condition mean min max 4 h after light 17.5658 17.3631 17.7685 8 h after light 18.01815 17.5687 18.4676 12 h after light 22.888849999999998 21.0653 24.7124 4 h after dark 42.57913333333333 40.85 43.7418 8 h after dark 42.086800000000004 36.9998 46.137 12 h after dark 30.3586 26.8357 33.6317