condition mean min max 4 h after light 23.824283 21.497726 26.15084 8 h after light 29.7855105 27.631587 31.939434 12 h after light 38.876011 32.427395 45.324627 4 h after dark 34.599259 33.624673 35.573845 8 h after dark 36.774867 34.114522 39.435212 12 h after dark 40.676065 40.676065 40.676065