Overview Realtime Historical Map View
Heat Advisory
2026-07-16T20:00:00-04:00

* WHAT...Heat index values around 100. * WHERE...Portions of north central and western Maryland, northwest Virginia, and eastern West Virginia. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

N F Shenandoah River At Mount Jackson, Va Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
01-01 465.63
01-02 433.71
01-03 453.09
01-04 400.54
01-05 381.52
01-06 360.07
01-07 345.65
01-08 284.94
01-09 273.9
01-10 901.9
01-11 525.54
01-12 446.18
01-13 518.17
01-14 558.92
01-15 440.78
01-16 394.45
01-17 496.5
01-18 397.05
01-19 326.15
01-20 393.52
01-21 462.46
01-22 349.55
01-23 309.58
01-24 291.47
01-25 417.95
01-26 534.06
01-27 418.59
01-28 384.82
01-29 754.35
01-30 448.73
01-31 721.01
02-01 712.48
02-02 737.83
02-03 547.91
02-04 838.34
02-05 614.52
02-06 579.73
02-07 1022.04
02-08 800.52
02-09 559.03
02-10 461.84
02-11 406.22
02-12 386.76
02-13 484.46
02-14 709.0
02-15 583.33
02-16 523.0
02-17 1218.36
02-18 753.42
02-19 554.75
02-20 635.0
02-21 701.77
02-22 869.23
02-23 770.08
02-24 719.08
02-25 949.0
02-26 813.92
02-27 681.69
02-28 619.46
02-29 406.5
03-01 684.5
03-02 692.5
03-03 564.57
03-04 640.43
03-05 577.71
03-06 652.71
03-07 612.93
03-08 540.86
03-09 534.43
03-10 635.0
03-11 663.21
03-12 678.14
03-13 795.64
03-14 580.07
03-15 493.64
03-16 440.86
03-17 418.71
03-18 446.79
03-19 403.96
03-20 464.29
03-21 479.73
03-22 600.07
03-23 456.13
03-24 422.13
03-25 409.53
03-26 413.53
03-27 401.07
03-28 383.67
03-29 387.0
03-30 388.67
03-31 399.21
04-01 409.67
04-02 422.2
04-03 398.8
04-04 420.0
04-05 395.47
04-06 360.53
04-07 394.4
04-08 543.71
04-09 433.5
04-10 385.5
04-11 350.33
04-12 555.71
04-13 435.86
04-14 489.57
04-15 528.31
04-16 581.62
04-17 796.46
04-18 519.0
04-19 431.46
04-20 549.92
04-21 734.36
04-22 485.36
04-23 406.86
04-24 363.07
04-25 355.64
04-26 459.18
04-27 488.25
04-28 448.94
04-29 440.43
04-30 504.86
05-01 906.07
05-02 639.07
05-03 605.44
05-04 489.0
05-05 745.6
05-06 915.83
05-07 663.58
05-08 1133.15
05-09 883.32
05-10 561.25
05-11 476.43
05-12 443.54
05-13 443.57
05-14 1220.65
05-15 508.05
05-16 535.19
05-17 824.24
05-18 1960.44
05-19 1178.62
05-20 855.14
05-21 538.96
05-22 484.71
05-23 854.83
05-24 683.16
05-25 549.13
05-26 758.24
05-27 549.43
05-28 577.09
05-29 597.89
05-30 496.43
05-31 410.36
06-01 623.03
06-02 435.9
06-03 1032.4
06-04 904.42
06-05 611.07
06-06 497.04
06-07 379.97
06-08 337.71
06-09 497.8
06-10 351.0
06-11 671.57
06-12 557.68
06-13 392.54
06-14 336.51
06-15 273.13
06-16 531.27
06-17 352.59
06-18 458.04
06-19 332.46
06-20 320.09
06-21 379.01
06-22 302.52
06-23 1071.14
06-24 554.57
06-25 418.07
06-26 291.15
06-27 241.67
06-28 263.22
06-29 222.56
06-30 187.97
07-01 169.67
07-02 577.61
07-03 256.33
07-04 200.9
07-05 220.61
07-06 196.68
07-07 152.95
07-08 154.91
07-09 156.69
07-10 183.92
07-11 158.64
07-12 356.31
07-13 249.13
07-14 208.38
07-15 178.51
07-16 159.94
07-17 215.14
07-18 180.47
07-19 178.94
07-20 463.99
07-21 222.04
07-22 196.4
07-23 170.1
07-24 155.26
07-25 148.76
07-26 177.34
07-27 151.61
07-28 152.61
07-29 134.74
07-30 128.91
07-31 150.41
08-01 173.06
08-02 182.76
08-03 233.51
08-04 391.49
08-05 210.13
08-06 175.19
08-07 163.06
08-08 200.28
08-09 219.01
08-10 154.87
08-11 140.69
08-12 127.07
08-13 202.8
08-14 165.36
08-15 133.29
08-16 176.68
08-17 158.22
08-18 252.29
08-19 240.36
08-20 177.84
08-21 185.12
08-22 213.72
08-23 179.18
08-24 154.65
08-25 143.49
08-26 118.85
08-27 109.97
08-28 102.49
08-29 215.69
08-30 165.54
08-31 129.66
09-01 191.23
09-02 606.0
09-03 218.37
09-04 157.09
09-05 135.16
09-06 119.86
09-07 142.6
09-08 187.76
09-09 156.01
09-10 273.34
09-11 230.46
09-12 170.24
09-13 143.33
09-14 126.01
09-15 113.14
09-16 104.46
09-17 106.5
09-18 858.45
09-19 405.01
09-20 202.41
09-21 151.45
09-22 128.45
09-23 127.82
09-24 207.84
09-25 175.17
09-26 235.11
09-27 185.04
09-28 532.72
09-29 371.34
09-30 330.77
10-01 130.32
10-02 109.22
10-03 123.93
10-04 336.89
10-05 275.94
10-06 200.79
10-07 159.75
10-08 141.39
10-09 133.3
10-10 134.29
10-11 126.8
10-12 132.54
10-13 123.15
10-14 158.26
10-15 152.65
10-16 153.31
10-17 131.39
10-18 115.86
10-19 107.04
10-20 101.69
10-21 97.96
10-22 96.65
10-23 94.02
10-24 92.68
10-25 89.5
10-26 86.08
10-27 85.78
10-28 91.01
10-29 98.32
10-30 302.79
10-31 409.46
11-01 260.07
11-02 198.69
11-03 168.0
11-04 167.52
11-05 149.15
11-06 146.03
11-07 179.54
11-08 163.63
11-09 146.42
11-10 155.01
11-11 166.15
11-12 202.72
11-13 353.42
11-14 324.65
11-15 254.39
11-16 247.26
11-17 305.51
11-18 272.84
11-19 255.58
11-20 251.42
11-21 256.36
11-22 220.23
11-23 198.89
11-24 248.51
11-25 500.1
11-26 272.42
11-27 223.35
11-28 206.68
11-29 173.01
11-30 330.26
12-01 308.84
12-02 336.01
12-03 314.58
12-04 259.58
12-05 220.34
12-06 224.4
12-07 220.24
12-08 659.15
12-09 391.12
12-10 322.99
12-11 280.3
12-12 236.33
12-13 207.51
12-14 181.02
12-15 252.43
12-16 925.35
12-17 548.88
12-18 381.95
12-19 354.77
12-20 295.85
12-21 338.0
12-22 943.49
12-23 676.34
12-24 642.54
12-25 959.84
12-26 651.9
12-27 534.71
12-28 418.54
12-29 468.65
12-30 877.07
12-31 538.53

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index