# # U.S. Geological Survey # National Water Information System # Retrieved: 2025-05-13 08:54:36 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 09521000 COLORADO RIVER AT YUMA, AZ # # 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 09521000 1878-06-24 23.00 3 USGS 09521000 1879-05-12 20.00 3 USGS 09521000 1880-05-31 24.00 3 USGS 09521000 1881-06-14 23.50 3 USGS 09521000 1882-06-18 22.60 3 USGS 09521000 1883-07-03 24.50 3 USGS 09521000 1884-06-27 28.50 3 USGS 09521000 1885-06-13 24.70 3 USGS 09521000 1886-06-06 26.80 3 USGS 09521000 1887-06-10 23.50 3 USGS 09521000 1888-06-25 21.80 3 USGS 09521000 1889-06-07 22.40 3 USGS 09521000 1890-06-05 25.50 3 USGS 09521000 1891-02-26 33.20 3 USGS 09521000 1892-07-03 25.50 3 USGS 09521000 1893-05-28 25.20 3 USGS 09521000 1894-06-14 23.70 3 USGS 09521000 1895-01-20 28.20 3 USGS 09521000 1896-09-30 24.50 3 USGS 09521000 1897-06-09 26.10 3 USGS 09521000 1898-06-27 23.60 3 USGS 09521000 1899-07-01 27.00 3 USGS 09521000 1900-06-10 26.00 3 USGS 09521000 1901-05-31 27.20 3 USGS 09521000 1902-05-26 24.50 3 USGS 09521000 1903-06-27 73000 2 27.70 3 USGS 09521000 1904-06-07 51500 2 26.00 3 USGS 09521000 1905-03-20 112000 2 30.30 3 USGS 09521000 1905-11-30 109000 2 31.80 3 USGS 09521000 1907-06-30 116000 2 28.60 3 USGS 09521000 1908-06-26 62700 2 25.45 3 USGS 09521000 1909-06-24 150000 2 USGS 09521000 1910-05-22 73500 23.35 2,3 1910-06-12 23.55 USGS 09521000 1911-06-24 79400 25.95 3 USGS 09521000 1912-06-22 146000 29.15 3 USGS 09521000 1913-06-10 63600 22.85 3 USGS 09521000 1914-06-15 141000 29.05 3 USGS 09521000 1915-02-03 102000 26.80 3 USGS 09521000 1916-01-22 250000 34.00 3 USGS 09521000 1917-07-03 144000 29.35 3 USGS 09521000 1918-07-03 94900 23.70 3 USGS 09521000 1919-06-06 58100 23.30 3 USGS 09521000 1920-06-08 190000 30.70 2,3 1920-02-25 32.00 USGS 09521000 1921-06-27 188000 31.25 3 USGS 09521000 1922-06-10 117000 27.40 3 USGS 09521000 1923-06-08 101000 25.40 3 USGS 09521000 1923-12-30 69800 25.10 3 USGS 09521000 1925-06-08 53200 23.45 2,3 1925-06-30 23.60 USGS 09521000 1926-06-16 73200 25.20 2,3 1926-05-15 25.50 USGS 09521000 1927-02-21 92400 29.40 3 USGS 09521000 1928-06-13 99400 28.30 3 USGS 09521000 1929-06-07 91000 27.26 3 USGS 09521000 1930-06-09 54500 25.16 3 USGS 09521000 1931-06-16 29000 22.37 3 USGS 09521000 1932-06-05 90800 28.56 3 USGS 09521000 1933-06-23 70700 26.10 3 USGS 09521000 1934-05-20 22900 21.02 6 USGS 09521000 1935-06-26 15600 6 21.46 USGS 09521000 1936-08-01 9520 6 20.17 USGS 09521000 1937-02-10 23200 6 24.22 USGS 09521000 1938-03-06 21700 6 23.26 USGS 09521000 1939-09-07 34900 6 24.57 USGS 09521000 1940-01-16 13800 6 19.48 USGS 09521000 1941-06-05 30400 6 22.66 USGS 09521000 1942-02-07 31800 6 20.49 USGS 09521000 1942-12-14 19000 6 18.67 USGS 09521000 1944-02-24 21200 6 18.89 USGS 09521000 1945-03-05 22900 6 18.90 USGS 09521000 1946-02-09 16800 6 17.60 USGS 09521000 1947-02-05 14200 6 16.56 USGS 09521000 1948-01-31 21300 6 18.27 USGS 09521000 1949-01-13 24000 6 18.07 USGS 09521000 1950-01-12 22900 6 16.88 USGS 09521000 1951-04-05 16100 6 15.57 USGS 09521000 1952-03-20 23600 6 17.60 USGS 09521000 1953-02-12 24300 6 16.76 USGS 09521000 1954-06-01 18200 6 16.66 USGS 09521000 1955-01-04 17600 6 16.15 USGS 09521000 1956-07-07 3970 6 13.48 USGS 09521000 1957-07-08 3390 6 13.00 USGS 09521000 1958-04-24 15800 6 16.50 USGS 09521000 1959-01-06 13700 6 15.10 USGS 09521000 1960-01-19 10300 6 14.49 USGS 09521000 1960-12-07 8900 6 13.80 USGS 09521000 1962-01-04 2170 6 12.24 USGS 09521000 1963-00-00 5050 6,Bm 14.43 2,Bm 1963-09-18 14.43 USGS 09521000 1964-01-18 3060 6 12.90