Hartwell Lake Elevation Percentiles by Month
Period of record Jan 1962 - Dec 2023
Month P05 P10 P20 P30 P40 P50 P60 P70 P80 P90 P95 Avg
Jan 647.32 648.56 652.60 654.07 655.97 656.86 657.41 658.03 658.80 660.20 661.26 655.67
Feb 648.66 650.64 653.84 655.89 657.11 658.00 658.54 659.14 659.85 660.78 661.77 656.83
Mar 650.08 652.01 656.25 658.16 658.93 659.47 659.92 660.50 661.10 662.11 662.91 658.47
Apr 652.02 653.19 658.14 659.55 660.02 660.34 660.69 661.11 661.76 662.37 662.84 659.46
May 652.35 654.21 658.26 659.91 660.31 660.59 660.83 661.18 661.70 662.28 662.74 659.64
Jun 651.39 653.99 657.64 659.45 660.14 660.41 660.70 661.00 661.42 661.94 662.41 659.35
Jul 650.00 653.85 656.53 658.19 659.15 659.72 660.08 660.29 660.62 661.30 661.82 658.51
Aug 648.70 652.61 654.97 656.59 657.38 658.07 658.78 659.46 660.04 660.56 661.27 657.25
Sep 647.64 649.69 653.82 655.11 655.92 656.52 657.37 658.52 659.63 660.22 660.57 656.11
Oct 647.08 648.35 652.60 654.56 655.37 655.96 657.14 658.54 659.38 660.62 661.24 655.65
Nov 646.07 648.61 651.28 654.13 654.80 656.11 657.30 657.99 658.97 659.95 660.62 655.14
Dec 645.58 648.91 651.71 653.98 654.92 655.83 656.84 657.46 658.38 660.11 660.78 654.96