Heat Advisory
2026-08-08T20:00:00-04:00

* WHAT...Heat index values up to 103 degrees expected. * WHERE...Portions of northern Delaware, central, northern, and southern New Jersey, and southeast Pennsylvania. * WHEN...From 10 AM this morning to 8 PM EDT Saturday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Warm and very humid conditions at night will not offer much relief from the heat and humidity.

Chester Creek Near Chester, 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
01-01 148.05
01-02 214.44
01-03 101.5
01-04 117.8
01-05 103.39
01-06 102.31
01-07 167.26
01-08 95.49
01-09 93.01
01-10 504.02
01-11 143.52
01-12 159.28
01-13 168.67
01-14 105.99
01-15 99.71
01-16 99.55
01-17 141.01
01-18 97.15
01-19 140.61
01-20 151.01
01-21 109.94
01-22 91.56
01-23 114.37
01-24 126.77
01-25 156.08
01-26 271.68
01-27 128.99
01-28 109.01
01-29 115.65
01-30 107.33
01-31 95.95
02-01 112.95
02-02 106.11
02-03 106.06
02-04 161.47
02-05 174.21
02-06 139.16
02-07 117.17
02-08 138.73
02-09 98.82
02-10 92.98
02-11 103.53
02-12 130.26
02-13 133.4
02-14 127.95
02-15 109.33
02-16 110.35
02-17 173.81
02-18 119.73
02-19 109.06
02-20 108.27
02-21 109.93
02-22 139.92
02-23 118.96
02-24 121.97
02-25 234.09
02-26 126.07
02-27 105.52
02-28 119.81
02-29 112.93
03-01 174.11
03-02 125.24
03-03 167.92
03-04 171.44
03-05 169.41
03-06 148.01
03-07 135.05
03-08 109.22
03-09 124.61
03-10 280.08
03-11 205.63
03-12 122.57
03-13 138.74
03-14 100.59
03-15 124.71
03-16 100.25
03-17 116.07
03-18 98.04
03-19 112.0
03-20 142.74
03-21 109.91
03-22 146.59
03-23 104.01
03-24 146.98
03-25 146.33
03-26 113.72
03-27 98.01
03-28 108.7
03-29 160.65
03-30 162.25
03-31 154.28
04-01 238.0
04-02 136.97
04-03 126.22
04-04 160.69
04-05 118.47
04-06 101.46
04-07 130.32
04-08 222.93
04-09 108.18
04-10 100.08
04-11 95.06
04-12 124.88
04-13 107.39
04-14 109.35
04-15 98.56
04-16 151.26
04-17 102.98
04-18 87.13
04-19 252.48
04-20 95.6
04-21 98.71
04-22 90.92
04-23 203.89
04-24 96.34
04-25 87.07
04-26 107.64
04-27 116.11
04-28 85.73
04-29 131.23
04-30 101.15
05-01 542.62
05-02 111.72
05-03 92.56
05-04 91.72
05-05 91.52
05-06 122.85
05-07 122.14
05-08 187.63
05-09 98.91
05-10 89.34
05-11 96.84
05-12 86.87
05-13 106.45
05-14 121.91
05-15 91.19
05-16 111.28
05-17 156.09
05-18 102.51
05-19 85.17
05-20 102.31
05-21 121.32
05-22 108.7
05-23 155.18
05-24 116.68
05-25 87.93
05-26 122.69
05-27 81.31
05-28 93.47
05-29 153.34
05-30 98.81
05-31 119.37
06-01 74.62
06-02 98.32
06-03 119.07
06-04 157.0
06-05 79.63
06-06 85.7
06-07 69.16
06-08 198.11
06-09 112.85
06-10 75.08
06-11 241.94
06-12 91.86
06-13 125.63
06-14 92.66
06-15 224.59
06-16 70.33
06-17 81.17
06-18 69.27
06-19 74.76
06-20 218.7
06-21 134.84
06-22 66.89
06-23 88.88
06-24 102.01
06-25 79.1
06-26 72.26
06-27 188.54
06-28 101.63
06-29 76.34
06-30 60.89
07-01 71.67
07-02 136.28
07-03 119.98
07-04 80.69
07-05 63.55
07-06 57.81
07-07 130.03
07-08 89.49
07-09 137.14
07-10 254.81
07-11 113.2
07-12 122.83
07-13 151.07
07-14 56.13
07-15 89.25
07-16 75.09
07-17 65.65
07-18 77.4
07-19 110.88
07-20 53.77
07-21 49.03
07-22 92.63
07-23 77.17
07-24 144.82
07-25 135.6
07-26 127.57
07-27 58.1
07-28 54.08
07-29 92.71
07-30 54.88
07-31 51.21
08-01 70.45
08-02 74.53
08-03 51.9
08-04 59.69
08-05 113.11
08-06 66.8
08-07 50.34
08-08 191.24
08-09 57.28
08-10 114.75
08-11 72.74
08-12 71.74
08-13 86.4
08-14 101.75
08-15 92.21
08-16 125.93
08-17 50.27
08-18 46.77
08-19 87.98
08-20 143.92
08-21 54.95
08-22 126.49
08-23 107.28
08-24 64.75
08-25 46.98
08-26 53.66
08-27 41.84
08-28 444.39
08-29 92.82
08-30 64.04
08-31 51.95
09-01 80.16
09-02 312.67
09-03 77.59
09-04 119.84
09-05 69.18
09-06 52.22
09-07 206.11
09-08 88.91
09-09 68.44
09-10 102.3
09-11 64.14
09-12 61.56
09-13 56.43
09-14 53.57
09-15 46.49
09-16 48.86
09-17 44.4
09-18 51.53
09-19 79.39
09-20 51.74
09-21 43.06
09-22 52.08
09-23 77.66
09-24 121.06
09-25 69.48
09-26 89.27
09-27 60.91
09-28 52.9
09-29 81.72
09-30 96.4
10-01 60.2
10-02 53.89
10-03 132.0
10-04 59.2
10-05 61.98
10-06 55.54
10-07 48.14
10-08 53.25
10-09 50.35
10-10 58.31
10-11 58.79
10-12 107.36
10-13 62.07
10-14 58.69
10-15 64.19
10-16 73.36
10-17 85.06
10-18 53.31
10-19 47.86
10-20 65.0
10-21 56.92
10-22 48.54
10-23 73.3
10-24 49.85
10-25 48.71
10-26 56.64
10-27 54.84
10-28 71.4
10-29 101.66
10-30 472.9
10-31 153.71
11-01 85.44
11-02 84.66
11-03 78.31
11-04 61.16
11-05 51.65
11-06 66.39
11-07 74.18
11-08 63.21
11-09 57.97
11-10 92.82
11-11 62.62
11-12 111.28
11-13 74.92
11-14 71.63
11-15 63.01
11-16 134.14
11-17 87.45
11-18 85.8
11-19 64.9
11-20 63.71
11-21 62.24
11-22 210.01
11-23 164.1
11-24 78.25
11-25 273.69
11-26 82.08
11-27 182.26
11-28 107.34
11-29 71.55
11-30 133.49
12-01 201.85
12-02 113.19
12-03 95.55
12-04 93.91
12-05 78.37
12-06 79.81
12-07 146.76
12-08 250.58
12-09 81.59
12-10 127.29
12-11 227.04
12-12 87.74
12-13 76.86
12-14 78.72
12-15 93.05
12-16 193.8
12-17 137.72
12-18 353.15
12-19 109.09
12-20 94.33
12-21 113.69
12-22 118.18
12-23 141.41
12-24 199.28
12-25 389.27
12-26 129.96
12-27 228.78
12-28 358.65
12-29 134.34
12-30 153.96
12-31 115.95

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index