Overview Realtime Historical Map View
Heat Advisory
2026-07-15T20:00:00-04:00

* WHAT...Heat index values up to 104 expected. * WHERE...Portions of central, south central, southwest, and west central Michigan. * WHEN...Until 8 PM EDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Grand River At Jackson, 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
01-01 167.92
01-02 169.6
01-03 167.5
01-04 174.5
01-05 167.5
01-06 158.0
01-07 146.66
01-08 136.92
01-09 136.58
01-10 141.92
01-11 157.0
01-12 164.33
01-13 160.42
01-14 159.42
01-15 156.03
01-16 160.06
01-17 151.47
01-18 152.55
01-19 157.11
01-20 150.42
01-21 146.46
01-22 138.09
01-23 139.85
01-24 143.75
01-25 144.06
01-26 170.89
01-27 158.57
01-28 145.76
01-29 146.4
01-30 150.16
01-31 145.41
02-01 152.57
02-02 149.29
02-03 153.6
02-04 151.78
02-05 149.39
02-06 147.29
02-07 145.52
02-08 141.25
02-09 130.71
02-10 132.97
02-11 120.82
02-12 129.19
02-13 125.71
02-14 124.26
02-15 125.72
02-16 121.87
02-17 128.71
02-18 127.46
02-19 140.38
02-20 136.81
02-21 164.64
02-22 160.96
02-23 170.36
02-24 182.54
02-25 157.85
02-26 156.62
02-27 184.86
02-28 189.29
02-29 190.5
03-01 192.93
03-02 197.64
03-03 199.79
03-04 198.01
03-05 204.26
03-06 208.39
03-07 221.03
03-08 214.94
03-09 223.64
03-10 221.79
03-11 228.29
03-12 229.79
03-13 234.57
03-14 219.71
03-15 228.36
03-16 235.21
03-17 225.07
03-18 213.27
03-19 215.79
03-20 220.75
03-21 215.71
03-22 214.08
03-23 220.42
03-24 227.11
03-25 219.75
03-26 215.4
03-27 214.87
03-28 227.36
03-29 228.87
03-30 216.53
03-31 235.5
04-01 250.67
04-02 246.47
04-03 253.67
04-04 265.33
04-05 271.93
04-06 273.0
04-07 250.03
04-08 236.99
04-09 232.2
04-10 222.63
04-11 235.47
04-12 239.43
04-13 233.71
04-14 227.07
04-15 244.85
04-16 254.38
04-17 241.73
04-18 227.59
04-19 238.61
04-20 234.26
04-21 226.61
04-22 218.69
04-23 221.99
04-24 213.4
04-25 204.38
04-26 203.33
04-27 198.36
04-28 209.07
04-29 208.29
04-30 214.3
05-01 249.15
05-02 216.72
05-03 205.44
05-04 223.21
05-05 219.9
05-06 217.01
05-07 219.37
05-08 215.99
05-09 208.63
05-10 199.01
05-11 208.39
05-12 205.81
05-13 191.43
05-14 196.19
05-15 209.74
05-16 209.41
05-17 205.84
05-18 199.69
05-19 219.11
05-20 210.99
05-21 211.07
05-22 213.04
05-23 210.41
05-24 187.45
05-25 184.18
05-26 205.01
05-27 205.12
05-28 204.03
05-29 209.73
05-30 193.31
05-31 205.67
06-01 180.47
06-02 184.09
06-03 187.25
06-04 168.17
06-05 169.17
06-06 167.68
06-07 169.83
06-08 147.18
06-09 133.59
06-10 138.12
06-11 124.06
06-12 138.69
06-13 126.76
06-14 130.22
06-15 132.25
06-16 125.3
06-17 127.11
06-18 123.61
06-19 146.29
06-20 125.46
06-21 126.6
06-22 127.04
06-23 155.59
06-24 127.44
06-25 130.48
06-26 157.69
06-27 176.56
06-28 132.22
06-29 127.37
06-30 127.95
07-01 96.91
07-02 115.9
07-03 115.59
07-04 105.16
07-05 97.59
07-06 106.67
07-07 105.95
07-08 97.82
07-09 94.26
07-10 89.38
07-11 85.68
07-12 84.85
07-13 83.75
07-14 79.21
07-15 79.56
07-16 85.21
07-17 91.82
07-18 88.09
07-19 81.45
07-20 84.66
07-21 79.84
07-22 78.36
07-23 69.91
07-24 68.77
07-25 73.44
07-26 67.14
07-27 73.56
07-28 68.79
07-29 72.27
07-30 77.93
07-31 77.45
08-01 80.37
08-02 74.25
08-03 93.59
08-04 77.29
08-05 73.25
08-06 68.67
08-07 75.69
08-08 63.7
08-09 61.45
08-10 73.52
08-11 62.04
08-12 115.91
08-13 96.04
08-14 80.5
08-15 95.12
08-16 129.72
08-17 82.93
08-18 75.43
08-19 70.02
08-20 68.38
08-21 76.15
08-22 65.54
08-23 60.95
08-24 62.59
08-25 73.61
08-26 60.35
08-27 58.79
08-28 57.39
08-29 64.1
08-30 74.41
08-31 67.67
09-01 56.59
09-02 78.75
09-03 56.39
09-04 64.96
09-05 59.34
09-06 63.8
09-07 57.88
09-08 60.84
09-09 56.1
09-10 58.02
09-11 59.04
09-12 75.85
09-13 63.6
09-14 63.35
09-15 62.81
09-16 60.89
09-17 58.79
09-18 58.24
09-19 60.38
09-20 59.91
09-21 64.48
09-22 73.22
09-23 74.34
09-24 62.61
09-25 60.88
09-26 63.08
09-27 61.74
09-28 83.47
09-29 68.46
09-30 72.63
10-01 67.22
10-02 67.94
10-03 67.08
10-04 78.52
10-05 90.74
10-06 100.38
10-07 98.24
10-08 97.15
10-09 110.66
10-10 96.76
10-11 88.92
10-12 96.71
10-13 104.04
10-14 108.65
10-15 103.76
10-16 90.69
10-17 89.3
10-18 86.06
10-19 88.92
10-20 101.33
10-21 102.13
10-22 98.98
10-23 94.76
10-24 94.6
10-25 120.99
10-26 121.24
10-27 132.33
10-28 119.34
10-29 122.77
10-30 126.44
10-31 120.29
11-01 130.23
11-02 127.9
11-03 119.86
11-04 114.77
11-05 112.79
11-06 109.21
11-07 117.38
11-08 114.92
11-09 113.91
11-10 111.95
11-11 111.37
11-12 108.05
11-13 104.26
11-14 107.45
11-15 111.98
11-16 105.63
11-17 100.44
11-18 117.88
11-19 111.81
11-20 104.16
11-21 100.49
11-22 106.05
11-23 103.5
11-24 101.36
11-25 94.83
11-26 111.94
11-27 121.89
11-28 127.68
11-29 136.39
11-30 131.15
12-01 135.0
12-02 149.87
12-03 147.17
12-04 152.33
12-05 157.96
12-06 165.43
12-07 159.61
12-08 123.4
12-09 149.6
12-10 146.64
12-11 138.67
12-12 150.03
12-13 146.71
12-14 137.33
12-15 134.63
12-16 129.25
12-17 115.12
12-18 105.75
12-19 104.29
12-20 105.41
12-21 109.08
12-22 126.11
12-23 122.28
12-24 119.88
12-25 122.22
12-26 112.32
12-27 121.44
12-28 127.73
12-29 134.76
12-30 145.12
12-31 160.52

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index