Overview Realtime Historical Map View
Freeze Warning
2026-11-13T08:00:00-06:00

* WHAT...Sub-freezing temperatures as low as 28 expected. * WHERE...Portions of northwest Arkansas and east central and northeast Oklahoma. * WHEN...From midnight tonight to 8 AM CST Friday. * IMPACTS...These conditions will kill plants, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Illinois River At Savoy, Ar Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
01-01 234.31
01-02 335.21
01-03 286.65
01-04 305.72
01-05 240.61
01-06 176.45
01-07 144.68
01-08 143.72
01-09 126.08
01-10 126.53
01-11 966.5
01-12 260.3
01-13 214.63
01-14 161.56
01-15 136.84
01-16 120.02
01-17 108.1
01-18 153.0
01-19 213.51
01-20 163.85
01-21 136.84
01-22 119.7
01-23 188.88
01-24 127.69
01-25 115.99
01-26 231.26
01-27 168.82
01-28 146.94
01-29 152.78
01-30 244.45
01-31 151.73
02-01 118.23
02-02 108.62
02-03 101.35
02-04 116.5
02-05 187.45
02-06 174.47
02-07 136.87
02-08 168.0
02-09 256.4
02-10 165.65
02-11 151.87
02-12 201.85
02-13 234.96
02-14 153.97
02-15 155.47
02-16 135.31
02-17 313.33
02-18 181.38
02-19 140.75
02-20 123.49
02-21 403.67
02-22 171.06
02-23 203.04
02-24 815.94
02-25 127.78
02-26 127.25
02-27 192.86
02-28 287.61
02-29 71.5
03-01 173.56
03-02 144.76
03-03 460.65
03-04 234.93
03-05 256.86
03-06 190.62
03-07 161.42
03-08 196.15
03-09 283.87
03-10 249.49
03-11 277.62
03-12 228.05
03-13 220.31
03-14 359.13
03-15 427.35
03-16 246.69
03-17 323.01
03-18 206.32
03-19 227.78
03-20 387.31
03-21 389.38
03-22 341.64
03-23 302.4
03-24 217.12
03-25 389.8
03-26 362.26
03-27 283.92
03-28 452.86
03-29 296.13
03-30 275.2
03-31 381.77
04-01 266.29
04-02 197.27
04-03 203.17
04-04 222.79
04-05 867.76
04-06 384.16
04-07 253.15
04-08 216.73
04-09 165.75
04-10 139.44
04-11 192.96
04-12 147.38
04-13 299.47
04-14 293.55
04-15 214.25
04-16 183.32
04-17 186.52
04-18 158.67
04-19 210.98
04-20 264.45
04-21 336.35
04-22 660.93
04-23 237.69
04-24 297.25
04-25 913.62
04-26 585.51
04-27 366.54
04-28 267.79
04-29 1301.68
04-30 334.26
05-01 999.83
05-02 515.85
05-03 611.15
05-04 591.29
05-05 1136.93
05-06 485.13
05-07 322.86
05-08 244.15
05-09 247.93
05-10 481.4
05-11 321.24
05-12 305.11
05-13 280.17
05-14 198.98
05-15 215.65
05-16 283.62
05-17 196.34
05-18 200.05
05-19 256.11
05-20 197.46
05-21 473.86
05-22 281.92
05-23 219.16
05-24 1712.79
05-25 642.51
05-26 773.81
05-27 592.54
05-28 698.36
05-29 298.19
05-30 401.71
05-31 214.31
06-01 171.91
06-02 199.32
06-03 148.12
06-04 131.14
06-05 191.84
06-06 130.96
06-07 1066.34
06-08 309.35
06-09 378.08
06-10 221.64
06-11 186.61
06-12 129.03
06-13 117.7
06-14 107.08
06-15 166.61
06-16 137.35
06-17 132.91
06-18 113.52
06-19 719.59
06-20 189.2
06-21 139.79
06-22 116.59
06-23 137.56
06-24 286.71
06-25 228.81
06-26 147.26
06-27 580.81
06-28 166.64
06-29 118.33
06-30 89.76
07-01 81.96
07-02 86.23
07-03 108.79
07-04 77.93
07-05 72.27
07-06 66.27
07-07 106.49
07-08 247.56
07-09 221.35
07-10 176.61
07-11 124.19
07-12 56.15
07-13 79.08
07-14 69.78
07-15 130.44
07-16 65.95
07-17 62.33
07-18 89.09
07-19 95.67
07-20 44.65
07-21 42.59
07-22 61.73
07-23 75.32
07-24 57.87
07-25 50.06
07-26 50.57
07-27 91.75
07-28 47.04
07-29 42.21
07-30 45.13
07-31 64.94
08-01 45.38
08-02 48.54
08-03 39.27
08-04 38.29
08-05 35.15
08-06 36.29
08-07 39.35
08-08 35.73
08-09 37.76
08-10 31.31
08-11 32.38
08-12 35.77
08-13 34.18
08-14 53.13
08-15 68.47
08-16 44.3
08-17 51.29
08-18 111.42
08-19 65.16
08-20 101.58
08-21 44.08
08-22 34.87
08-23 41.17
08-24 59.56
08-25 42.16
08-26 36.61
08-27 42.14
08-28 38.69
08-29 60.69
08-30 41.25
08-31 33.57
09-01 32.62
09-02 34.64
09-03 42.39
09-04 30.81
09-05 28.44
09-06 27.91
09-07 27.21
09-08 26.12
09-09 27.09
09-10 33.48
09-11 28.03
09-12 35.11
09-13 29.13
09-14 28.47
09-15 25.93
09-16 25.78
09-17 25.19
09-18 28.57
09-19 28.11
09-20 26.32
09-21 51.74
09-22 41.01
09-23 39.31
09-24 120.75
09-25 86.99
09-26 56.93
09-27 57.54
09-28 43.53
09-29 38.78
09-30 30.49
10-01 34.0
10-02 31.18
10-03 30.68
10-04 28.69
10-05 32.21
10-06 42.36
10-07 124.61
10-08 53.66
10-09 41.87
10-10 35.81
10-11 180.3
10-12 72.74
10-13 63.34
10-14 93.19
10-15 71.44
10-16 65.42
10-17 48.1
10-18 44.09
10-19 43.83
10-20 41.09
10-21 46.23
10-22 51.58
10-23 48.17
10-24 46.11
10-25 258.28
10-26 119.17
10-27 121.52
10-28 135.93
10-29 224.62
10-30 160.09
10-31 142.88
11-01 94.99
11-02 79.45
11-03 65.7
11-04 62.3
11-05 72.49
11-06 64.35
11-07 46.64
11-08 41.84
11-09 137.52
11-10 59.53
11-11 51.29
11-12 49.76
11-13 46.21
11-14 62.33
11-15 61.51
11-16 57.28
11-17 54.76
11-18 53.02
11-19 50.94
11-20 48.2
11-21 64.89
11-22 93.38
11-23 122.02
11-24 93.91
11-25 100.27
11-26 82.7
11-27 139.87
11-28 81.47
11-29 175.55
11-30 103.72
12-01 180.14
12-02 132.68
12-03 109.9
12-04 96.66
12-05 106.95
12-06 95.95
12-07 86.37
12-08 76.99
12-09 106.64
12-10 81.27
12-11 105.97
12-12 81.67
12-13 71.66
12-14 166.48
12-15 372.53
12-16 146.91
12-17 150.22
12-18 454.12
12-19 199.86
12-20 163.22
12-21 133.03
12-22 181.86
12-23 98.4
12-24 95.03
12-25 117.3
12-26 109.52
12-27 787.19
12-28 1961.73
12-29 236.21
12-30 249.95
12-31 217.39

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index