Minimum, mean, maximum, and flow-duration statistics of daily mean discharges for each full water year during period of record at streamgage. Notes: (1) The statistics generated are based on approved daily-mean data and may not match those published by the USGS in official publications. (2) This table is designed to allow import of data into files supported by other software. (3) Some columns in the table below contain site attributes and data duplicated on each line of record to provide user flexibility in manipulation of data in other files. (4) The user is responsible for assessment and use of the statistics from this site. DATE runprocess RUN: Fri Jan 9 17:17:38 EST 2015 Userid: jcweaver Agency: USGS Station: 02080500 Station name: Roanoke River at Roanoke Rapids Station status: Active Drainage area: 8384 sqmi County: Halifax Period of record string: December 1911 to current HUC: 03010107 Flow conditions: regulated Begin stat date: 10/01/1963 End stat date: 09/30/2012 Begin statistics WY: 1964 End statistics WY: 2012 Statistics POR: Specified POR year: 99.89863014 POR year recent: 99.89863014 POR class: 76 to 100 Period of record : Specified period ==> Begin year: 1964 water year ==> End year: 2012 water year Data heading explanations. Site_number -- Site identification number. Statistics_begin_date -- Begin date of period for analysis. Statistics_end_date -- End date of period for analysis. Full_water_years_summary -- Period of record containing full water years only. Water_Year -- Water year for which the statistics apply. Statistic -- Discharge statistic (e.g., daily, 7-day, etc). No_values -- Number of values used in the calculation. Mean -- Mean of daily mean values for the categorical period. Min -- Minimum of daily mean values for the categorical period. Min_date_CalYr -- Calendar date (or year) on which the minimum value occurred. Percentile_05 -- 05 percentile of daily mean values for the categorical period. Percentile_10 -- 10 percentile of daily mean values for the categorical period. Percentile_25 -- 25 percentile of daily mean values for the categorical period. Percentile_50 (Median) -- 50 percentile (median) of daily mean values for the categorical period. Percentile_75 -- 75 percentile of daily mean values for the categorical period. Percentile_90 -- 90 percentile of daily mean values for the categorical period. Percentile_95 -- 95 percentile of daily mean values for the categorical period. Max_date_CalYr -- Calendar date (or year) on which the minimum value occurred. Max -- Maximum of daily mean values for the categorical period. Days_at_or_below_10Percentile -- Number of days during water year daily mean discharge at or below 10th percentile. Events_at_or_below_10Percentile -- Number of events of one or more days during water year daily mean discharge at or below 10th percentile. Max_event_duration -- Duration (number of days) of longest event. Site_number Statistics_begin_date Statistics_end_date Full_water_years_summary Water_Year Statistic No_values Mean Min Min_date_CalYr Percentile_05 Percentile_10 Percentile_25 Percentile_50(Median) Percentile_75 Percentile_90 Percentile_95 Max Max_date_CalYr Days_at_or_below_10Percentile Events_at_or_below_10Percentile Max_event_duration 02080500 10/01/1963 09/30/1964 1964-93; 1995; 1997-2012 1964 Daily discharge 366 4920 1060 12/29/1963 1150 2060 2550 4680 6600 8880 10100 13100 06/10/1964 37 25 2 02080500 10/01/1964 09/30/1965 1964-93; 1995; 1997-2012 1965 Daily discharge 365 6030 1030 01/03/1965 1150 2190 2840 5570 8300 11500 13700 18400 03/28/1965 37 23 4 02080500 10/01/1965 09/30/1966 1964-93; 1995; 1997-2012 1966 Daily discharge 365 4680 965 12/26/1965 1220 1980 2560 3830 6240 8250 10300 14300 03/04/1966 37 20 4 02080500 10/01/1966 09/30/1967 1964-93; 1995; 1997-2012 1967 Daily discharge 365 4770 956 11/06/1966 1140 1940 2440 4260 6880 8540 9380 11200 10/13/1966 37 25 3 02080500 10/01/1967 09/30/1968 1964-93; 1995; 1997-2012 1968 Daily discharge 366 5220 935 12/25/1967 1230 1950 2420 5040 7410 9210 10500 14600 07/17/1968 36 22 3 02080500 10/01/1968 09/30/1969 1964-93; 1995; 1997-2012 1969 Daily discharge 365 4710 971 11/17/1968 1240 1730 2200 3820 6420 9210 10800 13700 07/18/1969 37 23 4 02080500 10/01/1969 09/30/1970 1964-93; 1995; 1997-2012 1970 Daily discharge 365 5250 866 11/29/1969 1100 1850 2100 5050 7510 10700 12700 14600 02/26/1970 37 21 5 02080500 10/01/1970 09/30/1971 1964-93; 1995; 1997-2012 1971 Daily discharge 365 7500 818 11/15/1970 1760 1840 2180 6620 10800 15100 19400 19600 03/04/1971 39 26 4 02080500 10/01/1971 09/30/1972 1964-93; 1995; 1997-2012 1972 Daily discharge 366 11200 976 01/23/1972 1800 2070 6130 10800 17300 19800 20200 23700 06/30/1972 37 22 4 02080500 10/01/1972 09/30/1973 1964-93; 1995; 1997-2012 1973 Daily discharge 365 12900 1050 03/04/1973 2120 2620 8090 13400 19400 19600 19600 19800 05/08/1973 36 16 7 02080500 10/01/1973 09/30/1974 1964-93; 1995; 1997-2012 1974 Daily discharge 365 9160 917 11/14/1973 1650 2000 2540 8630 14400 19200 19500 20600 01/15/1974 36 21 3 02080500 10/01/1974 09/30/1975 1964-93; 1995; 1997-2012 1975 Daily discharge 365 11600 1160 11/03/1974 1190 1600 2400 10900 18500 22500 35100 35600 04/14/1975 36 9 26 02080500 10/01/1975 09/30/1976 1964-93; 1995; 1997-2012 1976 Daily discharge 366 6500 1190 12/14/1975 1290 2280 2460 5860 8730 12900 18400 19300 10/02/1975 38 20 5 02080500 10/01/1976 09/30/1977 1964-93; 1995; 1997-2012 1977 Daily discharge 365 5710 1150 11/27/1976 1260 2270 2340 3850 8200 12100 14600 18900 11/09/1976 38 18 6 02080500 10/01/1977 09/30/1978 1964-93; 1995; 1997-2012 1978 Daily discharge 365 12200 1230 12/14/1977 1820 2320 4360 10100 18600 22400 34500 35300 05/01/1978 39 15 11 02080500 10/01/1978 09/30/1979 1964-93; 1995; 1997-2012 1979 Daily discharge 365 10700 1120 11/19/1978 1770 2270 4540 8470 18600 18800 25300 25800 03/11/1979 40 19 12 02080500 10/01/1979 09/30/1980 1964-93; 1995; 1997-2012 1980 Daily discharge 366 10400 1090 01/11/1980 2220 2350 3700 9790 17500 19400 19800 25200 10/15/1979 41 22 4 02080500 10/01/1980 09/30/1981 1964-93; 1995; 1997-2012 1981 Daily discharge 365 3120 1130 03/01/1981 1190 1280 2090 2400 3450 6110 7390 15600 01/05/1981 37 26 5 02080500 10/01/1981 09/30/1982 1964-93; 1995; 1997-2012 1982 Daily discharge 365 6840 1130 12/12/1981 1300 1690 2350 5140 10600 16800 17800 18200 06/13/1982 37 16 6 02080500 10/01/1982 09/30/1983 1964-93; 1995; 1997-2012 1983 Daily discharge 365 9320 1170 01/23/1983 2050 2110 2880 6790 14600 20300 25200 26000 04/25/1983 38 27 3 02080500 10/01/1983 09/30/1984 1964-93; 1995; 1997-2012 1984 Daily discharge 366 10700 1030 11/08/1983 2000 2090 3750 9920 18000 20100 20100 20300 04/14/1984 39 20 4 02080500 10/01/1984 09/30/1985 1964-93; 1995; 1997-2012 1985 Daily discharge 365 5500 1060 11/11/1984 1640 1960 2220 3750 7300 13300 14800 19100 08/29/1985 36 11 12 02080500 10/01/1985 09/30/1986 1964-93; 1995; 1997-2012 1986 Daily discharge 365 6150 1040 03/02/1986 1960 2140 2380 3810 7240 19100 20000 20700 11/21/1985 39 22 6 02080500 10/01/1986 09/30/1987 1964-93; 1995; 1997-2012 1987 Daily discharge 365 11500 974 11/09/1986 1040 1880 2460 8430 19000 25200 34800 35600 04/24/1987 36 9 18 02080500 10/01/1987 09/30/1988 1964-93; 1995; 1997-2012 1988 Daily discharge 366 5310 983 11/14/1987 1100 1490 2190 4540 7840 10700 12600 18000 01/03/1988 36 11 14 02080500 10/01/1988 09/30/1989 1964-93; 1995; 1997-2012 1989 Daily discharge 365 8940 1000 01/02/1989 1220 1590 2980 7630 15000 20000 20200 20800 03/24/1989 37 14 7 02080500 10/01/1989 09/30/1990 1964-93; 1995; 1997-2012 1990 Daily discharge 365 10900 1120 01/21/1990 2040 2170 4490 9640 18800 19500 20100 20600 10/08/1989 37 19 6 02080500 10/01/1990 09/30/1991 1964-93; 1995; 1997-2012 1991 Daily discharge 365 9360 1180 02/17/1991 2000 2030 3060 8840 14800 20000 20200 20500 10/27/1990 41 20 7 02080500 10/01/1991 09/30/1992 1964-93; 1995; 1997-2012 1992 Daily discharge 366 6330 1030 12/14/1991 1120 1750 2330 4430 9000 13500 20400 21000 01/14/1992 36 17 7 02080500 10/01/1992 09/30/1993 1964-93; 1995; 1997-2012 1993 Daily discharge 365 11100 1520 11/01/1992 2040 2080 2900 8930 18400 24900 35000 35400 03/31/1993 41 19 11 02080500 10/01/1994 09/30/1995 1964-93; 1995; 1997-2012 1995 Daily discharge 365 7190 1740 11/26/1994 2070 2180 2860 4800 8630 14000 20200 25300 07/11/1995 36 19 4 02080500 10/01/1996 09/30/1997 1964-93; 1995; 1997-2012 1997 Daily discharge 365 10700 1830 02/20/1997 2700 2990 6080 9650 15400 19500 21500 22600 05/14/1997 37 14 5 02080500 10/01/1997 09/30/1998 1964-93; 1995; 1997-2012 1998 Daily discharge 365 11200 1000 11/03/1997 2120 2300 3040 6500 18900 24800 31400 35500 02/24/1998 38 15 7 02080500 10/01/1998 09/30/1999 1964-93; 1995; 1997-2012 1999 Daily discharge 365 4400 1480 12/18/1998 1520 1550 2080 3010 5920 8470 10200 17900 09/16/1999 39 15 6 02080500 10/01/1999 09/30/2000 1964-93; 1995; 1997-2012 2000 Daily discharge 366 6370 1960 03/08/2000 2070 2340 3220 6190 8350 9950 13200 18600 04/28/2000 37 14 4 02080500 10/01/2000 09/30/2001 1964-93; 1995; 1997-2012 2001 Daily discharge 365 4700 1950 01/10/2001 1990 2140 2600 3640 5280 9480 10800 18300 04/07/2001 37 18 5 02080500 10/01/2001 09/30/2002 1964-93; 1995; 1997-2012 2002 Daily discharge 365 2360 1870 03/22/2002 1890 1910 2010 2060 2620 2860 3780 4450 10/03/2001 38 3 16 02080500 10/01/2002 09/30/2003 1964-93; 1995; 1997-2012 2003 Daily discharge 365 15300 2030 12/10/2002 2300 2440 7940 15700 22100 24500 29600 34500 04/25/2003 38 9 17 02080500 10/01/2003 09/30/2004 1964-93; 1995; 1997-2012 2004 Daily discharge 366 9100 2070 03/30/2004 2800 3820 6030 8160 10600 18200 20300 20600 12/14/2003 37 13 10 02080500 10/01/2004 09/30/2005 1964-93; 1995; 1997-2012 2005 Daily discharge 365 8200 2250 09/21/2005 2860 3040 5180 7650 10600 15100 16200 19600 03/30/2005 36 12 7 02080500 10/01/2005 09/30/2006 1964-93; 1995; 1997-2012 2006 Daily discharge 365 4920 1760 11/08/2005 2270 2310 2700 3660 5340 9900 14200 18100 07/12/2006 41 10 14 02080500 10/01/2006 09/30/2007 1964-93; 1995; 1997-2012 2007 Daily discharge 365 7690 1720 09/18/2007 2110 2190 2750 5590 10400 20200 20400 22300 01/06/2007 38 9 14 02080500 10/01/2007 09/30/2008 1964-93; 1995; 1997-2012 2008 Daily discharge 366 3960 1510 10/17/2007 1630 2060 2210 2540 4480 9300 11300 12500 05/20/2008 39 12 11 02080500 10/01/2008 09/30/2009 1964-93; 1995; 1997-2012 2009 Daily discharge 365 5850 1820 11/09/2008 1990 2240 2540 3780 8120 11900 17100 20800 06/09/2009 38 13 9 02080500 10/01/2009 09/30/2010 1964-93; 1995; 1997-2012 2010 Daily discharge 365 10500 1660 10/11/2009 2030 2260 3300 7720 20400 20700 20700 20900 01/25/2010 37 13 9 02080500 10/01/2010 09/30/2011 1964-93; 1995; 1997-2012 2011 Daily discharge 365 4920 1850 11/13/2010 2200 2240 2370 4300 7040 8600 9990 13900 04/20/2011 37 15 5 02080500 10/01/2011 09/30/2012 1964-93; 1995; 1997-2012 2012 Daily discharge 366 4990 1680 10/17/2011 1880 2210 2560 3910 6280 8370 9720 20600 03/31/2012 37 13 11