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

* WHAT...Sub-freezing temperatures as low as 30 expected. * WHERE...In Connecticut, Northern Fairfield, Northern Middlesex, Northern New Haven, and Northern New London Counties. In New Jersey, Western Passaic County. In New York, Orange and Putnam Counties. * WHEN...From midnight tonight to 9 AM EDT Sunday. * IMPACTS...Frost and freeze conditions could kill crops and other sensitive vegetation.

Pomperaug River At Southbury, 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
01-01 265.19
01-02 167.55
01-03 157.69
01-04 164.18
01-05 158.74
01-06 180.79
01-07 191.89
01-08 140.92
01-09 136.66
01-10 357.73
01-11 226.53
01-12 212.63
01-13 240.18
01-14 198.17
01-15 197.3
01-16 158.6
01-17 150.34
01-18 138.29
01-19 325.47
01-20 200.59
01-21 136.75
01-22 122.02
01-23 142.33
01-24 151.66
01-25 278.8
01-26 359.96
01-27 204.87
01-28 178.26
01-29 181.75
01-30 144.01
01-31 127.21
02-01 145.35
02-02 124.19
02-03 114.81
02-04 161.23
02-05 202.05
02-06 115.81
02-07 140.34
02-08 128.11
02-09 116.09
02-10 108.33
02-11 146.71
02-12 151.31
02-13 127.61
02-14 115.65
02-15 109.59
02-16 113.64
02-17 214.11
02-18 140.38
02-19 128.18
02-20 124.87
02-21 127.29
02-22 117.68
02-23 178.28
02-24 154.01
02-25 265.16
02-26 167.67
02-27 165.38
02-28 249.1
02-29 249.75
03-01 188.49
03-02 185.07
03-03 211.94
03-04 189.36
03-05 178.0
03-06 328.86
03-07 332.46
03-08 213.83
03-09 199.58
03-10 303.1
03-11 219.42
03-12 286.97
03-13 323.9
03-14 220.14
03-15 241.79
03-16 287.0
03-17 307.34
03-18 234.93
03-19 205.63
03-20 193.14
03-21 189.07
03-22 184.0
03-23 173.67
03-24 267.0
03-25 207.67
03-26 180.53
03-27 187.27
03-28 195.27
03-29 219.2
03-30 219.47
03-31 197.86
04-01 286.0
04-02 205.53
04-03 196.0
04-04 229.29
04-05 213.4
04-06 184.53
04-07 205.2
04-08 300.98
04-09 193.39
04-10 168.01
04-11 158.67
04-12 146.45
04-13 203.52
04-14 204.18
04-15 175.55
04-16 254.67
04-17 231.24
04-18 174.46
04-19 170.67
04-20 199.22
04-21 208.67
04-22 187.39
04-23 192.82
04-24 176.39
04-25 143.42
04-26 150.83
04-27 271.79
04-28 174.41
04-29 147.89
04-30 156.39
05-01 343.83
05-02 225.17
05-03 188.67
05-04 189.08
05-05 174.28
05-06 303.45
05-07 210.25
05-08 156.42
05-09 163.53
05-10 180.29
05-11 201.9
05-12 139.89
05-13 135.48
05-14 104.38
05-15 112.7
05-16 178.46
05-17 142.54
05-18 130.39
05-19 233.78
05-20 142.49
05-21 166.44
05-22 121.5
05-23 122.14
05-24 211.79
05-25 135.4
05-26 144.2
05-27 107.77
05-28 119.21
05-29 123.63
05-30 107.32
05-31 108.98
06-01 100.67
06-02 110.84
06-03 90.94
06-04 85.03
06-05 77.62
06-06 81.41
06-07 67.87
06-08 128.41
06-09 80.74
06-10 85.17
06-11 102.35
06-12 121.56
06-13 84.63
06-14 199.99
06-15 148.59
06-16 88.32
06-17 74.59
06-18 104.32
06-19 112.51
06-20 88.84
06-21 64.24
06-22 60.52
06-23 68.38
06-24 85.58
06-25 72.71
06-26 63.18
06-27 52.91
06-28 87.8
06-29 67.71
06-30 50.69
07-01 62.08
07-02 69.59
07-03 135.86
07-04 124.73
07-05 67.05
07-06 48.13
07-07 81.0
07-08 68.84
07-09 72.8
07-10 142.23
07-11 101.7
07-12 64.76
07-13 47.48
07-14 49.29
07-15 67.36
07-16 59.38
07-17 94.72
07-18 84.32
07-19 71.09
07-20 47.57
07-21 38.85
07-22 50.59
07-23 58.52
07-24 49.09
07-25 37.49
07-26 115.61
07-27 43.71
07-28 43.13
07-29 49.91
07-30 64.91
07-31 53.27
08-01 49.05
08-02 62.02
08-03 52.15
08-04 63.15
08-05 60.87
08-06 44.68
08-07 40.54
08-08 92.68
08-09 82.29
08-10 59.47
08-11 48.31
08-12 48.76
08-13 52.18
08-14 67.13
08-15 53.3
08-16 63.77
08-17 46.34
08-18 60.26
08-19 69.7
08-20 54.05
08-21 79.69
08-22 73.42
08-23 54.13
08-24 88.56
08-25 46.17
08-26 38.85
08-27 32.6
08-28 76.87
08-29 169.64
08-30 74.65
08-31 55.76
09-01 43.67
09-02 47.07
09-03 99.08
09-04 61.32
09-05 48.36
09-06 86.81
09-07 126.82
09-08 73.16
09-09 148.57
09-10 113.41
09-11 83.52
09-12 68.98
09-13 82.28
09-14 91.67
09-15 57.97
09-16 48.92
09-17 41.09
09-18 38.49
09-19 70.04
09-20 43.32
09-21 44.07
09-22 39.19
09-23 40.99
09-24 112.85
09-25 74.64
09-26 107.11
09-27 92.79
09-28 64.14
09-29 90.62
09-30 298.83
10-01 194.5
10-02 102.0
10-03 98.78
10-04 77.65
10-05 92.71
10-06 67.03
10-07 65.45
10-08 84.8
10-09 62.13
10-10 55.68
10-11 47.48
10-12 59.87
10-13 53.59
10-14 75.4
10-15 74.47
10-16 52.66
10-17 92.51
10-18 55.81
10-19 50.89
10-20 94.99
10-21 62.96
10-22 61.57
10-23 55.31
10-24 54.22
10-25 63.37
10-26 60.62
10-27 100.04
10-28 116.34
10-29 111.38
10-30 222.69
10-31 171.0
11-01 117.11
11-02 111.89
11-03 230.75
11-04 114.21
11-05 93.03
11-06 88.9
11-07 92.89
11-08 84.61
11-09 79.01
11-10 87.42
11-11 73.72
11-12 120.82
11-13 100.44
11-14 108.33
11-15 82.44
11-16 92.31
11-17 110.71
11-18 105.36
11-19 87.95
11-20 89.14
11-21 81.0
11-22 74.01
11-23 79.47
11-24 100.64
11-25 117.65
11-26 86.76
11-27 161.69
11-28 140.22
11-29 95.13
11-30 102.64
12-01 178.86
12-02 124.12
12-03 117.77
12-04 113.96
12-05 95.34
12-06 124.33
12-07 143.19
12-08 206.82
12-09 143.16
12-10 280.37
12-11 229.62
12-12 141.83
12-13 121.9
12-14 179.08
12-15 144.65
12-16 125.91
12-17 166.3
12-18 206.84
12-19 222.62
12-20 174.41
12-21 155.52
12-22 265.62
12-23 189.47
12-24 229.78
12-25 293.92
12-26 216.41
12-27 161.28
12-28 229.16
12-29 233.21
12-30 239.36
12-31 194.31

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index