condition mean min max 4 h after light 32.97175 31.6499 34.2936 8 h after light 34.92675 34.7386 35.1149 12 h after light 36.3262 34.7275 37.9249 4 h after dark 43.96055 42.4292 45.4919 8 h after dark 45.9925 44.7733 47.2117 12 h after dark 41.2095 40.7078 41.7112