condition mean min max 3 h after light 3683.0466666666666 3353.35 3994.47 6 h after light 3270.53 3031.04 3737.5 9 h after light 3559.46 2605.21 4244.07 12 h after light 3532.94 3236.71 3865.8 3 h after dark 4199.68 3663.13 4957.16 6 h after dark 4633.0 4224.6 5072.66 9 h after dark 4536.02 3716.13 5258.93 12 h after dark 4223.58 3606.92 4840.24