Overview Realtime Historical Map View
Heat Advisory
2026-07-16T22:00:00-05:00

* WHAT...Heat index values up to 100 each afternoon. * WHERE...Portions of west central Minnesota and north central and northeast South Dakota. * WHEN...Until 10 PM CDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Minnesota River At Ortonville, Mn Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
01-01 123.86
01-02 123.68
01-03 121.85
01-04 117.94
01-05 115.4
01-06 115.63
01-07 111.3
01-08 107.92
01-09 111.41
01-10 106.25
01-11 105.88
01-12 101.37
01-13 100.67
01-14 101.6
01-15 95.4
01-16 96.01
01-17 93.8
01-18 92.99
01-19 93.72
01-20 92.0
01-21 90.51
01-22 93.22
01-23 89.32
01-24 86.03
01-25 85.56
01-26 90.42
01-27 84.98
01-28 90.48
01-29 83.08
01-30 80.56
01-31 84.58
02-01 79.61
02-02 82.71
02-03 90.25
02-04 92.91
02-05 95.67
02-06 88.02
02-07 102.12
02-08 93.47
02-09 95.4
02-10 95.96
02-11 92.84
02-12 96.25
02-13 92.16
02-14 88.21
02-15 94.31
02-16 98.32
02-17 81.12
02-18 86.8
02-19 94.7
02-20 94.57
02-21 94.98
02-22 90.18
02-23 92.23
02-24 91.74
02-25 100.84
02-26 96.12
02-27 103.19
02-28 100.5
02-29 106.5
03-01 126.89
03-02 120.03
03-03 131.02
03-04 132.76
03-05 139.34
03-06 147.24
03-07 163.37
03-08 225.35
03-09 317.47
03-10 328.8
03-11 272.6
03-12 256.48
03-13 344.77
03-14 387.22
03-15 364.53
03-16 357.38
03-17 348.18
03-18 421.88
03-19 386.95
03-20 384.08
03-21 399.38
03-22 388.45
03-23 613.94
03-24 647.31
03-25 555.03
03-26 512.54
03-27 492.32
03-28 502.49
03-29 519.73
03-30 509.91
03-31 563.67
04-01 477.31
04-02 412.19
04-03 401.15
04-04 480.71
04-05 461.28
04-06 473.43
04-07 567.6
04-08 586.05
04-09 447.36
04-10 635.33
04-11 683.36
04-12 870.43
04-13 905.36
04-14 843.36
04-15 965.66
04-16 873.71
04-17 905.02
04-18 902.82
04-19 969.11
04-20 960.98
04-21 880.57
04-22 908.49
04-23 930.0
04-24 898.66
04-25 705.26
04-26 804.8
04-27 683.94
04-28 897.86
04-29 819.28
04-30 912.46
05-01 922.53
05-02 949.07
05-03 851.16
05-04 710.41
05-05 622.84
05-06 599.67
05-07 537.99
05-08 498.85
05-09 454.99
05-10 503.52
05-11 484.89
05-12 470.79
05-13 489.09
05-14 558.21
05-15 543.66
05-16 523.31
05-17 470.26
05-18 428.19
05-19 417.16
05-20 543.51
05-21 462.41
05-22 419.83
05-23 437.44
05-24 456.2
05-25 451.6
05-26 447.57
05-27 377.71
05-28 371.98
05-29 332.82
05-30 301.41
05-31 445.47
06-01 534.84
06-02 579.75
06-03 609.14
06-04 525.6
06-05 484.02
06-06 429.82
06-07 368.87
06-08 307.57
06-09 318.4
06-10 314.71
06-11 282.82
06-12 328.62
06-13 315.72
06-14 424.05
06-15 429.96
06-16 512.91
06-17 507.66
06-18 478.83
06-19 427.78
06-20 562.64
06-21 598.95
06-22 711.47
06-23 812.07
06-24 797.39
06-25 699.07
06-26 662.26
06-27 638.34
06-28 620.77
06-29 589.83
06-30 529.14
07-01 479.12
07-02 420.49
07-03 374.76
07-04 309.31
07-05 281.38
07-06 412.39
07-07 441.64
07-08 373.16
07-09 353.96
07-10 349.83
07-11 369.53
07-12 359.4
07-13 296.85
07-14 317.83
07-15 282.13
07-16 306.12
07-17 282.69
07-18 237.94
07-19 199.54
07-20 222.71
07-21 189.47
07-22 175.16
07-23 183.0
07-24 161.25
07-25 153.84
07-26 160.28
07-27 181.72
07-28 260.11
07-29 299.47
07-30 353.36
07-31 296.85
08-01 250.26
08-02 161.19
08-03 193.61
08-04 178.88
08-05 168.33
08-06 177.73
08-07 255.03
08-08 322.94
08-09 311.02
08-10 291.03
08-11 361.61
08-12 311.71
08-13 250.6
08-14 339.86
08-15 284.44
08-16 186.22
08-17 218.55
08-18 311.92
08-19 399.29
08-20 362.08
08-21 320.73
08-22 353.69
08-23 333.26
08-24 334.48
08-25 264.18
08-26 226.27
08-27 191.54
08-28 179.06
08-29 126.51
08-30 118.24
08-31 109.58
09-01 107.04
09-02 110.88
09-03 99.15
09-04 118.11
09-05 147.32
09-06 114.03
09-07 129.24
09-08 113.85
09-09 90.99
09-10 91.07
09-11 118.44
09-12 128.03
09-13 215.52
09-14 275.92
09-15 225.19
09-16 185.69
09-17 171.06
09-18 186.8
09-19 194.01
09-20 217.69
09-21 208.61
09-22 228.1
09-23 222.51
09-24 224.53
09-25 349.65
09-26 291.03
09-27 256.65
09-28 223.74
09-29 184.46
09-30 151.39
10-01 164.47
10-02 178.34
10-03 225.88
10-04 282.48
10-05 217.1
10-06 214.31
10-07 197.25
10-08 176.77
10-09 161.61
10-10 167.51
10-11 175.97
10-12 189.22
10-13 199.4
10-14 171.95
10-15 187.0
10-16 167.41
10-17 185.39
10-18 195.84
10-19 173.54
10-20 179.21
10-21 193.71
10-22 230.02
10-23 301.29
10-24 289.39
10-25 238.66
10-26 249.28
10-27 275.69
10-28 263.19
10-29 294.98
10-30 269.99
10-31 273.48
11-01 241.69
11-02 207.3
11-03 188.34
11-04 180.43
11-05 182.86
11-06 99.55
11-07 92.02
11-08 96.21
11-09 114.12
11-10 98.54
11-11 124.89
11-12 137.68
11-13 104.06
11-14 150.82
11-15 141.69
11-16 110.34
11-17 121.3
11-18 142.15
11-19 109.35
11-20 107.22
11-21 123.63
11-22 104.49
11-23 113.76
11-24 97.34
11-25 115.13
11-26 131.88
11-27 100.68
11-28 100.11
11-29 126.24
11-30 146.44
12-01 142.64
12-02 132.24
12-03 129.14
12-04 128.87
12-05 123.74
12-06 106.7
12-07 115.55
12-08 117.93
12-09 93.74
12-10 78.08
12-11 84.31
12-12 78.53
12-13 80.62
12-14 86.67
12-15 86.56
12-16 91.92
12-17 85.28
12-18 82.55
12-19 82.55
12-20 90.24
12-21 87.16
12-22 80.63
12-23 83.13
12-24 88.13
12-25 103.63
12-26 102.55
12-27 128.66
12-28 169.7
12-29 186.74
12-30 156.57
12-31 145.61

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index