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

* WHAT...Heat index values up to 105 expected. * WHERE...Portions of DC, central, north central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia. * WHEN...From 11 AM to 8 PM EDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Catoctin Creek At Taylorstown, Va Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
01-01 149.48
01-02 230.04
01-03 115.45
01-04 108.1
01-05 112.22
01-06 103.83
01-07 100.51
01-08 82.62
01-09 76.15
01-10 73.42
01-11 129.64
01-12 175.34
01-13 143.17
01-14 114.97
01-15 98.93
01-16 92.0
01-17 128.43
01-18 111.96
01-19 92.42
01-20 148.11
01-21 120.71
01-22 79.37
01-23 71.9
01-24 87.17
01-25 165.43
01-26 140.66
01-27 109.7
01-28 98.93
01-29 148.34
01-30 98.07
01-31 556.76
02-01 80.75
02-02 95.98
02-03 88.31
02-04 339.48
02-05 205.76
02-06 221.08
02-07 151.08
02-08 161.52
02-09 112.91
02-10 102.61
02-11 100.25
02-12 123.49
02-13 143.31
02-14 152.01
02-15 113.19
02-16 106.68
02-17 255.22
02-18 134.66
02-19 104.58
02-20 122.32
02-21 149.66
02-22 133.27
02-23 116.43
02-24 161.89
02-25 300.21
02-26 153.36
02-27 132.19
02-28 131.65
02-29 106.35
03-01 380.0
03-02 162.85
03-03 150.36
03-04 165.11
03-05 155.99
03-06 132.26
03-07 124.19
03-08 130.19
03-09 109.98
03-10 206.37
03-11 123.64
03-12 103.34
03-13 104.73
03-14 99.04
03-15 96.4
03-16 89.26
03-17 104.91
03-18 92.56
03-19 102.64
03-20 96.99
03-21 95.9
03-22 453.19
03-23 127.34
03-24 129.53
03-25 106.18
03-26 101.87
03-27 90.15
03-28 91.12
03-29 92.85
03-30 78.88
03-31 73.76
04-01 106.05
04-02 110.33
04-03 117.21
04-04 130.13
04-05 96.31
04-06 86.21
04-07 144.15
04-08 125.88
04-09 97.28
04-10 90.21
04-11 81.27
04-12 77.4
04-13 80.97
04-14 91.76
04-15 139.49
04-16 108.85
04-17 129.29
04-18 91.5
04-19 87.45
04-20 131.38
04-21 112.16
04-22 73.65
04-23 73.25
04-24 72.75
04-25 73.3
04-26 79.96
04-27 81.48
04-28 78.25
04-29 87.38
04-30 89.92
05-01 217.59
05-02 125.62
05-03 123.38
05-04 176.14
05-05 120.86
05-06 250.6
05-07 190.19
05-08 176.99
05-09 125.74
05-10 102.84
05-11 130.55
05-12 128.58
05-13 114.32
05-14 212.05
05-15 174.9
05-16 159.19
05-17 158.84
05-18 187.15
05-19 337.49
05-20 187.59
05-21 123.44
05-22 107.61
05-23 130.16
05-24 180.01
05-25 148.05
05-26 189.33
05-27 99.96
05-28 97.35
05-29 132.96
05-30 86.03
05-31 74.1
06-01 150.49
06-02 89.09
06-03 102.79
06-04 116.19
06-05 74.92
06-06 82.11
06-07 70.55
06-08 64.52
06-09 65.42
06-10 62.71
06-11 164.59
06-12 281.09
06-13 77.75
06-14 158.92
06-15 62.19
06-16 51.51
06-17 67.16
06-18 57.93
06-19 192.21
06-20 112.82
06-21 80.42
06-22 61.76
06-23 98.83
06-24 147.53
06-25 84.37
06-26 62.23
06-27 51.3
06-28 93.35
06-29 66.82
06-30 51.96
07-01 46.88
07-02 39.96
07-03 37.21
07-04 33.58
07-05 40.34
07-06 35.09
07-07 82.19
07-08 42.8
07-09 48.53
07-10 48.84
07-11 33.78
07-12 30.61
07-13 33.22
07-14 36.54
07-15 36.03
07-16 34.3
07-17 93.28
07-18 26.22
07-19 31.59
07-20 26.96
07-21 24.55
07-22 201.67
07-23 38.95
07-24 57.98
07-25 75.68
07-26 74.16
07-27 36.49
07-28 38.38
07-29 117.97
07-30 48.36
07-31 118.41
08-01 60.85
08-02 43.84
08-03 41.3
08-04 106.02
08-05 55.41
08-06 42.4
08-07 311.25
08-08 47.02
08-09 33.71
08-10 26.75
08-11 24.74
08-12 28.4
08-13 32.7
08-14 22.72
08-15 19.79
08-16 23.48
08-17 24.25
08-18 26.66
08-19 25.44
08-20 19.64
08-21 24.74
08-22 170.45
08-23 25.88
08-24 27.64
08-25 20.29
08-26 18.19
08-27 17.41
08-28 19.15
08-29 22.77
08-30 18.37
08-31 16.32
09-01 17.21
09-02 87.54
09-03 30.53
09-04 46.12
09-05 22.74
09-06 23.75
09-07 38.22
09-08 33.33
09-09 27.89
09-10 72.05
09-11 51.79
09-12 32.8
09-13 47.91
09-14 29.19
09-15 24.33
09-16 29.77
09-17 24.13
09-18 29.37
09-19 150.7
09-20 31.9
09-21 27.17
09-22 53.38
09-23 35.76
09-24 86.41
09-25 67.69
09-26 59.91
09-27 152.09
09-28 510.08
09-29 96.46
09-30 211.03
10-01 29.39
10-02 31.12
10-03 59.22
10-04 38.13
10-05 45.15
10-06 37.73
10-07 33.42
10-08 31.39
10-09 30.63
10-10 32.38
10-11 41.51
10-12 75.08
10-13 53.22
10-14 51.72
10-15 56.87
10-16 47.2
10-17 39.69
10-18 33.37
10-19 30.02
10-20 252.01
10-21 58.52
10-22 25.82
10-23 25.08
10-24 25.97
10-25 26.44
10-26 26.71
10-27 33.44
10-28 51.71
10-29 40.63
10-30 723.92
10-31 147.22
11-01 97.62
11-02 60.34
11-03 147.64
11-04 56.61
11-05 46.91
11-06 87.45
11-07 90.95
11-08 65.16
11-09 51.98
11-10 84.84
11-11 51.81
11-12 57.8
11-13 67.28
11-14 69.96
11-15 48.74
11-16 88.61
11-17 111.6
11-18 85.12
11-19 63.55
11-20 55.36
11-21 48.91
11-22 49.77
11-23 71.67
11-24 38.26
11-25 191.65
11-26 57.1
11-27 76.44
11-28 70.32
11-29 53.0
11-30 62.82
12-01 73.11
12-02 63.12
12-03 68.83
12-04 59.32
12-05 56.91
12-06 63.03
12-07 77.43
12-08 266.34
12-09 87.82
12-10 104.27
12-11 82.24
12-12 74.06
12-13 60.89
12-14 53.45
12-15 78.93
12-16 521.06
12-17 139.94
12-18 121.33
12-19 96.02
12-20 72.88
12-21 80.97
12-22 104.55
12-23 402.72
12-24 177.98
12-25 346.52
12-26 271.93
12-27 146.64
12-28 134.74
12-29 154.37
12-30 234.27
12-31 129.47

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index