Hartwell Lake Low, High and Mean Elevations by water year, with ranks (Rank of 1 is lowest) WY Low_Date Low_EL Hi_Date Hi_EL Mean_El Mean_El_Rank Low_El_Rank Hi_El_Rank 1962 1962-09-20 654.80 1962-04-06 664.40 659.71 60 40 60 1963 1963-01-11 652.88 1963-03-19 663.21 657.61 25 23 43 1964 1963-12-31 654.66 1964-04-08 665.40 659.51 51 39 65 1965 1964-12-26 654.54 1965-04-06 662.65 659.33 47 38 35 1966 1966-01-04 653.38 1966-03-14 663.46 657.66 26 26 48 1967 1966-10-19 653.02 1967-06-07 664.33 658.54 32 25 58 1968 1968-09-29 654.52 1968-06-12 661.22 658.70 37 37 22 1969 1968-11-19 653.60 1969-04-26 664.32 658.44 31 28 57 1970 1970-09-30 648.83 1970-04-06 660.69 657.31 24 15 18 1971 1971-01-01 647.28 1971-05-19 660.84 654.87 14 9 20 1972 1971-12-25 655.60 1972-06-22 661.79 658.54 33 49 24 1973 1972-10-27 656.09 1973-04-12 664.02 659.35 48 58 53 1974 1973-12-15 656.43 1974-02-21 661.64 659.58 55 62 23 1975 1975-01-04 655.69 1975-03-21 664.33 659.03 40 50 58 1976 1975-12-24 655.25 1976-05-31 664.06 659.28 46 47 54 1977 1977-09-03 654.31 1977-04-01 663.09 658.34 30 35 40 1978 1978-09-30 655.81 1978-05-21 661.91 658.68 36 52 25 1979 1978-12-30 653.40 1979-04-19 663.75 659.20 45 27 50 1980 1980-09-19 654.84 1980-04-02 664.40 659.61 57 41 60 1981 1981-09-30 647.95 1981-06-15 655.87 653.63 9 13 7 1982 1981-12-24 642.40 1982-06-15 662.13 654.21 10 2 27 1983 1983-09-30 654.88 1983-04-13 663.18 659.14 42 42 42 1984 1983-10-08 654.25 1984-05-08 663.37 660.24 63 33 45 1985 1985-09-28 655.90 1985-04-23 660.52 658.92 39 53 16 1986 1986-09-01 647.30 1985-12-04 659.45 654.67 12 10 12 1987 1986-10-11 646.27 1987-05-26 662.60 656.17 17 7 33 1988 1988-09-30 647.24 1988-04-24 653.24 650.73 4 8 4 1989 1988-12-30 645.36 1989-08-07 659.98 650.75 5 5 14 1990 1990-09-29 654.96 1990-03-05 664.12 659.63 58 44 55 1991 1990-12-20 653.84 1991-05-06 663.39 658.87 38 31 46 1992 1991-12-28 655.78 1992-06-15 662.54 659.03 41 51 32 1993 1993-09-30 656.10 1992-12-05 663.29 660.05 62 59 44 1994 1993-12-31 652.87 1994-08-22 664.47 658.06 29 22 62 1995 1994-12-03 655.94 1995-03-06 662.92 659.66 59 55 39 1996 1996-01-05 657.04 1996-03-18 663.99 660.36 64 64 52 1997 1997-09-24 655.93 1997-03-10 663.14 659.52 52 54 41 1998 1997-10-24 655.10 1998-03-20 663.98 659.53 53 45 51 1999 1999-09-25 653.77 1999-06-30 660.06 656.94 19 30 15 2000 2000-09-21 652.31 2000-05-08 658.36 655.05 15 20 10 2001 2001-01-19 648.29 2001-06-18 655.00 652.39 8 14 6 2002 2002-09-13 645.68 2002-05-21 653.22 650.02 3 6 3 2003 2002-11-02 647.52 2003-05-26 663.44 657.01 20 11 47 2004 2004-09-02 656.36 2004-09-29 662.68 659.18 44 61 37 2005 2005-09-30 659.08 2005-04-05 662.53 660.80 65 65 31 2006 2006-09-13 653.69 2006-01-30 659.67 657.72 27 29 13 2007 2006-12-22 651.66 2007-03-26 658.80 655.18 16 18 11 2008 2008-09-30 644.46 2008-04-30 652.17 648.87 1 3 1 2009 2008-12-10 637.49 2009-06-08 657.68 649.39 2 1 9 2010 2010-09-23 655.51 2010-02-08 662.63 659.41 49 48 34 2011 2011-09-22 652.93 2011-05-16 661.14 656.54 18 24 21 2012 2012-09-28 647.69 2012-04-09 653.02 651.18 6 12 2 2013 2012-12-15 644.77 2013-07-08 664.79 654.80 13 4 63 2014 2014-09-25 655.95 2014-01-20 662.67 659.56 54 56 36 2015 2014-12-20 654.32 2015-04-27 660.76 657.19 23 36 19 2016 2016-09-30 654.27 2016-01-06 664.85 658.67 35 34 64 2017 2017-01-01 648.90 2016-10-02 654.23 651.67 7 16 5 2018 2018-01-08 649.99 2018-06-03 664.19 657.10 21 17 56 2019 2019-09-27 656.28 2019-02-24 662.70 659.59 56 60 38 2020 2019-12-13 654.94 2020-02-11 663.49 659.42 50 43 49 2021 2020-11-29 656.97 2021-03-28 662.44 659.87 61 63 30 2022 2022-09-02 656.01 2021-10-17 662.39 659.18 43 57 28 2023 2022-11-22 653.97 2023-04-30 662.07 658.03 28 32 26 2024 2023-12-08 652.15 2024-03-09 662.41 657.17 22 19 29 2025 2024-12-08 655.11 2025-04-28 660.68 658.55 34 46 17 2026 2026-02-11 652.69 2025-10-01 657.00 654.31 11 21 8