Overview Realtime Historical Map View
Heat Advisory
2026-07-14T20:00:00-04:00

* WHAT...Heat index values near 100 degrees expected. * WHERE...Cameron, Elk, McKean, Northern Centre, Northern Clinton, Northern Lycoming, Potter, Sullivan, Tioga, and Warren Counties. * WHEN...From 11 AM this morning to 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Clarion River At Johnsonburg, Pa Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012
01-01 723.73
01-02 585.73
01-03 535.91
01-04 595.91
01-05 563.27
01-06 483.55
01-07 449.27
01-08 416.8
01-09 435.5
01-10 521.0
01-11 534.45
01-12 534.73
01-13 514.27
01-14 543.45
01-15 595.55
01-16 539.18
01-17 533.42
01-18 515.0
01-19 449.82
01-20 466.45
01-21 378.24
01-22 362.3
01-23 379.67
01-24 369.23
01-25 421.08
01-26 587.32
01-27 666.0
01-28 519.67
01-29 542.91
01-30 488.13
01-31 525.22
02-01 466.78
02-02 448.63
02-03 353.5
02-04 399.5
02-05 395.4
02-06 402.14
02-07 437.96
02-08 654.56
02-09 436.53
02-10 401.12
02-11 421.27
02-12 409.9
02-13 396.22
02-14 365.11
02-15 346.78
02-16 496.75
02-17 495.13
02-18 625.68
02-19 501.21
02-20 431.77
02-21 387.59
02-22 369.4
02-23 546.59
02-24 460.88
02-25 439.0
02-26 428.55
02-27 653.09
02-28 559.91
02-29 816.67
03-01 468.91
03-02 643.27
03-03 501.36
03-04 555.27
03-05 469.36
03-06 730.3
03-07 700.5
03-08 720.2
03-09 540.8
03-10 497.45
03-11 512.73
03-12 583.83
03-13 586.08
03-14 488.46
03-15 522.0
03-16 488.92
03-17 487.31
03-18 476.54
03-19 434.0
03-20 429.92
03-21 449.57
03-22 356.77
03-23 362.14
03-24 351.14
03-25 324.86
03-26 322.71
03-27 338.71
03-28 301.14
03-29 337.0
03-30 424.64
03-31 429.38
04-01 563.5
04-02 542.86
04-03 556.71
04-04 733.21
04-05 742.21
04-06 650.14
04-07 596.36
04-08 623.07
04-09 627.62
04-10 606.0
04-11 678.5
04-12 685.31
04-13 656.77
04-14 553.77
04-15 622.0
04-16 558.75
04-17 609.75
04-18 546.42
04-19 521.08
04-20 499.75
04-21 590.15
04-22 520.92
04-23 509.23
04-24 455.38
04-25 410.75
04-26 417.85
04-27 443.92
04-28 412.19
04-29 400.92
04-30 511.08
05-01 449.54
05-02 458.58
05-03 411.75
05-04 517.62
05-05 521.54
05-06 562.0
05-07 648.46
05-08 496.17
05-09 528.69
05-10 680.54
05-11 548.62
05-12 520.69
05-13 664.54
05-14 640.77
05-15 624.5
05-16 568.33
05-17 594.75
05-18 534.54
05-19 461.54
05-20 394.92
05-21 392.0
05-22 658.46
05-23 544.54
05-24 457.15
05-25 431.85
05-26 398.92
05-27 346.54
05-28 310.54
05-29 412.38
05-30 369.38
05-31 388.85
06-01 371.77
06-02 351.08
06-03 310.0
06-04 299.54
06-05 283.42
06-06 301.54
06-07 304.75
06-08 263.15
06-09 341.15
06-10 436.46
06-11 357.92
06-12 298.46
06-13 326.15
06-14 355.54
06-15 342.57
06-16 332.5
06-17 332.29
06-18 342.86
06-19 397.15
06-20 416.54
06-21 574.92
06-22 456.38
06-23 366.46
06-24 389.31
06-25 428.46
06-26 618.46
06-27 447.15
06-28 489.85
06-29 416.85
06-30 430.33
07-01 377.31
07-02 384.69
07-03 387.62
07-04 356.85
07-05 320.57
07-06 312.71
07-07 367.77
07-08 338.77
07-09 294.38
07-10 295.93
07-11 268.57
07-12 270.86
07-13 330.69
07-14 270.86
07-15 282.31
07-16 254.08
07-17 272.31
07-18 437.31
07-19 285.62
07-20 279.31
07-21 259.77
07-22 231.54
07-23 248.0
07-24 264.0
07-25 246.0
07-26 230.15
07-27 250.54
07-28 255.0
07-29 229.85
07-30 222.38
07-31 231.85
08-01 216.18
08-02 212.0
08-03 205.46
08-04 256.31
08-05 224.38
08-06 227.54
08-07 213.92
08-08 213.42
08-09 207.0
08-10 203.67
08-11 226.92
08-12 208.92
08-13 316.54
08-14 244.08
08-15 237.46
08-16 218.58
08-17 213.17
08-18 213.18
08-19 271.33
08-20 213.75
08-21 207.67
08-22 304.36
08-23 254.46
08-24 217.33
08-25 211.25
08-26 205.38
08-27 203.23
08-28 208.15
08-29 241.23
08-30 216.08
08-31 204.85
09-01 231.54
09-02 208.08
09-03 211.92
09-04 198.92
09-05 196.31
09-06 216.38
09-07 200.15
09-08 194.62
09-09 199.31
09-10 211.46
09-11 246.15
09-12 253.08
09-13 246.08
09-14 230.77
09-15 218.69
09-16 213.0
09-17 203.15
09-18 299.54
09-19 258.08
09-20 231.23
09-21 203.01
09-22 250.23
09-23 261.78
09-24 235.32
09-25 210.96
09-26 232.89
09-27 235.31
09-28 217.23
09-29 208.77
09-30 236.67
10-01 184.08
10-02 175.67
10-03 175.83
10-04 179.42
10-05 218.67
10-06 196.83
10-07 218.07
10-08 205.67
10-09 204.0
10-10 198.83
10-11 182.5
10-12 170.83
10-13 170.92
10-14 171.58
10-15 169.55
10-16 177.17
10-17 179.25
10-18 189.67
10-19 161.73
10-20 152.52
10-21 190.64
10-22 269.15
10-23 199.75
10-24 169.64
10-25 180.18
10-26 171.67
10-27 172.08
10-28 298.83
10-29 405.33
10-30 552.67
10-31 756.92
11-01 618.08
11-02 470.42
11-03 359.66
11-04 334.55
11-05 226.35
11-06 294.49
11-07 401.06
11-08 336.84
11-09 294.08
11-10 316.55
11-11 408.36
11-12 394.64
11-13 363.82
11-14 296.08
11-15 262.25
11-16 236.92
11-17 218.25
11-18 237.64
11-19 340.69
11-20 283.72
11-21 265.36
11-22 296.41
11-23 248.23
11-24 219.59
11-25 216.47
11-26 252.3
11-27 304.38
11-28 338.23
11-29 297.69
11-30 272.38
12-01 296.08
12-02 288.08
12-03 330.62
12-04 373.62
12-05 334.85
12-06 364.58
12-07 393.54
12-08 367.62
12-09 350.27
12-10 466.15
12-11 448.08
12-12 410.5
12-13 364.42
12-14 344.27
12-15 347.82
12-16 335.8
12-17 371.3
12-18 473.5
12-19 455.73
12-20 440.4
12-21 434.55
12-22 698.83
12-23 633.67
12-24 580.17
12-25 730.92
12-26 626.42
12-27 569.91
12-28 679.45
12-29 535.6
12-30 652.0
12-31 591.91

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index