Overview Realtime Historical Map View
Heat Advisory
2026-07-15T20:00:00-04:00

* WHAT...Heat index values up to 104 expected. * WHERE...Adams, Cumberland, Franklin, Fulton, Lancaster, and York Counties. * WHEN...From 11 AM to 8 PM EDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Conestoga River At Lancaster, 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
01-01 639.17
01-02 641.42
01-03 559.73
01-04 590.58
01-05 546.92
01-06 501.75
01-07 619.08
01-08 500.45
01-09 467.58
01-10 828.5
01-11 634.25
01-12 878.17
01-13 749.33
01-14 652.42
01-15 568.75
01-16 515.58
01-17 579.69
01-18 502.25
01-19 452.92
01-20 481.31
01-21 559.73
01-22 439.75
01-23 423.73
01-24 540.6
01-25 707.31
01-26 869.2
01-27 633.82
01-28 602.42
01-29 620.92
01-30 484.75
01-31 479.25
02-01 722.56
02-02 519.93
02-03 494.28
02-04 1036.58
02-05 735.09
02-06 667.38
02-07 559.21
02-08 700.54
02-09 548.66
02-10 467.52
02-11 466.21
02-12 649.86
02-13 541.62
02-14 569.31
02-15 497.08
02-16 533.75
02-17 1103.42
02-18 545.54
02-19 501.31
02-20 496.07
02-21 576.93
02-22 566.5
02-23 534.14
02-24 541.0
02-25 858.46
02-26 683.08
02-27 586.29
02-28 635.07
02-29 645.0
03-01 910.07
03-02 719.14
03-03 706.57
03-04 625.86
03-05 610.36
03-06 654.36
03-07 560.64
03-08 540.21
03-09 487.07
03-10 791.86
03-11 808.93
03-12 999.71
03-13 999.93
03-14 723.07
03-15 899.93
03-16 718.14
03-17 614.57
03-18 591.43
03-19 591.53
03-20 588.0
03-21 524.4
03-22 849.86
03-23 586.8
03-24 673.73
03-25 695.4
03-26 564.47
03-27 510.67
03-28 560.73
03-29 786.53
03-30 563.47
03-31 731.36
04-01 801.8
04-02 661.27
04-03 756.6
04-04 893.6
04-05 661.4
04-06 567.07
04-07 778.87
04-08 874.4
04-09 589.07
04-10 540.14
04-11 487.86
04-12 525.0
04-13 572.92
04-14 728.93
04-15 488.46
04-16 564.0
04-17 601.08
04-18 476.08
04-19 465.23
04-20 478.85
04-21 496.43
04-22 465.29
04-23 423.64
04-24 441.79
04-25 407.29
04-26 484.5
04-27 518.29
04-28 410.64
04-29 381.86
04-30 400.07
05-01 1098.27
05-02 779.79
05-03 592.5
05-04 556.4
05-05 530.73
05-06 559.2
05-07 683.13
05-08 624.07
05-09 510.07
05-10 572.93
05-11 457.8
05-12 449.47
05-13 493.27
05-14 671.67
05-15 471.64
05-16 512.86
05-17 925.36
05-18 643.6
05-19 512.47
05-20 729.57
05-21 604.73
05-22 488.4
05-23 512.93
05-24 467.4
05-25 440.67
05-26 399.4
05-27 384.4
05-28 368.6
05-29 427.0
05-30 441.93
05-31 405.07
06-01 411.4
06-02 445.93
06-03 539.27
06-04 473.2
06-05 393.53
06-06 386.64
06-07 351.86
06-08 363.2
06-09 406.1
06-10 353.19
06-11 500.66
06-12 570.73
06-13 467.79
06-14 543.79
06-15 379.2
06-16 341.67
06-17 355.27
06-18 326.6
06-19 438.83
06-20 369.36
06-21 490.9
06-22 359.91
06-23 315.99
06-24 337.36
06-25 358.64
06-26 302.07
06-27 321.81
06-28 401.43
06-29 426.88
06-30 316.7
07-01 472.06
07-02 880.61
07-03 443.76
07-04 359.76
07-05 354.87
07-06 421.33
07-07 331.07
07-08 342.64
07-09 456.36
07-10 473.2
07-11 341.67
07-12 570.8
07-13 351.31
07-14 381.93
07-15 364.71
07-16 450.36
07-17 338.71
07-18 365.57
07-19 312.79
07-20 268.29
07-21 249.5
07-22 260.79
07-23 318.21
07-24 520.0
07-25 457.43
07-26 348.14
07-27 333.29
07-28 475.14
07-29 463.77
07-30 330.15
07-31 295.15
08-01 296.71
08-02 327.34
08-03 385.62
08-04 426.61
08-05 1059.55
08-06 363.84
08-07 303.49
08-08 476.38
08-09 341.46
08-10 292.23
08-11 287.57
08-12 288.64
08-13 262.43
08-14 645.14
08-15 351.23
08-16 326.42
08-17 279.91
08-18 251.02
08-19 561.96
08-20 380.13
08-21 270.95
08-22 432.15
08-23 429.01
08-24 443.59
08-25 301.36
08-26 259.92
08-27 237.04
08-28 241.96
08-29 850.29
08-30 341.51
08-31 264.84
09-01 630.48
09-02 1257.82
09-03 490.54
09-04 361.11
09-05 338.42
09-06 352.06
09-07 703.59
09-08 290.47
09-09 302.23
09-10 508.42
09-11 563.46
09-12 472.08
09-13 446.77
09-14 340.46
09-15 284.38
09-16 382.79
09-17 307.8
09-18 321.07
09-19 351.43
09-20 316.79
09-21 260.51
09-22 248.82
09-23 247.1
09-24 531.57
09-25 419.49
09-26 423.36
09-27 336.71
09-28 295.43
09-29 317.86
09-30 337.51
10-01 326.84
10-02 254.46
10-03 471.38
10-04 327.85
10-05 384.5
10-06 287.2
10-07 256.01
10-08 281.5
10-09 263.15
10-10 274.21
10-11 308.93
10-12 800.36
10-13 454.07
10-14 337.49
10-15 379.69
10-16 445.43
10-17 484.07
10-18 302.21
10-19 256.29
10-20 401.21
10-21 305.64
10-22 268.21
10-23 244.29
10-24 245.57
10-25 230.25
10-26 228.99
10-27 247.94
10-28 412.73
10-29 259.04
10-30 798.04
10-31 716.48
11-01 552.91
11-02 448.8
11-03 447.39
11-04 373.04
11-05 274.56
11-06 332.02
11-07 440.56
11-08 296.95
11-09 278.41
11-10 380.75
11-11 268.68
11-12 287.52
11-13 348.06
11-14 371.65
11-15 294.41
11-16 278.01
11-17 396.56
11-18 382.95
11-19 325.51
11-20 316.65
11-21 274.49
11-22 279.85
11-23 386.79
11-24 549.46
11-25 657.46
11-26 388.43
11-27 478.07
11-28 459.21
11-29 349.64
11-30 356.93
12-01 524.79
12-02 380.36
12-03 384.86
12-04 381.5
12-05 329.64
12-06 345.23
12-07 360.57
12-08 540.57
12-09 489.15
12-10 419.64
12-11 593.86
12-12 443.14
12-13 383.29
12-14 354.85
12-15 411.23
12-16 482.77
12-17 490.05
12-18 564.46
12-19 725.23
12-20 485.62
12-21 457.0
12-22 635.85
12-23 575.23
12-24 792.0
12-25 861.15
12-26 665.54
12-27 601.18
12-28 641.08
12-29 785.0
12-30 751.08
12-31 677.83

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index