Overview Realtime Historical Map View
Heat Advisory
2026-07-15T20:00:00-05:00

* WHAT...Heat index values up to 102 expected. * WHERE...Portions of east central, south central and southeast Wisconsin. * WHEN...From noon today to 8 PM CDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur.

Rock River At Watertown, Wi Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
01-01 826.57
01-02 774.4
01-03 772.2
01-04 757.0
01-05 728.0
01-06 712.4
01-07 739.8
01-08 642.17
01-09 491.4
01-10 524.4
01-11 708.17
01-12 672.83
01-13 695.0
01-14 631.8
01-15 623.6
01-16 633.0
01-17 637.5
01-18 630.33
01-19 734.0
01-20 809.33
01-21 771.33
01-22 612.0
01-23 720.0
01-24 794.5
01-25 848.5
01-26 854.0
01-27 705.0
01-28 587.67
01-29 627.0
01-30 440.75
01-31 461.5
02-01 598.6
02-02 591.6
02-03 597.0
02-04 616.33
02-05 585.83
02-06 604.5
02-07 716.8
02-08 702.4
02-09 616.5
02-10 631.2
02-11 545.0
02-12 555.2
02-13 538.4
02-14 774.25
02-15 700.75
02-16 753.0
02-17 649.8
02-18 578.0
02-19 612.0
02-20 594.25
02-21 589.0
02-22 574.25
02-23 573.25
02-24 567.0
02-25 543.25
02-26 514.5
02-27 521.5
02-28 551.25
02-29 672.5
03-01 604.0
03-02 1062.0
03-03 972.29
03-04 947.0
03-05 963.71
03-06 1038.86
03-07 1109.29
03-08 1221.63
03-09 1231.89
03-10 1302.11
03-11 1357.22
03-12 1449.78
03-13 1420.0
03-14 1401.9
03-15 1486.25
03-16 1451.25
03-17 1462.75
03-18 1414.0
03-19 1444.0
03-20 1525.29
03-21 1558.6
03-22 1509.0
03-23 1523.93
03-24 1525.87
03-25 1556.07
03-26 1565.73
03-27 1599.87
03-28 1617.67
03-29 1659.6
03-30 1700.64
03-31 1662.57
04-01 1708.73
04-02 1674.4
04-03 1681.57
04-04 1742.2
04-05 1772.93
04-06 1773.4
04-07 1761.4
04-08 1753.8
04-09 1746.79
04-10 1934.47
04-11 1969.0
04-12 1935.79
04-13 1921.21
04-14 1951.43
04-15 2098.5
04-16 2081.31
04-17 2063.08
04-18 2052.62
04-19 2114.77
04-20 2086.54
04-21 2103.57
04-22 2105.71
04-23 2112.14
04-24 2098.57
04-25 2099.92
04-26 2002.71
04-27 1959.5
04-28 1930.0
04-29 1884.57
04-30 1863.36
05-01 1869.4
05-02 1802.79
05-03 1785.43
05-04 1799.21
05-05 1827.13
05-06 1783.4
05-07 1779.87
05-08 1684.21
05-09 1708.13
05-10 1654.86
05-11 1671.73
05-12 1649.33
05-13 1615.53
05-14 1522.29
05-15 1600.14
05-16 1556.21
05-17 1507.86
05-18 1448.53
05-19 1407.47
05-20 1421.14
05-21 1317.27
05-22 1297.6
05-23 1279.2
05-24 1268.6
05-25 1244.73
05-26 1237.13
05-27 1213.2
05-28 1197.07
05-29 1248.71
05-30 1228.71
05-31 1153.62
06-01 1144.4
06-02 1149.0
06-03 1059.2
06-04 989.29
06-05 1011.36
06-06 967.57
06-07 935.86
06-08 874.27
06-09 867.6
06-10 830.27
06-11 888.0
06-12 889.64
06-13 902.86
06-14 879.71
06-15 903.0
06-16 1010.2
06-17 993.33
06-18 945.2
06-19 948.07
06-20 975.29
06-21 1027.69
06-22 951.43
06-23 967.36
06-24 953.52
06-25 942.71
06-26 947.79
06-27 956.86
06-28 934.36
06-29 992.86
06-30 970.85
07-01 961.36
07-02 782.18
07-03 907.93
07-04 876.36
07-05 832.6
07-06 822.47
07-07 836.21
07-08 800.86
07-09 785.5
07-10 746.8
07-11 752.13
07-12 711.0
07-13 665.71
07-14 665.87
07-15 676.29
07-16 674.71
07-17 661.5
07-18 633.79
07-19 628.21
07-20 610.93
07-21 606.93
07-22 606.71
07-23 611.57
07-24 587.07
07-25 600.08
07-26 521.79
07-27 520.43
07-28 515.41
07-29 506.29
07-30 504.36
07-31 467.54
08-01 479.55
08-02 506.0
08-03 456.43
08-04 426.71
08-05 445.08
08-06 387.86
08-07 372.36
08-08 391.38
08-09 311.75
08-10 369.85
08-11 423.24
08-12 448.36
08-13 463.82
08-14 476.5
08-15 470.5
08-16 436.33
08-17 448.23
08-18 605.5
08-19 560.0
08-20 566.92
08-21 601.23
08-22 607.42
08-23 537.86
08-24 518.67
08-25 478.77
08-26 485.86
08-27 490.0
08-28 530.79
08-29 553.14
08-30 576.0
08-31 561.0
09-01 506.54
09-02 513.07
09-03 558.29
09-04 549.43
09-05 515.63
09-06 573.45
09-07 581.66
09-08 581.83
09-09 579.54
09-10 610.1
09-11 609.51
09-12 676.04
09-13 748.21
09-14 769.07
09-15 742.0
09-16 709.07
09-17 678.21
09-18 651.43
09-19 640.36
09-20 636.0
09-21 645.29
09-22 646.38
09-23 660.14
09-24 674.29
09-25 653.93
09-26 633.57
09-27 617.21
09-28 606.5
09-29 604.07
09-30 652.08
10-01 487.09
10-02 539.77
10-03 585.31
10-04 547.31
10-05 612.93
10-06 637.71
10-07 685.93
10-08 717.93
10-09 726.0
10-10 732.36
10-11 724.71
10-12 711.5
10-13 719.21
10-14 735.93
10-15 726.58
10-16 660.08
10-17 790.71
10-18 793.93
10-19 779.43
10-20 754.79
10-21 662.67
10-22 699.14
10-23 703.57
10-24 725.64
10-25 701.86
10-26 696.64
10-27 736.21
10-28 751.5
10-29 785.08
10-30 727.79
10-31 724.07
11-01 728.64
11-02 769.69
11-03 766.0
11-04 767.43
11-05 689.54
11-06 695.08
11-07 692.92
11-08 674.23
11-09 636.83
11-10 694.69
11-11 703.46
11-12 707.08
11-13 696.85
11-14 840.85
11-15 824.69
11-16 812.31
11-17 757.64
11-18 822.08
11-19 827.75
11-20 798.92
11-21 758.5
11-22 756.62
11-23 769.93
11-24 767.38
11-25 758.69
11-26 732.86
11-27 754.62
11-28 769.67
11-29 775.0
11-30 778.57
12-01 782.85
12-02 794.5
12-03 784.29
12-04 785.57
12-05 784.71
12-06 724.42
12-07 797.69
12-08 763.0
12-09 747.38
12-10 735.69
12-11 739.46
12-12 726.18
12-13 793.0
12-14 715.44
12-15 707.33
12-16 736.0
12-17 844.3
12-18 827.0
12-19 775.0
12-20 700.22
12-21 703.67
12-22 793.4
12-23 838.0
12-24 856.25
12-25 869.25
12-26 808.75
12-27 811.25
12-28 792.13
12-29 635.43
12-30 842.71
12-31 878.86

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index