Overview Realtime Historical Map View
Flood Watch
2026-09-13T14:00:00-04:00

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of southern Connecticut, including the following area, Northern New Haven. * WHEN...From Sunday morning through Sunday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Showers with heavy downpours and a few thunderstorms early Sunday morning into midday Sunday may lead to flooding. Average rainfall amounts are forecast to range from 1.5 to 3 inches with locally higher amounts up around 5 inches possible. Peak hourly rates could reach 1.5 to 2.5 inches. - http://www.weather.gov/safety/flood

Housatonic River At Stevenson, 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 3277.92
01-02 3328.45
01-03 3410.58
01-04 3390.55
01-05 3397.42
01-06 3593.0
01-07 3368.25
01-08 2966.0
01-09 2770.25
01-10 5070.64
01-11 4355.25
01-12 3163.75
01-13 3601.5
01-14 3950.17
01-15 3064.75
01-16 2531.83
01-17 2986.08
01-18 3092.31
01-19 3415.5
01-20 2481.46
01-21 2472.17
01-22 2268.46
01-23 2545.42
01-24 2720.62
01-25 3081.69
01-26 4185.58
01-27 3700.33
01-28 3246.77
01-29 3448.15
01-30 2678.93
01-31 2217.29
02-01 2080.64
02-02 2152.14
02-03 2134.5
02-04 2272.79
02-05 2909.0
02-06 2235.77
02-07 2280.46
02-08 1734.08
02-09 1858.93
02-10 1366.85
02-11 1513.21
02-12 2022.21
02-13 2349.57
02-14 2651.62
02-15 1784.14
02-16 1249.86
02-17 1901.25
02-18 1609.0
02-19 1583.23
02-20 1498.21
02-21 1389.71
02-22 1264.54
02-23 1831.07
02-24 1706.57
02-25 2892.5
02-26 2340.62
02-27 3044.71
02-28 2258.29
02-29 3929.25
03-01 2319.79
03-02 2901.71
03-03 2232.21
03-04 2413.86
03-05 1700.93
03-06 2284.0
03-07 3304.93
03-08 3318.71
03-09 3069.86
03-10 3366.77
03-11 2815.43
03-12 3255.92
03-13 3176.64
03-14 3515.07
03-15 3228.0
03-16 3117.36
03-17 2728.93
03-18 3046.21
03-19 2250.53
03-20 2361.14
03-21 2065.6
03-22 2034.29
03-23 2313.87
03-24 2432.6
03-25 3200.73
03-26 2903.36
03-27 2834.29
03-28 2827.93
03-29 3213.27
03-30 2914.07
03-31 3357.43
04-01 3847.73
04-02 3822.13
04-03 3750.67
04-04 4018.79
04-05 4446.27
04-06 4632.07
04-07 4118.67
04-08 4211.87
04-09 3666.07
04-10 4380.53
04-11 3278.6
04-12 3011.86
04-13 2884.93
04-14 3785.5
04-15 3291.69
04-16 3886.31
04-17 3967.92
04-18 3197.38
04-19 3112.15
04-20 2838.38
04-21 3091.64
04-22 3161.86
04-23 2261.86
04-24 2388.86
04-25 2796.23
04-26 2350.29
04-27 2670.93
04-28 2633.79
04-29 2596.07
04-30 2627.93
05-01 3604.87
05-02 3502.36
05-03 2901.93
05-04 3638.27
05-05 3578.36
05-06 3322.53
05-07 2771.53
05-08 2413.07
05-09 3013.13
05-10 3156.27
05-11 2603.07
05-12 2222.71
05-13 2483.86
05-14 2069.77
05-15 1041.15
05-16 1515.33
05-17 1873.64
05-18 2662.73
05-19 2528.8
05-20 1397.29
05-21 1794.13
05-22 2181.93
05-23 1503.87
05-24 2621.87
05-25 2425.93
05-26 1897.07
05-27 1555.93
05-28 1638.27
05-29 1631.87
05-30 2062.93
05-31 1995.47
06-01 1543.33
06-02 2107.2
06-03 1318.53
06-04 1481.6
06-05 1207.86
06-06 1494.0
06-07 1315.71
06-08 1673.43
06-09 1184.8
06-10 1639.47
06-11 1582.67
06-12 1368.93
06-13 1951.36
06-14 1873.71
06-15 2347.13
06-16 1739.2
06-17 1423.8
06-18 1682.0
06-19 1407.79
06-20 1818.21
06-21 1365.64
06-22 1306.0
06-23 1019.36
06-24 788.0
06-25 1710.62
06-26 1407.54
06-27 1138.07
06-28 1470.79
06-29 1327.86
06-30 1300.93
07-01 1560.93
07-02 1658.14
07-03 1465.71
07-04 1625.62
07-05 1198.6
07-06 1285.27
07-07 1168.5
07-08 1022.36
07-09 1513.57
07-10 1756.67
07-11 2221.14
07-12 1828.69
07-13 1815.86
07-14 1416.27
07-15 2526.47
07-16 2049.08
07-17 2643.46
07-18 2648.36
07-19 1980.27
07-20 1462.07
07-21 1277.4
07-22 1565.07
07-23 828.93
07-24 1014.47
07-25 723.4
07-26 737.67
07-27 913.29
07-28 845.0
07-29 1403.07
07-30 1176.4
07-31 1366.2
08-01 1510.0
08-02 1583.43
08-03 971.53
08-04 1375.67
08-05 1064.4
08-06 998.6
08-07 624.47
08-08 957.77
08-09 830.15
08-10 1156.54
08-11 1436.87
08-12 449.87
08-13 459.67
08-14 732.8
08-15 976.87
08-16 690.93
08-17 725.5
08-18 462.31
08-19 1220.14
08-20 994.21
08-21 1024.71
08-22 1348.62
08-23 1146.07
08-24 1331.0
08-25 1125.43
08-26 1111.6
08-27 717.53
08-28 898.73
08-29 3465.33
08-30 2104.73
08-31 1733.5
09-01 1532.67
09-02 3198.07
09-03 2517.47
09-04 1621.13
09-05 1575.07
09-06 1375.0
09-07 2285.4
09-08 2107.73
09-09 3454.53
09-10 2176.93
09-11 1876.67
09-12 1471.13
09-13 1919.0
09-14 1436.29
09-15 1224.93
09-16 815.64
09-17 460.79
09-18 712.14
09-19 716.79
09-20 859.86
09-21 609.86
09-22 716.08
09-23 937.29
09-24 1132.79
09-25 1612.79
09-26 2267.86
09-27 1630.79
09-28 1490.23
09-29 2056.43
09-30 4657.08
10-01 2743.92
10-02 2014.38
10-03 1637.85
10-04 1801.08
10-05 2200.07
10-06 1521.54
10-07 1846.93
10-08 1222.93
10-09 1201.93
10-10 1432.86
10-11 1384.43
10-12 1360.86
10-13 1368.0
10-14 1027.77
10-15 1540.0
10-16 1164.54
10-17 455.57
10-18 1147.86
10-19 1432.54
10-20 1281.92
10-21 1332.69
10-22 1548.0
10-23 985.71
10-24 1720.79
10-25 1395.36
10-26 1579.69
10-27 2512.43
10-28 3094.77
10-29 1540.86
10-30 1619.92
10-31 2166.33
11-01 3350.36
11-02 2708.69
11-03 1996.31
11-04 2506.21
11-05 2267.79
11-06 2212.08
11-07 2734.08
11-08 1960.69
11-09 1233.08
11-10 1497.23
11-11 1418.0
11-12 1330.08
11-13 1617.77
11-14 1572.36
11-15 1454.36
11-16 1634.79
11-17 1221.64
11-18 1679.62
11-19 1608.0
11-20 1310.92
11-21 1426.86
11-22 1218.0
11-23 1751.69
11-24 1293.54
11-25 1751.23
11-26 1969.64
11-27 1939.67
11-28 2612.31
11-29 1626.43
11-30 2435.29
12-01 2203.93
12-02 2768.69
12-03 1996.43
12-04 2948.36
12-05 2531.36
12-06 1880.23
12-07 1834.36
12-08 3228.79
12-09 2782.0
12-10 3916.21
12-11 3730.5
12-12 3586.93
12-13 3382.79
12-14 2678.67
12-15 2761.0
12-16 3109.25
12-17 3125.25
12-18 4028.0
12-19 4584.92
12-20 4884.83
12-21 5181.18
12-22 4235.67
12-23 3470.31
12-24 4700.62
12-25 4808.92
12-26 4468.0
12-27 4678.83
12-28 4234.55
12-29 4563.36
12-30 3886.27
12-31 3749.42

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index