# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-05-01 21:20:47 EDT # # ---------------------------------- WARNING ---------------------------------------- # Some of the data that you have obtained from this U.S. Geological Survey database # may not have received Director's approval. Any such data values are qualified # as provisional and are subject to revision. Provisional data are released on the # condition that neither the USGS nor the United States Government may be held liable # for any damages resulting from its use. # # More data may be available offline. # For more information on these data, contact USGS Water Data Inquiries. # This file contains the annual peak streamflow data. # # This information includes the following fields: # # agency_cd Agency Code # site_no USGS station number # peak_dt Date of peak streamflow (format YYYY-MM-DD) # peak_tm Time of peak streamflow (24 hour format, 00:00 - 23:59) # peak_va Annual peak streamflow value in cfs # peak_cd Peak Discharge-Qualification codes (see explanation below) # gage_ht Gage height for the associated peak streamflow in feet # gage_ht_cd Gage height qualification codes # year_last_pk Peak streamflow reported is the highest since this year # ag_dt Date of maximum gage-height for water year (if not concurrent with peak) # ag_tm Time of maximum gage-height for water year (if not concurrent with peak # ag_gage_ht maximum Gage height for water year in feet (if not concurrent with peak # ag_gage_ht_cd maximum Gage height code # # Sites in this file include: # USGS 01131500 CONNECTICUT RIVER NEAR DALTON, NH # # Peak Streamflow-Qualification Codes(peak_cd): # 1 ... Discharge is a Maximum Daily Average # 2 ... Discharge is an Estimate # 3 ... Discharge affected by Dam Failure # 4 ... Discharge less than indicated value, # which is Minimum Recordable Discharge at this site # 5 ... Discharge affected to unknown degree by # Regulation or Diversion # 6 ... Discharge affected by Regulation or Diversion # 7 ... Discharge is an Historic Peak # 8 ... Discharge actually greater than indicated value # 9 ... Discharge due to Snowmelt, Hurricane, # Ice-Jam or Debris Dam breakup # A ... Year of occurrence is unknown or not exact # Bd ... Day of occurrence is unknown or not exact # Bm ... Month of occurrence is unknown or not exact # C ... All or part of the record affected by Urbanization, # Mining, Agricultural changes, Channelization, or other # F ... Peak supplied by another agency # O ... Opportunistic value not from systematic data collection # R ... Revised # # Gage height qualification codes(gage_ht_cd,ag_gage_ht_cd): # 1 ... Gage height affected by backwater # 2 ... Gage height not the maximum for the year # 3 ... Gage height at different site and(or) datum # 4 ... Gage height below minimum recordable elevation # 5 ... Gage height is an estimate # 6 ... Gage datum changed during this year # 7 ... Debris, mud, or hyper-concentrated flow # 8 ... Gage height tidally affected # Bd ... Day of occurrence is unknown or not exact # Bm ... Month of occurrence is unknown or not exact # F ... Peak supplied by another agency # R ... Revised # # agency_cd site_no peak_dt peak_tm peak_va peak_cd gage_ht gage_ht_cd year_last_pk ag_dt ag_tm ag_gage_ht ag_gage_ht_cd 5s 15s 10d 6s 8s 33s 8s 27s 4s 10d 6s 8s 27s USGS 01131500 1928-04-09 44300 6 667.50 USGS 01131500 1929-04-10 28200 6 664.15 USGS 01131500 1930-04-09 17100 6 661.85 USGS 01131500 1931-04-13 15900 6 661.55 USGS 01131500 1932-04-13 20200 6 662.45 USGS 01131500 1933-04-20 35800 6 665.80 USGS 01131500 1934-04-26 31500 6 664.95 USGS 01131500 1935-04-30 22500 6 663.00 6 USGS 01131500 1936-03-20 48300 6 25.60 USGS 01131500 1937-05-01 19600 6 17.30 USGS 01131500 1938-09-22 19600 6 17.53 USGS 01131500 1939-04-23 23600 6 18.82 USGS 01131500 1940-05-04 31300 6 21.10 USGS 01131500 1941-04-17 19300 6 17.45 USGS 01131500 1942-04-27 23100 6 18.64 USGS 01131500 1943-06-18 21400 6 18.05 USGS 01131500 1944-05-07 20400 6 17.96 USGS 01131500 1945-03-31 24900 6 19.79 USGS 01131500 1945-10-02 14100 6 15.87 USGS 01131500 1947-06-04 21800 6 18.45 USGS 01131500 1948-04-03 16800 6 16.64 USGS 01131500 1949-03-29 16000 6 16.33 USGS 01131500 1950-04-22 21300 6 18.27 USGS 01131500 1950-11-26 18400 6 17.24 USGS 01131500 1952-04-22 18300 6 17.22 USGS 01131500 1953-03-28 34600 6 22.38 USGS 01131500 1954-04-24 34100 6 22.25 USGS 01131500 1955-04-17 27100 6 20.19 USGS 01131500 1956-05-01 18000 6 17.11 USGS 01131500 1957-04-22 13800 6 15.50 USGS 01131500 1958-04-23 28600 6 20.63 USGS 01131500 1959-04-07 14700 6 15.85 USGS 01131500 1960-04-20 27400 6 20.26 USGS 01131500 1961-04-25 18300 6 17.21 USGS 01131500 1962-04-10 20700 6 18.08 USGS 01131500 1963-04-23 21100 6 18.21 USGS 01131500 1964-04-16 24400 6 19.31 USGS 01131500 1965-04-23 8570 6 13.19 USGS 01131500 1966-04-24 14600 6 15.81 USGS 01131500 1967-04-05 15400 6 16.12 USGS 01131500 1968-03-25 15300 6 16.09 USGS 01131500 1969-04-19 29400 6 20.58 USGS 01131500 1970-04-27 24000 6 19.02 USGS 01131500 1971-05-05 17200 6 16.81 USGS 01131500 1972-05-06 32200 6 21.34 USGS 01131500 1973-07-02 20800 6 18.04 USGS 01131500 1974-04-25 26600 6 19.78 USGS 01131500 1975-04-21 16200 6 16.45 USGS 01131500 1976-04-01 22600 6 18.59 USGS 01131500 1977-04-02 18800 6 17.35 USGS 01131500 1978-05-11 18800 6 17.35 USGS 01131500 1979-03-27 19700 6 17.67 USGS 01131500 1980-04-12 11400 6 14.59 USGS 01131500 1981-02-24 20700 6 18.00 USGS 01131500 1982-04-20 25000 2,6 USGS 01131500 1983-05-05 17500 6 16.93 USGS 01131500 1984-06-01 28400 6 20.30 USGS 01131500 1985-04-25 12100 6 14.88 USGS 01131500 1986-03-31 25400 6 19.46 USGS 01131500 1987-04-02 29200 6 20.54 USGS 01131500 1988-04-07 17000 6 16.75 USGS 01131500 1989-04-07 27900 6 20.16 USGS 01131500 1990-03-19 38700 6 23.22 USGS 01131500 1991-04-11 21600 6 18.30 USGS 01131500 1992-04-24 26600 6 19.79 USGS 01131500 1993-04-18 17300 6 16.87 USGS 01131500 1994-04-18 27500 6 20.06 USGS 01131500 1995-01-17 29900 6 20.73 USGS 01131500 1996-04-25 30400 6 20.86 USGS 01131500 1997-04-08 15100 6 16.22 USGS 01131500 1998-04-01 42000 6 23.70 USGS 01131500 1999-09-18 16300 6 16.51 USGS 01131500 2000-05-12 24100 6 19.09 USGS 01131500 2001-04-25 32300 6 21.38 USGS 01131500 2002-04-16 32400 6 21.40 USGS 01131500 2003-03-31 19900 6 17.17 USGS 01131500 2003-10-30 16300 6 16.52 USGS 01131500 2005-04-06 18100 6 17.14 USGS 01131500 2005-10-18 31300 6 21.10 USGS 01131500 2007-04-25 21800 6 18.35 USGS 01131500 2008-04-21 19600 6 17.65 USGS 01131500 2009-04-05 14900 6 15.98 USGS 01131500 2010-03-25 16500 6 16.58 USGS 01131500 2011-04-29 33200 6 22.07 USGS 01131500 2012-03-21 15600 6 16.24 USGS 01131500 2013-05-26 21200 6 18.18 USGS 01131500 2014-04-17 02:15 35400 6 22.15 USGS 01131500 2015-04-15 13:00 18000 2,6 17.17 2 2015-04-15 0315 17.59 1 USGS 01131500 2016-02-27 03:45 13300 6 15.39 2 2016-03-13 1655 16.18 1 USGS 01131500 2017-04-13 11:45 20800 6 18.04 USGS 01131500 2018-04-30 19:30 23000 6 18.42 USGS 01131500 2019-04-22 11:15 37300 6 22.35 USGS 01131500 2020-04-15 17:15 17400 6 16.64 USGS 01131500 2021-03-27 04:15 17600 6 16.68 USGS 01131500 2022-04-15 17:20 13400 6 15.18 USGS 01131500 2023-04-16 02:30 17000 6 16.50