Overview Realtime Historical Map View
Heat Advisory
2026-09-04T19:00:00-05:00

* WHAT...Heat index values up to 101 expected. * WHERE...In Iowa, Clayton and Fayette Counties. In Wisconsin, Grant County. * WHEN...Until 7 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Volga River At Littleport, Ia Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
01-01 595.33
01-02 542.0
01-03 513.67
01-04 483.33
01-05 459.0
01-06 444.67
01-07 379.75
01-08 540.0
01-09 596.67
01-10 560.33
01-11 498.0
01-12 486.0
01-13 452.33
01-14 448.33
01-15 430.0
01-16 414.67
01-17 367.33
01-18 722.5
01-19 460.5
01-20 420.0
01-21 462.5
01-22 427.0
01-23 400.5
01-24 289.67
01-25 555.33
01-26 493.5
01-27 407.5
01-28 241.0
01-29 242.0
01-30 228.0
01-31 201.5
02-01 203.0
02-02 248.0
02-03 212.0
02-04 205.0
02-05 166.0
02-06 164.0
02-07 157.5
02-08 153.5
02-09 147.0
02-10 144.0
02-11 185.0
02-12 208.0
02-13 192.0
02-14 158.0
02-15 137.5
02-16 168.0
02-17 156.5
02-18 164.5
02-19 117.0
02-20 668.5
02-21 875.0
02-22 839.0
02-23 615.0
02-24 483.0
02-25 423.5
02-26 366.5
02-27 323.5
02-28 334.5
02-29 411.0
03-01 755.67
03-02 577.33
03-03 469.33
03-04 439.75
03-05 415.75
03-06 393.0
03-07 343.17
03-08 360.01
03-09 357.18
03-10 471.51
03-11 549.81
03-12 762.68
03-13 519.39
03-14 438.98
03-15 505.79
03-16 742.91
03-17 567.86
03-18 456.73
03-19 542.5
03-20 643.45
03-21 579.7
03-22 454.8
03-23 486.68
03-24 553.35
03-25 526.55
03-26 490.32
03-27 444.0
03-28 446.93
03-29 561.31
03-30 442.57
03-31 458.5
04-01 439.15
04-02 417.5
04-03 414.79
04-04 465.93
04-05 646.69
04-06 523.71
04-07 469.15
04-08 428.85
04-09 391.17
04-10 430.57
04-11 401.15
04-12 394.33
04-13 380.83
04-14 531.92
04-15 546.42
04-16 631.82
04-17 642.42
04-18 579.69
04-19 656.5
04-20 609.25
04-21 646.0
04-22 669.15
04-23 558.67
04-24 562.88
04-25 712.97
04-26 610.85
04-27 544.92
04-28 490.0
04-29 489.85
04-30 494.92
05-01 503.64
05-02 497.62
05-03 495.92
05-04 505.15
05-05 635.5
05-06 481.71
05-07 446.07
05-08 402.08
05-09 409.0
05-10 397.69
05-11 397.93
05-12 379.5
05-13 431.93
05-14 454.92
05-15 407.08
05-16 386.38
05-17 371.46
05-18 351.36
05-19 377.0
05-20 393.62
05-21 393.86
05-22 466.27
05-23 412.64
05-24 402.93
05-25 471.0
05-26 485.8
05-27 561.73
05-28 593.6
05-29 605.36
05-30 504.57
05-31 748.0
06-01 547.53
06-02 396.5
06-03 361.86
06-04 333.5
06-05 392.21
06-06 400.5
06-07 355.23
06-08 359.57
06-09 418.67
06-10 658.71
06-11 923.21
06-12 599.69
06-13 586.07
06-14 470.79
06-15 662.47
06-16 541.54
06-17 484.51
06-18 485.49
06-19 435.74
06-20 1010.52
06-21 3475.85
06-22 678.82
06-23 956.18
06-24 823.55
06-25 666.93
06-26 668.35
06-27 567.75
06-28 522.42
06-29 867.62
06-30 957.83
07-01 768.2
07-02 804.74
07-03 577.92
07-04 581.39
07-05 447.86
07-06 443.78
07-07 371.26
07-08 340.12
07-09 311.01
07-10 343.96
07-11 284.04
07-12 340.34
07-13 342.12
07-14 310.59
07-15 295.43
07-16 272.0
07-17 258.21
07-18 237.93
07-19 241.79
07-20 235.43
07-21 255.4
07-22 855.13
07-23 1094.23
07-24 492.89
07-25 427.69
07-26 332.19
07-27 290.77
07-28 267.21
07-29 457.94
07-30 351.78
07-31 454.27
08-01 417.32
08-02 300.31
08-03 274.54
08-04 253.79
08-05 226.12
08-06 223.56
08-07 313.76
08-08 266.26
08-09 255.74
08-10 244.34
08-11 262.7
08-12 280.52
08-13 287.38
08-14 259.38
08-15 301.59
08-16 244.04
08-17 224.81
08-18 230.72
08-19 221.25
08-20 232.63
08-21 225.32
08-22 204.46
08-23 192.41
08-24 221.63
08-25 192.03
08-26 188.89
08-27 180.45
08-28 174.02
08-29 377.01
08-30 268.07
08-31 235.62
09-01 202.07
09-02 195.64
09-03 210.29
09-04 432.28
09-05 527.68
09-06 470.0
09-07 317.15
09-08 258.32
09-09 210.97
09-10 218.43
09-11 195.86
09-12 282.31
09-13 257.03
09-14 211.41
09-15 181.26
09-16 244.55
09-17 257.3
09-18 231.65
09-19 206.46
09-20 575.01
09-21 642.21
09-22 387.29
09-23 634.67
09-24 637.26
09-25 366.94
09-26 360.63
09-27 338.51
09-28 281.19
09-29 246.37
09-30 235.68
10-01 178.29
10-02 375.28
10-03 333.2
10-04 282.03
10-05 359.15
10-06 391.92
10-07 347.58
10-08 339.78
10-09 422.3
10-10 484.66
10-11 404.76
10-12 307.57
10-13 276.49
10-14 260.31
10-15 295.92
10-16 259.11
10-17 235.83
10-18 219.25
10-19 205.5
10-20 198.71
10-21 152.12
10-22 183.88
10-23 412.42
10-24 252.72
10-25 224.02
10-26 207.05
10-27 247.15
10-28 255.5
10-29 232.88
10-30 221.12
10-31 226.71
11-01 216.36
11-02 213.33
11-03 202.18
11-04 199.14
11-05 236.99
11-06 232.41
11-07 232.14
11-08 213.95
11-09 208.03
11-10 204.53
11-11 216.72
11-12 238.06
11-13 262.95
11-14 228.64
11-15 217.1
11-16 215.72
11-17 206.65
11-18 209.62
11-19 200.78
11-20 197.87
11-21 191.88
11-22 204.32
11-23 199.56
11-24 195.4
11-25 192.65
11-26 194.78
11-27 226.72
11-28 220.49
11-29 274.8
11-30 240.74
12-01 241.19
12-02 244.18
12-03 240.22
12-04 234.92
12-05 233.73
12-06 212.69
12-07 201.11
12-08 203.06
12-09 200.8
12-10 192.6
12-11 198.7
12-12 201.92
12-13 180.31
12-14 167.44
12-15 194.25
12-16 193.86
12-17 408.29
12-18 361.17
12-19 332.17
12-20 273.25
12-21 255.25
12-22 317.6
12-23 300.4
12-24 333.0
12-25 412.6
12-26 366.2
12-27 347.2
12-28 504.8
12-29 465.0
12-30 434.17
12-31 564.75

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index