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Streamflow Measurements for the Nation


USGS 01209700 NORWALK RIVER AT SOUTH WILTON, CT


Fairfield County, Connecticut
Hydrologic Unit Code 01100006
Latitude  41°09'49.56", Longitude  73°25'10.36" NAD83
Drainage area 30.0  square miles
Gage datum 115.69 feet above NGVD29
Output formats
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Meas.
Number
  Date       Time Time
Datum
Measurement
Used?
  Who Measuring
Agency
Stream
flow
(ft3/s)
Gage
Height
(ft)
GH
Change
(ft)
Meas.
Duration
(hr)
Meas.
Rated
  Control Flow
Adjust.
Code
 
4362019-10-09 15:34EDTYesRGPUSGS40.51.500.030.55FairDebrisLightNONE
4352019-09-05 14:37:42EDTYesRGPUSGS4.491.000.000.58PoorDebrisLightNONE
4342019-09-05 13:31EDTYesRGPUSGS4.951.000.000.62PoorDebrisLightNONE
4332019-08-06 15:22:56EDTYesRGPUSGS10.51.120.000.65FairClearNONE
4322019-08-06 14:21EDTYesRGPUSGS11.01.120.000.50FairClearNONE
4312019-06-05 16:52:30EDTYesRGPUSGS29.61.370.000.63FairClearNONE
4302019-04-09 11:07:30EDTYesRGPUSGS47.81.540.000.50FairClearNONE
4292019-02-07 14:11:30ESTYesRGPUSGS1331.980.011.00GoodClearNONE
4282018-12-12 13:25:30ESTYesRGPUSGS59.01.580.000.75FairClearNONE
4272018-10-10 12:59:30EDTYesRGPUSGS62.71.620.000.75FairClearNONE
4262018-08-15 11:30:30EDTYesRGPUSGS78.31.710.010.80GoodClearNONE
4252018-06-07 15:13EDTYesRGPUSGS24.51.320.000.75PoorClearNONE
4242018-04-17 13:05:04EDTYesNPP/TCSUSGS3862.78-0.010.25GoodClearNONE
4232018-04-17 12:05:32EDTYesNPP/TCSUSGS3942.82-0.020.50GoodClearNONE
4222018-04-12 11:20:04EDTYesRGP/NPPUSGS47.01.54-0.011.00FairDebrisLightNONE
4212018-04-12 10:11:30EDTYesRGP/NPPUSGS51.31.54-0.010.75FairDebrisLightNONE
4202018-02-20 15:52:30ESTYesNPPUSGS1281.900.010.50FairClearNONE
4192018-02-20 15:04:32ESTYesNPPUSGS1251.900.000.25GoodClearNONE
4182017-12-14 11:02:30ESTYesNPPUSGS17.21.300.000.80FairDebrisModerateNONE
4172017-11-07 17:07ESTYesNPPUSGS14.91.220.070.75FairDebrisLightNONE
4162017-08-01 18:41EDTYesNPPUSGS5.200.99-0.011.40FairClearNONE
4152017-06-07 10:28EDTYesNPPUSGS45.51.490.000.50FairClearNONE
4142017-04-26 07:32:53EDTYesNPPUSGS1151.880.000.33FairClearNONE
4132017-04-04 17:06:25EDTYesNPPUSGS3682.68-0.020.50FairClearNONE
4122017-03-29 11:55:30EDTYesNPPUSGS1301.960.00 FairClearNONE
4112017-02-22 11:24:30ESTYesNPPUSGS55.41.620.000.75PoorDebrisLightNONE
4102016-12-01 15:24ESTYesNPPUSGS88.81.80-0.011.00FairClearNONE
4092016-10-13 11:27:30EDTYesNPPUSGS4.381.010.000.80PoorDebrisModerateNONE
4082016-09-22 10:55:30EDTYesNPPUSGS1.800.870.000.80FairDebrisLightNONE
4072016-08-10 15:19EDTYesNPPUSGS16.11.23-0.060.50PoorDebrisLightNONE
4062016-06-09 09:25:30EDTYesNPPUSGS19.71.28-0.010.50PoorClearNONE
4052016-02-09 14:07ESTYesTCSUSGS63.71.63 FairClearNONE
4042015-12-14 11:57ESTYesTCSUSGS13.41.19 PoorDebrisLightNONE
4032015-10-21 13:29EDTYesTCSUSGS4.741.07 PoorDebrisModerateNONE
4022015-09-09 14:39:30EDTYesdabUSGS1.730.830.000.30PoorClearNONE
4012015-09-09 14:02:30EDTYesdabUSGS1.580.830.000.30PoorClearNONE
4002015-08-03 16:21:30EDTYesTCSUSGS4.060.97 FairClearNONE
3992015-06-25 14:32EDTYesTCSUSGS20.11.28 FairClearNONE
3982015-03-27 14:17:24EDTYesHJW/PJMUSGS2602.380.000.30GoodClearNONE
3972015-03-27 13:34:30EDTYesHJW/PJMUSGS2622.390.000.50GoodClearNONE
3962015-02-17 14:22ESTYesJWMUSGS24.51.33 PoorIceShoreNONE
3952015-01-07 14:13ESTYesHJWUSGS41.31.490.000.50PoorClearNONE
3942014-10-08 12:43:30EDTYesJRNUSGS13.91.24 FairDebrisLightNONE
3932014-07-22 11:35:30EDTYesJRNUSGS10.71.140.000.50FairClearNONE
3922014-04-09 13:01EDTYesJRNUSGS1221.950.000.50GoodClearNONE
3912014-03-11 14:06EDTYesJRNUSGS44.21.54 GoodClearNONE
3902013-10-29 13:38EDTYesJRNUSGS4.871.070.001.00PoorDebrisHeavyNONE
3892013-09-09 12:52EDTYesJRNUSGS6.241.030.000.80GoodClearNONE
3882013-06-14 11:41EDTYesJRN/DGTUSGS4882.91 PoorUnspecifedNONE
3872013-05-16 12:40EDTYesJRNUSGS19.81.250.000.80FairClearNONE
3862013-03-06 14:22ESTYesJRNUSGS78.11.720.001.00GoodClearNONE
3852013-02-25 13:20ESTYesJRNUSGS65.21.660.000.80GoodClearNONE
3842012-10-24 11:26EDTYesJRNUSGS30.71.390.000.50PoorDebrisLightNONE
3832012-09-13 11:23EDTYesJRNUSGS11.81.160.000.50FairClearNONE
3822012-07-17 12:51EDTYesJRNUSGS22.81.320.000.50FairClearNONE
3812012-06-07 13:50EDTYesJRNUSGS41.61.51-0.010.50FairClearNONE
3802012-04-16 13:11EDTYesJRNUSGS14.61.21 FairClearNONE
3792012-02-09 14:26ESTYesJRNUSGS38.61.490.000.50GoodClearNONE
3782011-10-18 11:19EDTYesJRNUSGS59.91.670.001.00FairClearNONE
3772011-08-08 11:28EDTYesRAMUSGS23.01.33 PoorDebrisLightNONE
3762011-06-03 07:33:14EDTYesRAMUSGS28.11.41 FairDebrisLightNONE
3752011-04-07 09:26EDTYesRAMUSGS46.01.56 FairClearNONE
3742010-11-03 09:33:30EDTYesramUSGS6.931.20 FairDebrisHeavyNONE
3732010-08-12 14:21:30EDTYesramUSGS1.980.93 GoodDebrisLightNONE
3722010-06-25 16:01EDTYesDNLUSGS12.21.210.000.50FairClearNONE
3712010-05-05 14:13:30EDTYesramUSGS56.91.65 GoodClearNONE
3702010-03-30 18:07:30EDTYesRAM/JMUSGS14205.10 0.70FairUnspecifedNONE
3692010-03-23 13:31EDTYesJMP/GKHUSGS9073.98 FairClearNONE
3682010-03-23 11:00EDTYesJMP/GKHUSGS10204.31 FairClearNONE
3672010-02-24 13:45ESTYesJMP/JMUSGS3322.62 GoodClearNONE
3662009-12-07 12:54ESTYesJSWUSGS74.21.79 0.50FairUnspecifedNONE
3652009-10-07 13:48EDTYesRAMUSGS22.01.40 0.60GoodDebrisModerateNONE
3642009-07-14 15:06EDTYesRAMUSGS19.01.31 FairDebrisLightNONE
3632009-05-27 13:43EDTYesJAO/RAMUSGS22.01.38 FairDebrisLightNONE
3622009-04-09 10:37EDTYesKMBUSGS61.91.63 GoodClearNONE
3612009-03-18 11:12EDTYesJRNUSGS38.61.50 GoodClearNONE
3602009-02-10 12:28ESTYesJRNUSGS49.01.580.000.50FairClearNONE
3592008-10-07 09:50EDTYesJRNUSGS16.01.300.000.50FairClearNONE
3582008-08-19 13:21EDTYesJRNUSGS6.461.100.001.00FairClearNONE
3572008-03-24 12:33EDTYesKMBUSGS89.21.830.000.60GoodClearNONE
3562008-01-17 10:38ESTYesjaoUSGS57.01.650.001.00GoodClearNONE
3552007-11-01 08:19EDTYesPLPUSGS16.61.29-0.010.60FairDebrisLightNONE
3542007-07-26 07:38EDTYesPLPUSGS9.931.18-0.010.60FairClearNONE
3532007-04-16 18:10EDTYesPLP/JMPUSGS15804.98-0.030.60FairDebrisModerateNONE
3522007-04-16 07:29EDTYesPLP/JMPUSGS30008.01-0.271.00FairDebrisModerateNONE
3512007-01-31 07:35ESTYesPLPUSGS36.61.450.000.50FairClearNONE
3502006-11-30 11:20ESTYesPLPUSGS1111.880.010.60FairClearNONE
3492006-09-26 08:41EDTYesPLPUSGS12.61.140.000.60FairClearNONE
3482006-08-01 07:50EDTYesPLPUSGS14.71.180.000.50FairClearNONE
3472006-05-23 11:00EDTYesPLPUSGS99.01.82-0.010.60FairClearNONE
3462006-04-06 10:11EDTYesPLPUSGS44.11.470.000.60FairClearNONE
3452005-10-14 12:10EDTYesPLPUSGS6723.230.000.80FairDebrisLightNONE
3442005-09-13 09:00EDTYesPLPUSGS2.770.860.000.60FairVegetationLightNONE
3432005-07-14 07:30EDTYesPLPUSGS15.41.190.000.60GoodClearNONE
3422005-05-24 12:00EDTYesPLPUSGS28.51.330.000.50FairClearNONE
3412005-04-03 08:14EDTYesPLP/TCSUSGS8123.68-0.030.90FairClearNONE
3402005-03-29 12:15ESTYesPLPUSGS3502.70-0.020.60GoodClearNONE
3392005-01-10 09:35ESTYesPLPUSGS1141.880.000.60GoodClearNONE
3382004-11-03 12:10ESTYesPLPUSGS20.01.310.000.60GoodDebrisModerateNONE
3372004-09-21 10:08EDTYesjaoUSGS99.41.820.001.50GoodClearNONE
3362004-07-14 13:47EDTYesjaoUSGS19.01.230.001.00FairVegetationLightNONE
3352004-05-13 10:25EDTYesjaoUSGS42.51.480.001.00GoodClearNONE
3342004-03-09 10:58ESTYesjaoUSGS68.41.640.001.50GoodClearNONE
3332003-11-13 12:56ESTYesjaoUSGS44.01.530.001.00GoodDebrisModerateNONE
3322003-10-20 12:58EDTYesjaoUSGS24.01.330.001.00FairDebrisLightNONE
3312003-09-29 13:17EDTYesjaoUSGS88.81.75-0.021.00GoodClearNONE
3302003-07-18 12:33EDTYesjaoUSGS15.91.180.001.00GoodDebrisLightNONE
3292003-06-02 09:02EDTYesjaoUSGS2322.31-0.032.00GoodUnspecifedNONE
3282003-03-21 11:22ESTYesjao/jmUSGS4652.88-0.061.20PoorUnspecifedNONE
3272003-01-13 11:40ESTYesjaoUSGS67.41.630.001.00GoodClearNONE
3262002-11-13 11:43ESTYesjaoUSGS72.41.74-0.041.50GoodDebrisModerateNONE
3252002-07-18 11:31EDTYesjaoUSGS5.340.960.000.50FairClearNONE
3242002-07-09 13:38EDTYesjmp/kbUSGS8.421.020.000.60Poor NONE
3232002-05-09 11:41EDTYesjaoUSGS36.51.440.000.90FairDebrisLightNONE
3222002-04-04 12:13ESTYesjaoUSGS53.81.570.000.80FairDebrisModerateNONE
3212002-01-08 13:25ESTYesjaoUSGS10.81.12-0.010.30GoodDebrisLightNONE
3202001-11-26 10:46ESTYesjaoUSGS14.91.240.000.50FairDebrisModerateNONE
3192001-10-26 10:26EDTYesjaoUSGS5.241.060.000.60FairDebrisHeavyNONE
3182001-07-23 13:16EDTYesjaoUSGS5.580.960.000.80FairVegetationLightNONE
3172001-05-29 12:25EDTYesjaoUSGS34.61.400.000.90FairClearNONE
3162001-03-14 10:18ESTYesjaoUSGS1882.14-0.021.50GoodUnspecifedNONE
3152000-12-13 11:02ESTYesjaoUSGS14.41.180.001.00GoodDebrisLightNONE
3142000-10-31 09:55ESTYesSLPUSGS5.261.050.001.00FairDebrisHeavyNONE
3132000-07-12 14:18EDTYesjaoUSGS9.141.060.001.50FairClearNONE
3122000-05-11 15:20EDTYesjaoUSGS46.71.500.000.90GoodClearNONE
3112000-02-07 15:13ESTYesjaoUSGS24.21.300.001.00FairClearNONE
3101999-12-16 15:00ESTYesjao/jmUSGS93.11.770.001.00FairClearNONE
3091999-11-04 13:09ESTYesjaoUSGS70.81.670.000.60FairDebrisModerateNONE
3081999-09-01 12:14EDTYesjaoUSGS2.300.850.000.90PoorVegetationLightNONE
3071999-06-14 14:00EDTYesjaoUSGS12.01.130.000.80FairClearNONE
3061999-03-23 12:11ESTYesjaoUSGS3022.55-0.021.00GoodUnspecifedNONE
3051999-01-25 13:05ESTYesjrn/tsUSGS2272.33-0.021.00GoodClearNONE
3041999-01-12 12:57ESTYesjaoUSGS37.91.430.000.80GoodClearNONE
3031998-11-13 13:30ESTYesjaoUSGS12.81.210.000.80GoodDebrisHeavyNONE
3021998-09-29 12:15EDTYestmcUSGS3.370.900.000.50GoodDebrisLightNONE
3011998-08-10 14:15EDTYestmcUSGS3.490.890.000.50GoodClearNONE
3001998-07-08 12:30EDTYestmcUSGS11.91.130.000.50GoodClearNONE
2991998-02-10 12:15ESTYestmcUSGS56.91.560.000.50GoodClearNONE
2981998-01-30 14:00ESTYestmcUSGS85.61.740.000.50GoodClearNONE
2971997-09-12 10:00EDTYestmcUSGS12.81.14-0.010.50GoodClearNONE
2961997-08-28 10:15EDTYestmcUSGS19.71.25-0.050.50GoodClearNONE
2951997-08-14 15:00EDTYestmcUSGS5.160.950.000.50GoodClearNONE
2941997-07-07 13:20EDTYestmcUSGS5.820.970.000.50GoodClearNONE
2931997-04-29 15:00EDTYestmcUSGS1221.920.000.50GoodClearNONE
2921996-12-09 14:45ESTYestmcUSGS2662.400.000.50GoodClearNONE
2911996-09-20 12:45EDTYestmcUSGS49.61.540.000.50GoodClearNONE
2901996-07-08 15:00EDTYestmcUSGS11.21.110.000.50GoodClearNONE
2891996-05-16 13:30EDTYestmcUSGS78.01.690.020.50GoodClearNONE
2881996-03-20 13:15ESTYesTMCUSGS1642.090.000.50GoodClearNONE
2871996-01-25 11:30ESTYesTMCUSGS2562.43-0.030.50GoodClearNONE
2861995-11-30 12:45ESTYestmcUSGS31.51.400.000.50GoodClearNONE
2851995-07-20 10:35EDTYestmc/ssUSGS7.061.070.000.50GoodClearNONE
2841995-06-14 13:15EDTYesTMC/SSUSGS19.71.270.000.50GoodClearNONE
2831995-03-21 11:15ESTYesTMCUSGS53.41.580.010.50GoodClearNONE
2821995-01-27 12:45ESTYesTMCUSGS72.01.680.000.50GoodClearNONE
2811995-01-27 11:45ESTYestmcUSGS73.01.680.000.50UnspecifiedClearNONE
2801994-11-28 13:15ESTYesTMCUSGS1552.080.000.50GoodClearNONE
2791994-08-18 12:00EDTYesTMCUSGS1742.150.030.50GoodClearNONE
2781994-08-16 13:00EDTYesTMCUSGS15.41.210.000.50GoodClearNONE
2771994-06-07 12:45EDTYesTMCUSGS16.31.240.000.50GoodClearNONE
2761994-05-12 12:15EDTYesTMCUSGS46.11.540.000.50GoodClearNONE
2751994-02-14 11:25ESTYesTMCUSGS35.61.450.000.50GoodClearNONE
2741993-12-02 11:25ESTYesTMCUSGS22.31.330.000.50GoodDebrisLightNONE
2731993-10-20 12:00EDTYesTMCUSGS13.71.240.000.50GoodDebrisModerateNONE
2721993-09-10 11:30EDTYesTMCUSGS4.220.970.000.50GoodClearNONE
2711993-07-22 13:40EDTYesTMCUSGS2.420.890.000.50GoodClearNONE
2701993-07-22 12:45EDTYesTMCUSGS2.440.880.000.50GoodClearNONE
2691993-05-18 12:30EDTYesTMCUSGS23.41.350.000.50GoodClearNONE
2681993-03-26 13:30ESTYesTMCUSGS3202.560.030.50FairClearNONE
2671993-02-01 15:37ESTYesgpr/jaoUSGS59.81.580.000.50GoodClearNONE
2661992-11-13 13:15ESTYesTMCUSGS1302.04-0.040.50GoodDebrisModerateNONE
2651992-09-18 11:40EDTYesTMCUSGS14.11.210.000.50GoodClearNONE
2641992-07-21 13:45EDTYesTMCUSGS13.11.180.000.50GoodClearNONE
2631992-05-12 11:30EDTYesTMCUSGS27.01.390.000.50GoodClearNONE
2621992-03-26 11:15ESTYesTMCUSGS46.71.540.000.50GoodClearNONE
2611992-01-29 11:30ESTYesTMCUSGS32.01.430.000.50GoodClearNONE
2601991-11-05 12:30ESTYesTMCUSGS11.21.220.000.50PoorDebrisHeavyNONE
2591991-09-25 10:30EDTYesTMCUSGS2052.260.080.50GoodClearNONE
2581991-07-25 12:00EDTYestmcUSGS16.41.25-0.010.50GoodClearNONE
2571991-05-02 12:30EDTYesTMCUSGS65.71.65-0.010.50GoodClearNONE
2561991-03-28 13:00ESTYesTMCUSGS71.91.70-0.010.50GoodClearNONE
2551991-01-31 14:00ESTYesTMCUSGS1001.83-0.020.50GoodClearNONE
2541990-10-16 10:52EDTYesTBS/LAWUSGS36.11.430.000.50GoodClearNONE
2531990-08-15 10:45EDTYesTMCUSGS41.41.500.000.50GoodClearNONE
2521990-07-26 14:45EDTYesTMCUSGS6.211.020.000.50GoodClearNONE
2511990-05-16 13:00EDTYesTMCUSGS1101.900.010.50GoodClearNONE
2501990-03-07 14:10ESTYesTMCUSGS41.91.490.010.50GoodClearNONE
2491990-02-02 13:15ESTYesTMCUSGS1201.941.000.50GoodClearNONE
2481989-11-03 11:45ESTYesTMCUSGS1231.960.000.50GoodClearNONE
2471989-09-18 11:50EDTYesTMCUSGS13.51.230.000.50GoodClearNONE
2461989-06-29 10:37EDTYesHAHUSGS33.81.430.000.60GoodClearNONE
2451989-06-10 09:50EDTYesHEH/JMUSGS3742.71-0.020.50GoodClearNONE
2441989-05-24 10:26EDTYesHAH/BSDUSGS4802.940.000.50FairClearNONE
2431989-05-24 09:59EDTYesHAH/BSDUSGS4732.96-0.020.50FairClearNONE
2421989-03-01 11:40ESTYesHAHUSGS37.81.46-0.010.50GoodClearNONE
2411989-03-01 10:35ESTYesHAHUSGS40.01.470.000.50GoodClearNONE
2401989-01-23 12:55ESTYesHAHUSGS24.51.340.000.50GoodClearNONE
2391988-11-03 14:05ESTYesHAHUSGS29.71.380.000.60GoodClearNONE
2381988-09-19 11:45EDTYesHAHUSGS4.890.960.000.50GoodDebrisModerateNONE
2371988-09-19 11:15EDTYesHAHUSGS4.430.960.000.50GoodDebrisModerateNONE
2361988-08-02 15:42EDTYesHAHUSGS10.31.070.000.50GoodClearNONE
2351988-08-02 15:00EDTYesHAHUSGS10.21.070.000.50GoodClearNONE
2341988-08-01 13:01EDTYesHAHUSGS11.61.100.000.50GoodClearNONE
2331988-06-07 13:21EDTYesBSD/HAHUSGS14.51.200.001.00FairClearNONE
2321988-03-23 12:59ESTYesBSDUSGS30.31.410.000.50GoodClearNONE
2311988-02-02 11:25ESTYesBSDUSGS64.41.660.021.00GoodClearNONE
2301987-10-23 13:02EDTYesBSDUSGS11.91.220.000.50GoodDebrisModerateNONE
2281987-09-03 12:37EDTYesJRMUSGS6.111.020.000.50GoodClearNONE
2291987-09-03 11:48EDTYesJRMUSGS7.181.020.000.50GoodClearNONE
2271987-09-02 14:00EDTYesJRMUSGS8.161.040.000.50GoodClearNONE
2261987-06-04 -- ----YesJRM/MEMUSGS31.91.37-0.011.00GoodClearNONE
2251987-03-23 -- ----YesBSDUSGS39.01.520.000.50GoodClearNONE
2241987-02-19 -- ----YesBSD/JRMUSGS35.01.430.020.80GoodClearNONE
2231986-11-07 -- ----YesBSDUSGS11.31.320.000.50GoodDebrisHeavyNONE
2221986-09-19 -- ----YesBSDUSGS3.591.080.000.50FairDebrisLightNONE
2211986-07-22 -- ----YesBSDUSGS6.181.090.000.50GoodClearNONE
2201986-06-05 -- ----YesBSDUSGS5.931.120.000.70FairClearNONE
2191986-04-22 -- ----YesBSDUSGS56.01.63-0.010.50GoodClearNONE
2181986-03-04 -- ----YesBSDUSGS48.01.570.000.50GoodClearNONE
2171986-01-08 -- ----YesBSDUSGS30.81.460.010.50FairIceShoreNONE
2161985-12-06 -- ----YesJMCUSGS96.81.770.000.50GoodClearNONE
2151985-09-28 -- ----YesMAC/GPRUSGS2582.25-0.020.50GoodClearNONE
2031984-05-30 13:55EDTYeslaw/malUSGS13704.060.020.50PoorClearNONE
1721980-04-10 11:47ESTYesbsd/tpUSGS12404.30-0.120.50GoodClearNONE
1711980-04-10 -- ----Yeslaw/tsUSGS29606.27 UnspecifiedClearNONE