Overview Realtime Historical Map View
Freeze Warning
2026-10-18T09:00:00-04:00

* WHAT...Sub-freezing temperatures in the upper 20s and low 30s are expected. * WHERE...Portions of northern and western Maryland, central, northern, and western Virginia, and eastern West Virginia. * WHEN...From 1 AM to 9 AM EDT Sunday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Little Falls At Blue Mount, Md Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
01-01 101.73
01-02 126.44
01-03 79.01
01-04 77.33
01-05 77.49
01-06 74.8
01-07 77.68
01-08 67.33
01-09 70.8
01-10 160.87
01-11 81.6
01-12 95.13
01-13 98.5
01-14 77.96
01-15 74.02
01-16 72.25
01-17 87.54
01-18 74.8
01-19 68.23
01-20 136.68
01-21 76.63
01-22 69.13
01-23 69.21
01-24 79.1
01-25 173.2
01-26 95.84
01-27 80.41
01-28 78.08
01-29 76.28
01-30 69.2
01-31 216.05
02-01 85.61
02-02 78.91
02-03 75.62
02-04 124.62
02-05 106.77
02-06 94.33
02-07 81.09
02-08 84.51
02-09 74.37
02-10 70.46
02-11 76.26
02-12 76.12
02-13 86.05
02-14 74.85
02-15 73.55
02-16 77.33
02-17 95.59
02-18 86.36
02-19 73.61
02-20 77.56
02-21 79.76
02-22 82.08
02-23 87.98
02-24 86.16
02-25 129.8
02-26 89.55
02-27 80.16
02-28 80.49
02-29 83.7
03-01 92.33
03-02 90.36
03-03 88.69
03-04 93.56
03-05 126.11
03-06 90.51
03-07 79.45
03-08 75.36
03-09 84.65
03-10 119.8
03-11 177.71
03-12 100.43
03-13 108.06
03-14 82.03
03-15 88.6
03-16 82.36
03-17 100.89
03-18 78.09
03-19 78.31
03-20 79.86
03-21 74.13
03-22 172.69
03-23 85.19
03-24 82.3
03-25 87.24
03-26 82.23
03-27 76.89
03-28 76.89
03-29 77.81
03-30 81.13
03-31 104.84
04-01 104.79
04-02 89.97
04-03 92.18
04-04 95.15
04-05 84.21
04-06 80.49
04-07 100.83
04-08 99.37
04-09 81.27
04-10 77.28
04-11 73.03
04-12 70.08
04-13 76.45
04-14 76.34
04-15 73.68
04-16 80.63
04-17 74.02
04-18 68.3
04-19 77.69
04-20 104.99
04-21 74.63
04-22 67.9
04-23 76.36
04-24 66.25
04-25 64.81
04-26 75.11
04-27 70.94
04-28 64.96
04-29 77.08
04-30 82.38
05-01 182.19
05-02 98.84
05-03 86.5
05-04 95.45
05-05 80.13
05-06 87.56
05-07 101.53
05-08 89.54
05-09 87.67
05-10 78.34
05-11 89.29
05-12 76.53
05-13 76.51
05-14 86.04
05-15 89.06
05-16 93.41
05-17 92.24
05-18 77.95
05-19 97.69
05-20 88.46
05-21 74.47
05-22 76.53
05-23 89.45
05-24 85.72
05-25 71.63
05-26 82.21
05-27 66.2
05-28 82.64
05-29 82.3
05-30 78.89
05-31 79.01
06-01 60.64
06-02 95.83
06-03 63.48
06-04 108.58
06-05 60.71
06-06 73.28
06-07 61.23
06-08 60.95
06-09 62.05
06-10 54.81
06-11 73.18
06-12 84.45
06-13 72.93
06-14 62.49
06-15 56.81
06-16 52.99
06-17 54.93
06-18 52.85
06-19 58.51
06-20 62.04
06-21 73.79
06-22 55.49
06-23 70.31
06-24 53.09
06-25 49.8
06-26 61.43
06-27 49.04
06-28 59.69
06-29 59.09
06-30 45.63
07-01 52.48
07-02 48.52
07-03 43.75
07-04 51.89
07-05 45.95
07-06 46.28
07-07 59.99
07-08 50.5
07-09 54.53
07-10 129.33
07-11 46.29
07-12 49.17
07-13 43.1
07-14 44.26
07-15 61.41
07-16 42.5
07-17 87.69
07-18 44.85
07-19 43.74
07-20 40.26
07-21 36.12
07-22 63.01
07-23 112.32
07-24 102.83
07-25 217.6
07-26 142.19
07-27 99.97
07-28 68.61
07-29 67.33
07-30 51.55
07-31 62.84
08-01 53.29
08-02 64.76
08-03 66.19
08-04 61.72
08-05 48.58
08-06 43.56
08-07 47.01
08-08 53.24
08-09 46.71
08-10 41.88
08-11 40.76
08-12 36.99
08-13 45.69
08-14 60.66
08-15 42.91
08-16 41.12
08-17 39.49
08-18 46.55
08-19 48.86
08-20 39.76
08-21 40.2
08-22 99.21
08-23 46.72
08-24 40.85
08-25 36.16
08-26 34.42
08-27 43.0
08-28 54.64
08-29 42.41
08-30 37.13
08-31 33.82
09-01 61.21
09-02 71.18
09-03 51.43
09-04 40.01
09-05 37.68
09-06 45.83
09-07 57.08
09-08 96.53
09-09 61.03
09-10 77.54
09-11 64.49
09-12 51.83
09-13 60.25
09-14 44.88
09-15 47.85
09-16 40.03
09-17 40.1
09-18 51.5
09-19 46.27
09-20 39.15
09-21 37.99
09-22 41.69
09-23 41.8
09-24 54.33
09-25 44.55
09-26 49.38
09-27 42.52
09-28 63.25
09-29 74.59
09-30 133.39
10-01 40.19
10-02 41.86
10-03 56.0
10-04 43.72
10-05 53.65
10-06 43.4
10-07 42.91
10-08 43.79
10-09 39.19
10-10 42.21
10-11 61.65
10-12 61.83
10-13 46.71
10-14 48.91
10-15 46.51
10-16 51.75
10-17 46.99
10-18 40.31
10-19 39.33
10-20 46.44
10-21 43.4
10-22 44.21
10-23 45.71
10-24 47.34
10-25 40.76
10-26 61.06
10-27 42.47
10-28 48.29
10-29 75.36
10-30 269.81
10-31 79.33
11-01 213.06
11-02 58.11
11-03 115.96
11-04 52.54
11-05 44.55
11-06 54.08
11-07 56.72
11-08 54.08
11-09 47.58
11-10 61.15
11-11 51.12
11-12 59.31
11-13 59.21
11-14 55.86
11-15 49.95
11-16 75.01
11-17 64.01
11-18 58.51
11-19 52.86
11-20 50.99
11-21 49.41
11-22 89.4
11-23 83.8
11-24 65.38
11-25 139.22
11-26 62.54
11-27 75.11
11-28 64.46
11-29 56.98
11-30 64.74
12-01 76.71
12-02 67.64
12-03 64.03
12-04 59.9
12-05 56.74
12-06 56.35
12-07 73.37
12-08 119.27
12-09 59.14
12-10 65.57
12-11 84.99
12-12 58.74
12-13 54.31
12-14 54.78
12-15 59.99
12-16 140.89
12-17 86.29
12-18 205.08
12-19 69.68
12-20 62.22
12-21 90.73
12-22 82.17
12-23 117.45
12-24 90.12
12-25 183.58
12-26 80.78
12-27 99.46
12-28 95.88
12-29 85.55
12-30 89.45
12-31 76.69

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index