Overview Realtime Historical Map View
Heat Advisory
2026-09-04T22:00:00-05:00

* WHAT...Peak heat index values this afternoon of 100 to locally 110 degrees. * WHERE...Portions of north central and northeast Illinois and northwest Indiana. * WHEN...Until 10 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Hart Ditch At Munster, Ind. Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
01-01 127.02
01-02 96.5
01-03 96.56
01-04 86.41
01-05 74.51
01-06 68.43
01-07 63.07
01-08 62.27
01-09 76.51
01-10 90.77
01-11 189.8
01-12 211.84
01-13 150.07
01-14 117.12
01-15 113.97
01-16 78.34
01-17 105.47
01-18 72.19
01-19 80.83
01-20 58.02
01-21 62.39
01-22 55.84
01-23 78.31
01-24 119.32
01-25 92.11
01-26 168.54
01-27 126.15
01-28 93.33
01-29 57.48
01-30 91.14
01-31 74.88
02-01 59.18
02-02 81.3
02-03 78.27
02-04 81.55
02-05 94.44
02-06 85.84
02-07 79.33
02-08 96.24
02-09 65.15
02-10 63.01
02-11 61.66
02-12 79.95
02-13 72.35
02-14 57.85
02-15 62.68
02-16 58.1
02-17 146.34
02-18 108.33
02-19 89.8
02-20 284.67
02-21 81.42
02-22 282.56
02-23 295.75
02-24 229.91
02-25 95.87
02-26 98.7
02-27 150.67
02-28 153.53
02-29 138.4
03-01 148.73
03-02 157.44
03-03 122.58
03-04 108.85
03-05 162.68
03-06 149.65
03-07 130.42
03-08 104.45
03-09 151.94
03-10 137.76
03-11 196.86
03-12 173.12
03-13 144.21
03-14 132.91
03-15 149.58
03-16 146.83
03-17 146.42
03-18 122.47
03-19 110.72
03-20 121.68
03-21 128.59
03-22 96.09
03-23 83.11
03-24 87.29
03-25 85.86
03-26 104.74
03-27 111.36
03-28 86.54
03-29 85.9
03-30 96.63
03-31 257.11
04-01 269.7
04-02 203.71
04-03 199.08
04-04 190.44
04-05 169.32
04-06 240.83
04-07 240.39
04-08 152.05
04-09 109.51
04-10 89.87
04-11 87.48
04-12 105.98
04-13 85.31
04-14 79.64
04-15 95.74
04-16 131.44
04-17 100.74
04-18 122.83
04-19 208.19
04-20 129.08
04-21 93.55
04-22 80.05
04-23 68.87
04-24 66.54
04-25 78.53
04-26 78.74
04-27 69.16
04-28 91.87
04-29 94.37
04-30 255.01
05-01 303.21
05-02 159.79
05-03 115.53
05-04 129.78
05-05 96.2
05-06 95.22
05-07 89.45
05-08 68.53
05-09 113.61
05-10 153.3
05-11 149.86
05-12 123.85
05-13 127.73
05-14 97.21
05-15 156.02
05-16 131.04
05-17 106.84
05-18 197.85
05-19 113.65
05-20 83.96
05-21 73.05
05-22 85.73
05-23 75.18
05-24 65.22
05-25 56.58
05-26 101.63
05-27 101.03
05-28 86.48
05-29 152.48
05-30 129.37
05-31 103.97
06-01 96.83
06-02 66.16
06-03 59.69
06-04 46.25
06-05 65.53
06-06 57.02
06-07 46.9
06-08 72.81
06-09 127.97
06-10 211.01
06-11 141.16
06-12 186.16
06-13 162.4
06-14 165.0
06-15 130.03
06-16 84.1
06-17 89.44
06-18 119.59
06-19 83.36
06-20 101.25
06-21 134.73
06-22 213.65
06-23 163.28
06-24 103.22
06-25 177.32
06-26 122.39
06-27 224.66
06-28 159.28
06-29 116.2
06-30 106.97
07-01 86.67
07-02 83.31
07-03 86.81
07-04 84.21
07-05 144.84
07-06 164.66
07-07 87.2
07-08 67.66
07-09 61.75
07-10 51.16
07-11 50.07
07-12 41.59
07-13 65.42
07-14 74.65
07-15 46.98
07-16 48.21
07-17 50.32
07-18 46.57
07-19 68.54
07-20 70.19
07-21 45.03
07-22 184.04
07-23 214.21
07-24 131.91
07-25 127.9
07-26 62.06
07-27 52.44
07-28 77.71
07-29 69.19
07-30 44.45
07-31 50.14
08-01 37.86
08-02 84.02
08-03 77.44
08-04 52.16
08-05 39.79
08-06 45.31
08-07 39.01
08-08 40.01
08-09 37.78
08-10 52.87
08-11 39.01
08-12 86.22
08-13 85.39
08-14 69.34
08-15 96.34
08-16 89.65
08-17 97.11
08-18 64.3
08-19 103.95
08-20 67.91
08-21 96.59
08-22 64.44
08-23 48.19
08-24 32.95
08-25 51.25
08-26 66.01
08-27 82.96
08-28 81.51
08-29 56.76
08-30 45.12
08-31 52.47
09-01 42.06
09-02 35.04
09-03 32.35
09-04 40.27
09-05 35.72
09-06 41.82
09-07 32.92
09-08 33.05
09-09 43.91
09-10 38.48
09-11 62.33
09-12 47.09
09-13 49.11
09-14 37.26
09-15 30.17
09-16 29.33
09-17 27.13
09-18 30.84
09-19 75.11
09-20 37.97
09-21 29.52
09-22 38.94
09-23 33.24
09-24 29.05
09-25 26.28
09-26 30.06
09-27 30.59
09-28 129.75
09-29 149.64
09-30 94.55
10-01 66.55
10-02 54.98
10-03 66.53
10-04 65.34
10-05 43.68
10-06 49.51
10-07 71.43
10-08 59.72
10-09 46.74
10-10 34.04
10-11 52.39
10-12 56.86
10-13 45.71
10-14 48.41
10-15 156.27
10-16 85.83
10-17 50.16
10-18 41.94
10-19 44.11
10-20 63.26
10-21 59.68
10-22 65.76
10-23 68.75
10-24 152.28
10-25 186.55
10-26 203.59
10-27 159.18
10-28 118.03
10-29 75.91
10-30 87.24
10-31 146.16
11-01 97.8
11-02 73.32
11-03 89.76
11-04 73.42
11-05 67.5
11-06 61.54
11-07 54.03
11-08 45.96
11-09 69.47
11-10 64.83
11-11 53.1
11-12 64.52
11-13 50.81
11-14 44.38
11-15 47.07
11-16 45.43
11-17 43.75
11-18 49.26
11-19 165.94
11-20 76.02
11-21 61.92
11-22 71.82
11-23 56.0
11-24 76.97
11-25 58.13
11-26 104.93
11-27 111.68
11-28 92.81
11-29 113.08
11-30 85.47
12-01 70.97
12-02 101.84
12-03 73.15
12-04 59.94
12-05 59.47
12-06 46.56
12-07 52.12
12-08 45.92
12-09 43.89
12-10 45.24
12-11 62.1
12-12 60.42
12-13 61.8
12-14 55.47
12-15 105.01
12-16 93.21
12-17 77.58
12-18 65.73
12-19 63.37
12-20 56.04
12-21 60.86
12-22 77.98
12-23 66.0
12-24 81.69
12-25 64.1
12-26 62.09
12-27 74.75
12-28 99.26
12-29 161.84
12-30 168.86
12-31 123.06

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index