condition mean min max 4 h after light 41.1357 38.096 44.1754 8 h after light 33.29575 29.0691 37.5224 12 h after light 32.568400000000004 23.4522 41.6846 4 h after dark 42.252066666666664 37.8257 44.7918 8 h after dark 37.07606666666667 32.6836 45.8157 12 h after dark 55.0996 43.4131 68.0156