Overview Realtime Historical Map View
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.

Ohio River At Sewickley, 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 58341.67
01-02 63516.67
01-03 63191.67
01-04 62516.67
01-05 55325.0
01-06 55481.82
01-07 48966.67
01-08 43858.33
01-09 42058.33
01-10 43950.0
01-11 49216.67
01-12 48150.0
01-13 56450.0
01-14 56508.33
01-15 56308.33
01-16 50816.67
01-17 50207.69
01-18 43214.62
01-19 48823.08
01-20 48592.31
01-21 51433.33
01-22 44291.67
01-23 43227.27
01-24 41408.33
01-25 45333.33
01-26 52683.33
01-27 51958.33
01-28 52808.33
01-29 55208.33
01-30 49192.31
01-31 44192.31
02-01 50653.85
02-02 49066.67
02-03 44958.33
02-04 50261.54
02-05 54348.46
02-06 47807.69
02-07 51161.54
02-08 51746.15
02-09 55895.71
02-10 46242.86
02-11 48626.15
02-12 48528.57
02-13 51171.43
02-14 50407.14
02-15 45400.0
02-16 49276.92
02-17 61461.54
02-18 45125.0
02-19 54508.33
02-20 55964.29
02-21 58507.14
02-22 60064.29
02-23 59028.57
02-24 57921.43
02-25 54076.92
02-26 59907.69
02-27 61885.71
02-28 62571.43
02-29 62175.0
03-01 66421.43
03-02 75173.57
03-03 68292.86
03-04 62214.29
03-05 69485.71
03-06 64835.71
03-07 58314.29
03-08 56557.14
03-09 53650.0
03-10 52635.71
03-11 54235.71
03-12 56907.14
03-13 61264.29
03-14 57050.0
03-15 56278.57
03-16 57978.57
03-17 52485.71
03-18 49535.71
03-19 48014.29
03-20 48421.43
03-21 48933.33
03-22 40607.14
03-23 40026.67
03-24 39306.67
03-25 42800.0
03-26 40120.0
03-27 40253.33
03-28 44606.67
03-29 45040.0
03-30 46073.33
03-31 45842.86
04-01 47960.0
04-02 60260.0
04-03 63326.67
04-04 69373.33
04-05 73313.33
04-06 66840.0
04-07 65526.67
04-08 61773.33
04-09 62964.29
04-10 61986.67
04-11 61040.0
04-12 51576.92
04-13 57300.0
04-14 54194.29
04-15 50330.77
04-16 51007.69
04-17 54684.62
04-18 51768.46
04-19 51300.0
04-20 49833.33
04-21 47201.54
04-22 47185.71
04-23 45487.86
04-24 40450.0
04-25 36923.08
04-26 37585.71
04-27 42964.29
04-28 41550.0
04-29 37985.71
04-30 38635.71
05-01 45680.0
05-02 44885.71
05-03 44392.86
05-04 49021.43
05-05 53733.33
05-06 55906.67
05-07 62653.33
05-08 58957.14
05-09 57580.0
05-10 56813.33
05-11 53013.33
05-12 50700.0
05-13 47673.33
05-14 45928.57
05-15 47121.43
05-16 49671.43
05-17 53078.57
05-18 47520.0
05-19 46113.33
05-20 40714.29
05-21 36726.67
05-22 35840.0
05-23 40826.67
05-24 41026.67
05-25 36442.67
05-26 34080.0
05-27 31608.67
05-28 33294.67
05-29 36959.33
05-30 39199.33
05-31 35059.33
06-01 36077.33
06-02 30295.33
06-03 28830.67
06-04 28192.67
06-05 25107.14
06-06 21957.14
06-07 25101.43
06-08 21633.33
06-09 21273.33
06-10 22718.0
06-11 23672.67
06-12 22666.43
06-13 23361.43
06-14 24820.71
06-15 29748.0
06-16 31814.67
06-17 29122.67
06-18 30256.67
06-19 34564.29
06-20 36738.57
06-21 37007.14
06-22 39140.71
06-23 36680.0
06-24 33505.0
06-25 33566.43
06-26 30555.0
06-27 29094.29
06-28 29361.43
06-29 36923.57
06-30 31485.71
07-01 31045.0
07-02 30137.86
07-03 29456.43
07-04 24648.57
07-05 23101.33
07-06 19440.67
07-07 19862.14
07-08 19952.86
07-09 21095.71
07-10 21029.33
07-11 23668.0
07-12 23147.33
07-13 19015.71
07-14 21251.33
07-15 19440.71
07-16 18886.43
07-17 17569.29
07-18 17540.71
07-19 20217.14
07-20 18082.86
07-21 19021.43
07-22 18287.86
07-23 19647.86
07-24 18381.43
07-25 17119.29
07-26 17500.0
07-27 15057.86
07-28 16478.57
07-29 22262.14
07-30 24205.0
07-31 21702.86
08-01 15534.17
08-02 14902.86
08-03 14153.57
08-04 13824.29
08-05 13058.57
08-06 13310.71
08-07 11020.71
08-08 12548.46
08-09 13134.17
08-10 12556.67
08-11 13615.38
08-12 13116.43
08-13 13168.57
08-14 15954.29
08-15 15209.29
08-16 14671.54
08-17 13253.08
08-18 13879.17
08-19 13876.92
08-20 13656.15
08-21 11963.08
08-22 11721.67
08-23 13698.57
08-24 17168.46
08-25 14361.54
08-26 14576.43
08-27 12652.14
08-28 10944.29
08-29 15706.43
08-30 15981.43
08-31 13907.14
09-01 14989.29
09-02 18315.0
09-03 14570.71
09-04 13473.57
09-05 13331.43
09-06 12976.43
09-07 14777.86
09-08 16955.71
09-09 12584.29
09-10 23974.29
09-11 28658.57
09-12 19639.29
09-13 17572.14
09-14 16547.14
09-15 15241.43
09-16 14367.86
09-17 13018.57
09-18 13393.57
09-19 16097.14
09-20 14062.14
09-21 13093.57
09-22 13156.15
09-23 13045.0
09-24 11745.71
09-25 11182.14
09-26 13885.71
09-27 14637.14
09-28 15706.43
09-29 19605.0
09-30 19956.92
10-01 12899.23
10-02 12816.15
10-03 13664.62
10-04 14934.62
10-05 18487.14
10-06 16621.43
10-07 15437.14
10-08 14562.14
10-09 15543.85
10-10 13795.0
10-11 12712.14
10-12 12439.29
10-13 12792.14
10-14 12442.14
10-15 14504.62
10-16 15215.71
10-17 15906.43
10-18 15660.0
10-19 15339.29
10-20 15787.14
10-21 14057.69
10-22 20193.57
10-23 20937.86
10-24 19283.57
10-25 19950.0
10-26 18135.0
10-27 17599.29
10-28 19565.71
10-29 25503.57
10-30 31402.86
10-31 42550.0
11-01 39614.29
11-02 38157.14
11-03 35857.14
11-04 34250.0
11-05 28361.54
11-06 29116.92
11-07 34026.15
11-08 31290.77
11-09 30045.38
11-10 28752.31
11-11 28128.46
11-12 28646.15
11-13 32619.23
11-14 29608.57
11-15 27775.38
11-16 29016.43
11-17 30287.86
11-18 30100.0
11-19 30000.0
11-20 34966.67
11-21 30642.86
11-22 29276.92
11-23 30778.57
11-24 34446.15
11-25 31186.15
11-26 30816.43
11-27 32228.57
11-28 34938.46
11-29 31010.0
11-30 30500.0
12-01 30842.86
12-02 32150.0
12-03 33637.86
12-04 34071.43
12-05 34442.86
12-06 33546.15
12-07 38821.43
12-08 47621.43
12-09 44592.86
12-10 41764.29
12-11 45942.86
12-12 43842.86
12-13 40628.57
12-14 37469.23
12-15 35600.0
12-16 37276.92
12-17 36484.62
12-18 41007.69
12-19 42423.08
12-20 39758.33
12-21 41125.0
12-22 48715.38
12-23 56369.23
12-24 54676.92
12-25 55369.23
12-26 54358.33
12-27 52772.73
12-28 53418.18
12-29 58941.67
12-30 54018.18
12-31 60266.67

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index