condition mean min max 4 h after light 28.7015 25.4587 31.9443 8 h after light 32.6749 28.0025 37.3473 12 h after light 17.86905 11.7521 23.986 4 h after dark 35.96155 34.5655 37.3576 8 h after dark 32.5392 30.9813 34.0971 12 h after dark 33.87985 28.0391 39.7206