condition mean min max 4 h after light 13.4623835 12.487487 14.43728 8 h after light 13.379456999999999 12.676798 14.082116 12 h after light 13.266368 12.718143 13.814593 4 h after dark 14.880241999999999 14.649414 15.11107 8 h after dark 18.098008 15.591439 20.604577 12 h after dark 14.707959 14.707959 14.707959