# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-04-30 19:01:03 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 01154500 CONNECTICUT RIVER AT NORTH WALPOLE, 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 01154500 1936-03-19 43.80 USGS 01154500 1942-04-08 54400 6 21.48 USGS 01154500 1943-04-28 53700 6 21.04 USGS 01154500 1943-11-09 53300 6 20.91 USGS 01154500 1945-03-21 61800 6 22.63 USGS 01154500 1946-03-15 54000 2,6 USGS 01154500 1947-04-13 71900 6 25.15 USGS 01154500 1948-03-22 93000 6 29.55 USGS 01154500 1948-12-31 71000 6 24.95 USGS 01154500 1950-04-06 57900 6 22.05 USGS 01154500 1951-03-31 68600 6 24.43 USGS 01154500 1952-06-02 81700 6 27.30 USGS 01154500 1953-03-27 97000 6 30.37 USGS 01154500 1954-04-18 57600 6 21.98 USGS 01154500 1955-04-16 64400 6 23.50 USGS 01154500 1956-04-30 66700 6 23.99 USGS 01154500 1957-01-23 38900 6 17.67 USGS 01154500 1958-04-23 76300 6 26.13 USGS 01154500 1959-04-04 83700 6 27.70 USGS 01154500 1960-04-05 94400 6 29.85 USGS 01154500 1961-04-24 49700 6 20.03 USGS 01154500 1962-04-01 66700 6 24.01 USGS 01154500 1963-04-04 52800 6 20.80 USGS 01154500 1964-04-15 59600 6 22.43 USGS 01154500 1965-04-17 28100 6 14.63 USGS 01154500 1966-03-25 42200 6 18.14 USGS 01154500 1967-04-03 59200 6 22.33 USGS 01154500 1968-03-24 93100 6 29.57 USGS 01154500 1969-04-19 80200 6 26.99 USGS 01154500 1970-04-25 60000 6 22.52 USGS 01154500 1971-05-04 61700 6 22.88 USGS 01154500 1972-05-05 72700 6 25.33 USGS 01154500 1973-07-01 88600 6 28.68 USGS 01154500 1973-12-22 75000 6 25.84 USGS 01154500 1975-04-20 53200 6 20.90 USGS 01154500 1976-04-02 85100 6 27.98 USGS 01154500 1977-03-14 77700 6 26.39 USGS 01154500 1977-10-18 50300 6 20.15 USGS 01154500 1979-03-07 73100 6 25.40 USGS 01154500 1980-04-10 45600 6 18.99 USGS 01154500 1981-02-25 58500 6 22.12 USGS 01154500 1982-04-18 70300 6 25.79 USGS 01154500 1983-05-03 55500 6 21.40 USGS 01154500 1984-05-31 84500 6 27.82 USGS 01154500 1985-03-13 34800 6 16.34 USGS 01154500 1986-03-31 66800 6 24.01 USGS 01154500 1987-04-01 92700 6 29.05 USGS 01154500 1988-04-29 56100 6 21.54 USGS 01154500 1989-04-07 58200 6 22.05 USGS 01154500 1990-03-18 57600 6 21.89 USGS 01154500 1990-12-24 56600 6 21.65 USGS 01154500 1992-04-25 55500 6 21.39 USGS 01154500 1993-04-18 56500 6 21.61 USGS 01154500 1994-04-17 72600 6 25.25 USGS 01154500 1995-01-18 36400 6 16.75 USGS 01154500 1996-05-13 67600 6 24.15 USGS 01154500 1996-12-03 54300 6 21.11 USGS 01154500 1998-04-01 75000 6 25.75 USGS 01154500 1999-09-18 45500 6 18.97 USGS 01154500 2000-04-05 61600 6 22.79 USGS 01154500 2001-04-23 72600 6 25.31 USGS 01154500 2002-04-14 61500 6 22.76 USGS 01154500 2003-03-30 58500 6 22.07 USGS 01154500 2003-10-30 59700 6 22.36 USGS 01154500 2005-04-04 67700 6 24.18 USGS 01154500 2006-01-18 59400 6 22.29 USGS 01154500 2007-04-20 57200 6 21.78 USGS 01154500 2008-04-13 61300 6 22.72 USGS 01154500 2009-04-04 53100 6 20.82 USGS 01154500 2010-03-24 58700 6 22.12 USGS 01154500 2011-08-29 99700 6 31.38 USGS 01154500 2012-04-24 37100 6 17.32 USGS 01154500 2013-07-03 52000 6 20.96 USGS 01154500 2014-04-16 14:30 67000 6 24.15 USGS 01154500 2015-04-15 10:15 55400 6 21.72 USGS 01154500 2016-02-26 04:30 59900 6 22.67 USGS 01154500 2017-07-02 11:15 56600 6 21.97 USGS 01154500 2018-01-13 21:00 60400 6 22.78 USGS 01154500 2019-04-16 71700 6 25.12 USGS 01154500 2020-04-14 17:30 46100 6 19.64 USGS 01154500 2020-12-26 06:45 52300 6 21.04 USGS 01154500 2022-03-20 18:45 38100 6 17.81 USGS 01154500 2023-07-11 05:45 84400 6 28.22