condition mean min max 4 h after light 46.208600000000004 40.6191 51.7981 8 h after light 37.23215 35.8642 38.6001 12 h after light 48.93055 48.3379 49.5232 4 h after dark 51.26445 50.3583 52.1706 8 h after dark 61.444050000000004 56.9278 65.9603 12 h after dark 63.2106 62.3653 64.0559