Overview Realtime Historical Map View
Flood Watch
2026-08-27T23:00:00-04:00

* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of southern Connecticut, including the following areas, Northern Fairfield and Southern Fairfield, northeast New Jersey, including the following areas, Eastern Bergen, Eastern Essex, Eastern Passaic, Eastern Union, Hudson, Western Bergen, Western Essex, Western Passaic and Western Union, and southeast New York, including the following areas, Bronx, Kings (Brooklyn), New York (Manhattan), Northern Nassau, Northern Queens, Northern Westchester, Orange, Putnam, Richmond (Staten Island), Rockland, Southern Nassau, Southern Queens and Southern Westchester. * WHEN...Until 11 PM EDT this evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - For portions of the NYC/NJ metro, total rainfall amounts around 2 to 3 inches with local amounts up to 4 inches possible. Elsewhere, generally 1 to 1.5 inches with locally higher amounts possible. - http://www.weather.gov/safety/flood

Fivemile River Near New Canaan, Ct. 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 3.73
01-02 3.53
01-03 2.97
01-04 3.17
01-05 3.09
01-06 2.98
01-07 5.23
01-08 2.6
01-09 2.28
01-10 11.36
01-11 3.08
01-12 6.25
01-13 6.28
01-14 3.61
01-15 3.71
01-16 2.99
01-17 2.9
01-18 2.57
01-19 10.96
01-20 2.98
01-21 2.93
01-22 2.02
01-23 1.81
01-24 2.57
01-25 4.16
01-26 8.06
01-27 3.7
01-28 3.23
01-29 2.86
01-30 2.23
01-31 2.31
02-01 5.5
02-02 2.48
02-03 2.01
02-04 5.14
02-05 2.69
02-06 1.91
02-07 2.15
02-08 2.38
02-09 2.05
02-10 1.63
02-11 1.73
02-12 1.99
02-13 2.1
02-14 1.91
02-15 1.66
02-16 2.37
02-17 6.34
02-18 2.88
02-19 2.52
02-20 2.3
02-21 1.89
02-22 1.55
02-23 2.72
02-24 2.89
02-25 7.26
02-26 3.44
02-27 2.96
02-28 9.5
02-29 2.08
03-01 4.39
03-02 3.87
03-03 4.38
03-04 3.6
03-05 2.75
03-06 3.6
03-07 4.97
03-08 3.25
03-09 2.82
03-10 5.93
03-11 3.55
03-12 3.3
03-13 10.64
03-14 4.56
03-15 4.59
03-16 3.29
03-17 4.78
03-18 3.88
03-19 3.26
03-20 4.8
03-21 3.84
03-22 3.15
03-23 3.18
03-24 4.54
03-25 3.66
03-26 3.17
03-27 3.06
03-28 3.5
03-29 3.46
03-30 7.73
03-31 4.56
04-01 5.45
04-02 3.51
04-03 3.02
04-04 3.63
04-05 3.49
04-06 2.75
04-07 3.66
04-08 6.12
04-09 3.24
04-10 2.57
04-11 2.51
04-12 2.49
04-13 3.26
04-14 3.74
04-15 3.14
04-16 7.47
04-17 6.85
04-18 3.46
04-19 4.29
04-20 2.95
04-21 5.56
04-22 2.87
04-23 3.77
04-24 2.54
04-25 1.93
04-26 2.65
04-27 3.4
04-28 2.26
04-29 2.08
04-30 2.71
05-01 14.48
05-02 5.03
05-03 2.6
05-04 2.91
05-05 2.55
05-06 3.35
05-07 2.53
05-08 1.87
05-09 1.92
05-10 2.71
05-11 1.84
05-12 1.46
05-13 1.41
05-14 0.92
05-15 1.08
05-16 1.85
05-17 2.3
05-18 2.0
05-19 2.28
05-20 1.48
05-21 1.99
05-22 1.51
05-23 1.76
05-24 2.27
05-25 1.84
05-26 2.34
05-27 1.21
05-28 0.93
05-29 1.44
05-30 1.4
05-31 1.65
06-01 1.94
06-02 1.16
06-03 1.42
06-04 1.29
06-05 0.74
06-06 0.89
06-07 0.68
06-08 8.55
06-09 2.24
06-10 1.31
06-11 4.18
06-12 1.78
06-13 1.0
06-14 3.89
06-15 1.89
06-16 0.92
06-17 0.73
06-18 1.01
06-19 1.2
06-20 1.09
06-21 0.53
06-22 0.41
06-23 0.63
06-24 2.2
06-25 0.75
06-26 0.56
06-27 0.39
06-28 0.77
06-29 0.73
06-30 0.4
07-01 0.53
07-02 2.22
07-03 1.08
07-04 2.24
07-05 0.86
07-06 0.55
07-07 1.03
07-08 0.66
07-09 0.97
07-10 2.59
07-11 0.91
07-12 1.27
07-13 0.74
07-14 0.64
07-15 4.12
07-16 1.45
07-17 0.93
07-18 0.48
07-19 0.43
07-20 0.3
07-21 0.3
07-22 0.41
07-23 0.87
07-24 0.83
07-25 0.37
07-26 0.4
07-27 0.33
07-28 0.26
07-29 0.44
07-30 0.52
07-31 0.32
08-01 0.22
08-02 0.43
08-03 0.26
08-04 0.32
08-05 0.24
08-06 0.27
08-07 0.21
08-08 0.4
08-09 0.23
08-10 0.31
08-11 0.27
08-12 0.25
08-13 0.41
08-14 0.38
08-15 1.79
08-16 1.28
08-17 0.69
08-18 0.86
08-19 0.82
08-20 0.47
08-21 1.79
08-22 1.34
08-23 1.11
08-24 0.4
08-25 0.52
08-26 0.3
08-27 0.83
08-28 1.4
08-29 2.31
08-30 0.83
08-31 0.78
09-01 0.66
09-02 6.81
09-03 1.09
09-04 0.77
09-05 0.76
09-06 0.57
09-07 1.79
09-08 1.4
09-09 1.83
09-10 1.14
09-11 1.04
09-12 0.76
09-13 1.82
09-14 0.7
09-15 0.56
09-16 0.45
09-17 0.45
09-18 0.39
09-19 0.81
09-20 0.48
09-21 0.55
09-22 0.66
09-23 0.74
09-24 4.25
09-25 1.87
09-26 3.46
09-27 2.1
09-28 1.09
09-29 2.27
09-30 1.83
10-01 1.3
10-02 1.05
10-03 1.47
10-04 1.68
10-05 2.0
10-06 1.11
10-07 1.05
10-08 0.92
10-09 0.85
10-10 0.91
10-11 1.02
10-12 0.94
10-13 1.08
10-14 1.41
10-15 1.67
10-16 1.13
10-17 1.52
10-18 0.58
10-19 0.56
10-20 2.9
10-21 1.09
10-22 0.72
10-23 0.79
10-24 0.7
10-25 0.84
10-26 3.4
10-27 4.02
10-28 3.04
10-29 3.33
10-30 4.33
10-31 3.39
11-01 2.6
11-02 1.44
11-03 1.43
11-04 1.12
11-05 1.03
11-06 1.05
11-07 1.07
11-08 1.09
11-09 1.17
11-10 1.9
11-11 1.61
11-12 2.01
11-13 1.97
11-14 1.85
11-15 1.7
11-16 1.91
11-17 2.9
11-18 2.12
11-19 1.87
11-20 1.78
11-21 1.67
11-22 2.09
11-23 2.06
11-24 2.8
11-25 2.38
11-26 1.9
11-27 2.52
11-28 6.63
11-29 2.58
11-30 2.67
12-01 2.58
12-02 2.33
12-03 2.3
12-04 2.36
12-05 2.3
12-06 2.54
12-07 3.56
12-08 3.86
12-09 3.06
12-10 4.09
12-11 2.61
12-12 2.01
12-13 1.6
12-14 2.5
12-15 2.28
12-16 2.54
12-17 2.64
12-18 4.71
12-19 2.95
12-20 2.07
12-21 2.87
12-22 7.86
12-23 4.05
12-24 4.51
12-25 4.85
12-26 3.46
12-27 3.76
12-28 8.79
12-29 4.97
12-30 7.84
12-31 4.05

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index