580.38
11-17 1428.21
11-18 1272.83
11-19 1287.33
11-20 1193.83
11-21 1162.15
11-22 1202.69
11-23 1117.36
11-24 1090.0
11-25 1360.85
11-26 1507.08
11-27 1559.77
11-28 1343.0
11-29 1289.45
11-30 1334.64
12-01 1268.27
12-02 1205.36
12-03 1284.18
12-04 1272.55
12-05 1439.45
12-06 1351.3
12-07 1125.09
12-08 1020.91
12-09 1097.0
12-10 1232.56
12-11 1275.44
12-12 1497.22
12-13 1558.5
12-14 1473.29
12-15 1408.63
12-16 1562.29
12-17 2159.86
12-18 1751.57
12-19 1437.5
12-20 1165.67
12-21 1240.0
12-22 1388.0
12-23 1707.6
12-24 1860.0
12-25 2064.0
12-26 2724.0
12-27 2235.0
12-28 1483.33
12-29 1435.0
12-30 1310.0
12-31 1293.33

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index