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 23:10:20 EST 2015 Userid: jcweaver Agency: USGS Station: 02146300 Station name: Irwin Creek near Charlotte Station status: Active Drainage area: 30.7 sqmi County: Mecklenburg Period of record string: May 1962 to current HUC: 03050103 Flow conditions: unregulated Begin stat date: Begin record End stat date: 09/30/2012 Begin statistics WY: 1962 End statistics WY: 2012 Statistics POR: Full POR year: 49.44931507 POR year recent: 49.44931507 POR class: 26 to 50 Period of record : Full period ==> Begin year: 1962 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 02146300 10/01/1962 09/30/1963 1963-2005; 2007-12 1963 Daily discharge 365 38.8 7.4 09/25/1963 8.5 9.2 12 18 30 67 102 996 03/06/1963 40 17 8 02146300 10/01/1963 09/30/1964 1963-2005; 2007-12 1964 Daily discharge 366 38.8 7.8 07/05/1964 8.8 9.7 12 18 31 61 132 725 04/07/1964 39 16 8 02146300 10/01/1964 09/30/1965 1963-2005; 2007-12 1965 Daily discharge 365 42.8 7.1 09/26/1965 9.7 12 15 20 32 69 158 988 10/16/1964 40 10 13 02146300 10/01/1965 09/30/1966 1963-2005; 2007-12 1966 Daily discharge 365 28.0 5.6 07/24/1966 8.0 8.4 9.7 12 22 49 89 840 03/04/1966 44 22 4 02146300 10/01/1966 09/30/1967 1963-2005; 2007-12 1967 Daily discharge 365 31.4 6.4 08/20/1967 9.4 9.8 12 14 24 53 103 1300 08/23/1967 40 19 6 02146300 10/01/1967 09/30/1968 1963-2005; 2007-12 1968 Daily discharge 366 37.1 6.6 09/22/1968 8.5 9.4 11 16 30 70 122 1020 03/12/1968 39 11 8 02146300 10/01/1968 09/30/1969 1963-2005; 2007-12 1969 Daily discharge 365 38.3 6.1 10/06/1968 9.9 11 13 18 34 88 147 506 02/02/1969 60 23 8 02146300 10/01/1969 09/30/1970 1963-2005; 2007-12 1970 Daily discharge 365 27.5 6.8 09/06/1970 8.5 9.3 11 14 20 45 105 443 04/01/1970 40 17 6 02146300 10/01/1970 09/30/1971 1963-2005; 2007-12 1971 Daily discharge 365 48.2 6.1 10/18/1970 8.2 11 15 19 37 101 201 1000 05/13/1971 48 8 20 02146300 10/01/1971 09/30/1972 1963-2005; 2007-12 1972 Daily discharge 366 49.5 8.1 09/14/1972 10 12 19 26 42 102 188 630 10/16/1971 37 7 16 02146300 10/01/1972 09/30/1973 1963-2005; 2007-12 1973 Daily discharge 365 55.3 8.6 10/22/1972 10 11 15 26 43 95 198 1600 02/02/1973 42 14 10 02146300 10/01/1973 09/30/1974 1963-2005; 2007-12 1974 Daily discharge 365 49.7 8.1 11/24/1973 9.8 11 14 20 37 110 241 1330 09/06/1974 49 13 15 02146300 10/01/1974 09/30/1975 1963-2005; 2007-12 1975 Daily discharge 365 78.6 6.8 08/25/1975 10 11 16 26 48 137 290 2600 05/30/1975 46 12 9 02146300 10/01/1975 09/30/1976 1963-2005; 2007-12 1976 Daily discharge 366 33.4 6.6 09/12/1976 9.0 10 15 21 29 62 103 489 12/31/1975 41 7 15 02146300 10/01/1976 09/30/1977 1963-2005; 2007-12 1977 Daily discharge 365 52.7 7.1 09/05/1977 9.7 11 14 20 34 83 160 2490 10/09/1976 41 11 17 02146300 10/01/1977 09/30/1978 1963-2005; 2007-12 1978 Daily discharge 365 47.5 8.2 09/20/1978 9.3 10 15 24 38 88 161 868 01/25/1978 37 9 8 02146300 10/01/1978 09/30/1979 1963-2005; 2007-12 1979 Daily discharge 365 52.7 8.4 10/19/1978 9.1 9.7 14 22 37 88 183 1270 09/30/1979 39 11 16 02146300 10/01/1979 09/30/1980 1963-2005; 2007-12 1980 Daily discharge 366 45.7 6.4 09/22/1980 8.3 9.5 15 22 38 87 156 706 03/28/1980 37 11 11 02146300 10/01/1980 09/30/1981 1963-2005; 2007-12 1981 Daily discharge 365 24.0 5.1 08/29/1981 6.2 7.2 9.6 12 18 40 84 470 02/11/1981 36 11 9 02146300 10/01/1981 09/30/1982 1963-2005; 2007-12 1982 Daily discharge 365 47.2 4.0 10/17/1981 5.3 6.4 9.2 19 40 83 160 1200 06/10/1982 37 11 17 02146300 10/01/1982 09/30/1983 1963-2005; 2007-12 1983 Daily discharge 365 43.5 3.1 09/25/1983 4.9 5.8 8.7 19 35 82 170 706 02/14/1983 37 10 8 02146300 10/01/1983 09/30/1984 1963-2005; 2007-12 1984 Daily discharge 366 55.9 4.1 10/01/1983 6.4 6.9 11 24 39 114 230 1170 12/06/1983 38 10 8 02146300 10/01/1984 09/30/1985 1963-2005; 2007-12 1985 Daily discharge 365 38.7 5.2 11/03/1984 6.6 7.6 9.7 14 23 61 134 1010 05/16/1985 38 7 9 02146300 10/01/1985 09/30/1986 1963-2005; 2007-12 1986 Daily discharge 365 31.2 3.1 07/13/1986 3.7 4.1 6.8 14 22 45 114 1720 11/21/1985 36 6 10 02146300 10/01/1986 09/30/1987 1963-2005; 2007-12 1987 Daily discharge 365 42.2 3.2 10/05/1986 4.4 6.1 10 16 30 83 132 1090 02/28/1987 38 9 10 02146300 10/01/1987 09/30/1988 1963-2005; 2007-12 1988 Daily discharge 366 32.5 4.0 08/27/1988 5.5 6.4 8.9 14 26 82 125 732 11/27/1987 40 13 8 02146300 10/01/1988 09/30/1989 1963-2005; 2007-12 1989 Daily discharge 365 47.0 5.8 09/19/1989 6.9 7.7 9.9 16 34 121 199 1500 09/22/1989 37 11 8 02146300 10/01/1989 09/30/1990 1963-2005; 2007-12 1990 Daily discharge 365 48.2 5.2 09/24/1990 5.6 6.2 11 19 31 78 188 1180 05/28/1990 37 10 8 02146300 10/01/1990 09/30/1991 1963-2005; 2007-12 1991 Daily discharge 365 58.8 4.7 10/07/1990 6.9 7.7 14 22 39 117 259 1120 03/03/1991 39 9 15 02146300 10/01/1991 09/30/1992 1963-2005; 2007-12 1992 Daily discharge 366 42.0 5.3 08/11/1992 6.3 6.9 8.5 14 27 86 195 910 06/04/1992 39 13 10 02146300 10/01/1992 09/30/1993 1963-2005; 2007-12 1993 Daily discharge 365 58.5 3.4 09/30/1993 4.9 6.7 12 23 39 138 232 1470 10/04/1992 39 9 10 02146300 10/01/1993 09/30/1994 1963-2005; 2007-12 1994 Daily discharge 365 39.9 3.2 10/05/1993 4.4 6.1 8.9 13 24 85 181 875 08/17/1994 36 5 20 02146300 10/01/1994 09/30/1995 1963-2005; 2007-12 1995 Daily discharge 365 51.9 6.1 10/08/1994 8.1 8.8 11 15 30 109 201 2960 08/27/1995 38 13 9 02146300 10/01/1995 09/30/1996 1963-2005; 2007-12 1996 Daily discharge 366 55.6 7.7 09/23/1996 11 12 15 22 38 86 216 1030 01/27/1996 46 21 9 02146300 10/01/1996 09/30/1997 1963-2005; 2007-12 1997 Daily discharge 365 57.0 8.1 09/20/1997 9.7 11 14 18 30 75 190 5010 07/23/1997 45 15 11 02146300 10/01/1997 09/30/1998 1963-2005; 2007-12 1998 Daily discharge 365 54.3 8.1 08/02/1998 9.6 11 14 24 45 128 224 983 04/09/1998 58 24 7 02146300 10/01/1998 09/30/1999 1963-2005; 2007-12 1999 Daily discharge 365 27.1 6.6 09/12/1999 8.5 9.1 11 14 20 52 86 451 01/23/1999 39 21 4 02146300 10/01/1999 09/30/2000 1963-2005; 2007-12 2000 Daily discharge 366 33.7 5.2 09/16/2000 7.6 9.0 11 15 25 64 130 571 10/11/1999 38 12 10 02146300 10/01/2000 09/30/2001 1963-2005; 2007-12 2001 Daily discharge 365 24.1 4.1 10/18/2000 7.1 7.7 9.1 11 17 43 80 702 03/29/2001 41 25 8 02146300 10/01/2001 09/30/2002 1963-2005; 2007-12 2002 Daily discharge 365 24.5 4.1 09/13/2002 6.0 7.5 9.2 11 16 48 93 614 07/14/2002 41 16 11 02146300 10/01/2002 09/30/2003 1963-2005; 2007-12 2003 Daily discharge 365 85.4 5.2 10/06/2002 10 13 18 30 58 193 358 2100 05/22/2003 41 9 10 02146300 10/01/2003 09/30/2004 1963-2005; 2007-12 2004 Daily discharge 366 36.5 8.2 07/15/2004 9.6 10 11 13 20 59 174 818 09/07/2004 62 31 5 02146300 10/01/2004 09/30/2005 1963-2005; 2007-12 2005 Daily discharge 365 33.1 5.4 09/11/2005 7.8 9.5 12 15 25 62 132 653 03/28/2005 37 8 15 02146300 10/01/2006 09/30/2007 1963-2005; 2007-12 2007 Daily discharge 365 41.8 4.9 09/27/2007 7.3 8.4 11 17 25 73 154 1450 03/02/2007 38 10 14 02146300 10/01/2007 09/30/2008 1963-2005; 2007-12 2008 Daily discharge 366 35.1 4.4 10/09/2007 6.1 7.2 9.3 12 21 58 121 1740 08/27/2008 37 15 10 02146300 10/01/2008 09/30/2009 1963-2005; 2007-12 2009 Daily discharge 365 38.6 8.3 09/03/2009 9.5 10 12 16 25 79 157 846 06/05/2009 50 21 9 02146300 10/01/2009 09/30/2010 1963-2005; 2007-12 2010 Daily discharge 365 66.8 7.8 10/09/2009 13 23 28 37 50 113 217 1140 01/25/2010 48 13 12 02146300 10/01/2010 09/30/2011 1963-2005; 2007-12 2011 Daily discharge 365 43.4 4.0 09/13/2011 9.5 11 16 24 30 68 124 3060 08/05/2011 43 10 12 02146300 10/01/2011 09/30/2012 1963-2005; 2007-12 2012 Daily discharge 366 35.2 6.6 09/24/2012 9.3 11 13 16 25 84 152 445 03/03/2012 65 33 9