condition mean min max 4 h after light 43.232995 30.973108 55.492882 8 h after light 48.148358 45.512127 50.784589 12 h after light 44.4563135 41.271217 47.64141 4 h after dark 33.6319165 29.522133 37.7417 8 h after dark 32.1780295 27.1525 37.203559 12 h after dark 29.649815 29.649815 29.649815