Overview Realtime Historical Map View
Heat Advisory
2026-09-16T19:00:00-05:00

* WHAT...Daily peak heat index values up to 105 degrees. * WHERE...Portions of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri. * WHEN...From 11 AM CDT /noon EDT/ Tuesday to 7 PM CDT /8 PM EDT/ Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Casey Fork At Mount Vernon, Il Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
01-01 188.11
01-02 217.61
01-03 87.51
01-04 317.5
01-05 227.92
01-06 49.58
01-07 29.84
01-08 27.24
01-09 25.01
01-10 74.56
01-11 274.32
01-12 376.64
01-13 300.53
01-14 325.2
01-15 55.51
01-16 39.86
01-17 39.62
01-18 77.33
01-19 307.5
01-20 181.87
01-21 49.61
01-22 33.24
01-23 170.86
01-24 298.27
01-25 87.77
01-26 141.13
01-27 248.04
01-28 118.3
01-29 60.04
01-30 65.63
01-31 266.28
02-01 82.81
02-02 65.61
02-03 69.0
02-04 37.81
02-05 59.77
02-06 81.87
02-07 225.09
02-08 232.68
02-09 86.65
02-10 104.36
02-11 106.51
02-12 164.28
02-13 138.8
02-14 49.58
02-15 37.51
02-16 257.56
02-17 102.67
02-18 363.54
02-19 108.38
02-20 89.42
02-21 105.97
02-22 210.65
02-23 222.02
02-24 108.73
02-25 297.27
02-26 112.48
02-27 143.61
02-28 72.54
02-29 46.88
03-01 183.65
03-02 58.31
03-03 122.8
03-04 265.46
03-05 78.39
03-06 113.38
03-07 76.66
03-08 198.57
03-09 79.46
03-10 130.39
03-11 166.72
03-12 192.69
03-13 104.14
03-14 283.52
03-15 268.38
03-16 133.45
03-17 58.26
03-18 348.72
03-19 337.82
03-20 369.5
03-21 113.44
03-22 31.98
03-23 95.89
03-24 236.1
03-25 447.86
03-26 190.8
03-27 176.48
03-28 272.02
03-29 158.88
03-30 240.29
03-31 374.81
04-01 155.02
04-02 67.32
04-03 139.15
04-04 460.33
04-05 591.32
04-06 522.42
04-07 126.12
04-08 153.63
04-09 58.27
04-10 168.97
04-11 122.77
04-12 91.71
04-13 56.29
04-14 196.22
04-15 166.45
04-16 66.59
04-17 56.96
04-18 140.93
04-19 289.26
04-20 238.94
04-21 188.87
04-22 165.79
04-23 47.09
04-24 75.46
04-25 240.18
04-26 344.72
04-27 217.58
04-28 100.83
04-29 299.8
04-30 559.03
05-01 319.83
05-02 165.89
05-03 273.06
05-04 170.53
05-05 345.57
05-06 277.73
05-07 103.17
05-08 53.7
05-09 165.45
05-10 129.92
05-11 44.3
05-12 112.72
05-13 44.29
05-14 30.54
05-15 190.03
05-16 72.51
05-17 76.64
05-18 91.12
05-19 89.73
05-20 34.0
05-21 48.73
05-22 112.89
05-23 70.68
05-24 23.85
05-25 17.37
05-26 61.1
05-27 34.64
05-28 58.82
05-29 26.68
05-30 121.5
05-31 34.06
06-01 154.98
06-02 219.93
06-03 24.24
06-04 17.19
06-05 59.45
06-06 96.31
06-07 103.27
06-08 61.65
06-09 330.23
06-10 36.84
06-11 69.01
06-12 21.73
06-13 17.72
06-14 11.75
06-15 27.64
06-16 14.58
06-17 145.21
06-18 159.43
06-19 208.56
06-20 436.09
06-21 80.98
06-22 62.15
06-23 81.44
06-24 76.52
06-25 75.96
06-26 43.15
06-27 207.44
06-28 68.83
06-29 31.15
06-30 20.93
07-01 79.15
07-02 74.2
07-03 298.66
07-04 88.88
07-05 38.33
07-06 24.04
07-07 26.22
07-08 130.73
07-09 179.14
07-10 17.83
07-11 46.1
07-12 21.53
07-13 152.19
07-14 16.7
07-15 10.97
07-16 16.03
07-17 266.17
07-18 93.4
07-19 16.53
07-20 16.0
07-21 180.8
07-22 20.65
07-23 13.12
07-24 8.38
07-25 10.11
07-26 43.13
07-27 110.2
07-28 16.13
07-29 82.15
07-30 17.5
07-31 10.11
08-01 6.54
08-02 7.64
08-03 6.32
08-04 14.4
08-05 8.36
08-06 91.39
08-07 8.95
08-08 6.08
08-09 7.7
08-10 6.2
08-11 13.95
08-12 6.75
08-13 38.26
08-14 193.21
08-15 185.29
08-16 273.94
08-17 185.42
08-18 214.39
08-19 17.63
08-20 12.24
08-21 22.38
08-22 72.18
08-23 36.6
08-24 11.25
08-25 17.87
08-26 7.06
08-27 5.75
08-28 11.06
08-29 6.49
08-30 17.64
08-31 47.6
09-01 11.35
09-02 88.83
09-03 14.29
09-04 7.48
09-05 9.96
09-06 10.56
09-07 6.3
09-08 11.32
09-09 324.88
09-10 43.58
09-11 84.76
09-12 10.64
09-13 7.25
09-14 6.13
09-15 5.49
09-16 5.27
09-17 58.73
09-18 10.46
09-19 7.0
09-20 6.2
09-21 6.12
09-22 6.19
09-23 9.62
09-24 6.23
09-25 5.66
09-26 110.68
09-27 44.39
09-28 9.04
09-29 6.31
09-30 8.84
10-01 5.62
10-02 6.25
10-03 109.62
10-04 13.47
10-05 8.17
10-06 8.4
10-07 7.09
10-08 7.39
10-09 6.54
10-10 6.34
10-11 9.25
10-12 26.34
10-13 9.62
10-14 22.39
10-15 10.7
10-16 11.62
10-17 8.8
10-18 7.72
10-19 7.82
10-20 8.43
10-21 9.04
10-22 9.6
10-23 7.55
10-24 7.51
10-25 6.97
10-26 7.27
10-27 174.86
10-28 34.94
10-29 16.64
10-30 17.61
10-31 13.16
11-01 46.33
11-02 34.64
11-03 66.24
11-04 14.77
11-05 17.86
11-06 93.81
11-07 23.95
11-08 16.55
11-09 15.46
11-10 17.55
11-11 14.78
11-12 15.53
11-13 25.68
11-14 15.76
11-15 17.79
11-16 22.71
11-17 15.29
11-18 15.59
11-19 15.34
11-20 16.04
11-21 16.18
11-22 30.1
11-23 51.31
11-24 44.96
11-25 31.18
11-26 95.41
11-27 98.58
11-28 118.36
11-29 141.43
11-30 149.27
12-01 286.64
12-02 76.61
12-03 32.11
12-04 25.58
12-05 42.49
12-06 358.72
12-07 152.14
12-08 30.89
12-09 22.86
12-10 20.63
12-11 17.71
12-12 18.61
12-13 28.29
12-14 19.24
12-15 156.72
12-16 359.95
12-17 81.36
12-18 62.98
12-19 115.15
12-20 47.48
12-21 60.34
12-22 276.83
12-23 91.36
12-24 203.24
12-25 55.86
12-26 39.42
12-27 285.18
12-28 348.69
12-29 45.73
12-30 160.03
12-31 108.56

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index