condition mean min max 4 h after light 20.606749999999998 20.1154 21.0981 8 h after light 14.613150000000001 13.8362 15.3901 12 h after light 14.56005 12.8991 16.221 4 h after dark 18.305366666666668 17.2974 19.1924 8 h after dark 24.821866666666665 22.0842 27.9714 12 h after dark 19.725133333333332 19.4444 20.2013