Heat Advisory
2026-07-15T20:00:00-04:00

* WHAT...Heat index values up to 100 expected. * WHERE...Portions of east central Ohio, northwest, southwest, and western Pennsylvania, and northern and the northern panhandle of West Virginia. * WHEN...From noon to 8 PM EDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Clarion River Near Piney, Pa Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
01-01 971.45
01-02 1785.99
01-03 893.18
01-04 1385.65
01-05 1067.62
01-06 1172.15
01-07 293.83
01-08 253.23
01-09 251.1
01-10 625.41
01-11 1105.83
01-12 1330.73
01-13 824.04
01-14 802.45
01-15 1476.63
01-16 1136.14
01-17 1170.29
01-18 201.92
01-19 922.77
01-20 412.47
01-21 610.73
01-22 541.46
01-23 55.1
01-24 665.94
01-25 915.87
01-26 1641.67
01-27 1870.83
01-28 1771.32
01-29 2068.12
01-30 1454.64
01-31 1557.16
02-01 1346.46
02-02 1172.36
02-03 57.76
02-04 306.36
02-05 346.86
02-06 369.55
02-07 295.29
02-08 1494.57
02-09 1186.74
02-10 822.23
02-11 1080.2
02-12 854.12
02-13 1052.08
02-14 850.71
02-15 829.65
02-16 966.32
02-17 574.58
02-18 890.99
02-19 1618.34
02-20 787.22
02-21 1372.2
02-22 1559.08
02-23 1349.57
02-24 1291.47
02-25 961.68
02-26 1123.13
02-27 1301.46
02-28 1734.05
02-29 1746.53
03-01 2099.95
03-02 2642.48
03-03 3213.1
03-04 1647.43
03-05 1062.94
03-06 1248.38
03-07 1307.72
03-08 2499.81
03-09 1385.64
03-10 1450.57
03-11 1978.71
03-12 1087.91
03-13 1856.36
03-14 1947.84
03-15 591.92
03-16 1304.28
03-17 1206.96
03-18 908.79
03-19 1111.8
03-20 1628.14
03-21 1406.43
03-22 491.63
03-23 739.04
03-24 1116.83
03-25 947.45
03-26 570.15
03-27 885.0
03-28 957.92
03-29 1098.11
03-30 1447.72
03-31 1758.84
04-01 2943.4
04-02 3370.67
04-03 3332.0
04-04 3952.0
04-05 3951.07
04-06 3938.87
04-07 3240.07
04-08 3369.8
04-09 3163.21
04-10 2600.8
04-11 2738.93
04-12 3510.07
04-13 3478.36
04-14 2856.14
04-15 2724.62
04-16 2903.77
04-17 3540.46
04-18 2792.46
04-19 2420.15
04-20 2286.31
04-21 2211.71
04-22 2530.43
04-23 2157.07
04-24 2053.43
04-25 1874.46
04-26 1833.0
04-27 2395.43
04-28 1980.64
04-29 1781.64
04-30 1847.07
05-01 2516.87
05-02 2373.07
05-03 2305.86
05-04 2499.73
05-05 2806.13
05-06 2834.07
05-07 3149.27
05-08 2573.5
05-09 2606.93
05-10 2808.87
05-11 3030.73
05-12 2357.53
05-13 2779.0
05-14 2444.33
05-15 2310.0
05-16 2851.0
05-17 2820.71
05-18 2302.0
05-19 2023.6
05-20 1841.43
05-21 1589.13
05-22 3921.2
05-23 2505.4
05-24 2051.53
05-25 1762.27
05-26 1852.4
05-27 1692.13
05-28 1427.6
05-29 1734.13
05-30 1785.13
05-31 1708.73
06-01 1735.27
06-02 1694.87
06-03 1707.73
06-04 1281.27
06-05 1282.57
06-06 1241.2
06-07 1288.21
06-08 1134.47
06-09 1143.6
06-10 1531.73
06-11 1370.33
06-12 1282.07
06-13 1393.36
06-14 1585.29
06-15 2085.0
06-16 1602.6
06-17 2017.67
06-18 1921.27
06-19 3004.86
06-20 2523.64
06-21 2018.71
06-22 1902.21
06-23 1323.79
06-24 1018.71
06-25 861.71
06-26 1465.86
06-27 1071.64
06-28 2167.29
06-29 1765.29
06-30 1111.79
07-01 846.14
07-02 1193.29
07-03 1245.36
07-04 1070.14
07-05 997.07
07-06 705.87
07-07 652.5
07-08 876.36
07-09 773.69
07-10 570.93
07-11 553.71
07-12 500.0
07-13 646.0
07-14 666.33
07-15 651.5
07-16 436.86
07-17 385.86
07-18 641.14
07-19 796.93
07-20 841.86
07-21 594.31
07-22 556.71
07-23 658.29
07-24 666.57
07-25 558.79
07-26 674.14
07-27 438.14
07-28 534.36
07-29 472.71
07-30 409.0
07-31 351.07
08-01 367.08
08-02 344.57
08-03 354.57
08-04 309.43
08-05 336.43
08-06 288.64
08-07 316.57
08-08 287.15
08-09 276.77
08-10 251.46
08-11 299.57
08-12 341.21
08-13 380.0
08-14 526.43
08-15 325.29
08-16 250.15
08-17 293.0
08-18 249.58
08-19 964.77
08-20 589.0
08-21 315.38
08-22 501.92
08-23 741.0
08-24 611.08
08-25 721.0
08-26 481.77
08-27 579.36
08-28 344.0
08-29 354.14
08-30 465.36
08-31 394.79
09-01 248.93
09-02 569.86
09-03 250.57
09-04 349.64
09-05 363.07
09-06 251.08
09-07 311.0
09-08 248.54
09-09 266.93
09-10 497.14
09-11 1349.57
09-12 750.0
09-13 515.36
09-14 312.29
09-15 375.0
09-16 336.86
09-17 309.36
09-18 1160.79
09-19 823.0
09-20 531.21
09-21 317.14
09-22 494.15
09-23 379.36
09-24 762.93
09-25 311.43
09-26 447.36
09-27 493.0
09-28 458.86
09-29 401.93
09-30 337.69
10-01 602.54
10-02 327.46
10-03 291.31
10-04 411.69
10-05 526.86
10-06 470.71
10-07 330.86
10-08 394.07
10-09 224.38
10-10 382.79
10-11 318.21
10-12 230.21
10-13 235.57
10-14 241.0
10-15 279.08
10-16 430.07
10-17 476.64
10-18 405.29
10-19 357.36
10-20 303.57
10-21 438.54
10-22 1061.36
10-23 485.93
10-24 554.93
10-25 371.07
10-26 481.07
10-27 557.43
10-28 1074.71
10-29 1264.43
10-30 1576.79
10-31 1767.29
11-01 2317.58
11-02 1617.44
11-03 1335.14
11-04 865.59
11-05 573.54
11-06 1004.7
11-07 1649.31
11-08 606.31
11-09 572.53
11-10 399.97
11-11 922.94
11-12 589.41
11-13 1174.17
11-14 877.83
11-15 346.38
11-16 215.98
11-17 256.37
11-18 828.71
11-19 587.13
11-20 636.13
11-21 385.8
11-22 193.13
11-23 292.67
11-24 701.62
11-25 532.76
11-26 560.52
11-27 533.22
11-28 665.55
11-29 655.09
11-30 825.79
12-01 699.76
12-02 432.92
12-03 533.47
12-04 788.74
12-05 1128.21
12-06 551.19
12-07 512.15
12-08 1031.02
12-09 460.61
12-10 764.51
12-11 1075.76
12-12 1217.36
12-13 843.47
12-14 556.7
12-15 610.15
12-16 526.76
12-17 319.9
12-18 599.95
12-19 698.27
12-20 685.3
12-21 1229.48
12-22 2132.12
12-23 2661.09
12-24 1705.88
12-25 1281.66
12-26 829.31
12-27 1730.98
12-28 1261.33
12-29 1833.8
12-30 1084.57
12-31 1227.78

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index